rdev/gossip-revisited
1
1
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fixed build

Browse Source
This commit is contained in:
Jaime Freire
2023-11-25 08:18:02 +01:00
parent db9bb4ccdf
commit 789a5f6abc
141 changed files with 3259 additions and 2957 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
README.md
View File

@ -1,10 +1,13 @@
# Gossip ![Build status](https://travis-ci.org/edwardcapriolo/incubator-gossip.svg?)
Gossip protocol is a method for a group of nodes to discover and check the liveliness of a cluster. More information can be found at http://en.wikipedia.org/wiki/Gossip_protocol.
Gossip protocol is a method for a group of nodes to discover and check the liveliness of a cluster. More information can
be found at http://en.wikipedia.org/wiki/Gossip_protocol.
The original implementation was forked from https://code.google.com/p/java-gossip/. Several bug fixes and changes have already been added.
The original implementation was forked from https://code.google.com/p/java-gossip/. Several bug fixes and changes have
already been added.
A set of easily-run examples, illustrating various features of Gossip, are available in the gossip-examples module. The README.md file, in that module described how to run those examples.
A set of easily-run examples, illustrating various features of Gossip, are available in the gossip-examples module. The
README.md file, in that module described how to run those examples.
Below, a list of code snippits which show how to incorproate Apache Gossip into your project.
@ -23,7 +26,8 @@ To gossip you need one or more seed nodes. Seed is just a list of places to init
}
```
Here we start five gossip processes and check that they discover each other. (Normally these are on different hosts but here we give each process a distinct local ip.
Here we start five gossip processes and check that they discover each other. (Normally these are on different hosts but
here we give each process a distinct local ip.
```java
List<GossipService> clients = new ArrayList<>();

655
eclipse_template.xml
View File

@ -1,30 +1,38 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<profiles version="12">
<profile kind="CodeFormatterProfile" name="Apache UIMA Code Conventions" version="12">
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_ellipsis" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_declarations" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_annotation_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_allocation_expression" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_at_in_annotation_type_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.new_lines_at_block_boundaries" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_parameters" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_for_parameter" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_package" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_enum_constant" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_after_imports" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_while" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_before_root_tags" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_annotation_type_member_declaration" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_throws" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.format_javadoc_comments" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.indentation.size" value="2"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_postfix_operator" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_increments" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_arguments" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_inits" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_anonymous_type_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_for" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.disabling_tag" value="@formatter:off"/>
<profile kind="CodeFormatterProfile" name="Apache UIMA Code Conventions" version="12">
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_ellipsis" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_declarations" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_annotation_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_allocation_expression"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_at_in_annotation_type_declaration"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.new_lines_at_block_boundaries" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_parameters"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_for_parameter" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_package" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_enum_constant"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_after_imports" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_while" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_before_root_tags" value="insert"/>
<setting
id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_annotation_type_member_declaration"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_throws"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.format_javadoc_comments" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.indentation.size" value="2"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_postfix_operator" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_increments" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_arguments" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_inits" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_anonymous_type_declaration"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_for" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.disabling_tag" value="@formatter:off"/>
<setting id="org.eclipse.jdt.core.formatter.continuation_indentation" value="4"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_enum_constants" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_imports" value="1"/>
@ -36,256 +44,349 @@
<setting id="org.eclipse.jdt.core.formatter.comment.indent_root_tags" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.wrap_before_or_operator_multicatch" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.enabling_tag" value="@formatter:on"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_brace_in_block" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_parenthesized_expression_in_return" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_method_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_parameter" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_field" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_explicitconstructorcall_arguments" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_block" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_prefix_operator" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_between_type_declarations" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_brace_in_array_initializer" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_for" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_catch" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_arguments" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_method" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_switch" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_anonymous_type_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_parenthesized_expression" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column" value="false"/>
<setting id="org.eclipse.jdt.core.compiler.problem.enumIdentifier" value="error"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_and_in_type_parameter" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_inits" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_statements_compare_to_block" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_anonymous_type_declaration" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_wildcard" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_invocation_arguments" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_switch" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.line_length" value="100"/>
<setting id="org.eclipse.jdt.core.formatter.use_on_off_tags" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_brackets_in_array_allocation_expression" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_constant" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_invocation" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_assignment_operator" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_type_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_for" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.preserve_white_space_between_code_and_line_comments" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_local_variable" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_method_declaration" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_invocation" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_union_type_in_multicatch" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_for" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_arguments" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.keep_else_statement_on_same_line" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_binary_expression" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_parameterized_type_reference" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_array_initializer" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_field_declarations" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_annotation" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_explicit_constructor_call" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_annotation_declaration_header" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_superinterfaces" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_default" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_question_in_conditional" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_block" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_constructor_declaration" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.compact_else_if" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_parameters" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_catch" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_invocation" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.put_empty_statement_on_new_line" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_parameters_in_constructor_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_invocation_arguments" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_method_invocation" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_constructor_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.compiler.problem.assertIdentifier" value="error"/>
<setting id="org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_block_comment" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_catch_in_try_statement" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_try" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_at_end_of_file_if_missing" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_javadoc_comment" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_array_initializer" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_binary_operator" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_unary_operator" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_expressions_in_array_initializer" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.format_line_comment_starting_on_first_column" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.number_of_empty_lines_to_preserve" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_case" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_ellipsis" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_try_resources" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_assert" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_if" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_arguments" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_and_in_type_parameter" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_type_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_parenthesized_expression" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.format_line_comments" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_labeled_statement" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.align_type_members_on_columns" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_assignment" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_method_body" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_type_header" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_declaration" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_enum_constant" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_type_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_first_class_body_declaration" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_conditional_expression" value="80"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_closing_brace_in_array_initializer" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_parameters" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.format_guardian_clause_on_one_line" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_if" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_type" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_block" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_enum_declaration" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_block_in_case" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_constructor_declaration" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.format_header" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_allocation_expression" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_invocation" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_while" value="insert"/>
<setting id="org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode" value="enabled"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_switch" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_method_declaration" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.join_wrapped_lines" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_constructor_declaration" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_cases" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_bracket_in_array_allocation_expression" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_synchronized" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.new_lines_at_javadoc_boundaries" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_annotation_type_declaration" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_for" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_resources_in_try" value="80"/>
<setting id="org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_selector_in_method_invocation" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column" value="false"/>
<setting id="org.eclipse.jdt.core.compiler.source" value="1.7"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_synchronized" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_throws" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.tabulation.size" value="2"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_enum_constant" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_allocation_expression" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_bracket_in_array_reference" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_conditional" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.format_source_code" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_array_initializer" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_try" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_try_resources" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_field" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.continuation_indentation_for_array_initializer" value="2"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_question_in_wildcard" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_method" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_superclass_in_type_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_enum_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_parenthesized_expression_in_throw" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_labeled_statement" value="do not insert"/>
<setting id="org.eclipse.jdt.core.compiler.codegen.targetPlatform" value="1.7"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_switch" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_superinterfaces" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_declaration_parameters" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_brace_in_array_initializer" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_parenthesized_expression" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.format_html" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation_type_declaration" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_parameters" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_compact_if" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.indent_empty_lines" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_parameterized_type_reference" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_unary_operator" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_enum_constant" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_annotation" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_enum_declarations" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.keep_empty_array_initializer_on_one_line" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_switch" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_else_in_if_statement" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_assignment_operator" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_constructor_declaration" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_new_chunk" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_label" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_declaration_header" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_bracket_in_array_allocation_expression" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_constructor_declaration" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_conditional" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_parameterized_type_reference" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_parameters" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_arguments" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_cast" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_assert" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_member_type" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_while_in_do_statement" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_type_reference" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_parameterized_type_reference" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_qualified_allocation_expression" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_opening_brace_in_array_initializer" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_enum_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_breaks_compare_to_cases" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_declaration" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_if" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_postfix_operator" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_try" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_arguments" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_cast" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.format_block_comments" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_declaration" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.keep_imple_if_on_one_line" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_parameters_in_method_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_brackets_in_array_type_reference" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_parameters" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_for" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_declaration_throws" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_allocation_expression" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_statements_compare_to_body" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_multiple_fields" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_constant_arguments" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_prefix_operator" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_array_initializer" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.wrap_before_binary_operator" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_method_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_parameters" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_catch" value="do not insert"/>
<setting id="org.eclipse.jdt.core.compiler.compliance" value="1.7"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_bracket_in_array_reference" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_annotation" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_enum_constant_arguments" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_case" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_local_declarations" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_annotation_type_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_reference" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_declaration" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.wrap_outer_expressions_when_nested" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_paren_in_cast" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_enum_constant" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_type_declaration" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_package" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_for" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_synchronized" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_increments" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation_type_member_declaration" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_while" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_enum_constant" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_explicitconstructorcall_arguments" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_annotation" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_parameters" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_constant_header" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_constructor_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_throws" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.join_lines_in_comments" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_parameters" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_conditional" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.indent_parameter_description" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_finally_in_try_statement" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.tabulation.char" value="space"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_field_declarations" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_between_import_groups" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.lineSplit" value="100"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_annotation" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_switch" value="insert"/>
</profile>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_brace_in_block" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_parenthesized_expression_in_return"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_method_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_parameter" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_field" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_explicitconstructorcall_arguments"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_block" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_prefix_operator" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_between_type_declarations" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_brace_in_array_initializer"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_for" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_catch" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_arguments"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_method" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_switch" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_anonymous_type_declaration"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_parenthesized_expression"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column" value="false"/>
<setting id="org.eclipse.jdt.core.compiler.problem.enumIdentifier" value="error"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_and_in_type_parameter" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_inits" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_statements_compare_to_block" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_anonymous_type_declaration" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_wildcard" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_invocation_arguments"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_switch" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.line_length" value="100"/>
<setting id="org.eclipse.jdt.core.formatter.use_on_off_tags" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_brackets_in_array_allocation_expression"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_constant" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_invocation"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_assignment_operator" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_type_declaration"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_for" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.preserve_white_space_between_code_and_line_comments"
value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_local_variable" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_method_declaration" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_invocation"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_union_type_in_multicatch" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_for" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_arguments"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.keep_else_statement_on_same_line" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_binary_expression" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_parameterized_type_reference"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_array_initializer"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_field_declarations"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_annotation" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_explicit_constructor_call" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_annotation_declaration_header"
value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_superinterfaces" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_default" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_question_in_conditional" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_block" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_constructor_declaration" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.compact_else_if" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_parameters"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_catch" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_invocation"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.put_empty_statement_on_new_line" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_parameters_in_constructor_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_invocation_arguments"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_method_invocation" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_constructor_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.compiler.problem.assertIdentifier" value="error"/>
<setting id="org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_block_comment" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_catch_in_try_statement"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_try" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_at_end_of_file_if_missing" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_javadoc_comment" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_array_initializer" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_binary_operator" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_unary_operator" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_expressions_in_array_initializer" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.format_line_comment_starting_on_first_column" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.number_of_empty_lines_to_preserve" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_case" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_ellipsis" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_try_resources"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_assert" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_if" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_arguments" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_and_in_type_parameter" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_type_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_parenthesized_expression"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.format_line_comments" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_labeled_statement" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.align_type_members_on_columns" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_assignment" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_method_body" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_type_header" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_declaration"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_enum_constant"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_type_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_first_class_body_declaration" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_conditional_expression" value="80"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_closing_brace_in_array_initializer"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_parameters"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.format_guardian_clause_on_one_line" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_if" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_type" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_block" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_enum_declaration" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_block_in_case" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_constructor_declaration"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.format_header" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_allocation_expression" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_invocation"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_while" value="insert"/>
<setting id="org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode" value="enabled"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_switch" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_method_declaration" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.join_wrapped_lines" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_constructor_declaration"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_cases" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_bracket_in_array_allocation_expression"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_synchronized"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.new_lines_at_javadoc_boundaries" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_annotation_type_declaration"
value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_for" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_resources_in_try" value="80"/>
<setting id="org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_selector_in_method_invocation" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column" value="false"/>
<setting id="org.eclipse.jdt.core.compiler.source" value="1.7"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_synchronized"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_throws"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.tabulation.size" value="2"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_enum_constant" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_allocation_expression" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_bracket_in_array_reference"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_conditional" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.format_source_code" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_array_initializer"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_try" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_try_resources" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_field" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.continuation_indentation_for_array_initializer" value="2"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_question_in_wildcard" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_method" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_superclass_in_type_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_enum_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_parenthesized_expression_in_throw"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_labeled_statement"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.compiler.codegen.targetPlatform" value="1.7"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_switch" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_superinterfaces"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_declaration_parameters"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_brace_in_array_initializer"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_parenthesized_expression"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.format_html" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation_type_declaration"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_parameters"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_compact_if" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.indent_empty_lines" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_parameterized_type_reference"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_unary_operator" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_enum_constant"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_annotation" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_enum_declarations"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.keep_empty_array_initializer_on_one_line" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_switch" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_else_in_if_statement" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_assignment_operator" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_constructor_declaration"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_new_chunk" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_label" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_declaration_header"
value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_bracket_in_array_allocation_expression"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_constructor_declaration"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_conditional" value="insert"/>
<setting
id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_parameterized_type_reference"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_parameters"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_arguments"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_cast" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_assert" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_member_type" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_while_in_do_statement"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_type_reference"
value="do not insert"/>
<setting
id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_parameterized_type_reference"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_qualified_allocation_expression"
value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_opening_brace_in_array_initializer"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_enum_declaration" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_breaks_compare_to_cases" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_declaration"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_if" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_postfix_operator" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_try" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_arguments"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_cast" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.format_block_comments" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_declaration"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.keep_imple_if_on_one_line" value="false"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_declaration"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_parameters_in_method_declaration" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_brackets_in_array_type_reference"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_parameters"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_for" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_declaration_throws"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_allocation_expression"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_statements_compare_to_body" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_multiple_fields" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_constant_arguments"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_prefix_operator" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_array_initializer" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.wrap_before_binary_operator" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_method_declaration"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_parameters" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_catch" value="do not insert"/>
<setting id="org.eclipse.jdt.core.compiler.compliance" value="1.7"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_bracket_in_array_reference"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_annotation" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_enum_constant_arguments"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_case" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_local_declarations"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_annotation_type_declaration"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_reference"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_declaration"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.wrap_outer_expressions_when_nested" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_paren_in_cast" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_enum_constant" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.brace_position_for_type_declaration" value="end_of_line"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_package" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_for" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_synchronized" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_increments" value="do not insert"/>
<setting
id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation_type_member_declaration"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_while" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_enum_constant"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_explicitconstructorcall_arguments"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_annotation"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_parameters"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_constant_header"
value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_constructor_declaration"
value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_throws"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.join_lines_in_comments" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_parameters"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_conditional" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.comment.indent_parameter_description" value="true"/>
<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_finally_in_try_statement"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.tabulation.char" value="space"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_field_declarations"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_between_import_groups" value="1"/>
<setting id="org.eclipse.jdt.core.formatter.lineSplit" value="100"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_annotation"
value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_switch" value="insert"/>
</profile>
</profiles>

101
gossip-base/pom.xml
View File

@ -16,70 +16,51 @@
See the License for the specific language governing permissions and
limitations under the License.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.apache.gossip</groupId>
<artifactId>gossip-parent</artifactId>
<parent>
<groupId>org.apache.gossip</groupId>
<artifactId>gossip-parent</artifactId>
<version>0.1.3-incubating-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<name>Gossip Base</name>
<artifactId>gossip-base</artifactId>
<version>0.1.3-incubating-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<name>Gossip Base</name>
<artifactId>gossip-base</artifactId>
<version>0.1.3-incubating-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-math3 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-math3</artifactId>
<version>3.6.1</version>
</dependency>
<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>commons-math</groupId>
<artifactId>commons-math</artifactId>
<version>${commons-math.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>io.dropwizard.metrics</groupId>
<artifactId>metrics-core</artifactId>
<version>${metrics.version}</version></dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
<type>jar</type>
<scope>compile</scope>
<exclusions>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>${mockito.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>io.dropwizard.metrics</groupId>
<artifactId>metrics-core</artifactId>
<version>${metrics.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.22.0</version>
</dependency>
</dependencies>
</project>

33
gossip-base/src/main/java/org/apache/gossip/GossipSettings.java
View File

@ -17,10 +17,9 @@
*/
package org.apache.gossip;
import org.apache.gossip.lock.LockManagerSettings;
import java.util.HashMap;
import java.util.Map;
import org.apache.gossip.lock.LockManagerSettings;
/**
* In this object the settings used by the GossipService are held.
@ -107,17 +106,6 @@ public class GossipSettings {
this.gossipInterval = gossipInterval;
}
/**
* Set the cleanup interval. This is the time between the last heartbeat received from a member
* and when it will be marked as dead.
*
* @param cleanupInterval
* The cleanup interval in ms.
*/
public void setCleanupInterval(int cleanupInterval) {
this.cleanupInterval = cleanupInterval;
}
/**
* Get the gossip interval.
*
@ -127,6 +115,10 @@ public class GossipSettings {
return gossipInterval;
}
public void setGossipInterval(int gossipInterval) {
this.gossipInterval = gossipInterval;
}
/**
* Get the clean interval.
*
@ -136,6 +128,17 @@ public class GossipSettings {
return cleanupInterval;
}
/**
* Set the cleanup interval. This is the time between the last heartbeat received from a member
* and when it will be marked as dead.
*
* @param cleanupInterval
* The cleanup interval in ms.
*/
public void setCleanupInterval(int cleanupInterval) {
this.cleanupInterval = cleanupInterval;
}
public int getMinimumSamples() {
return minimumSamples;
}
@ -160,10 +163,6 @@ public class GossipSettings {
this.convictThreshold = convictThreshold;
}
public void setGossipInterval(int gossipInterval) {
this.gossipInterval = gossipInterval;
}
public String getDistribution() {
return distribution;
}

47
gossip-base/src/main/java/org/apache/gossip/LocalMember.java
View File

@ -25,32 +25,32 @@ import org.apache.gossip.accrual.FailureDetector;
/**
* This object represent a gossip member with the properties known locally. These objects are stored
* in the local list of gossip members.
*
*/
public class LocalMember extends Member {
/** The failure detector for this member */
private transient FailureDetector detector;
/**
*
* @param uri
* The uri of the member
* @param id
* id of the node
* @param heartbeat
* The current heartbeat
* @param uri The uri of the member
* @param id id of the node
* @param heartbeat The current heartbeat
*/
public LocalMember(String clusterName, URI uri, String id,
long heartbeat, Map<String,String> properties, int windowSize, int minSamples, String distribution) {
super(clusterName, uri, id, heartbeat, properties );
public LocalMember(
String clusterName,
URI uri,
String id,
long heartbeat,
Map<String, String> properties,
int windowSize,
int minSamples,
String distribution) {
super(clusterName, uri, id, heartbeat, properties);
detector = new FailureDetector(minSamples, windowSize, distribution);
}
protected LocalMember(){
protected LocalMember() {}
}
public void recordHeartbeat(long now){
public void recordHeartbeat(long now) {
detector.recordHeartbeat(now);
}
@ -63,9 +63,18 @@ public class LocalMember extends Member {
Double d = null;
try {
d = detect(System.nanoTime());
} catch (RuntimeException ex) {}
return "LocalGossipMember [uri=" + uri + ", heartbeat=" + heartbeat + ", clusterName="
+ clusterName + ", id=" + id + ", currentdetect=" + d +" ]";
} catch (RuntimeException ex) {
}
return "LocalGossipMember [uri="
+ uri
+ ", heartbeat="
+ heartbeat
+ ", clusterName="
+ clusterName
+ ", id="
+ id
+ ", currentdetect="
+ d
+ " ]";
}
}

42
gossip-base/src/main/java/org/apache/gossip/Member.java
View File

@ -21,13 +21,9 @@ import java.net.InetSocketAddress;
import java.net.URI;
import java.util.Map;
/**
* An abstract class representing a gossip member.
*
*/
/** An abstract class representing a gossip member. */
public abstract class Member implements Comparable<Member> {
protected URI uri;
protected volatile long heartbeat;
@ -42,21 +38,18 @@ public abstract class Member implements Comparable<Member> {
protected String id;
/* properties provided at startup time */
protected Map<String,String> properties;
protected Map<String, String> properties;
/**
* Constructor.
*
* @param clusterName
* The name of the cluster
* @param uri
* A URI object containing IP/hostname and port
* @param heartbeat
* The current heartbeat
* @param id
* An id that may be replaced after contact
* @param clusterName The name of the cluster
* @param uri A URI object containing IP/hostname and port
* @param heartbeat The current heartbeat
* @param id An id that may be replaced after contact
*/
public Member(String clusterName, URI uri, String id, long heartbeat, Map<String,String> properties) {
public Member(
String clusterName, URI uri, String id, long heartbeat, Map<String, String> properties) {
this.clusterName = clusterName;
this.id = id;
this.heartbeat = heartbeat;
@ -64,7 +57,8 @@ public abstract class Member implements Comparable<Member> {
this.properties = properties;
}
protected Member(){}
protected Member() {}
/**
* Get the name of the cluster the member belongs to.
*
@ -74,10 +68,9 @@ public abstract class Member implements Comparable<Member> {
return clusterName;
}
/**
* @return The member address in the form IP/host:port Similar to the toString in
* {@link InetSocketAddress}
* @return The member address in the form IP/host:port Similar to the toString in {@link
* InetSocketAddress}
*/
public String computeAddress() {
return uri.getHost() + ":" + uri.getPort();
@ -95,8 +88,7 @@ public abstract class Member implements Comparable<Member> {
/**
* Set the heartbeat of this gossip member.
*
* @param heartbeat
* The new heartbeat.
* @param heartbeat The new heartbeat.
*/
public void setHeartbeat(long heartbeat) {
this.heartbeat = heartbeat;
@ -130,8 +122,10 @@ public abstract class Member implements Comparable<Member> {
final int prime = 31;
int result = 1;
String address = computeAddress();
result = prime * result + ((address == null) ? 0 : address.hashCode()) + (clusterName == null ? 0
: clusterName.hashCode());
result =
prime * result
+ ((address == null) ? 0 : address.hashCode())
+ (clusterName == null ? 0 : clusterName.hashCode());
return result;
}
@ -157,7 +151,7 @@ public abstract class Member implements Comparable<Member> {
}
// The object is the same of they both have the same address (hostname and port).
return computeAddress().equals(((LocalMember) obj).computeAddress())
&& getClusterName().equals(((LocalMember) obj).getClusterName());
&& getClusterName().equals(((LocalMember) obj).getClusterName());
}
public int compareTo(Member other) {

13
gossip-base/src/main/java/org/apache/gossip/RemoteMember.java
View File

@ -24,24 +24,21 @@ import java.util.Map;
/**
* The object represents a gossip member with the properties as received from a remote gossip
* member.
*
*/
public class RemoteMember extends Member {
/**
* Constructor.
*
* @param uri
* A URI object containing IP/hostname and port
* @param heartbeat
* The current heartbeat
* @param uri A URI object containing IP/hostname and port
* @param heartbeat The current heartbeat
*/
public RemoteMember(String clusterName, URI uri, String id, long heartbeat, Map<String,String> properties) {
public RemoteMember(
String clusterName, URI uri, String id, long heartbeat, Map<String, String> properties) {
super(clusterName, uri, id, heartbeat, properties);
}
public RemoteMember(String clusterName, URI uri, String id) {
super(clusterName, uri, id, System.nanoTime(), new HashMap<String,String>());
super(clusterName, uri, id, System.nanoTime(), new HashMap<String, String>());
}
}

179
gossip-base/src/main/java/org/apache/gossip/StartupSettings.java
View File

@ -17,6 +17,8 @@
*/
package org.apache.gossip;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
@ -28,36 +30,26 @@ import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.log4j.Logger;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
/**
* This object represents the settings used when starting the gossip service.
*
*/
@Slf4j
public class StartupSettings {
private static final Logger log = Logger.getLogger(StartupSettings.class);
/** The id to use fo the service */
private String id;
private URI uri;
private String cluster;
/** The gossip settings used at startup. */
private final GossipSettings gossipSettings;
/** The list with gossip members to start with. */
private final List<Member> gossipMembers;
public static final int DEFAULT_BULK_TRANSFER_SIZE = 100;
/** Default setting values */
private static final boolean DEFAULT_BULK_TRANSFER = false;
public static final int DEFAULT_BULK_TRANSFER_SIZE = 100;
/** The gossip settings used at startup. */
private final GossipSettings gossipSettings;
/** The list with gossip members to start with. */
private final List<Member> gossipMembers;
/** The id to use fo the service */
private String id;
private URI uri;
private String cluster;
/**
* Constructor.
@ -73,14 +65,6 @@ public class StartupSettings {
this(id, uri, new GossipSettings(), cluster);
}
public URI getUri() {
return uri;
}
public void setUri(URI uri) {
this.uri = uri;
}
/**
* Constructor.
*
@ -97,61 +81,6 @@ public class StartupSettings {
gossipMembers = new ArrayList<>();
}
public void setCluster(String cluster) {
this.cluster = cluster;
}
public String getCluster() {
return cluster;
}
/**
* Set the id to be used for this service.
*
* @param id
* The id for this service.
*/
public void setId(String id) {
this.id = id;
}
/**
* Get the id for this service.
*
* @return the service's id.
*/
public String getId() {
return id;
}
/**
* Get the GossipSettings.
*
* @return The GossipSettings object.
*/
public GossipSettings getGossipSettings() {
return gossipSettings;
}
/**
* Add a gossip member to the list of members to start with.
*
* @param member
* The member to add.
*/
public void addGossipMember(Member member) {
gossipMembers.add(member);
}
/**
* Get the list with gossip members.
*
* @return The gossip members.
*/
public List<Member> getGossipMembers() {
return gossipMembers;
}
/**
* Parse the settings for the gossip service from a JSON file.
*
@ -215,17 +144,79 @@ public class StartupSettings {
StartupSettings settings = new StartupSettings(id, uri2, gossipSettings, cluster);
String configMembersDetails = "Config-members [";
JsonNode membersJSON = jsonObject.get("members");
Iterator<JsonNode> it = membersJSON.iterator();
while (it.hasNext()){
JsonNode child = it.next();
URI uri3 = new URI(child.get("uri").textValue());
RemoteMember member = new RemoteMember(child.get("cluster").asText(),
uri3, "", 0, new HashMap<String,String>());
settings.addGossipMember(member);
configMembersDetails += member.computeAddress();
configMembersDetails += ", ";
}
for (JsonNode child : membersJSON) {
URI uri3 = new URI(child.get("uri").textValue());
RemoteMember member = new RemoteMember(child.get("cluster").asText(),
uri3, "", 0, new HashMap<String, String>()
);
settings.addGossipMember(member);
configMembersDetails += member.computeAddress();
configMembersDetails += ", ";
}
log.info(configMembersDetails + "]");
return settings;
}
public URI getUri() {
return uri;
}
public void setUri(URI uri) {
this.uri = uri;
}
public String getCluster() {
return cluster;
}
public void setCluster(String cluster) {
this.cluster = cluster;
}
/**
* Get the id for this service.
*
* @return the service's id.
*/
public String getId() {
return id;
}
/**
* Set the id to be used for this service.
*
* @param id
* The id for this service.
*/
public void setId(String id) {
this.id = id;
}
/**
* Get the GossipSettings.
*
* @return The GossipSettings object.
*/
public GossipSettings getGossipSettings() {
return gossipSettings;
}
/**
* Add a gossip member to the list of members to start with.
*
* @param member
* The member to add.
*/
public void addGossipMember(Member member) {
gossipMembers.add(member);
}
/**
* Get the list with gossip members.
*
* @return The gossip members.
*/
public List<Member> getGossipMembers() {
return gossipMembers;
}
}

24
gossip-base/src/main/java/org/apache/gossip/accrual/FailureDetector.java
View File

@ -17,19 +17,19 @@
*/
package org.apache.gossip.accrual;
import org.apache.commons.math.MathException;
import org.apache.commons.math.distribution.ExponentialDistributionImpl;
import org.apache.commons.math.distribution.NormalDistributionImpl;
import org.apache.commons.math.stat.descriptive.DescriptiveStatistics;
import org.apache.log4j.Logger;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.math3.distribution.ExponentialDistribution;
import org.apache.commons.math3.distribution.NormalDistribution;
import org.apache.commons.math3.exception.MathArithmeticException;
import org.apache.commons.math3.stat.descriptive.DescriptiveStatistics;
@Slf4j
public class FailureDetector {
public static final Logger LOGGER = Logger.getLogger(FailureDetector.class);
private final DescriptiveStatistics descriptiveStatistics;
private final long minimumSamples;
private volatile long latestHeartbeatMs = -1;
private final String distribution;
private volatile long latestHeartbeatMs = -1;
public FailureDetector(long minimumSamples, int windowSize, String distribution) {
descriptiveStatistics = new DescriptiveStatistics(windowSize);
@ -62,18 +62,18 @@ public class FailureDetector {
double probability;
if (distribution.equals("normal")) {
double standardDeviation = descriptiveStatistics.getStandardDeviation();
standardDeviation = standardDeviation < 0.1 ? 0.1 : standardDeviation;
probability = new NormalDistributionImpl(descriptiveStatistics.getMean(), standardDeviation).cumulativeProbability(delta);
standardDeviation = Math.max(standardDeviation, 0.1);
probability = new NormalDistribution(descriptiveStatistics.getMean(), standardDeviation).cumulativeProbability(delta);
} else {
probability = new ExponentialDistributionImpl(descriptiveStatistics.getMean()).cumulativeProbability(delta);
probability = new ExponentialDistribution(descriptiveStatistics.getMean()).cumulativeProbability(delta);
}
final double eps = 1e-12;
if (1 - probability < eps) {
probability = 1.0;
}
return -1.0d * Math.log10(1.0d - probability);
} catch (MathException | IllegalArgumentException e) {
LOGGER.debug(e);
} catch (MathArithmeticException | IllegalArgumentException e) {
log.error("Error!", e);
return null;
}
}

12
gossip-base/src/main/java/org/apache/gossip/crdt/Crdt.java
View File

@ -16,8 +16,8 @@
* limitations under the License.
*/
package org.apache.gossip.crdt;
/**
*
* Immutable type
*
* @param <SetType>
@ -25,15 +25,15 @@ package org.apache.gossip.crdt;
*/
public interface Crdt<SetType, MergeReturnType extends Crdt<SetType, MergeReturnType>> {
MergeReturnType merge(MergeReturnType other);
SetType value();
/**
* Called to self optimize. Some CRDTs may use some mechanism to clean up be
* removing obsolete data outside the scope of merging. IE this could clean up
* temporal values, old copies etc.
* Called to self optimize. Some CRDTs may use some mechanism to clean up be removing obsolete
* data outside the scope of merging. IE this could clean up temporal values, old copies etc.
*
* @return the Crdt structure optimized
*/
MergeReturnType optimize();
}

10
gossip-base/src/main/java/org/apache/gossip/crdt/CrdtAddRemoveSet.java
View File

@ -19,10 +19,14 @@ package org.apache.gossip.crdt;
import java.util.Set;
// Interface extends CrdtSet interface with add and remove operation that are guaranteed to be immutable.
// If your implementation provide immutable add/remove operations you can extend AbstractCRDTStringSetTest to check it in the most ways.
// Interface extends CrdtSet interface with add and remove operation that are guaranteed to be
// immutable.
// If your implementation provide immutable add/remove operations you can extend
// AbstractCRDTStringSetTest to check it in the most ways.
public interface CrdtAddRemoveSet<T, SetType extends Set<T>, R extends CrdtAddRemoveSet<T, SetType, R>> extends CrdtSet<T, SetType, R> {
public interface CrdtAddRemoveSet<
T, SetType extends Set<T>, R extends CrdtAddRemoveSet<T, SetType, R>>
extends CrdtSet<T, SetType, R> {
R add(T element);
R remove(T element);

42
gossip-base/src/main/java/org/apache/gossip/crdt/CrdtBiFunctionMerge.java
View File

@ -20,35 +20,35 @@ package org.apache.gossip.crdt;
import java.util.function.BiFunction;
@SuppressWarnings("rawtypes")
public class CrdtBiFunctionMerge implements BiFunction<Crdt,Crdt,Crdt> {
public class CrdtBiFunctionMerge implements BiFunction<Crdt, Crdt, Crdt> {
@SuppressWarnings("unchecked")
public static Crdt applyStatic(Crdt t, Crdt u) {
if (t == null && u == null) {
return null;
} else if (t == null) {
return u;
} else if (u == null) {
return t;
}
if (!u.getClass().equals(t.getClass())) {
throw new IllegalArgumentException("Can not merge " + t.getClass() + " " + u.getClass());
}
return t.merge(u);
}
@SuppressWarnings("unchecked")
@Override
public Crdt apply(Crdt t, Crdt u) {
if (t == null && u == null){
if (t == null && u == null) {
return null;
} else if (t == null){
} else if (t == null) {
return u;
} else if (u == null){
} else if (u == null) {
return t;
}
if (! u.getClass().equals(t.getClass())){
throw new IllegalArgumentException( "Can not merge " + t.getClass() + " "+ u.getClass());
}
return t.merge(u);
}
@SuppressWarnings("unchecked")
public static Crdt applyStatic(Crdt t, Crdt u){
if (t == null && u == null){
return null;
} else if (t == null){
return u;
} else if (u == null){
return t;
}
if (! u.getClass().equals(t.getClass())){
throw new IllegalArgumentException( "Can not merge " + t.getClass() + " "+ u.getClass());
if (!u.getClass().equals(t.getClass())) {
throw new IllegalArgumentException("Can not merge " + t.getClass() + " " + u.getClass());
}
return t.merge(u);
}

5
gossip-base/src/main/java/org/apache/gossip/crdt/CrdtCounter.java
View File

@ -18,7 +18,4 @@
package org.apache.gossip.crdt;
public interface CrdtCounter<ValueType extends Number, R extends CrdtCounter<ValueType, R>>
extends Crdt<ValueType, R> {
}
extends Crdt<ValueType, R> {}

9
gossip-base/src/main/java/org/apache/gossip/crdt/CrdtModule.java
View File

@ -23,6 +23,10 @@ import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.core.Version;
import com.fasterxml.jackson.databind.module.SimpleModule;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import org.apache.gossip.LocalMember;
import org.apache.gossip.lock.vote.MajorityVote;
import org.apache.gossip.lock.vote.Vote;
@ -31,11 +35,6 @@ import org.apache.gossip.replication.BlackListReplicable;
import org.apache.gossip.replication.Replicable;
import org.apache.gossip.replication.WhiteListReplicable;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
abstract class OrSetMixin<E> {
@JsonCreator
OrSetMixin(@JsonProperty("elements") Map<E, Set<UUID>> w, @JsonProperty("tombstones") Map<E, Set<UUID>> h) { }

8
gossip-base/src/main/java/org/apache/gossip/crdt/CrdtSet.java
View File

@ -19,8 +19,6 @@ package org.apache.gossip.crdt;
import java.util.Set;
public interface CrdtSet<ElementType, SetType extends Set<ElementType>, R extends CrdtSet<ElementType, SetType, R>>
extends Crdt<SetType, R> {
}
public interface CrdtSet<
ElementType, SetType extends Set<ElementType>, R extends CrdtSet<ElementType, SetType, R>>
extends Crdt<SetType, R> {}

3
gossip-base/src/main/java/org/apache/gossip/crdt/GrowOnlyCounter.java
View File

@ -18,10 +18,9 @@
package org.apache.gossip.crdt;
import org.apache.gossip.manager.GossipManager;
import java.util.HashMap;
import java.util.Map;
import org.apache.gossip.manager.GossipManager;
public class GrowOnlyCounter implements CrdtCounter<Long, GrowOnlyCounter> {

30
gossip-base/src/main/java/org/apache/gossip/crdt/GrowOnlySet.java
View File

@ -24,7 +24,8 @@ import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.Set;
public class GrowOnlySet<ElementType> implements CrdtSet<ElementType, Set<ElementType>, GrowOnlySet<ElementType>>{
public class GrowOnlySet<ElementType>
implements CrdtSet<ElementType, Set<ElementType>, GrowOnlySet<ElementType>> {
private final Set<ElementType> hidden = new LinkedHashSet<>();
@ -32,19 +33,17 @@ public class GrowOnlySet<ElementType> implements CrdtSet<ElementType, Set<Elemen
/*
* Used by SerDe
*/
private GrowOnlySet(){
private GrowOnlySet() {}
}
public GrowOnlySet(Set<ElementType> c){
public GrowOnlySet(Set<ElementType> c) {
hidden.addAll(c);
}
public GrowOnlySet(Collection<ElementType> c){
public GrowOnlySet(Collection<ElementType> c) {
hidden.addAll(c);
}
public GrowOnlySet(GrowOnlySet<ElementType> first, GrowOnlySet<ElementType> second){
public GrowOnlySet(GrowOnlySet<ElementType> first, GrowOnlySet<ElementType> second) {
hidden.addAll(first.value());
hidden.addAll(second.value());
}
@ -135,23 +134,18 @@ public class GrowOnlySet<ElementType> implements CrdtSet<ElementType, Set<Elemen
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
if (this == obj) return true;
if (obj == null) return false;
if (getClass() != obj.getClass()) return false;
@SuppressWarnings("rawtypes")
GrowOnlySet other = (GrowOnlySet) obj;
if (hidden == null) {
if (other.hidden != null)
return false;
} else if (!hidden.equals(other.hidden))
return false;
if (other.hidden != null) return false;
} else if (!hidden.equals(other.hidden)) return false;
return true;
}
Set<ElementType> getElements(){
Set<ElementType> getElements() {
return hidden;
}
}

158
gossip-base/src/main/java/org/apache/gossip/crdt/LwwSet.java
View File

@ -17,9 +17,6 @@
*/
package org.apache.gossip.crdt;
import org.apache.gossip.manager.Clock;
import org.apache.gossip.manager.SystemClock;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
@ -28,6 +25,8 @@ import java.util.Set;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.apache.gossip.manager.Clock;
import org.apache.gossip.manager.SystemClock;
/*
Last write wins CrdtSet
@ -49,6 +48,82 @@ public class LwwSet<ElementType> implements CrdtAddRemoveSet<ElementType, Set<El
private final Map<ElementType, Timestamps> struct;
public LwwSet(){
struct = new HashMap<>();
}
@SafeVarargs
public LwwSet(ElementType... elements){
this(new HashSet<>(Arrays.asList(elements)));
}
public LwwSet(Set<ElementType> set){
struct = new HashMap<>();
for (ElementType e : set){
struct.put(e, new Timestamps().updateAdd());
}
}
public LwwSet(LwwSet<ElementType> first, LwwSet<ElementType> second){
Function<ElementType, Timestamps> timestampsFor = p -> {
Timestamps firstTs = first.struct.get(p);
Timestamps secondTs = second.struct.get(p);
if (firstTs == null){
return secondTs;
}
return firstTs.merge(secondTs);
};
struct = Stream.concat(first.struct.keySet().stream(), second.struct.keySet().stream())
.distinct().collect(Collectors.toMap(p -> p, timestampsFor));
}
// for serialization
LwwSet(Map<ElementType, Timestamps> struct){
this.struct = struct;
}
public LwwSet<ElementType> add(ElementType e){
return this.merge(new LwwSet<>(e));
}
Map<ElementType, Timestamps> getStruct(){
return struct;
}
public LwwSet<ElementType> remove(ElementType e){
Timestamps eTimestamps = struct.get(e);
if (eTimestamps == null || !eTimestamps.isPresent()){
return this;
}
Map<ElementType, Timestamps> changeMap = new HashMap<>();
changeMap.put(e, eTimestamps.updateRemove());
return this.merge(new LwwSet<>(changeMap));
}
@Override
public LwwSet<ElementType> merge(LwwSet<ElementType> other){
return new LwwSet<>(this, other);
}
@Override
public Set<ElementType> value(){
return struct.entrySet().stream()
.filter(entry -> entry.getValue().isPresent())
.map(Map.Entry::getKey)
.collect(Collectors.toSet());
}
@Override
public LwwSet<ElementType> optimize(){
return this;
}
@Override
public boolean equals(Object obj){
return this == obj || (obj != null && getClass() == obj.getClass() && value().equals(((LwwSet) obj).value()));
}
static class Timestamps {
private final long latestAdd;
private final long latestRemove;
@ -91,81 +166,4 @@ public class LwwSet<ElementType> implements CrdtAddRemoveSet<ElementType, Set<El
return new Timestamps(Math.max(latestAdd, other.latestAdd), Math.max(latestRemove, other.latestRemove));
}
}
public LwwSet(){
struct = new HashMap<>();
}
@SafeVarargs
public LwwSet(ElementType... elements){
this(new HashSet<>(Arrays.asList(elements)));
}
public LwwSet(Set<ElementType> set){
struct = new HashMap<>();
for (ElementType e : set){
struct.put(e, new Timestamps().updateAdd());
}
}
public LwwSet(LwwSet<ElementType> first, LwwSet<ElementType> second){
Function<ElementType, Timestamps> timestampsFor = p -> {
Timestamps firstTs = first.struct.get(p);
Timestamps secondTs = second.struct.get(p);
if (firstTs == null){
return secondTs;
}
return firstTs.merge(secondTs);
};
struct = Stream.concat(first.struct.keySet().stream(), second.struct.keySet().stream())
.distinct().collect(Collectors.toMap(p -> p, timestampsFor));
}
public LwwSet<ElementType> add(ElementType e){
return this.merge(new LwwSet<>(e));
}
// for serialization
LwwSet(Map<ElementType, Timestamps> struct){
this.struct = struct;
}
Map<ElementType, Timestamps> getStruct(){
return struct;
}
public LwwSet<ElementType> remove(ElementType e){
Timestamps eTimestamps = struct.get(e);
if (eTimestamps == null || !eTimestamps.isPresent()){
return this;
}
Map<ElementType, Timestamps> changeMap = new HashMap<>();
changeMap.put(e, eTimestamps.updateRemove());
return this.merge(new LwwSet<>(changeMap));
}
@Override
public LwwSet<ElementType> merge(LwwSet<ElementType> other){
return new LwwSet<>(this, other);
}
@Override
public Set<ElementType> value(){
return struct.entrySet().stream()
.filter(entry -> entry.getValue().isPresent())
.map(Map.Entry::getKey)
.collect(Collectors.toSet());
}
@Override
public LwwSet<ElementType> optimize(){
return this;
}
@Override
public boolean equals(Object obj){
return this == obj || (obj != null && getClass() == obj.getClass() && value().equals(((LwwSet) obj).value()));
}
}

51
gossip-base/src/main/java/org/apache/gossip/crdt/MaxChangeSet.java
View File

@ -37,68 +37,72 @@ import java.util.stream.Stream;
DataTest - integration test with 2 nodes, MaxChangeSet was serialized/deserialized, sent between nodes, merged
*/
public class MaxChangeSet<ElementType> implements CrdtAddRemoveSet<ElementType, Set<ElementType>, MaxChangeSet<ElementType>> {
public class MaxChangeSet<ElementType>
implements CrdtAddRemoveSet<ElementType, Set<ElementType>, MaxChangeSet<ElementType>> {
private final Map<ElementType, Integer> struct;
public MaxChangeSet(){
public MaxChangeSet() {
struct = new HashMap<>();
}
@SafeVarargs
public MaxChangeSet(ElementType... elements){
public MaxChangeSet(ElementType... elements) {
this(new HashSet<>(Arrays.asList(elements)));
}
public MaxChangeSet(Set<ElementType> set){
public MaxChangeSet(Set<ElementType> set) {
struct = new HashMap<>();
for (ElementType e : set){
for (ElementType e : set) {
struct.put(e, 1);
}
}
public MaxChangeSet(MaxChangeSet<ElementType> first, MaxChangeSet<ElementType> second){
Function<ElementType, Integer> valueFor = element ->
Math.max(first.struct.getOrDefault(element, 0), second.struct.getOrDefault(element, 0));
struct = Stream.concat(first.struct.keySet().stream(), second.struct.keySet().stream())
.distinct().collect(Collectors.toMap(p -> p, valueFor));
public MaxChangeSet(MaxChangeSet<ElementType> first, MaxChangeSet<ElementType> second) {
Function<ElementType, Integer> valueFor =
element ->
Math.max(first.struct.getOrDefault(element, 0), second.struct.getOrDefault(element, 0));
struct =
Stream.concat(first.struct.keySet().stream(), second.struct.keySet().stream())
.distinct()
.collect(Collectors.toMap(p -> p, valueFor));
}
// for serialization
MaxChangeSet(Map<ElementType, Integer> struct){
MaxChangeSet(Map<ElementType, Integer> struct) {
this.struct = struct;
}
Map<ElementType, Integer> getStruct(){
Map<ElementType, Integer> getStruct() {
return struct;
}
private MaxChangeSet<ElementType> increment(ElementType e){
private MaxChangeSet<ElementType> increment(ElementType e) {
Map<ElementType, Integer> changeMap = new HashMap<>();
changeMap.put(e, struct.getOrDefault(e, 0) + 1);
return this.merge(new MaxChangeSet<>(changeMap));
}
public MaxChangeSet<ElementType> add(ElementType e){
if (struct.getOrDefault(e, 0) % 2 == 1){
public MaxChangeSet<ElementType> add(ElementType e) {
if (struct.getOrDefault(e, 0) % 2 == 1) {
return this;
}
return increment(e);
}
public MaxChangeSet<ElementType> remove(ElementType e){
if (struct.getOrDefault(e, 0) % 2 == 0){
public MaxChangeSet<ElementType> remove(ElementType e) {
if (struct.getOrDefault(e, 0) % 2 == 0) {
return this;
}
return increment(e);
}
@Override
public MaxChangeSet<ElementType> merge(MaxChangeSet<ElementType> other){
public MaxChangeSet<ElementType> merge(MaxChangeSet<ElementType> other) {
return new MaxChangeSet<>(this, other);
}
@Override
public Set<ElementType> value(){
public Set<ElementType> value() {
return struct.entrySet().stream()
.filter(entry -> (entry.getValue() % 2 == 1))
.map(Map.Entry::getKey)
@ -106,12 +110,15 @@ public class MaxChangeSet<ElementType> implements CrdtAddRemoveSet<ElementType,
}
@Override
public MaxChangeSet<ElementType> optimize(){
public MaxChangeSet<ElementType> optimize() {
return this;
}
@Override
public boolean equals(Object obj){
return this == obj || (obj != null && getClass() == obj.getClass() && value().equals(((MaxChangeSet) obj).value()));
public boolean equals(Object obj) {
return this == obj
|| (obj != null
&& getClass() == obj.getClass()
&& value().equals(((MaxChangeSet) obj).value()));
}
}

101
gossip-base/src/main/java/org/apache/gossip/crdt/OrSet.java
View File

@ -20,7 +20,6 @@ package org.apache.gossip.crdt;
import java.util.*;
import java.util.Map.Entry;
import java.util.function.BiConsumer;
import org.apache.gossip.crdt.OrSet.Builder.Operation;
/*
@ -83,6 +82,21 @@ public class OrSet<E> implements CrdtAddRemoveSet<E, Set<E>, OrSet<E>> {
val = computeValue();
}
public OrSet(OrSet<E> left, OrSet<E> right){
BiConsumer<Map<E, Set<UUID>>, Map<E, Set<UUID>>> internalMerge = (items, other) -> {
for (Entry<E, Set<UUID>> l : other.entrySet()){
internalSetMerge(items, l.getKey(), l.getValue());
}
};
internalMerge.accept(elements, left.elements);
internalMerge.accept(elements, right.elements);
internalMerge.accept(tombstones, left.tombstones);
internalMerge.accept(tombstones, right.tombstones);
val = computeValue();
}
static Set<UUID> mergeSets(Set<UUID> a, Set<UUID> b) {
if ((a == null || a.isEmpty()) && (b == null || b.isEmpty())) {
return null;
@ -99,21 +113,6 @@ public class OrSet<E> implements CrdtAddRemoveSet<E, Set<E>, OrSet<E>> {
map.merge(key, value, OrSet::mergeSets);
}
public OrSet(OrSet<E> left, OrSet<E> right){
BiConsumer<Map<E, Set<UUID>>, Map<E, Set<UUID>>> internalMerge = (items, other) -> {
for (Entry<E, Set<UUID>> l : other.entrySet()){
internalSetMerge(items, l.getKey(), l.getValue());
}
};
internalMerge.accept(elements, left.elements);
internalMerge.accept(elements, right.elements);
internalMerge.accept(tombstones, left.tombstones);
internalMerge.accept(tombstones, right.tombstones);
val = computeValue();
}
public OrSet<E> add(E e) {
return this.merge(new OrSet<>(e));
}
@ -166,55 +165,18 @@ public class OrSet<E> implements CrdtAddRemoveSet<E, Set<E>, OrSet<E>> {
return this;
}
public static class Builder<E> {
public static enum Operation {
ADD, REMOVE
};
private class OrSetElement<EL> {
EL element;
Operation operation;
private OrSetElement(EL element, Operation operation) {
this.element = element;
this.operation = operation;
}
}
private List<OrSetElement<E>> elements = new ArrayList<>();
public Builder<E> add(E element) {
elements.add(new OrSetElement<E>(element, Operation.ADD));
return this;
}
public Builder<E> remove(E element) {
elements.add(new OrSetElement<E>(element, Operation.REMOVE));
return this;
}
public Builder<E> mutate(E element, Operation operation) {
elements.add(new OrSetElement<E>(element, operation));
return this;
}
}
public int size() {
return value().size();
}
public boolean isEmpty() {
return value().size() == 0;
}
public boolean contains(Object o) {
return value().contains(o);
}
public Iterator<E> iterator() {
Iterator<E> managed = value().iterator();
return new Iterator<E>() {
@ -304,4 +266,37 @@ public class OrSet<E> implements CrdtAddRemoveSet<E, Set<E>, OrSet<E>> {
return tombstones;
}
public static class Builder<E> {
private List<OrSetElement<E>> elements = new ArrayList<>();;
public Builder<E> add(E element) {
elements.add(new OrSetElement<E>(element, Operation.ADD));
return this;
}
public Builder<E> remove(E element) {
elements.add(new OrSetElement<E>(element, Operation.REMOVE));
return this;
}
public Builder<E> mutate(E element, Operation operation) {
elements.add(new OrSetElement<E>(element, operation));
return this;
}
public static enum Operation {
ADD, REMOVE
}
private class OrSetElement<EL> {
EL element;
Operation operation;
private OrSetElement(EL element, Operation operation) {
this.element = element;
this.operation = operation;
}
}
}
}

1
gossip-base/src/main/java/org/apache/gossip/crdt/PNCounter.java
View File

@ -18,7 +18,6 @@
package org.apache.gossip.crdt;
import java.util.Map;
import org.apache.gossip.manager.GossipManager;
public class PNCounter implements CrdtCounter<Long, PNCounter> {

44
gossip-base/src/main/java/org/apache/gossip/crdt/TwoPhaseSet.java
View File

@ -36,57 +36,58 @@ import java.util.stream.Stream;
DataTest - integration test with 2 nodes, TwoPhaseSet was serialized/deserialized, sent between nodes, merged
*/
public class TwoPhaseSet<ElementType> implements CrdtAddRemoveSet<ElementType, Set<ElementType>, TwoPhaseSet<ElementType>> {
public class TwoPhaseSet<ElementType>
implements CrdtAddRemoveSet<ElementType, Set<ElementType>, TwoPhaseSet<ElementType>> {
private final Set<ElementType> added;
private final Set<ElementType> removed;
public TwoPhaseSet(){
public TwoPhaseSet() {
added = new HashSet<>();
removed = new HashSet<>();
}
@SafeVarargs
public TwoPhaseSet(ElementType... elements){
public TwoPhaseSet(ElementType... elements) {
this(new HashSet<>(Arrays.asList(elements)));
}
public TwoPhaseSet(Set<ElementType> set){
public TwoPhaseSet(Set<ElementType> set) {
this();
for (ElementType e : set){
for (ElementType e : set) {
added.add(e);
}
}
public TwoPhaseSet(TwoPhaseSet<ElementType> first, TwoPhaseSet<ElementType> second){
BiFunction<Set<ElementType>, Set<ElementType>, Set<ElementType>> mergeSets = (f, s) ->
Stream.concat(f.stream(), s.stream()).collect(Collectors.toSet());
public TwoPhaseSet(TwoPhaseSet<ElementType> first, TwoPhaseSet<ElementType> second) {
BiFunction<Set<ElementType>, Set<ElementType>, Set<ElementType>> mergeSets =
(f, s) -> Stream.concat(f.stream(), s.stream()).collect(Collectors.toSet());
added = mergeSets.apply(first.added, second.added);
removed = mergeSets.apply(first.removed, second.removed);
}
TwoPhaseSet(Set<ElementType> added, Set<ElementType> removed){
TwoPhaseSet(Set<ElementType> added, Set<ElementType> removed) {
this.added = added;
this.removed = removed;
}
Set<ElementType> getAdded(){
Set<ElementType> getAdded() {
return added;
}
Set<ElementType> getRemoved(){
Set<ElementType> getRemoved() {
return removed;
}
public TwoPhaseSet<ElementType> add(ElementType e){
if (removed.contains(e) || added.contains(e)){
public TwoPhaseSet<ElementType> add(ElementType e) {
if (removed.contains(e) || added.contains(e)) {
return this;
}
return this.merge(new TwoPhaseSet<>(e));
}
public TwoPhaseSet<ElementType> remove(ElementType e){
if (removed.contains(e) || !added.contains(e)){
public TwoPhaseSet<ElementType> remove(ElementType e) {
if (removed.contains(e) || !added.contains(e)) {
return this;
}
Set<ElementType> eSet = new HashSet<>(Collections.singletonList(e));
@ -94,22 +95,25 @@ public class TwoPhaseSet<ElementType> implements CrdtAddRemoveSet<ElementType, S
}
@Override
public TwoPhaseSet<ElementType> merge(TwoPhaseSet<ElementType> other){
public TwoPhaseSet<ElementType> merge(TwoPhaseSet<ElementType> other) {
return new TwoPhaseSet<>(this, other);
}
@Override
public Set<ElementType> value(){
public Set<ElementType> value() {
return added.stream().filter(e -> !removed.contains(e)).collect(Collectors.toSet());
}
@Override
public TwoPhaseSet<ElementType> optimize(){
public TwoPhaseSet<ElementType> optimize() {
return new TwoPhaseSet<>(value(), removed);
}
@Override
public boolean equals(Object obj){
return this == obj || (obj != null && getClass() == obj.getClass() && value().equals(((TwoPhaseSet) obj).value()));
public boolean equals(Object obj) {
return this == obj
|| (obj != null
&& getClass() == obj.getClass()
&& value().equals(((TwoPhaseSet) obj).value()));
}
}

4
gossip-base/src/main/java/org/apache/gossip/event/GossipState.java
View File

@ -18,7 +18,9 @@
package org.apache.gossip.event;
public enum GossipState {
UP("up"), DOWN("down");
UP("up"),
DOWN("down");
@SuppressWarnings("unused")
private final String state;

17
gossip-base/src/main/java/org/apache/gossip/event/data/DataEventConstants.java
View File

@ -20,14 +20,14 @@ package org.apache.gossip.event.data;
public class DataEventConstants {
// MetricRegistry
public static final String PER_NODE_DATA_SUBSCRIBERS_SIZE
= "gossip.event.data.pernode.subscribers.size";
public static final String PER_NODE_DATA_SUBSCRIBERS_QUEUE_SIZE
= "gossip.event.data.pernode.subscribers.queue.size";
public static final String SHARED_DATA_SUBSCRIBERS_SIZE
= "gossip.event.data.shared.subscribers.size";
public static final String SHARED_DATA_SUBSCRIBERS_QUEUE_SIZE
= "gossip.event.data.shared.subscribers.queue.size";
public static final String PER_NODE_DATA_SUBSCRIBERS_SIZE =
"gossip.event.data.pernode.subscribers.size";
public static final String PER_NODE_DATA_SUBSCRIBERS_QUEUE_SIZE =
"gossip.event.data.pernode.subscribers.queue.size";
public static final String SHARED_DATA_SUBSCRIBERS_SIZE =
"gossip.event.data.shared.subscribers.size";
public static final String SHARED_DATA_SUBSCRIBERS_QUEUE_SIZE =
"gossip.event.data.shared.subscribers.queue.size";
// Thread pool
public static final int PER_NODE_DATA_QUEUE_SIZE = 64;
@ -38,5 +38,4 @@ public class DataEventConstants {
public static final int SHARED_DATA_CORE_POOL_SIZE = 1;
public static final int SHARED_DATA_MAX_POOL_SIZE = 30;
public static final int SHARED_DATA_KEEP_ALIVE_TIME_SECONDS = 1;
}

56
gossip-base/src/main/java/org/apache/gossip/event/data/DataEventManager.java
View File

@ -40,39 +40,52 @@ public class DataEventManager {
public DataEventManager(MetricRegistry metrics) {
perNodeDataHandlers = new CopyOnWriteArrayList<>();
perNodeDataHandlerQueue = new ArrayBlockingQueue<>(DataEventConstants.PER_NODE_DATA_QUEUE_SIZE);
perNodeDataEventExecutor = new ThreadPoolExecutor(
perNodeDataEventExecutor =
new ThreadPoolExecutor(
DataEventConstants.PER_NODE_DATA_CORE_POOL_SIZE,
DataEventConstants.PER_NODE_DATA_MAX_POOL_SIZE,
DataEventConstants.PER_NODE_DATA_KEEP_ALIVE_TIME_SECONDS, TimeUnit.SECONDS,
perNodeDataHandlerQueue, new ThreadPoolExecutor.DiscardOldestPolicy());
DataEventConstants.PER_NODE_DATA_KEEP_ALIVE_TIME_SECONDS,
TimeUnit.SECONDS,
perNodeDataHandlerQueue,
new ThreadPoolExecutor.DiscardOldestPolicy());
sharedDataHandlers = new CopyOnWriteArrayList<>();
sharedDataHandlerQueue = new ArrayBlockingQueue<>(DataEventConstants.SHARED_DATA_QUEUE_SIZE);
sharedDataEventExecutor = new ThreadPoolExecutor(DataEventConstants.SHARED_DATA_CORE_POOL_SIZE,
sharedDataEventExecutor =
new ThreadPoolExecutor(
DataEventConstants.SHARED_DATA_CORE_POOL_SIZE,
DataEventConstants.SHARED_DATA_MAX_POOL_SIZE,
DataEventConstants.SHARED_DATA_KEEP_ALIVE_TIME_SECONDS, TimeUnit.SECONDS,
sharedDataHandlerQueue, new ThreadPoolExecutor.DiscardOldestPolicy());
metrics.register(DataEventConstants.PER_NODE_DATA_SUBSCRIBERS_SIZE,
(Gauge<Integer>) () -> perNodeDataHandlers.size());
metrics.register(DataEventConstants.PER_NODE_DATA_SUBSCRIBERS_QUEUE_SIZE,
(Gauge<Integer>) () -> perNodeDataHandlerQueue.size());
metrics.register(DataEventConstants.SHARED_DATA_SUBSCRIBERS_SIZE,
(Gauge<Integer>) () -> sharedDataHandlers.size());
metrics.register(DataEventConstants.SHARED_DATA_SUBSCRIBERS_QUEUE_SIZE,
(Gauge<Integer>) () -> sharedDataHandlerQueue.size());
DataEventConstants.SHARED_DATA_KEEP_ALIVE_TIME_SECONDS,
TimeUnit.SECONDS,
sharedDataHandlerQueue,
new ThreadPoolExecutor.DiscardOldestPolicy());
metrics.register(
DataEventConstants.PER_NODE_DATA_SUBSCRIBERS_SIZE,
(Gauge<Integer>) () -> perNodeDataHandlers.size());
metrics.register(
DataEventConstants.PER_NODE_DATA_SUBSCRIBERS_QUEUE_SIZE,
(Gauge<Integer>) () -> perNodeDataHandlerQueue.size());
metrics.register(
DataEventConstants.SHARED_DATA_SUBSCRIBERS_SIZE,
(Gauge<Integer>) () -> sharedDataHandlers.size());
metrics.register(
DataEventConstants.SHARED_DATA_SUBSCRIBERS_QUEUE_SIZE,
(Gauge<Integer>) () -> sharedDataHandlerQueue.size());
}
public void notifySharedData(final String key, final Object newValue, final Object oldValue) {
sharedDataHandlers.forEach(handler -> sharedDataEventExecutor
.execute(() -> handler.onUpdate(key, oldValue, newValue)));
sharedDataHandlers.forEach(
handler ->
sharedDataEventExecutor.execute(() -> handler.onUpdate(key, oldValue, newValue)));
}
public void notifyPerNodeData(final String nodeId, final String key, final Object newValue,
final Object oldValue) {
perNodeDataHandlers.forEach(handler -> perNodeDataEventExecutor
.execute(() -> handler.onUpdate(nodeId, key, oldValue, newValue)));
public void notifyPerNodeData(
final String nodeId, final String key, final Object newValue, final Object oldValue) {
perNodeDataHandlers.forEach(
handler ->
perNodeDataEventExecutor.execute(
() -> handler.onUpdate(nodeId, key, oldValue, newValue)));
}
public void registerPerNodeDataSubscriber(UpdateNodeDataEventHandler handler) {
@ -98,5 +111,4 @@ public class DataEventManager {
public int getSharedDataSubscribersSize() {
return sharedDataHandlers.size();
}
}

13
gossip-base/src/main/java/org/apache/gossip/event/data/UpdateNodeDataEventHandler.java
View File

@ -18,20 +18,19 @@
package org.apache.gossip.event.data;
/**
* Event handler interface for the per node data items.
* Classes which implement this interface get notifications when per node data item get changed.
* Event handler interface for the per node data items. Classes which implement this interface get
* notifications when per node data item get changed.
*/
public interface UpdateNodeDataEventHandler {
/**
* This method get called when a per node datum get changed.
*
* @param nodeId id of the node that change the value
* @param key key of the datum
* @param oldValue previous value of the datum or null if the datum is discovered
* for the first time
* @param nodeId id of the node that change the value
* @param key key of the datum
* @param oldValue previous value of the datum or null if the datum is discovered for the first
* time
* @param newValue updated value of the datum
*/
void onUpdate(String nodeId, String key, Object oldValue, Object newValue);
}

7
gossip-base/src/main/java/org/apache/gossip/event/data/UpdateSharedDataEventHandler.java
View File

@ -18,17 +18,16 @@
package org.apache.gossip.event.data;
/**
* Event handler interface for shared data items.
* Classes which implement this interface get notifications when shared data get changed.
* Event handler interface for shared data items. Classes which implement this interface get
* notifications when shared data get changed.
*/
public interface UpdateSharedDataEventHandler {
/**
* This method get called when shared data get changed.
*
* @param key key of the shared data item
* @param key key of the shared data item
* @param oldValue previous value or null if the data is discovered for the first time
* @param newValue updated value of the data item
*/
void onUpdate(String key, Object oldValue, Object newValue);
}

37
gossip-base/src/main/java/org/apache/gossip/lock/LockManager.java
View File

@ -20,15 +20,6 @@ package org.apache.gossip.lock;
import com.codahale.metrics.Gauge;
import com.codahale.metrics.MetricRegistry;
import com.codahale.metrics.Timer;
import org.apache.gossip.Member;
import org.apache.gossip.lock.exceptions.VoteFailedException;
import org.apache.gossip.lock.vote.MajorityVote;
import org.apache.gossip.lock.vote.Vote;
import org.apache.gossip.lock.vote.VoteCandidate;
import org.apache.gossip.manager.GossipManager;
import org.apache.gossip.model.SharedDataMessage;
import org.apache.log4j.Logger;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
@ -43,19 +34,27 @@ import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.stream.Collectors;
import lombok.extern.slf4j.Slf4j;
import org.apache.gossip.Member;
import org.apache.gossip.lock.exceptions.VoteFailedException;
import org.apache.gossip.lock.vote.MajorityVote;
import org.apache.gossip.lock.vote.Vote;
import org.apache.gossip.lock.vote.VoteCandidate;
import org.apache.gossip.manager.GossipManager;
import org.apache.gossip.model.SharedDataMessage;
@Slf4j
public class LockManager {
public static final Logger LOGGER = Logger.getLogger(LockManager.class);
// For MetricRegistry
public static final String LOCK_KEY_SET_SIZE = "gossip.lock.key_set_size";
public static final String LOCK_TIME = "gossip.lock.time";
private final GossipManager gossipManager;
private final LockManagerSettings lockSettings;
private final ScheduledExecutorService voteService;
private final AtomicInteger numberOfNodes;
private final Set<String> lockKeys;
// For MetricRegistry
public static final String LOCK_KEY_SET_SIZE = "gossip.lock.key_set_size";
public static final String LOCK_TIME = "gossip.lock.time";
private final Timer lockTimeMetric;
public LockManager(GossipManager gossipManager, final LockManagerSettings lockManagerSettings,
@ -95,20 +94,16 @@ public class LockManager {
long passedCandidates = voteResultMap.values().stream().filter(aBoolean -> aBoolean).count();
String myNodeId = gossipManager.getMyself().getId();
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("NodeId=" + myNodeId + ", VoteMap=" + voteResultMap + ", WinnerCount="
log.debug("NodeId=" + myNodeId + ", VoteMap=" + voteResultMap + ", WinnerCount="
+ passedCandidates);
}
// Check for possible dead lock when no candidates were won
if (passedCandidates == 0) {
if (isDeadLock(voteCandidatesMap)) {
deadlockDetectCount++;
// Testing for deadlock is not always correct, therefore test for continues deadlocks
if (deadlockDetectCount >= lockSettings.getDeadlockDetectionThreshold()) {
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("Deadlock detected from node " + myNodeId + ". VoteCandidatesMap="
log.debug("Deadlock detected from node " + myNodeId + ". VoteCandidatesMap="
+ voteCandidatesMap);
}
preventDeadLock(voteCandidatesMap);
}
} else {
@ -251,9 +246,7 @@ public class LockManager {
}
}
}
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("Node " + myNodeId + " give up votes to node " + selectedCandidateId);
}
log.debug("Node " + myNodeId + " give up votes to node " + selectedCandidateId);
}
private String getVotedCandidateNodeId(String nodeId,

32
gossip-base/src/main/java/org/apache/gossip/lock/LockManagerSettings.java
View File

@ -20,9 +20,7 @@ package org.apache.gossip.lock;
import org.apache.gossip.lock.vote.RandomVoteSelector;
import org.apache.gossip.lock.vote.VoteSelector;
/**
* Stores the lock manager related settings.
*/
/** Stores the lock manager related settings. */
public class LockManagerSettings {
// Time between vote updates in ms. Default is 1 second.
private final int voteUpdateInterval;
@ -35,30 +33,32 @@ public class LockManagerSettings {
// Wait time between vote result calculation. Default is 1000
private final int resultCalculationDelay;
/**
* Construct LockManagerSettings with default settings.
*/
public static LockManagerSettings getLockManagerDefaultSettings() {
return new LockManagerSettings(1000, new RandomVoteSelector(), -1, 3, 1000);
}
/**
* Construct a custom LockManagerSettings
*
* @param voteUpdateInterval Time between vote updates in milliseconds.
* @param voteSelector Vote selection algorithm. Cannot be null
* @param numberOfNodes Number of nodes available for voting. Set to negative value for auto calculate
* @param voteUpdateInterval Time between vote updates in milliseconds.
* @param voteSelector Vote selection algorithm. Cannot be null
* @param numberOfNodes Number of nodes available for voting. Set to negative value for auto
* calculate
* @param deadlockDetectionThreshold Number of times to test for deadlock before preventing
* @param resultCalculationDelay Wait time between vote result calculation
* @param resultCalculationDelay Wait time between vote result calculation
*/
public LockManagerSettings(int voteUpdateInterval, VoteSelector voteSelector, int numberOfNodes,
int deadlockDetectionThreshold, int resultCalculationDelay) {
public LockManagerSettings(
int voteUpdateInterval,
VoteSelector voteSelector,
int numberOfNodes,
int deadlockDetectionThreshold,
int resultCalculationDelay) {
this.voteUpdateInterval = voteUpdateInterval;
this.voteSelector = voteSelector;
this.numberOfNodes = numberOfNodes;
this.deadlockDetectionThreshold = deadlockDetectionThreshold;
this.resultCalculationDelay = resultCalculationDelay;
}
/** Construct LockManagerSettings with default settings. */
public static LockManagerSettings getLockManagerDefaultSettings() {
return new LockManagerSettings(1000, new RandomVoteSelector(), -1, 3, 1000);
}
public int getVoteUpdateInterval() {

9
gossip-base/src/main/java/org/apache/gossip/lock/exceptions/VoteFailedException.java
View File

@ -17,9 +17,7 @@
*/
package org.apache.gossip.lock.exceptions;
/**
* This exception is thrown when the lock based voting is failed.
*/
/** This exception is thrown when the lock based voting is failed. */
public class VoteFailedException extends Exception {
/**
* Constructs a new VoteFailedException with the specified detail message.
@ -31,11 +29,10 @@ public class VoteFailedException extends Exception {
}
/**
* Constructs a new VoteFailedException with the specified detail message and
* cause.
* Constructs a new VoteFailedException with the specified detail message and cause.
*
* @param message the detail message
* @param cause the cause for this exception
* @param cause the cause for this exception
*/
public VoteFailedException(String message, Throwable cause) {
super(message, cause);

3
gossip-base/src/main/java/org/apache/gossip/lock/vote/MajorityVote.java
View File

@ -17,14 +17,13 @@
*/
package org.apache.gossip.lock.vote;
import org.apache.gossip.crdt.Crdt;
import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.gossip.crdt.Crdt;
/**
* CRDT which used for distribute a votes for a given key.

4
gossip-base/src/main/java/org/apache/gossip/lock/vote/RandomVoteSelector.java
View File

@ -22,9 +22,7 @@ import java.util.List;
import java.util.Random;
import java.util.Set;
/**
* VoteSelector implementation which randomly select a voting node.
*/
/** VoteSelector implementation which randomly select a voting node. */
public class RandomVoteSelector implements VoteSelector {
@Override

2
gossip-base/src/main/java/org/apache/gossip/lock/vote/Vote.java
View File

@ -25,9 +25,9 @@ import java.util.List;
public class Vote {
private final String votingNode;
private final Boolean voteValue; // TODO: 7/16/17 weight?
private Boolean voteExchange;
private final List<String> liveMembers;
private final List<String> deadMembers;
private Boolean voteExchange;
public Vote(String votingNode, Boolean voteValue, Boolean voteExchange, List<String> liveMembers,
List<String> deadMembers) {

14
gossip-base/src/main/java/org/apache/gossip/lock/vote/VoteCandidate.java
View File

@ -20,9 +20,7 @@ package org.apache.gossip.lock.vote;
import java.util.Map;
import java.util.Objects;
/**
* Stores the vote candidate details and its votes.
*/
/** Stores the vote candidate details and its votes. */
public class VoteCandidate {
private final String candidateNodeId;
@ -59,13 +57,11 @@ public class VoteCandidate {
@Override
public boolean equals(Object obj) {
if (!(obj instanceof VoteCandidate))
return false;
if (obj == this)
return true;
if (!(obj instanceof VoteCandidate)) return false;
if (obj == this) return true;
VoteCandidate other = (VoteCandidate) obj;
return this.candidateNodeId.equals(other.candidateNodeId) && this.votingKey
.equals(other.votingKey);
return this.candidateNodeId.equals(other.candidateNodeId)
&& this.votingKey.equals(other.votingKey);
}
@Override

7
gossip-base/src/main/java/org/apache/gossip/lock/vote/VoteSelector.java
View File

@ -19,12 +19,11 @@ package org.apache.gossip.lock.vote;
import java.util.Set;
/**
* This interface defines vote selection algorithm for the vote based locking.
*/
/** This interface defines vote selection algorithm for the vote based locking. */
public interface VoteSelector {
/**
* This method get call by the lock manager of a node to decide which candidate need to be choose for voting.
* This method get call by the lock manager of a node to decide which candidate need to be choose
* for voting.
*
* @param voteCandidateIds node id set for the vote candidates
* @return selected node id to vote from the given vote candidate set.

23
gossip-base/src/main/java/org/apache/gossip/manager/AbstractActiveGossiper.java
View File

@ -17,33 +17,32 @@
*/
package org.apache.gossip.manager;
import java.util.Map.Entry;
import static com.codahale.metrics.MetricRegistry.name;
import com.codahale.metrics.Histogram;
import com.codahale.metrics.MetricRegistry;
import java.util.List;
import java.util.Map.Entry;
import java.util.Random;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import com.codahale.metrics.Histogram;
import com.codahale.metrics.MetricRegistry;
import lombok.extern.slf4j.Slf4j;
import org.apache.gossip.GossipSettings;
import org.apache.gossip.LocalMember;
import org.apache.gossip.model.ActiveGossipOk;
import org.apache.gossip.model.PerNodeDataMessage;
import org.apache.gossip.model.Member;
import org.apache.gossip.model.PerNodeDataMessage;
import org.apache.gossip.model.Response;
import org.apache.gossip.model.SharedDataMessage;
import org.apache.gossip.model.ShutdownMessage;
import org.apache.gossip.udp.*;
import org.apache.log4j.Logger;
import static com.codahale.metrics.MetricRegistry.name;
/**
* The ActiveGossipThread sends information. Pick a random partner and send the membership list to that partner
*/
@Slf4j
public abstract class AbstractActiveGossiper {
protected static final Logger LOGGER = Logger.getLogger(AbstractActiveGossiper.class);
protected final GossipManager gossipManager;
protected final GossipCore gossipCore;
private final Histogram sharedDataHistogram;
@ -128,7 +127,7 @@ public abstract class AbstractActiveGossiper {
udpMessage.setUriFrom(me.getId());
}
}
if (udpMessage.getMessages().size() > 0) {
if (!udpMessage.getMessages().isEmpty()) {
gossipCore.sendOneWay(udpMessage, member.getUri());
}
}
@ -229,7 +228,7 @@ public abstract class AbstractActiveGossiper {
if (r instanceof ActiveGossipOk){
//maybe count metrics here
} else {
LOGGER.debug("Message " + message + " generated response " + r);
log.debug("Message " + message + " generated response " + r);
}
sendMembershipHistogram.update(System.currentTimeMillis() - startTime);
}
@ -252,7 +251,7 @@ public abstract class AbstractActiveGossiper {
*/
protected LocalMember selectPartner(List<LocalMember> memberList) {
LocalMember member = null;
if (memberList.size() > 0) {
if (!memberList.isEmpty()) {
int randomNeighborIndex = random.nextInt(memberList.size());
member = memberList.get(randomNeighborIndex);
}

2
gossip-base/src/main/java/org/apache/gossip/manager/Clock.java
View File

@ -20,6 +20,6 @@ package org.apache.gossip.manager;
public interface Clock {
long currentTimeMillis();
long nanoTime();
long nanoTime();
}

1
gossip-base/src/main/java/org/apache/gossip/manager/DataReaper.java
View File

@ -22,7 +22,6 @@ import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import org.apache.gossip.model.PerNodeDataMessage;
import org.apache.gossip.model.SharedDataMessage;

16
gossip-base/src/main/java/org/apache/gossip/manager/DatacenterRackAwareActiveGossiper.java
View File

@ -17,20 +17,19 @@
*/
package org.apache.gossip.manager;
import java.util.List;
import com.codahale.metrics.MetricRegistry;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import lombok.extern.slf4j.Slf4j;
import org.apache.gossip.LocalMember;
import com.codahale.metrics.MetricRegistry;
/**
* Sends gossip traffic at different rates to other racks and data-centers.
* This implementation controls the rate at which gossip traffic is shared.
@ -38,18 +37,17 @@ import com.codahale.metrics.MetricRegistry;
* in the rack than in the the datacenter. We can adjust the rate at which we send messages to each group.
*
*/
@Slf4j
public class DatacenterRackAwareActiveGossiper extends AbstractActiveGossiper {
public static final String DATACENTER = "datacenter";
public static final String RACK = "rack";
private final BlockingQueue<Runnable> workQueue;
private int sameRackGossipIntervalMs = 100;
private int sameDcGossipIntervalMs = 500;
private int differentDatacenterGossipIntervalMs = 1000;
private int randomDeadMemberSendIntervalMs = 250;
private ScheduledExecutorService scheduledExecutorService;
private final BlockingQueue<Runnable> workQueue;
private ThreadPoolExecutor threadService;
public DatacenterRackAwareActiveGossiper(GossipManager gossipManager, GossipCore gossipCore,
@ -220,14 +218,14 @@ public class DatacenterRackAwareActiveGossiper extends AbstractActiveGossiper {
try {
scheduledExecutorService.awaitTermination(5, TimeUnit.SECONDS);
} catch (InterruptedException e) {
LOGGER.debug("Issue during shutdown", e);
log.debug("Issue during shutdown", e);
}
sendShutdownMessage();
threadService.shutdown();
try {
threadService.awaitTermination(5, TimeUnit.SECONDS);
} catch (InterruptedException e) {
LOGGER.debug("Issue during shutdown", e);
log.debug("Issue during shutdown", e);
}
}

68
gossip-base/src/main/java/org/apache/gossip/manager/GossipCore.java
View File

@ -20,6 +20,13 @@ package org.apache.gossip.manager;
import com.codahale.metrics.Gauge;
import com.codahale.metrics.Meter;
import com.codahale.metrics.MetricRegistry;
import java.io.IOException;
import java.net.URI;
import java.util.List;
import java.util.Map.Entry;
import java.util.concurrent.*;
import lombok.Getter;
import lombok.extern.slf4j.Slf4j;
import org.apache.gossip.LocalMember;
import org.apache.gossip.Member;
import org.apache.gossip.RemoteMember;
@ -33,35 +40,20 @@ import org.apache.gossip.model.PerNodeDataMessage;
import org.apache.gossip.model.Response;
import org.apache.gossip.model.SharedDataMessage;
import org.apache.gossip.udp.Trackable;
import org.apache.log4j.Logger;
import java.io.IOException;
import java.net.URI;
import java.util.List;
import java.util.Map.Entry;
import java.util.concurrent.*;
@Slf4j
public class GossipCore implements GossipCoreConstants {
class LatchAndBase {
private final CountDownLatch latch;
private volatile Base base;
LatchAndBase(){
latch = new CountDownLatch(1);
}
}
public static final Logger LOGGER = Logger.getLogger(GossipCore.class);
private final GossipManager gossipManager;
private ConcurrentHashMap<String, LatchAndBase> requests;
@Getter
private final ConcurrentHashMap<String, ConcurrentHashMap<String, PerNodeDataMessage>> perNodeData;
@Getter
private final ConcurrentHashMap<String, SharedDataMessage> sharedData;
private final Meter messageSerdeException;
private final Meter transmissionException;
private final Meter transmissionSuccess;
private final DataEventManager eventManager;
private ConcurrentHashMap<String, LatchAndBase> requests;
public GossipCore(GossipManager manager, MetricRegistry metrics){
this.gossipManager = manager;
requests = new ConcurrentHashMap<>();
@ -135,20 +127,12 @@ public class GossipCore implements GossipCoreConstants {
}
}
public ConcurrentHashMap<String, ConcurrentHashMap<String, PerNodeDataMessage>> getPerNodeData(){
return perNodeData;
}
public ConcurrentHashMap<String, SharedDataMessage> getSharedData() {
return sharedData;
}
public void shutdown(){
}
public void receive(Base base) {
if (!gossipManager.getMessageHandler().invoke(this, gossipManager, base)) {
LOGGER.warn("received message can not be handled");
log.warn("received message can not be handled");
}
}
@ -177,10 +161,8 @@ public class GossipCore implements GossipCoreConstants {
}
public Response send(Base message, URI uri){
if (LOGGER.isDebugEnabled()){
LOGGER.debug("Sending " + message);
LOGGER.debug("Current request queue " + requests);
}
log.debug("Sending " + message);
log.debug("Current request queue " + requests);
final Trackable t;
LatchAndBase latchAndBase = null;
@ -206,9 +188,7 @@ public class GossipCore implements GossipCoreConstants {
} catch (InterruptedException e) {
throw new RuntimeException(e);
} finally {
if (latchAndBase != null){
requests.remove(t.getUuid() + "/" + t.getUriFrom());
}
}
}
@ -222,7 +202,7 @@ public class GossipCore implements GossipCoreConstants {
try {
sendInternal(message, u);
} catch (RuntimeException ex) {
LOGGER.debug("Send one way failed", ex);
log.debug("Send one way failed", ex);
}
}
@ -240,12 +220,12 @@ public class GossipCore implements GossipCoreConstants {
*
*/
public void mergeLists(RemoteMember senderMember, List<Member> remoteList) {
if (LOGGER.isDebugEnabled()){
if (log.isDebugEnabled()){
debugState(senderMember, remoteList);
}
for (LocalMember i : gossipManager.getDeadMembers()) {
if (i.getId().equals(senderMember.getId())) {
LOGGER.debug(gossipManager.getMyself() + " contacted by dead member " + senderMember.getUri());
log.debug(gossipManager.getMyself() + " contacted by dead member " + senderMember.getUri());
i.recordHeartbeat(senderMember.getHeartbeat());
i.setHeartbeat(senderMember.getHeartbeat());
//TODO consider forcing an UP here
@ -275,14 +255,14 @@ public class GossipCore implements GossipCoreConstants {
}
}
}
if (LOGGER.isDebugEnabled()){
if (log.isDebugEnabled()){
debugState(senderMember, remoteList);
}
}
private void debugState(RemoteMember senderMember,
List<Member> remoteList){
LOGGER.warn(
log.warn(
"-----------------------\n" +
"Me " + gossipManager.getMyself() + "\n" +
"Sender " + senderMember + "\n" +
@ -329,4 +309,14 @@ public class GossipCore implements GossipCoreConstants {
void unregisterSharedDataSubscriber(UpdateSharedDataEventHandler handler){
eventManager.unregisterSharedDataSubscriber(handler);
}
class LatchAndBase {
private final CountDownLatch latch;
private volatile Base base;
LatchAndBase(){
latch = new CountDownLatch(1);
}
}
}

82
gossip-base/src/main/java/org/apache/gossip/manager/GossipManager.java
View File

@ -20,6 +20,22 @@ package org.apache.gossip.manager;
import com.codahale.metrics.MetricRegistry;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.File;
import java.io.Serial;
import java.net.URI;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Objects;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentSkipListMap;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.stream.Collectors;
import lombok.extern.slf4j.Slf4j;
import org.apache.gossip.GossipSettings;
import org.apache.gossip.LocalMember;
import org.apache.gossip.Member;
@ -36,29 +52,14 @@ import org.apache.gossip.model.SharedDataMessage;
import org.apache.gossip.protocol.ProtocolManager;
import org.apache.gossip.transport.TransportManager;
import org.apache.gossip.utils.ReflectionUtils;
import org.apache.log4j.Logger;
import java.io.File;
import java.net.URI;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Objects;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentSkipListMap;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.stream.Collectors;
@Slf4j
public class GossipManager {
public abstract class GossipManager {
public static final Logger LOGGER = Logger.getLogger(GossipManager.class);
// this mapper is used for ring and user-data persistence only. NOT messages.
public static final ObjectMapper metdataObjectMapper = new ObjectMapper() {
@Serial
private static final long serialVersionUID = 1L;
{
enableDefaultTyping();
@ -69,10 +70,6 @@ public abstract class GossipManager {
private final LocalMember me;
private final GossipSettings settings;
private final AtomicBoolean gossipServiceRunning;
private TransportManager transportManager;
private ProtocolManager protocolManager;
private final GossipCore gossipCore;
private final DataReaper dataReaper;
private final Clock clock;
@ -81,9 +78,10 @@ public abstract class GossipManager {
private final RingStatePersister ringState;
private final UserDataPersister userDataState;
private final GossipMemberStateRefresher memberStateRefresher;
private final MessageHandler messageHandler;
private final LockManager lockManager;
private TransportManager transportManager;
private ProtocolManager protocolManager;
public GossipManager(String cluster,
URI uri, String id, Map<String, String> properties, GossipSettings settings,
@ -122,6 +120,21 @@ public abstract class GossipManager {
readSavedDataState();
}
public static File buildRingStatePath(GossipManager manager) {
return new File(manager.getSettings().getPathToRingState(), "ringstate." + manager.getMyself().getClusterName() + "."
+ manager.getMyself().getId() + ".json");
}
public static File buildSharedDataPath(GossipManager manager){
return new File(manager.getSettings().getPathToDataState(), "shareddata."
+ manager.getMyself().getClusterName() + "." + manager.getMyself().getId() + ".json");
}
public static File buildPerNodeDataPath(GossipManager manager) {
return new File(manager.getSettings().getPathToDataState(), "pernodedata."
+ manager.getMyself().getClusterName() + "." + manager.getMyself().getId() + ".json");
}
public MessageHandler getMessageHandler() {
return messageHandler;
}
@ -194,7 +207,7 @@ public abstract class GossipManager {
scheduledServiced.scheduleAtFixedRate(userDataState, 60, 60, TimeUnit.SECONDS);
}
memberStateRefresher.init();
LOGGER.debug("The GossipManager is started.");
log.debug("The GossipManager is started.");
}
private void readSavedRingState() {
@ -238,7 +251,7 @@ public abstract class GossipManager {
try {
scheduledServiced.awaitTermination(1, TimeUnit.SECONDS);
} catch (InterruptedException e) {
LOGGER.error(e);
log.error("Error!", e);
}
scheduledServiced.shutdownNow();
}
@ -332,6 +345,8 @@ public abstract class GossipManager {
return clock;
}
// todo: consider making these path methods part of GossipSettings
public MetricRegistry getRegistry() {
return registry;
}
@ -344,23 +359,6 @@ public abstract class GossipManager {
return transportManager;
}
// todo: consider making these path methods part of GossipSettings
public static File buildRingStatePath(GossipManager manager) {
return new File(manager.getSettings().getPathToRingState(), "ringstate." + manager.getMyself().getClusterName() + "."
+ manager.getMyself().getId() + ".json");
}
public static File buildSharedDataPath(GossipManager manager){
return new File(manager.getSettings().getPathToDataState(), "shareddata."
+ manager.getMyself().getClusterName() + "." + manager.getMyself().getId() + ".json");
}
public static File buildPerNodeDataPath(GossipManager manager) {
return new File(manager.getSettings().getPathToDataState(), "pernodedata."
+ manager.getMyself().getClusterName() + "." + manager.getMyself().getId() + ".json");
}
public void registerPerNodeDataSubscriber(UpdateNodeDataEventHandler handler){
gossipCore.registerPerNodeDataSubscriber(handler);
}

28
gossip-base/src/main/java/org/apache/gossip/manager/GossipManagerBuilder.java
View File

@ -46,7 +46,7 @@ public class GossipManagerBuilder {
private List<Member> gossipMembers;
private GossipListener listener;
private MetricRegistry registry;
private Map<String,String> properties;
private Map<String, String> properties;
private MessageHandler messageHandler;
private ManagerBuilder() {}
@ -62,7 +62,7 @@ public class GossipManagerBuilder {
return this;
}
public ManagerBuilder properties(Map<String,String> properties) {
public ManagerBuilder properties(Map<String, String> properties) {
this.properties = properties;
return this;
}
@ -101,7 +101,7 @@ public class GossipManagerBuilder {
return this;
}
public ManagerBuilder uri(URI uri){
public ManagerBuilder uri(URI uri) {
this.uri = uri;
return this;
}
@ -116,14 +116,14 @@ public class GossipManagerBuilder {
checkArgument(cluster != null, "You must specify a cluster name");
checkArgument(settings != null, "You must specify gossip settings");
checkArgument(uri != null, "You must specify a uri");
if (registry == null){
if (registry == null) {
registry = new MetricRegistry();
}
if (properties == null){
properties = new HashMap<String,String>();
if (properties == null) {
properties = new HashMap<String, String>();
}
if (listener == null){
listener((a,b) -> {});
if (listener == null) {
listener((a, b) -> {});
}
if (gossipMembers == null) {
gossipMembers = new ArrayList<>();
@ -132,8 +132,16 @@ public class GossipManagerBuilder {
if (messageHandler == null) {
messageHandler = MessageHandlerFactory.defaultHandler();
}
return new GossipManager(cluster, uri, id, properties, settings, gossipMembers, listener, registry, messageHandler) {} ;
return new GossipManager(
cluster,
uri,
id,
properties,
settings,
gossipMembers,
listener,
registry,
messageHandler) {};
}
}
}

21
gossip-base/src/main/java/org/apache/gossip/manager/GossipMemberStateRefresher.java
View File

@ -18,22 +18,21 @@
package org.apache.gossip.manager;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.*;
import java.util.function.BiFunction;
import lombok.extern.slf4j.Slf4j;
import org.apache.gossip.GossipSettings;
import org.apache.gossip.LocalMember;
import org.apache.gossip.event.GossipListener;
import org.apache.gossip.event.GossipState;
import org.apache.gossip.model.PerNodeDataMessage;
import org.apache.gossip.model.ShutdownMessage;
import org.apache.log4j.Logger;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.*;
import java.util.function.BiFunction;
@Slf4j
public class GossipMemberStateRefresher {
public static final Logger LOGGER = Logger.getLogger(GossipMemberStateRefresher.class);
private final Map<LocalMember, GossipState> members;
private final GossipSettings settings;
@ -66,7 +65,7 @@ public class GossipMemberStateRefresher {
try {
runOnce();
} catch (RuntimeException ex) {
LOGGER.warn("scheduled state had exception", ex);
log.warn("scheduled state had exception", ex);
}
}
@ -144,13 +143,13 @@ public class GossipMemberStateRefresher {
try {
scheduledExecutor.awaitTermination(5, TimeUnit.SECONDS);
} catch (InterruptedException e) {
LOGGER.debug("Issue during shutdown", e);
log.debug("Issue during shutdown", e);
}
listenerExecutor.shutdown();
try {
listenerExecutor.awaitTermination(5, TimeUnit.SECONDS);
} catch (InterruptedException e) {
LOGGER.debug("Issue during shutdown", e);
log.debug("Issue during shutdown", e);
}
listenerExecutor.shutdownNow();
}

11
gossip-base/src/main/java/org/apache/gossip/manager/RingStatePersister.java
View File

@ -17,6 +17,7 @@
*/
package org.apache.gossip.manager;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
@ -24,14 +25,12 @@ import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.NavigableSet;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.apache.gossip.LocalMember;
import org.apache.log4j.Logger;
@Slf4j
public class RingStatePersister implements Runnable {
private static final Logger LOGGER = Logger.getLogger(RingStatePersister.class);
private final File path;
// NOTE: this is a different instance than what gets used for message marshalling.
private final ObjectMapper objectMapper;
@ -53,7 +52,7 @@ public class RingStatePersister implements Runnable {
try (FileOutputStream fos = new FileOutputStream(path)){
objectMapper.writeValue(fos, i);
} catch (IOException e) {
LOGGER.debug(e);
log.error("Error!", e);
}
}
@ -65,7 +64,7 @@ public class RingStatePersister implements Runnable {
try (FileInputStream fos = new FileInputStream(path)){
return objectMapper.readValue(fos, ArrayList.class);
} catch (IOException e) {
LOGGER.debug(e);
log.error("Error", e);
}
return new ArrayList<>();
}

70
gossip-base/src/main/java/org/apache/gossip/manager/SimpleActiveGossiper.java
View File

@ -25,48 +25,58 @@ import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import lombok.extern.slf4j.Slf4j;
import org.apache.gossip.LocalMember;
import com.codahale.metrics.MetricRegistry;
/**
* Base implementation gossips randomly to live nodes periodically gossips to dead ones
*
*/
/** Base implementation gossips randomly to live nodes periodically gossips to dead ones */
@Slf4j
public class SimpleActiveGossiper extends AbstractActiveGossiper {
private ScheduledExecutorService scheduledExecutorService;
private final BlockingQueue<Runnable> workQueue;
private ScheduledExecutorService scheduledExecutorService;
private ThreadPoolExecutor threadService;
public SimpleActiveGossiper(GossipManager gossipManager, GossipCore gossipCore,
MetricRegistry registry) {
public SimpleActiveGossiper(
GossipManager gossipManager, GossipCore gossipCore, MetricRegistry registry) {
super(gossipManager, gossipCore, registry);
scheduledExecutorService = Executors.newScheduledThreadPool(2);
workQueue = new ArrayBlockingQueue<Runnable>(1024);
threadService = new ThreadPoolExecutor(1, 30, 1, TimeUnit.SECONDS, workQueue,
new ThreadPoolExecutor.DiscardOldestPolicy());
threadService =
new ThreadPoolExecutor(
1, 30, 1, TimeUnit.SECONDS, workQueue, new ThreadPoolExecutor.DiscardOldestPolicy());
}
@Override
public void init() {
super.init();
scheduledExecutorService.scheduleAtFixedRate(() -> {
threadService.execute(() -> {
sendToALiveMember();
});
}, 0, gossipManager.getSettings().getGossipInterval(), TimeUnit.MILLISECONDS);
scheduledExecutorService.scheduleAtFixedRate(() -> {
sendToDeadMember();
}, 0, gossipManager.getSettings().getGossipInterval(), TimeUnit.MILLISECONDS);
scheduledExecutorService.scheduleAtFixedRate(
() -> sendPerNodeData(gossipManager.getMyself(),
selectPartner(gossipManager.getLiveMembers())),
0, gossipManager.getSettings().getGossipInterval(), TimeUnit.MILLISECONDS);
() -> {
threadService.execute(this::sendToALiveMember);
},
0,
gossipManager.getSettings().getGossipInterval(),
TimeUnit.MILLISECONDS);
scheduledExecutorService.scheduleAtFixedRate(
() -> sendSharedData(gossipManager.getMyself(),
selectPartner(gossipManager.getLiveMembers())),
0, gossipManager.getSettings().getGossipInterval(), TimeUnit.MILLISECONDS);
this::sendToDeadMember,
0,
gossipManager.getSettings().getGossipInterval(),
TimeUnit.MILLISECONDS);
scheduledExecutorService.scheduleAtFixedRate(
() ->
sendPerNodeData(
gossipManager.getMyself(), selectPartner(gossipManager.getLiveMembers())),
0,
gossipManager.getSettings().getGossipInterval(),
TimeUnit.MILLISECONDS);
scheduledExecutorService.scheduleAtFixedRate(
() ->
sendSharedData(
gossipManager.getMyself(), selectPartner(gossipManager.getLiveMembers())),
0,
gossipManager.getSettings().getGossipInterval(),
TimeUnit.MILLISECONDS);
}
@Override
@ -76,31 +86,29 @@ public class SimpleActiveGossiper extends AbstractActiveGossiper {
try {
scheduledExecutorService.awaitTermination(5, TimeUnit.SECONDS);
} catch (InterruptedException e) {
LOGGER.debug("Issue during shutdown", e);
log.debug("Issue during shutdown", e);
}
sendShutdownMessage();
threadService.shutdown();
try {
threadService.awaitTermination(5, TimeUnit.SECONDS);
} catch (InterruptedException e) {
LOGGER.debug("Issue during shutdown", e);
log.debug("Issue during shutdown", e);
}
}
protected void sendToALiveMember(){
protected void sendToALiveMember() {
LocalMember member = selectPartner(gossipManager.getLiveMembers());
sendMembershipList(gossipManager.getMyself(), member);
}
protected void sendToDeadMember(){
protected void sendToDeadMember() {
LocalMember member = selectPartner(gossipManager.getDeadMembers());
sendMembershipList(gossipManager.getMyself(), member);
}
/**
* sends an optimistic shutdown message to several clusters nodes
*/
protected void sendShutdownMessage(){
/** sends an optimistic shutdown message to several clusters nodes */
protected void sendShutdownMessage() {
List<LocalMember> l = gossipManager.getLiveMembers();
int sendTo = l.size() < 3 ? 1 : l.size() / 2;
for (int i = 0; i < sendTo; i++) {

1
gossip-base/src/main/java/org/apache/gossip/manager/SystemClock.java
View File

@ -28,5 +28,4 @@ public class SystemClock implements Clock {
public long nanoTime() {
return System.nanoTime();
}
}

35
gossip-base/src/main/java/org/apache/gossip/manager/UserDataPersister.java
View File

@ -24,13 +24,14 @@ import java.io.IOException;
import java.util.concurrent.ConcurrentHashMap;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.java.Log;
import lombok.extern.slf4j.Slf4j;
import org.apache.gossip.model.PerNodeDataMessage;
import org.apache.gossip.model.SharedDataMessage;
import org.apache.log4j.Logger;
@Slf4j
public class UserDataPersister implements Runnable {
private static final Logger LOGGER = Logger.getLogger(UserDataPersister.class);
private final GossipCore gossipCore;
private final File perNodePath;
@ -45,50 +46,48 @@ public class UserDataPersister implements Runnable {
}
@SuppressWarnings("unchecked")
ConcurrentHashMap<String, ConcurrentHashMap<String, PerNodeDataMessage>> readPerNodeFromDisk(){
ConcurrentHashMap<String, ConcurrentHashMap<String, PerNodeDataMessage>> readPerNodeFromDisk() {
if (!perNodePath.exists()) {
return new ConcurrentHashMap<String, ConcurrentHashMap<String, PerNodeDataMessage>>();
}
try (FileInputStream fos = new FileInputStream(perNodePath)){
try (FileInputStream fos = new FileInputStream(perNodePath)) {
return objectMapper.readValue(fos, ConcurrentHashMap.class);
} catch (IOException e) {
LOGGER.debug(e);
log.error("Error!", e);
}
return new ConcurrentHashMap<String, ConcurrentHashMap<String, PerNodeDataMessage>>();
}
void writePerNodeToDisk(){
try (FileOutputStream fos = new FileOutputStream(perNodePath)){
void writePerNodeToDisk() {
try (FileOutputStream fos = new FileOutputStream(perNodePath)) {
objectMapper.writeValue(fos, gossipCore.getPerNodeData());
} catch (IOException e) {
LOGGER.warn(e);
log.error("Error!", e);
}
}
void writeSharedToDisk(){
try (FileOutputStream fos = new FileOutputStream(sharedPath)){
void writeSharedToDisk() {
try (FileOutputStream fos = new FileOutputStream(sharedPath)) {
objectMapper.writeValue(fos, gossipCore.getSharedData());
} catch (IOException e) {
LOGGER.warn(e);
log.error("Error!", e);
}
}
@SuppressWarnings("unchecked")
ConcurrentHashMap<String, SharedDataMessage> readSharedDataFromDisk(){
ConcurrentHashMap<String, SharedDataMessage> readSharedDataFromDisk() {
if (!sharedPath.exists()) {
return new ConcurrentHashMap<>();
}
try (FileInputStream fos = new FileInputStream(sharedPath)){
try (FileInputStream fos = new FileInputStream(sharedPath)) {
return objectMapper.readValue(fos, ConcurrentHashMap.class);
} catch (IOException e) {
LOGGER.debug(e);
log.error("Error!", e);
}
return new ConcurrentHashMap<String, SharedDataMessage>();
return new ConcurrentHashMap<>();
}
/**
* Writes all pernode and shared data to disk
*/
/** Writes all pernode and shared data to disk */
@Override
public void run() {
writePerNodeToDisk();

15
gossip-base/src/main/java/org/apache/gossip/manager/handlers/ActiveGossipMessageHandler.java
View File

@ -17,6 +17,11 @@
*/
package org.apache.gossip.manager.handlers;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import lombok.extern.slf4j.Slf4j;
import org.apache.gossip.Member;
import org.apache.gossip.RemoteMember;
import org.apache.gossip.manager.GossipCore;
@ -26,11 +31,7 @@ import org.apache.gossip.udp.UdpActiveGossipMessage;
import org.apache.gossip.udp.UdpActiveGossipOk;
import org.apache.gossip.udp.UdpNotAMemberFault;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
@Slf4j
public class ActiveGossipMessageHandler implements MessageHandler {
/**
@ -49,7 +50,7 @@ public class ActiveGossipMessageHandler implements MessageHandler {
try {
u = new URI(activeGossipMessage.getMembers().get(i).getUri());
} catch (URISyntaxException e) {
GossipCore.LOGGER.debug("Gossip message with faulty URI", e);
log.debug("Gossip message with faulty URI", e);
continue;
}
RemoteMember member = new RemoteMember(
@ -66,7 +67,7 @@ public class ActiveGossipMessageHandler implements MessageHandler {
f.setException("Not a member of this cluster " + i);
f.setUriFrom(activeGossipMessage.getUriFrom());
f.setUuid(activeGossipMessage.getUuid());
GossipCore.LOGGER.warn(f);
log.warn("Warn", f);
gossipCore.sendOneWay(f, member.getUri());
continue;
}

41
gossip-base/src/main/java/org/apache/gossip/manager/handlers/MessageHandlerFactory.java
View File

@ -18,40 +18,35 @@
package org.apache.gossip.manager.handlers;
import org.apache.gossip.manager.GossipCore;
import org.apache.gossip.manager.GossipManager;
import org.apache.gossip.model.*;
import java.util.Arrays;
import java.util.Objects;
import java.util.stream.Stream;
import org.apache.gossip.model.*;
public class MessageHandlerFactory {
public static MessageHandler defaultHandler() {
return concurrentHandler(
new TypedMessageHandler(Response.class, new ResponseHandler()),
new TypedMessageHandler(ShutdownMessage.class, new ShutdownMessageHandler()),
new TypedMessageHandler(PerNodeDataMessage.class, new PerNodeDataMessageHandler()),
new TypedMessageHandler(SharedDataMessage.class, new SharedDataMessageHandler()),
new TypedMessageHandler(ActiveGossipMessage.class, new ActiveGossipMessageHandler()),
new TypedMessageHandler(PerNodeDataBulkMessage.class, new PerNodeDataBulkMessageHandler()),
new TypedMessageHandler(SharedDataBulkMessage.class, new SharedDataBulkMessageHandler())
);
new TypedMessageHandlerWrapper(Response.class, new ResponseHandler()),
new TypedMessageHandlerWrapper(ShutdownMessage.class, new ShutdownMessageHandler()),
new TypedMessageHandlerWrapper(PerNodeDataMessage.class, new PerNodeDataMessageHandler()),
new TypedMessageHandlerWrapper(SharedDataMessage.class, new SharedDataMessageHandler()),
new TypedMessageHandlerWrapper(ActiveGossipMessage.class, new ActiveGossipMessageHandler()),
new TypedMessageHandlerWrapper(
PerNodeDataBulkMessage.class, new PerNodeDataBulkMessageHandler()),
new TypedMessageHandlerWrapper(
SharedDataBulkMessage.class, new SharedDataBulkMessageHandler()));
}
public static MessageHandler concurrentHandler(MessageHandler... handlers) {
if (handlers == null)
throw new NullPointerException("handlers cannot be null");
if (Arrays.asList(handlers).stream().filter(i -> i != null).count() != handlers.length) {
if (handlers == null) throw new NullPointerException("handlers cannot be null");
if (Arrays.stream(handlers).filter(Objects::nonNull).count() != handlers.length) {
throw new NullPointerException("found at least one null handler");
}
return new MessageHandler() {
@Override public boolean invoke(GossipCore gossipCore, GossipManager gossipManager,
Base base) {
// return true if at least one of the component handlers return true.
return Arrays.asList(handlers).stream()
.filter((mi) -> mi.invoke(gossipCore, gossipManager, base)).count() > 0;
}
return (gossipCore, gossipManager, base) -> {
// return true if at least one of the component handlers return true.
return Stream.of(handlers).filter((mi) -> mi.invoke(gossipCore, gossipManager, base)).count()
> 0;
};
}
}

3
gossip-base/src/main/java/org/apache/gossip/manager/handlers/PerNodeDataBulkMessageHandler.java
View File

@ -34,8 +34,7 @@ public class PerNodeDataBulkMessageHandler implements MessageHandler {
@Override
public boolean invoke(GossipCore gossipCore, GossipManager gossipManager, Base base) {
UdpPerNodeDataBulkMessage udpMessage = (UdpPerNodeDataBulkMessage) base;
for (PerNodeDataMessage dataMsg: udpMessage.getMessages())
gossipCore.addPerNodeData(dataMsg);
for (PerNodeDataMessage dataMsg : udpMessage.getMessages()) gossipCore.addPerNodeData(dataMsg);
return true;
}
}

5
gossip-base/src/main/java/org/apache/gossip/manager/handlers/SharedDataBulkMessageHandler.java
View File

@ -23,7 +23,7 @@ import org.apache.gossip.model.Base;
import org.apache.gossip.model.SharedDataMessage;
import org.apache.gossip.udp.UdpSharedDataBulkMessage;
public class SharedDataBulkMessageHandler implements MessageHandler{
public class SharedDataBulkMessageHandler implements MessageHandler {
/**
* @param gossipCore context.
@ -34,8 +34,7 @@ public class SharedDataBulkMessageHandler implements MessageHandler{
@Override
public boolean invoke(GossipCore gossipCore, GossipManager gossipManager, Base base) {
UdpSharedDataBulkMessage udpMessage = (UdpSharedDataBulkMessage) base;
for (SharedDataMessage dataMsg: udpMessage.getMessages())
gossipCore.addSharedData(dataMsg);
for (SharedDataMessage dataMsg : udpMessage.getMessages()) gossipCore.addSharedData(dataMsg);
return true;
}
}

2
gossip-base/src/main/java/org/apache/gossip/manager/handlers/SharedDataMessageHandler.java
View File

@ -22,7 +22,7 @@ import org.apache.gossip.manager.GossipManager;
import org.apache.gossip.model.Base;
import org.apache.gossip.udp.UdpSharedDataMessage;
public class SharedDataMessageHandler implements MessageHandler{
public class SharedDataMessageHandler implements MessageHandler {
/**
* @param gossipCore context.

8
gossip-base/src/main/java/org/apache/gossip/manager/handlers/TypedMessageHandler.java → gossip-base/src/main/java/org/apache/gossip/manager/handlers/TypedMessageHandlerWrapper.java
View File

@ -21,11 +21,11 @@ import org.apache.gossip.manager.GossipCore;
import org.apache.gossip.manager.GossipManager;
import org.apache.gossip.model.Base;
public class TypedMessageHandler implements MessageHandler {
final private Class<?> messageClass;
final private MessageHandler messageHandler;
public class TypedMessageHandlerWrapper implements MessageHandler {
private final Class<?> messageClass;
private final MessageHandler messageHandler;
public TypedMessageHandler(Class<?> messageClass, MessageHandler messageHandler) {
public TypedMessageHandlerWrapper(Class<?> messageClass, MessageHandler messageHandler) {
if (messageClass == null || messageHandler == null) {
throw new NullPointerException();
}

5
gossip-base/src/main/java/org/apache/gossip/model/ActiveGossipMessage.java
View File

@ -24,9 +24,7 @@ public class ActiveGossipMessage extends Base {
private List<Member> members = new ArrayList<>();
public ActiveGossipMessage(){
}
public ActiveGossipMessage() {}
public List<Member> getMembers() {
return members;
@ -35,5 +33,4 @@ public class ActiveGossipMessage extends Base {
public void setMembers(List<Member> members) {
this.members = members;
}
}

4
gossip-base/src/main/java/org/apache/gossip/model/ActiveGossipOk.java
View File

@ -17,6 +17,4 @@
*/
package org.apache.gossip.model;
public class ActiveGossipOk extends Response {
}
public class ActiveGossipOk extends Response {}

14
gossip-base/src/main/java/org/apache/gossip/model/Base.java
View File

@ -17,16 +17,14 @@
*/
package org.apache.gossip.model;
import org.apache.gossip.udp.UdpActiveGossipMessage;
import org.apache.gossip.udp.UdpActiveGossipOk;
import org.apache.gossip.udp.UdpPerNodeDataBulkMessage;
import org.apache.gossip.udp.UdpNotAMemberFault;
import org.apache.gossip.udp.UdpSharedDataBulkMessage;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.annotation.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonSubTypes.Type;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import org.apache.gossip.udp.UdpActiveGossipMessage;
import org.apache.gossip.udp.UdpActiveGossipOk;
import org.apache.gossip.udp.UdpNotAMemberFault;
import org.apache.gossip.udp.UdpPerNodeDataBulkMessage;
import org.apache.gossip.udp.UdpSharedDataBulkMessage;
@JsonTypeInfo(
use = JsonTypeInfo.Id.CLASS,

4
gossip-base/src/main/java/org/apache/gossip/model/Fault.java
View File

@ -21,7 +21,7 @@ public abstract class Fault extends Response {
private String exception;
public Fault(){}
public Fault() {}
public String getException() {
return exception;
@ -35,6 +35,4 @@ public abstract class Fault extends Response {
public String toString() {
return "Fault [exception=" + exception + "]";
}
}

22
gossip-base/src/main/java/org/apache/gossip/model/Member.java
View File

@ -25,13 +25,11 @@ public class Member {
private String uri;
private String id;
private Long heartbeat;
private Map<String,String> properties;
private Map<String, String> properties;
public Member(){
public Member() {}
}
public Member(String cluster, String uri, String id, Long heartbeat){
public Member(String cluster, String uri, String id, Long heartbeat) {
this.cluster = cluster;
this.uri = uri;
this.id = id;
@ -80,8 +78,16 @@ public class Member {
@Override
public String toString() {
return "Member [cluster=" + cluster + ", uri=" + uri + ", id=" + id + ", heartbeat="
+ heartbeat + ", properties=" + properties + "]";
return "Member [cluster="
+ cluster
+ ", uri="
+ uri
+ ", id="
+ id
+ ", heartbeat="
+ heartbeat
+ ", properties="
+ properties
+ "]";
}
}

4
gossip-base/src/main/java/org/apache/gossip/model/Message.java
View File

@ -17,6 +17,4 @@
*/
package org.apache.gossip.model;
public class Message extends Base {
}
public class Message extends Base {}

6
gossip-base/src/main/java/org/apache/gossip/model/NotAMemberFault.java
View File

@ -19,11 +19,9 @@ package org.apache.gossip.model;
public class NotAMemberFault extends Fault {
public NotAMemberFault(){
public NotAMemberFault() {}
}
public NotAMemberFault(String message){
public NotAMemberFault(String message) {
this.setException(message);
}
}

8
gossip-base/src/main/java/org/apache/gossip/model/PerNodeDataBulkMessage.java
View File

@ -32,8 +32,10 @@ public class PerNodeDataBulkMessage extends Base {
return messages;
}
@Override public String toString() {
return "GossipDataBulkMessage[" + messages.stream().map(Object::toString)
.collect(Collectors.joining(",")) + "]";
@Override
public String toString() {
return "GossipDataBulkMessage["
+ messages.stream().map(Object::toString).collect(Collectors.joining(","))
+ "]";
}
}

28
gossip-base/src/main/java/org/apache/gossip/model/PerNodeDataMessage.java
View File

@ -31,30 +31,39 @@ public class PerNodeDataMessage extends Base {
public String getNodeId() {
return nodeId;
}
public void setNodeId(String nodeId) {
this.nodeId = nodeId;
}
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
public Object getPayload() {
return payload;
}
public void setPayload(Object payload) {
this.payload = payload;
}
public Long getTimestamp() {
return timestamp;
}
public void setTimestamp(Long timestamp) {
this.timestamp = timestamp;
}
public Long getExpireAt() {
return expireAt;
}
public void setExpireAt(Long expireAt) {
this.expireAt = expireAt;
}
@ -69,11 +78,18 @@ public class PerNodeDataMessage extends Base {
@Override
public String toString() {
return "GossipDataMessage [nodeId=" + nodeId + ", key=" + key + ", payload=" + payload
+ ", timestamp=" + timestamp + ", expireAt=" + expireAt
+ ", replicable=" + replicable + "]";
return "GossipDataMessage [nodeId="
+ nodeId
+ ", key="
+ key
+ ", payload="
+ payload
+ ", timestamp="
+ timestamp
+ ", expireAt="
+ expireAt
+ ", replicable="
+ replicable
+ "]";
}
}

4
gossip-base/src/main/java/org/apache/gossip/model/Response.java
View File

@ -17,6 +17,4 @@
*/
package org.apache.gossip.model;
public abstract class Response extends Base {
}
public abstract class Response extends Base {}

8
gossip-base/src/main/java/org/apache/gossip/model/SharedDataBulkMessage.java
View File

@ -32,8 +32,10 @@ public class SharedDataBulkMessage extends Base {
return messages;
}
@Override public String toString() {
return "SharedGossipDataBulkMessage[" + messages.stream().map(Object::toString)
.collect(Collectors.joining(",")) + "]";
@Override
public String toString() {
return "SharedGossipDataBulkMessage["
+ messages.stream().map(Object::toString).collect(Collectors.joining(","))
+ "]";
}
}

1
gossip-base/src/main/java/org/apache/gossip/model/SharedDataMessage.java
View File

@ -17,7 +17,6 @@
*/
package org.apache.gossip.model;
import org.apache.gossip.replication.AllReplicable;
import org.apache.gossip.replication.Replicable;
public class SharedDataMessage extends Base {

5
gossip-base/src/main/java/org/apache/gossip/model/ShutdownMessage.java
View File

@ -23,9 +23,7 @@ public class ShutdownMessage extends Message {
private long shutdownAtNanos;
private String nodeId;
public ShutdownMessage(){
}
public ShutdownMessage() {}
public String getNodeId() {
return nodeId;
@ -47,5 +45,4 @@ public class ShutdownMessage extends Message {
public String toString() {
return "ShutdownMessage [shutdownAtNanos=" + shutdownAtNanos + ", nodeId=" + nodeId + "]";
}
}

11
gossip-base/src/main/java/org/apache/gossip/model/SignedPayload.java
View File

@ -17,20 +17,23 @@
*/
package org.apache.gossip.model;
public class SignedPayload extends Base{
private byte [] data;
private byte [] signature;
public class SignedPayload extends Base {
private byte[] data;
private byte[] signature;
public byte[] getData() {
return data;
}
public void setData(byte[] data) {
this.data = data;
}
public byte[] getSignature() {
return signature;
}
public void setSignature(byte[] signature) {
this.signature = signature;
}
}

3
gossip-base/src/main/java/org/apache/gossip/protocol/ProtocolManager.java
View File

@ -17,9 +17,8 @@
*/
package org.apache.gossip.protocol;
import org.apache.gossip.model.Base;
import java.io.IOException;
import org.apache.gossip.model.Base;
/** interface for managing message marshaling. */
public interface ProtocolManager {

10
gossip-base/src/main/java/org/apache/gossip/replication/DataCenterReplicable.java
View File

@ -34,13 +34,15 @@ public class DataCenterReplicable<T extends Base> implements Replicable<T> {
if (!me.getProperties().containsKey(DatacenterRackAwareActiveGossiper.DATACENTER)) {
// replicate to others if I am not belong to any data center
return true;
} else if (!destination.getProperties()
.containsKey(DatacenterRackAwareActiveGossiper.DATACENTER)) {
} else if (!destination
.getProperties()
.containsKey(DatacenterRackAwareActiveGossiper.DATACENTER)) {
// Do not replicate if the destination data center is not defined
return false;
} else {
return me.getProperties().get(DatacenterRackAwareActiveGossiper.DATACENTER)
.equals(destination.getProperties().get(DatacenterRackAwareActiveGossiper.DATACENTER));
return me.getProperties()
.get(DatacenterRackAwareActiveGossiper.DATACENTER)
.equals(destination.getProperties().get(DatacenterRackAwareActiveGossiper.DATACENTER));
}
}
}

5
gossip-base/src/main/java/org/apache/gossip/replication/Replicable.java
View File

@ -21,14 +21,15 @@ import org.apache.gossip.LocalMember;
import org.apache.gossip.model.Base;
/**
* This interface is used to determine whether a data item needs to be replicated to
* another gossip member.
* This interface is used to determine whether a data item needs to be replicated to another gossip
* member.
*
* @param <T> A subtype of the class {@link org.apache.gossip.model.Base} which uses this interface
*/
public interface Replicable<T extends Base> {
/**
* Test for a given data item needs to be replicated.
*
* @param me node that the data item is going to transmit from.
* @param destination target node to replicate.
* @param message this parameter is currently ignored

5
gossip-base/src/main/java/org/apache/gossip/replication/WhiteListReplicable.java
View File

@ -17,11 +17,10 @@
*/
package org.apache.gossip.replication;
import org.apache.gossip.LocalMember;
import org.apache.gossip.model.Base;
import java.util.ArrayList;
import java.util.List;
import org.apache.gossip.LocalMember;
import org.apache.gossip.model.Base;
/**
* Replicable implementation which replicates data to given set of nodes.

6
gossip-base/src/main/java/org/apache/gossip/secure/KeyTool.java
View File

@ -31,7 +31,7 @@ import java.security.SecureRandom;
public class KeyTool {
public static void generatePubandPrivateKeyFiles(String path, String id)
throws NoSuchAlgorithmException, NoSuchProviderException, IOException{
throws NoSuchAlgorithmException, NoSuchProviderException, IOException {
SecureRandom r = new SecureRandom();
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DSA", "SUN");
keyGen.initialize(1024, r);
@ -50,8 +50,8 @@ public class KeyTool {
}
}
public static void main (String [] args) throws
NoSuchAlgorithmException, NoSuchProviderException, IOException{
public static void main(String[] args)
throws NoSuchAlgorithmException, NoSuchProviderException, IOException {
generatePubandPrivateKeyFiles(args[0], args[1]);
}
}

20
gossip-base/src/main/java/org/apache/gossip/transport/AbstractTransportManager.java
View File

@ -18,27 +18,25 @@
package org.apache.gossip.transport;
import com.codahale.metrics.MetricRegistry;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import lombok.extern.slf4j.Slf4j;
import org.apache.gossip.manager.AbstractActiveGossiper;
import org.apache.gossip.manager.GossipCore;
import org.apache.gossip.manager.GossipManager;
import org.apache.gossip.utils.ReflectionUtils;
import org.apache.log4j.Logger;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
/**
* Manage the protcol threads (active and passive gossipers).
*/
@Slf4j
public abstract class AbstractTransportManager implements TransportManager {
public static final Logger LOGGER = Logger.getLogger(AbstractTransportManager.class);
private final ExecutorService gossipThreadExecutor;
private final AbstractActiveGossiper activeGossipThread;
protected final GossipManager gossipManager;
protected final GossipCore gossipCore;
private final ExecutorService gossipThreadExecutor;
private final AbstractActiveGossiper activeGossipThread;
public AbstractTransportManager(GossipManager gossipManager, GossipCore gossipCore) {
this.gossipManager = gossipManager;
@ -65,10 +63,10 @@ public abstract class AbstractTransportManager implements TransportManager {
boolean result = gossipThreadExecutor.awaitTermination(10, TimeUnit.MILLISECONDS);
if (!result) {
// common when blocking patterns are used to read data from a socket.
LOGGER.warn("executor shutdown timed out");
log.warn("executor shutdown timed out");
}
} catch (InterruptedException e) {
LOGGER.error(e);
log.error("Error!", e);
}
gossipThreadExecutor.shutdownNow();
}

10
gossip-base/src/main/java/org/apache/gossip/transport/TransportManager.java
View File

@ -23,10 +23,16 @@ import java.net.URI;
/** interface for manager that sends and receives messages that have already been serialized. */
public interface TransportManager {
/** starts the active gossip thread responsible for reaching out to remote nodes. Not related to `startEndpoint()` */
/**
* starts the active gossip thread responsible for reaching out to remote nodes. Not related to
* `startEndpoint()`
*/
void startActiveGossiper();
/** starts the passive gossip thread that receives messages from remote nodes. Not related to `startActiveGossiper()` */
/**
* starts the passive gossip thread that receives messages from remote nodes. Not related to
* `startActiveGossiper()`
*/
void startEndpoint();
/** attempts to shutdown all threads. */

1
gossip-base/src/main/java/org/apache/gossip/udp/Trackable.java
View File

@ -26,5 +26,4 @@ public interface Trackable {
String getUuid();
void setUuid(String uuid);
}

10
gossip-base/src/main/java/org/apache/gossip/udp/UdpActiveGossipMessage.java
View File

@ -42,8 +42,12 @@ public class UdpActiveGossipMessage extends ActiveGossipMessage implements Track
@Override
public String toString() {
return "UdpActiveGossipMessage [uriFrom=" + uriFrom + ", uuid=" + uuid + ", getMembers()="
+ getMembers() + "]";
return "UdpActiveGossipMessage [uriFrom="
+ uriFrom
+ ", uuid="
+ uuid
+ ", getMembers()="
+ getMembers()
+ "]";
}
}

2
gossip-base/src/main/java/org/apache/gossip/udp/UdpActiveGossipOk.java
View File

@ -21,7 +21,6 @@ import org.apache.gossip.model.ActiveGossipOk;
public class UdpActiveGossipOk extends ActiveGossipOk implements Trackable {
private String uriFrom;
private String uuid;
@ -40,5 +39,4 @@ public class UdpActiveGossipOk extends ActiveGossipOk implements Trackable {
public void setUuid(String uuid) {
this.uuid = uuid;
}
}

7
gossip-base/src/main/java/org/apache/gossip/udp/UdpNotAMemberFault.java
View File

@ -19,13 +19,11 @@ package org.apache.gossip.udp;
import org.apache.gossip.model.NotAMemberFault;
public class UdpNotAMemberFault extends NotAMemberFault implements Trackable{
public class UdpNotAMemberFault extends NotAMemberFault implements Trackable {
public UdpNotAMemberFault(){
}
private String uriFrom;
private String uuid;
public UdpNotAMemberFault() {}
public String getUriFrom() {
return uriFrom;
@ -42,5 +40,4 @@ public class UdpNotAMemberFault extends NotAMemberFault implements Trackable{
public void setUuid(String uuid) {
this.uuid = uuid;
}
}

10
gossip-base/src/main/java/org/apache/gossip/udp/UdpPerNodeDataBulkMessage.java
View File

@ -42,8 +42,12 @@ public class UdpPerNodeDataBulkMessage extends PerNodeDataBulkMessage implements
@Override
public String toString() {
return "UdpGossipDataMessage [uriFrom=" + uriFrom + ", uuid=" + uuid
+ ", messages=[" + super.toString() + "] ]";
return "UdpGossipDataMessage [uriFrom="
+ uriFrom
+ ", uuid="
+ uuid
+ ", messages=["
+ super.toString()
+ "] ]";
}
}

10
gossip-base/src/main/java/org/apache/gossip/udp/UdpPerNodeDataMessage.java
View File

@ -42,8 +42,12 @@ public class UdpPerNodeDataMessage extends PerNodeDataMessage implements Trackab
@Override
public String toString() {
return "UdpGossipDataMessage [uriFrom=" + uriFrom + ", uuid=" + uuid
+ ", getReplicable()=" + getReplicable() + "]";
return "UdpGossipDataMessage [uriFrom="
+ uriFrom
+ ", uuid="
+ uuid
+ ", getReplicable()="
+ getReplicable()
+ "]";
}
}

11
gossip-base/src/main/java/org/apache/gossip/udp/UdpSharedDataBulkMessage.java
View File

@ -42,8 +42,13 @@ public class UdpSharedDataBulkMessage extends SharedDataBulkMessage implements T
@Override
public String toString() {
return "UdpSharedGossipDataMessage [uriFrom=" + uriFrom + ", uuid=" + uuid + ", getNodeId()="
+ ", messages=[" + super.toString() + "] ]";
return "UdpSharedGossipDataMessage [uriFrom="
+ uriFrom
+ ", uuid="
+ uuid
+ ", getNodeId()="
+ ", messages=["
+ super.toString()
+ "] ]";
}
}

22
gossip-base/src/main/java/org/apache/gossip/udp/UdpSharedDataMessage.java
View File

@ -42,10 +42,22 @@ public class UdpSharedDataMessage extends SharedDataMessage implements Trackable
@Override
public String toString() {
return "UdpSharedGossipDataMessage [uriFrom=" + uriFrom + ", uuid=" + uuid + ", getNodeId()="
+ getNodeId() + ", getKey()=" + getKey() + ", getPayload()=" + getPayload()
+ ", getTimestamp()=" + getTimestamp() + ", getExpireAt()=" + getExpireAt()
+ ", getReplicable()=" + getReplicable() + "]";
return "UdpSharedGossipDataMessage [uriFrom="
+ uriFrom
+ ", uuid="
+ uuid
+ ", getNodeId()="
+ getNodeId()
+ ", getKey()="
+ getKey()
+ ", getPayload()="
+ getPayload()
+ ", getTimestamp()="
+ getTimestamp()
+ ", getExpireAt()="
+ getExpireAt()
+ ", getReplicable()="
+ getReplicable()
+ "]";
}
}

14
gossip-base/src/main/java/org/apache/gossip/utils/ReflectionUtils.java
View File

@ -23,8 +23,9 @@ import java.lang.reflect.InvocationTargetException;
public class ReflectionUtils {
/**
* Create an instance of a thing. This method essentially makes code more readable by handing the various exception
* trapping.
* Create an instance of a thing. This method essentially makes code more readable by handing the
* various exception trapping.
*
* @param className
* @param constructorTypes
* @param constructorArgs
@ -32,20 +33,23 @@ public class ReflectionUtils {
* @return constructed instance of a thing.
*/
@SuppressWarnings("unchecked")
public static <T> T constructWithReflection(String className, Class<?>[] constructorTypes, Object[] constructorArgs) {
public static <T> T constructWithReflection(
String className, Class<?>[] constructorTypes, Object[] constructorArgs) {
try {
Constructor<?> c = Class.forName(className).getConstructor(constructorTypes);
c.setAccessible(true);
return (T) c.newInstance(constructorArgs);
} catch (InvocationTargetException e) {
// catch ITE and throw the target if it is a RTE.
if (e.getTargetException() != null && RuntimeException.class.isAssignableFrom(e.getTargetException().getClass())) {
if (e.getTargetException() != null
&& RuntimeException.class.isAssignableFrom(e.getTargetException().getClass())) {
throw (RuntimeException) e.getTargetException();
} else {
throw new RuntimeException(e);
}
} catch (ReflectiveOperationException others) {
// Note: No class in the above list should be a descendent of RuntimeException. Otherwise, we're just wrapping
// Note: No class in the above list should be a descendent of RuntimeException. Otherwise,
// we're just wrapping
// and making stack traces confusing.
throw new RuntimeException(others);
}

3
gossip-base/src/main/resources/log4j.properties
View File

@ -9,12 +9,9 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
log4j.rootLogger=INFO,stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p %d{HH:mm:ss,SSS} %m%n
log4j.logger.io.teknek=DEBUG
log4j.logger.com.google.code.gossip=INFO

26
gossip-base/src/test/java/org/apache/gossip/AbstractIntegrationBase.java
View File

@ -31,14 +31,14 @@ import org.junit.Before;
public abstract class AbstractIntegrationBase {
List <GossipManager> nodes = new ArrayList<>();
List<GossipManager> nodes = new ArrayList<>();
public void register(GossipManager manager){
public void register(GossipManager manager) {
nodes.add(manager);
}
public void generateStandardNodes(final int memberCount) throws URISyntaxException {
if(nodes.size() > 0){
if (nodes.size() > 0) {
after();
nodes.clear();
}
@ -55,24 +55,30 @@ public abstract class AbstractIntegrationBase {
for (int i = 1; i < memberCount + 1; ++i) {
URI uri = new URI("udp://" + "127.0.0.1" + ":" + (50000 + i));
GossipManager gossipService = GossipManagerBuilder.newBuilder().cluster(cluster).uri(uri)
.id(i + "").gossipMembers(startupMembers).gossipSettings(settings).build();
GossipManager gossipService =
GossipManagerBuilder.newBuilder()
.cluster(cluster)
.uri(uri)
.id(i + "")
.gossipMembers(startupMembers)
.gossipSettings(settings)
.build();
gossipService.init();
register(gossipService);
}
}
@Before
public void before(){
public void before() {
nodes = new ArrayList<>();
}
@After
public void after(){
for (GossipManager node: nodes){
if (node !=null){
public void after() {
for (GossipManager node : nodes) {
if (node != null) {
node.shutdown();
}
}
}
}

30
gossip-base/src/test/java/org/apache/gossip/MemberTest.java
View File

@ -20,21 +20,31 @@ package org.apache.gossip;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.HashMap;
import org.junit.Assert;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.junit.platform.runner.JUnitPlatform;
import org.junit.runner.RunWith;
@RunWith(JUnitPlatform.class)
public class MemberTest {
@Test
public void testHashCodeFromGossip40() throws URISyntaxException {
Assert.assertNotEquals(
new LocalMember("mycluster", new URI("udp://4.4.4.4:1000"), "myid", 1, new HashMap<String,String>(), 10, 5, "exponential")
.hashCode(),
new LocalMember("mycluster", new URI("udp://4.4.4.5:1005"), "yourid", 11, new HashMap<String,String>(), 11, 6, "exponential")
.hashCode());
Assertions.assertNotEquals(new LocalMember(
"mycluster",
new URI("udp://4.4.4.4:1000"),
"myid",
1,
new HashMap<>(),
10,
5,
"exponential")
.hashCode(), new LocalMember(
"mycluster",
new URI("udp://4.4.4.5:1005"),
"yourid",
11,
new HashMap<>(),
11,
6,
"exponential")
.hashCode());
}
}

60
gossip-base/src/test/java/org/apache/gossip/accrual/FailureDetectorTest.java
View File

@ -17,24 +17,15 @@
*/
package org.apache.gossip.accrual;
import org.apache.gossip.GossipSettings;
import org.junit.Assert;
import org.junit.jupiter.api.Test;
import org.junit.platform.runner.JUnitPlatform;
import org.junit.runner.RunWith;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import org.apache.gossip.GossipSettings;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
@RunWith(JUnitPlatform.class)
public class FailureDetectorTest {
@FunctionalInterface
interface TriConsumer<A, B, C> {
void accept(A a, B b, C c);
}
static final Double failureThreshold = new GossipSettings().getConvictThreshold();
List<Integer> generateTimeList(int begin, int end, int step) {
@ -52,8 +43,8 @@ public class FailureDetectorTest {
public void normalDistribution() {
FailureDetector fd = new FailureDetector(1, 1000, "normal");
List<Integer> values = generateTimeList(0, 10000, 100);
Double deltaSum = 0.0;
Integer deltaCount = 0;
double deltaSum = 0.0;
int deltaCount = 0;
for (int i = 0; i < values.size() - 1; i++) {
fd.recordHeartbeat(values.get(i));
if (i != 0) {
@ -64,21 +55,23 @@ public class FailureDetectorTest {
Integer lastRecorded = values.get(values.size() - 2);
//after "step" delay we need to be considered UP
Assert.assertTrue(fd.computePhiMeasure(values.get(values.size() - 1)) < failureThreshold);
Assertions.assertTrue(fd.computePhiMeasure(values.get(values.size() - 1)) < failureThreshold);
//if we check phi-measure after mean delay we get value for 0.5 probability(normal distribution)
Assert.assertEquals(fd.computePhiMeasure(lastRecorded + Math.round(deltaSum / deltaCount)), -Math.log10(0.5), 0.1);
Assertions.assertEquals(fd.computePhiMeasure(lastRecorded + Math.round(deltaSum / deltaCount)),
-Math.log10(0.5),
0.1);
}
@Test
public void checkMinimumSamples() {
Integer minimumSamples = 5;
int minimumSamples = 5;
FailureDetector fd = new FailureDetector(minimumSamples, 1000, "normal");
for (int i = 0; i < minimumSamples + 1; i++) { // +1 because we don't place first heartbeat into structure
Assert.assertNull(fd.computePhiMeasure(100));
Assertions.assertNull(fd.computePhiMeasure(100));
fd.recordHeartbeat(i);
}
Assert.assertNotNull(fd.computePhiMeasure(100));
Assertions.assertNotNull(fd.computePhiMeasure(100));
}
@Test
@ -86,28 +79,33 @@ public class FailureDetectorTest {
final FailureDetector fd = new FailureDetector(5, 1000, "normal");
TriConsumer<Integer, Integer, Integer> checkAlive = (begin, end, step) -> {
List<Integer> times = generateTimeList(begin, end, step);
for (int i = 0; i < times.size(); i++) {
Double current = fd.computePhiMeasure(times.get(i));
if (current != null) {
Assert.assertTrue(current < failureThreshold);
for (Integer time : times) {
Double current = fd.computePhiMeasure(time);
if (current != null) {
Assertions.assertTrue(current < failureThreshold);
}
fd.recordHeartbeat(time);
}
fd.recordHeartbeat(times.get(i));
}
};
TriConsumer<Integer, Integer, Integer> checkDeadMonotonic = (begin, end, step) -> {
List<Integer> times = generateTimeList(begin, end, step);
Double prev = null;
for (int i = 0; i < times.size(); i++) {
Double current = fd.computePhiMeasure(times.get(i));
if (current != null && prev != null) {
Assert.assertTrue(current >= prev);
for (Integer time : times) {
Double current = fd.computePhiMeasure(time);
if (current != null && prev != null) {
Assertions.assertTrue(current >= prev);
}
prev = current;
}
prev = current;
}
};
checkAlive.accept(0, 20000, 100);
checkDeadMonotonic.accept(20000, 20500, 5);
}
@FunctionalInterface
interface TriConsumer<A, B, C> {
void accept(A a, B b, C c);
}
}

42
gossip-base/src/test/java/org/apache/gossip/crdt/AddRemoveStringSetTest.java
View File

@ -39,16 +39,17 @@ import java.util.stream.Stream;
*/
@Ignore
public abstract class AddRemoveStringSetTest<SetType extends CrdtAddRemoveSet<String, Set<String>, SetType>> {
public abstract class AddRemoveStringSetTest<
SetType extends CrdtAddRemoveSet<String, Set<String>, SetType>> {
private Set<String> sampleSet;
abstract SetType construct(Set<String> set);
abstract SetType construct();
private Set<String> sampleSet;
@Before
public void setup(){
public void setup() {
sampleSet = new HashSet<>();
sampleSet.add("4");
sampleSet.add("5");
@ -56,24 +57,25 @@ public abstract class AddRemoveStringSetTest<SetType extends CrdtAddRemoveSet<St
}
@Test
public void abstractSetConstructorTest(){
public void abstractSetConstructorTest() {
Assert.assertEquals(construct(sampleSet).value(), sampleSet);
}
@Test
public void abstractStressWithSetTest(){
public void abstractStressWithSetTest() {
Set<String> hashSet = new HashSet<>();
SetType set = construct();
for (int it = 0; it < 40; it++){
for (int it = 0; it < 40; it++) {
SetType newSet;
if (it % 5 == 1){
//deleting existing
String forDelete = hashSet.stream().skip((long) (hashSet.size() * Math.random())).findFirst().get();
if (it % 5 == 1) {
// deleting existing
String forDelete =
hashSet.stream().skip((long) (hashSet.size() * Math.random())).findFirst().get();
newSet = set.remove(forDelete);
Assert.assertEquals(set.value(), hashSet); // check old version is immutable
hashSet.remove(forDelete);
} else {
//adding
// adding
String forAdd = String.valueOf((int) (10000 * Math.random()));
newSet = set.add(forAdd);
Assert.assertEquals(set.value(), hashSet); // check old version is immutable
@ -85,7 +87,7 @@ public abstract class AddRemoveStringSetTest<SetType extends CrdtAddRemoveSet<St
}
@Test
public void abstractEqualsTest(){
public void abstractEqualsTest() {
SetType set = construct(sampleSet);
Assert.assertFalse(set.equals(sampleSet));
SetType newSet = set.add("25");
@ -95,7 +97,7 @@ public abstract class AddRemoveStringSetTest<SetType extends CrdtAddRemoveSet<St
}
@Test
public void abstractRemoveMissingTest(){
public void abstractRemoveMissingTest() {
SetType set = construct(sampleSet);
set = set.add("25");
set = set.remove("25");
@ -107,15 +109,16 @@ public abstract class AddRemoveStringSetTest<SetType extends CrdtAddRemoveSet<St
}
@Test
public void abstractStressMergeTest(){
// in one-process context, add, remove and merge operations of lww are equal to operations of Set
public void abstractStressMergeTest() {
// in one-process context, add, remove and merge operations of lww are equal to operations of
// Set
// we've already checked it. Now just check merge
Set<String> hashSet1 = new HashSet<>(), hashSet2 = new HashSet<>();
SetType set1 = construct(), set2 = construct();
for (int it = 0; it < 100; it++){
for (int it = 0; it < 100; it++) {
String forAdd = String.valueOf((int) (10000 * Math.random()));
if (it % 2 == 0){
if (it % 2 == 0) {
hashSet1.add(forAdd);
set1 = set1.add(forAdd);
} else {
@ -125,12 +128,13 @@ public abstract class AddRemoveStringSetTest<SetType extends CrdtAddRemoveSet<St
}
Assert.assertEquals(set1.value(), hashSet1);
Assert.assertEquals(set2.value(), hashSet2);
Set<String> mergedSet = Stream.concat(hashSet1.stream(), hashSet2.stream()).collect(Collectors.toSet());
Set<String> mergedSet =
Stream.concat(hashSet1.stream(), hashSet2.stream()).collect(Collectors.toSet());
Assert.assertEquals(set1.merge(set2).value(), mergedSet);
}
@Test
public void abstractOptimizeTest(){
public void abstractOptimizeTest() {
Assert.assertEquals(construct(sampleSet).value(), sampleSet);
Assert.assertEquals(construct(sampleSet).optimize().value(), sampleSet);
}

5
gossip-base/src/test/java/org/apache/gossip/crdt/GrowOnlyCounterTest.java
View File

@ -17,11 +17,10 @@
*/
package org.apache.gossip.crdt;
import org.junit.Assert;
import org.junit.Test;
import java.util.HashMap;
import java.util.Map;
import org.junit.Assert;
import org.junit.Test;
public class GrowOnlyCounterTest {

7
gossip-base/src/test/java/org/apache/gossip/crdt/GrowOnlySetTest.java
View File

@ -27,12 +27,13 @@ public class GrowOnlySetTest {
@SuppressWarnings("rawtypes")
@Test
public void mergeTest(){
public void mergeTest() {
ConcurrentHashMap<String, Crdt> a = new ConcurrentHashMap<>();
GrowOnlySet<String> gset = new GrowOnlySet<>(Arrays.asList("a", "b"));
Assert.assertEquals(gset, a.merge("a", gset, new CrdtBiFunctionMerge()));
GrowOnlySet<String> over = new GrowOnlySet<>(Arrays.asList("b", "d"));
Assert.assertEquals(new GrowOnlySet<>(Arrays.asList("a", "b", "d")),
a.merge("a", over, CrdtBiFunctionMerge::applyStatic));
Assert.assertEquals(
new GrowOnlySet<>(Arrays.asList("a", "b", "d")),
a.merge("a", over, CrdtBiFunctionMerge::applyStatic));
}
}

15
gossip-base/src/test/java/org/apache/gossip/crdt/LwwSetTest.java
View File

@ -28,18 +28,18 @@ import java.util.Map;
import java.util.Set;
public class LwwSetTest extends AddRemoveStringSetTest<LwwSet<String>> {
static private Clock clock = new SystemClock();
private static Clock clock = new SystemClock();
LwwSet<String> construct(Set<String> set){
LwwSet<String> construct(Set<String> set) {
return new LwwSet<>(set);
}
LwwSet<String> construct(){
LwwSet<String> construct() {
return new LwwSet<>();
}
@Test
public void valueTest(){
public void valueTest() {
Map<Character, LwwSet.Timestamps> map = new HashMap<>();
map.put('a', new LwwSet.Timestamps(1, 0));
map.put('b', new LwwSet.Timestamps(1, 2));
@ -52,14 +52,15 @@ public class LwwSetTest extends AddRemoveStringSetTest<LwwSet<String>> {
}
@Test
public void fakeTimeMergeTest(){
// try to create LWWSet with time from future (simulate other process with its own clock) and validate result
public void fakeTimeMergeTest() {
// try to create LWWSet with time from future (simulate other process with its own clock) and
// validate result
// check remove from the future
Map<Integer, LwwSet.Timestamps> map = new HashMap<>();
map.put(25, new LwwSet.Timestamps(clock.nanoTime(), Long.MAX_VALUE));
LwwSet<Integer> lww = new LwwSet<>(map);
Assert.assertEquals(lww, new LwwSet<Integer>());
//create new LWWSet with element 25, and merge with other LWW which has remove in future
// create new LWWSet with element 25, and merge with other LWW which has remove in future
Assert.assertEquals(new LwwSet<>(25).merge(lww), new LwwSet<Integer>());
// add in future

5
gossip-base/src/test/java/org/apache/gossip/crdt/MaxChangeSetTest.java
View File

@ -17,13 +17,12 @@
*/
package org.apache.gossip.crdt;
import org.junit.Assert;
import org.junit.Test;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.junit.Assert;
import org.junit.Test;
public class MaxChangeSetTest extends AddRemoveStringSetTest<MaxChangeSet<String>> {
MaxChangeSet<String> construct(Set<String> set){

5
gossip-base/src/test/java/org/apache/gossip/crdt/OrSetTest.java
View File

@ -17,13 +17,12 @@
*/
package org.apache.gossip.crdt;
import org.junit.Assert;
import org.junit.Test;
import java.util.Arrays;
import java.util.Set;
import java.util.SortedSet;
import java.util.TreeSet;
import org.junit.Assert;
import org.junit.Test;
public class OrSetTest extends AddRemoveStringSetTest<OrSet<String>> {
OrSet<String> construct(){

1
gossip-base/src/test/java/org/apache/gossip/crdt/PNCounterTest.java
View File

@ -133,5 +133,4 @@ public class PNCounterTest {
counter2 = counter2.merge(counter3);
Assert.assertEquals(1, (long) counter3.value());
}
}

29
gossip-base/src/test/java/org/apache/gossip/crdt/TwoPhaseSetTest.java
View File

@ -30,7 +30,7 @@ public class TwoPhaseSetTest {
private Set<String> sampleSet;
@Before
public void setup(){
public void setup() {
sampleSet = new HashSet<>();
sampleSet.add("a");
sampleSet.add("b");
@ -38,12 +38,12 @@ public class TwoPhaseSetTest {
}
@Test
public void setConstructorTest(){
public void setConstructorTest() {
Assert.assertEquals(new TwoPhaseSet<>(sampleSet).value(), sampleSet);
}
@Test
public void valueTest(){
public void valueTest() {
Set<Character> added = new HashSet<>();
added.add('a');
added.add('b');
@ -53,7 +53,7 @@ public class TwoPhaseSetTest {
}
@Test
public void optimizeTest(){
public void optimizeTest() {
TwoPhaseSet<String> set = new TwoPhaseSet<>(sampleSet);
set = set.remove("b");
Assert.assertEquals(set.optimize(), set);
@ -62,7 +62,7 @@ public class TwoPhaseSetTest {
}
@Test
public void immutabilityTest(){
public void immutabilityTest() {
TwoPhaseSet<String> set = new TwoPhaseSet<>(sampleSet);
TwoPhaseSet<String> newSet = set.remove("b");
Assert.assertNotEquals(set, newSet);
@ -70,12 +70,13 @@ public class TwoPhaseSetTest {
}
@Test
public void removeMissingAddExistingLimitsTest(){
BiConsumer<TwoPhaseSet<?>, TwoPhaseSet<?>> checkInternals = (f, s) -> {
Assert.assertEquals(s, f);
Assert.assertEquals(s.getRemoved(), f.getRemoved());
Assert.assertEquals(s.getAdded(), f.getAdded());
};
public void removeMissingAddExistingLimitsTest() {
BiConsumer<TwoPhaseSet<?>, TwoPhaseSet<?>> checkInternals =
(f, s) -> {
Assert.assertEquals(s, f);
Assert.assertEquals(s.getRemoved(), f.getRemoved());
Assert.assertEquals(s.getAdded(), f.getAdded());
};
TwoPhaseSet<String> set = new TwoPhaseSet<>(sampleSet);
// remove missing
checkInternals.accept(set, set.remove("e"));
@ -83,11 +84,13 @@ public class TwoPhaseSetTest {
checkInternals.accept(set, set.add("a"));
// limits
TwoPhaseSet<String> newSet = set.remove("a"); // allow this remove
Assert.assertEquals(newSet.add("a"), new TwoPhaseSet<>("b", "d")); // discard this add, "a" was added and removed
Assert.assertEquals(
newSet.add("a"),
new TwoPhaseSet<>("b", "d")); // discard this add, "a" was added and removed
}
@Test
public void mergeTest(){
public void mergeTest() {
TwoPhaseSet<String> f = new TwoPhaseSet<>(sampleSet);
TwoPhaseSet<String> s = new TwoPhaseSet<>("a", "c");
s = s.remove("a");

73
gossip-base/src/test/java/org/apache/gossip/event/data/DataEventManagerTest.java
View File

@ -21,13 +21,10 @@ import com.codahale.metrics.MetricRegistry;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.platform.runner.JUnitPlatform;
import org.junit.runner.RunWith;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
@RunWith(JUnitPlatform.class)
public class DataEventManagerTest {
private static Semaphore semaphore;
@ -45,8 +42,7 @@ public class DataEventManagerTest {
public void perNodeDataEventHandlerAddRemoveTest() {
DataEventManager eventManager = new DataEventManager(new MetricRegistry());
UpdateNodeDataEventHandler nodeDataEventHandler = (nodeId, key, oldValue, newValue) -> {
};
UpdateNodeDataEventHandler nodeDataEventHandler = (nodeId, key, oldValue, newValue) -> {};
eventManager.registerPerNodeDataSubscriber(nodeDataEventHandler);
Assert.assertEquals(1, eventManager.getPerNodeSubscribersSize());
@ -61,14 +57,15 @@ public class DataEventManagerTest {
resetData();
// A new subscriber "Juliet" is like to notified when per node data change for the key "Romeo"
UpdateNodeDataEventHandler juliet = (nodeId, key, oldValue, newValue) -> {
if(!key.equals("Romeo")) return;
receivedNodeId = nodeId;
receivedKey = key;
receivedNewValue = newValue;
receivedOldValue = oldValue;
semaphore.release();
};
UpdateNodeDataEventHandler juliet =
(nodeId, key, oldValue, newValue) -> {
if (!key.equals("Romeo")) return;
receivedNodeId = nodeId;
receivedKey = key;
receivedNewValue = newValue;
receivedOldValue = oldValue;
semaphore.release();
};
// Juliet register with eventManager
eventManager.registerPerNodeDataSubscriber(juliet);
// Romeo is going to sleep after having dinner
@ -88,14 +85,12 @@ public class DataEventManagerTest {
public void sharedDataEventHandlerAddRemoveTest() {
DataEventManager eventManager = new DataEventManager(new MetricRegistry());
UpdateSharedDataEventHandler sharedDataEventHandler = (key, oldValue, newValue) -> {
UpdateSharedDataEventHandler sharedDataEventHandler = (key, oldValue, newValue) -> {};
};
eventManager.registerSharedDataSubscriber(sharedDataEventHandler);
Assert.assertEquals(1, eventManager.getSharedDataSubscribersSize());
eventManager.unregisterSharedDataSubscriber(sharedDataEventHandler);
Assert.assertEquals(0, eventManager.getSharedDataSubscribersSize());
}
// Test whether the shared data events are fired
@ -105,13 +100,14 @@ public class DataEventManagerTest {
resetData();
// A new subscriber "Alice" is like to notified when shared data change for the key "technology"
UpdateSharedDataEventHandler alice = (key, oldValue, newValue) -> {
if(!key.equals("technology")) return;
receivedKey = key;
receivedNewValue = newValue;
receivedOldValue = oldValue;
semaphore.release();
};
UpdateSharedDataEventHandler alice =
(key, oldValue, newValue) -> {
if (!key.equals("technology")) return;
receivedKey = key;
receivedNewValue = newValue;
receivedOldValue = oldValue;
semaphore.release();
};
// Alice register with eventManager
eventManager.registerSharedDataSubscriber(alice);
@ -134,26 +130,26 @@ public class DataEventManagerTest {
DataEventManager eventManager = new DataEventManager(registry);
UpdateNodeDataEventHandler nodeDataEventHandler = (nodeId, key, oldValue, newValue) -> {
};
UpdateNodeDataEventHandler nodeDataEventHandler = (nodeId, key, oldValue, newValue) -> {};
UpdateSharedDataEventHandler sharedDataEventHandler = (key, oldValue, newValue) -> {
};
UpdateSharedDataEventHandler sharedDataEventHandler = (key, oldValue, newValue) -> {};
eventManager.registerPerNodeDataSubscriber(nodeDataEventHandler);
eventManager.registerSharedDataSubscriber(sharedDataEventHandler);
Assert.assertEquals(1,
registry.getGauges().get(DataEventConstants.PER_NODE_DATA_SUBSCRIBERS_SIZE).getValue());
Assert.assertEquals(0,
registry.getGauges().get(DataEventConstants.PER_NODE_DATA_SUBSCRIBERS_QUEUE_SIZE)
.getValue());
Assert.assertEquals(1,
registry.getGauges().get(DataEventConstants.SHARED_DATA_SUBSCRIBERS_SIZE).getValue());
Assert.assertEquals(0,
registry.getGauges().get(DataEventConstants.SHARED_DATA_SUBSCRIBERS_QUEUE_SIZE)
.getValue());
Assert.assertEquals(
1, registry.getGauges().get(DataEventConstants.PER_NODE_DATA_SUBSCRIBERS_SIZE).getValue());
Assert.assertEquals(
0,
registry
.getGauges()
.get(DataEventConstants.PER_NODE_DATA_SUBSCRIBERS_QUEUE_SIZE)
.getValue());
Assert.assertEquals(
1, registry.getGauges().get(DataEventConstants.SHARED_DATA_SUBSCRIBERS_SIZE).getValue());
Assert.assertEquals(
0,
registry.getGauges().get(DataEventConstants.SHARED_DATA_SUBSCRIBERS_QUEUE_SIZE).getValue());
}
private void resetData() {
@ -162,5 +158,4 @@ public class DataEventManagerTest {
receivedNewValue = null;
receivedOldValue = null;
}
}

15
gossip-base/src/test/java/org/apache/gossip/lock/vote/MajorityVoteTest.java
View File

@ -19,14 +19,11 @@ package org.apache.gossip.lock.vote;
import org.junit.Assert;
import org.junit.Test;
import org.junit.platform.runner.JUnitPlatform;
import org.junit.runner.RunWith;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
@RunWith(JUnitPlatform.class)
public class MajorityVoteTest {
@Test
@ -45,7 +42,6 @@ public class MajorityVoteTest {
Assert.assertTrue(result.value().get("1").getVotes().get("2").getVoteValue());
Assert.assertTrue(!result.value().get("3").getVotes().get("4").getVoteValue());
}
@Test
@ -64,7 +60,6 @@ public class MajorityVoteTest {
Assert.assertTrue(result.value().get("1").getVotes().get("2").getVoteValue());
Assert.assertTrue(!result.value().get("1").getVotes().get("4").getVoteValue());
}
@Test
@ -75,8 +70,8 @@ public class MajorityVoteTest {
MajorityVote first = new MajorityVote(voteCandidateMap1);
Map<String, VoteCandidate> voteCandidateMap2 = new HashMap<>();
VoteCandidate candidateB = new VoteCandidate("1", "key1",
generateVotes(2, 4, true, false, true));
VoteCandidate candidateB =
new VoteCandidate("1", "key1", generateVotes(2, 4, true, false, true));
voteCandidateMap2.put("1", candidateB);
MajorityVote second = new MajorityVote(voteCandidateMap2);
@ -92,10 +87,10 @@ public class MajorityVoteTest {
}
for (int i = startingNodeId; i <= endNodeId; i++) {
String nodeId = i + "";
voteMap.put(nodeId, new Vote(nodeId, votes[i - startingNodeId], false, new ArrayList<>(),
new ArrayList<>()));
voteMap.put(
nodeId,
new Vote(nodeId, votes[i - startingNodeId], false, new ArrayList<>(), new ArrayList<>()));
}
return voteMap;
}
}

31
gossip-base/src/test/java/org/apache/gossip/manager/DataReaperTest.java
View File

@ -42,8 +42,14 @@ public class DataReaperTest {
settings.setPersistDataState(false);
settings.setTransportManagerClass("org.apache.gossip.transport.UnitTestTransportManager");
settings.setProtocolManagerClass("org.apache.gossip.protocol.UnitTestProtocolManager");
GossipManager gm = GossipManagerBuilder.newBuilder().cluster("abc").gossipSettings(settings)
.id(myId).uri(URI.create("udp://localhost:6000")).registry(registry).build();
GossipManager gm =
GossipManagerBuilder.newBuilder()
.cluster("abc")
.gossipSettings(settings)
.id(myId)
.uri(URI.create("udp://localhost:6000"))
.registry(registry)
.build();
gm.init();
gm.gossipPerNodeData(perNodeDatum(key, value));
gm.gossipSharedData(sharedDatum(key, value));
@ -54,14 +60,16 @@ public class DataReaperTest {
gm.shutdown();
}
private void assertDataIsAtCorrectValue(GossipManager gm){
private void assertDataIsAtCorrectValue(GossipManager gm) {
Assert.assertEquals(value, gm.findPerNodeGossipData(myId, key).getPayload());
Assert.assertEquals(1, registry.getGauges().get(GossipCoreConstants.PER_NODE_DATA_SIZE).getValue());
Assert.assertEquals(
1, registry.getGauges().get(GossipCoreConstants.PER_NODE_DATA_SIZE).getValue());
Assert.assertEquals(value, gm.findSharedGossipData(key).getPayload());
Assert.assertEquals(1, registry.getGauges().get(GossipCoreConstants.SHARED_DATA_SIZE).getValue());
Assert.assertEquals(
1, registry.getGauges().get(GossipCoreConstants.SHARED_DATA_SIZE).getValue());
}
private void assertDataIsRemoved(GossipManager gm){
private void assertDataIsRemoved(GossipManager gm) {
TUnit.assertThat(() -> gm.findPerNodeGossipData(myId, key)).equals(null);
TUnit.assertThat(() -> gm.findSharedGossipData(key)).equals(null);
}
@ -92,8 +100,14 @@ public class DataReaperTest {
GossipSettings settings = new GossipSettings();
settings.setTransportManagerClass("org.apache.gossip.transport.UnitTestTransportManager");
settings.setProtocolManagerClass("org.apache.gossip.protocol.UnitTestProtocolManager");
GossipManager gm = GossipManagerBuilder.newBuilder().cluster("abc").gossipSettings(settings)
.id(myId).uri(URI.create("udp://localhost:7000")).registry(registry).build();
GossipManager gm =
GossipManagerBuilder.newBuilder()
.cluster("abc")
.gossipSettings(settings)
.id(myId)
.uri(URI.create("udp://localhost:7000"))
.registry(registry)
.build();
gm.init();
PerNodeDataMessage before = perNodeDatum(key, value);
PerNodeDataMessage after = perNodeDatum(key, "b");
@ -104,5 +118,4 @@ public class DataReaperTest {
Assert.assertEquals(value, gm.findPerNodeGossipData(myId, key).getPayload());
gm.shutdown();
}
}

99
gossip-base/src/test/java/org/apache/gossip/manager/GossipManagerBuilderTest.java
View File

@ -17,97 +17,108 @@
*/
package org.apache.gossip.manager;
import com.codahale.metrics.MetricRegistry;
import org.apache.gossip.Member;
import org.apache.gossip.GossipSettings;
import org.apache.gossip.LocalMember;
import org.apache.gossip.manager.handlers.MessageHandler;
import org.apache.gossip.manager.handlers.ResponseHandler;
import org.apache.gossip.manager.handlers.TypedMessageHandler;
import org.junit.Assert;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.platform.runner.JUnitPlatform;
import org.junit.runner.RunWith;
import static org.junit.jupiter.api.Assertions.*;
import javax.xml.ws.Response;
import com.codahale.metrics.MetricRegistry;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.gossip.GossipSettings;
import org.apache.gossip.LocalMember;
import org.apache.gossip.Member;
import org.apache.gossip.manager.handlers.MessageHandler;
import org.apache.gossip.manager.handlers.ResponseHandler;
import org.apache.gossip.manager.handlers.TypedMessageHandlerWrapper;
import org.apache.gossip.model.Response;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.expectThrows;
@RunWith(JUnitPlatform.class)
public class GossipManagerBuilderTest {
private GossipManagerBuilder.ManagerBuilder builder;
@BeforeEach
public void setup() throws Exception {
builder = GossipManagerBuilder.newBuilder()
.id("id")
.cluster("aCluster")
.uri(new URI("udp://localhost:2000"))
.gossipSettings(new GossipSettings());
builder =
GossipManagerBuilder.newBuilder()
.id("id")
.cluster("aCluster")
.uri(new URI("udp://localhost:2000"))
.gossipSettings(new GossipSettings());
}
@Test
public void idShouldNotBeNull() {
expectThrows(IllegalArgumentException.class,() -> {
GossipManagerBuilder.newBuilder().cluster("aCluster").build();
});
assertThrows(
IllegalArgumentException.class,
() -> {
GossipManagerBuilder.newBuilder().cluster("aCluster").build();
});
}
@Test
public void clusterShouldNotBeNull() {
expectThrows(IllegalArgumentException.class,() -> {
assertThrows(
IllegalArgumentException.class,
() -> {
GossipManagerBuilder.newBuilder().id("id").build();
});
});
}
@Test
public void settingsShouldNotBeNull() {
expectThrows(IllegalArgumentException.class,() -> {
assertThrows(
IllegalArgumentException.class,
() -> {
GossipManagerBuilder.newBuilder().id("id").cluster("aCluster").build();
});
});
}
@Test
public void createMembersListIfNull() throws URISyntaxException {
GossipManager gossipManager = builder.gossipMembers(null).registry(new MetricRegistry()).build();
public void createMembersListIfNull() {
GossipManager gossipManager =
builder.gossipMembers(null).registry(new MetricRegistry()).build();
assertNotNull(gossipManager.getLiveMembers());
}
@Test
public void createDefaultMessageHandlerIfNull() throws URISyntaxException {
GossipManager gossipManager = builder.messageHandler(null).registry(new MetricRegistry()).build();
public void createDefaultMessageHandlerIfNull() {
GossipManager gossipManager =
builder.messageHandler(null).registry(new MetricRegistry()).build();
assertNotNull(gossipManager.getMessageHandler());
}
@Test
public void testMessageHandlerKeeping() throws URISyntaxException {
MessageHandler mi = new TypedMessageHandler(Response.class, new ResponseHandler());
public void testMessageHandlerKeeping() {
MessageHandler mi = new TypedMessageHandlerWrapper(Response.class, new ResponseHandler());
GossipManager gossipManager = builder.messageHandler(mi).registry(new MetricRegistry()).build();
assertNotNull(gossipManager.getMessageHandler());
Assert.assertEquals(gossipManager.getMessageHandler(), mi);
assertEquals(gossipManager.getMessageHandler(), mi);
}
@Test
public void useMemberListIfProvided() throws URISyntaxException {
LocalMember member = new LocalMember(
"aCluster", new URI("udp://localhost:2000"), "aGossipMember",
System.nanoTime(), new HashMap<String, String>(), 1000, 1, "exponential");
LocalMember member =
new LocalMember(
"aCluster",
new URI("udp://localhost:2000"),
"aGossipMember",
System.nanoTime(),
new HashMap<String, String>(),
1000,
1,
"exponential");
List<Member> memberList = new ArrayList<>();
memberList.add(member);
GossipManager gossipManager = builder
.uri(new URI("udp://localhost:8000"))
.gossipMembers(memberList).registry(new MetricRegistry()).build();
GossipManager gossipManager =
builder
.uri(new URI("udp://localhost:8000"))
.gossipMembers(memberList)
.registry(new MetricRegistry())
.build();
assertEquals(1, gossipManager.getDeadMembers().size());
assertEquals(member.getId(), gossipManager.getDeadMembers().get(0).getId());
}
}

27
gossip-base/src/test/java/org/apache/gossip/manager/RingPersistenceTest.java
View File

@ -30,7 +30,8 @@ import org.junit.Test;
public class RingPersistenceTest {
@Test
public void givenThatRingIsPersisted() throws UnknownHostException, InterruptedException, URISyntaxException {
public void givenThatRingIsPersisted()
throws UnknownHostException, InterruptedException, URISyntaxException {
GossipSettings settings = new GossipSettings();
File f = aGossiperPersists(settings);
Assert.assertTrue(f.exists());
@ -38,27 +39,33 @@ public class RingPersistenceTest {
f.delete();
}
private File aGossiperPersists(GossipSettings settings) throws UnknownHostException, InterruptedException, URISyntaxException {
GossipManager gossipService = GossipManagerBuilder.newBuilder()
private File aGossiperPersists(GossipSettings settings)
throws UnknownHostException, InterruptedException, URISyntaxException {
GossipManager gossipService =
GossipManagerBuilder.newBuilder()
.cluster("a")
.uri(new URI("udp://" + "127.0.0.1" + ":" + (29000 + 1)))
.id("1")
.gossipSettings(settings)
.gossipMembers(
Arrays.asList(
new RemoteMember("a", new URI("udp://" + "127.0.0.1" + ":" + (29000 + 0)), "0"),
new RemoteMember("a", new URI("udp://" + "127.0.0.1" + ":" + (29000 + 2)), "2"))).build();
Arrays.asList(
new RemoteMember("a", new URI("udp://" + "127.0.0.1" + ":" + (29000 + 0)), "0"),
new RemoteMember(
"a", new URI("udp://" + "127.0.0.1" + ":" + (29000 + 2)), "2")))
.build();
gossipService.getRingState().writeToDisk();
return GossipManager.buildRingStatePath(gossipService);
}
private void aNewInstanceGetsRingInfo(GossipSettings settings) throws UnknownHostException, InterruptedException, URISyntaxException {
GossipManager gossipService2 = GossipManagerBuilder.newBuilder()
private void aNewInstanceGetsRingInfo(GossipSettings settings)
throws UnknownHostException, InterruptedException, URISyntaxException {
GossipManager gossipService2 =
GossipManagerBuilder.newBuilder()
.cluster("a")
.uri(new URI("udp://" + "127.0.0.1" + ":" + (29000 + 1)))
.id("1")
.gossipSettings(settings).build();
.gossipSettings(settings)
.build();
Assert.assertEquals(2, gossipService2.getMembers().size());
}
}

Some files were not shown because too many files have changed in this diff Show More