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GOSSIP-86 Examples in separate module - Added Readme.

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This commit is contained in:
Terry Weymouth
2017-05-29 09:16:32 -04:00
parent c62ebaf9b6
commit 9c9d96e564
10 changed files with 414 additions and 41 deletions
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62
gossip-base/src/main/java/org/apache/gossip/examples/StandAloneDatacenterAndRack.java
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@ -1,62 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* 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.
*/
package org.apache.gossip.examples;
import java.net.URI;
import java.net.UnknownHostException;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import org.apache.gossip.GossipSettings;
import org.apache.gossip.RemoteMember;
import org.apache.gossip.manager.DatacenterRackAwareActiveGossiper;
import org.apache.gossip.manager.GossipManager;
import org.apache.gossip.manager.GossipManagerBuilder;
public class StandAloneDatacenterAndRack {
public static void main (String [] args) throws UnknownHostException, InterruptedException {
GossipSettings s = new GossipSettings();
s.setWindowSize(1000);
s.setGossipInterval(100);
s.setActiveGossipClass(DatacenterRackAwareActiveGossiper.class.getName());
Map<String, String> gossipProps = new HashMap<>();
gossipProps.put("sameRackGossipIntervalMs", "2000");
gossipProps.put("differentDatacenterGossipIntervalMs", "10000");
s.setActiveGossipProperties(gossipProps);
Map<String, String> props = new HashMap<>();
props.put(DatacenterRackAwareActiveGossiper.DATACENTER, args[4]);
props.put(DatacenterRackAwareActiveGossiper.RACK, args[5]);
GossipManager manager = GossipManagerBuilder.newBuilder()
.cluster("mycluster")
.uri(URI.create(args[0]))
.id(args[1])
.gossipSettings(s)
.gossipMembers(Arrays.asList(new RemoteMember("mycluster", URI.create(args[2]), args[3])))
.properties(props)
.build();
manager.init();
while (true){
System.out.println("Live: " + manager.getLiveMembers());
System.out.println("Dead: " + manager.getDeadMembers());
Thread.sleep(2000);
}
}
}

47
gossip-base/src/main/java/org/apache/gossip/examples/StandAloneNode.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* 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.
*/
package org.apache.gossip.examples;
import java.net.URI;
import java.net.UnknownHostException;
import java.util.Arrays;
import org.apache.gossip.GossipSettings;
import org.apache.gossip.RemoteMember;
import org.apache.gossip.manager.GossipManager;
import org.apache.gossip.manager.GossipManagerBuilder;
public class StandAloneNode {
public static void main (String [] args) throws UnknownHostException, InterruptedException{
GossipSettings s = new GossipSettings();
s.setWindowSize(1000);
s.setGossipInterval(100);
GossipManager gossipService = GossipManagerBuilder.newBuilder()
.cluster("mycluster")
.uri(URI.create(args[0]))
.id(args[1])
.gossipMembers(Arrays.asList( new RemoteMember("mycluster", URI.create(args[2]), args[3])))
.gossipSettings(s)
.build();
gossipService.init();
while (true){
System.out.println("Live: " + gossipService.getLiveMembers());
System.out.println("Dead: " + gossipService.getDeadMembers());
Thread.sleep(2000);
}
}
}

115
gossip-base/src/main/java/org/apache/gossip/examples/StandAloneNodeCrdtOrSet.java
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@ -1,115 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* 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.
*/
package org.apache.gossip.examples;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URI;
import java.util.Arrays;
import org.apache.gossip.GossipSettings;
import org.apache.gossip.RemoteMember;
import org.apache.gossip.crdt.GrowOnlyCounter;
import org.apache.gossip.crdt.OrSet;
import org.apache.gossip.manager.GossipManager;
import org.apache.gossip.manager.GossipManagerBuilder;
import org.apache.gossip.model.SharedDataMessage;
public class StandAloneNodeCrdtOrSet {
public static void main (String [] args) throws InterruptedException, IOException{
GossipSettings s = new GossipSettings();
s.setWindowSize(1000);
s.setGossipInterval(100);
GossipManager gossipService = GossipManagerBuilder.newBuilder()
.cluster("mycluster")
.uri(URI.create(args[0]))
.id(args[1])
.gossipMembers(Arrays.asList( new RemoteMember("mycluster", URI.create(args[2]), args[3])))
.gossipSettings(s)
.build();
gossipService.init();
new Thread(() -> {
while (true){
System.out.println("Live: " + gossipService.getLiveMembers());
System.out.println("Dead: " + gossipService.getDeadMembers());
System.out.println("---------- " + (gossipService.findCrdt("abc") == null ? "":
gossipService.findCrdt("abc").value()));
System.out.println("********** " + gossipService.findCrdt("abc"));
System.out.println("^^^^^^^^^^ " + (gossipService.findCrdt("def") == null ? "":
gossipService.findCrdt("def").value()));
System.out.println("$$$$$$$$$$ " + gossipService.findCrdt("def"));
try {
Thread.sleep(2000);
} catch (Exception e) {}
}
}).start();
String line = null;
try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))){
while ( (line = br.readLine()) != null){
System.out.println(line);
char op = line.charAt(0);
String val = line.substring(2);
if (op == 'a'){
addData(val, gossipService);
} else if (op == 'r') {
removeData(val, gossipService);
} else if (op == 'g'){
gcount(val, gossipService);
}
}
}
}
private static void gcount(String val, GossipManager gossipManager){
GrowOnlyCounter c = (GrowOnlyCounter) gossipManager.findCrdt("def");
Long l = Long.valueOf(val);
if (c == null){
c = new GrowOnlyCounter(new GrowOnlyCounter.Builder(gossipManager).increment((l)));
} else {
c = new GrowOnlyCounter(c, new GrowOnlyCounter.Builder(gossipManager).increment((l)));
}
SharedDataMessage m = new SharedDataMessage();
m.setExpireAt(Long.MAX_VALUE);
m.setKey("def");
m.setPayload(c);
m.setTimestamp(System.currentTimeMillis());
gossipManager.merge(m);
}
private static void removeData(String val, GossipManager gossipService){
@SuppressWarnings("unchecked")
OrSet<String> s = (OrSet<String>) gossipService.findCrdt("abc");
SharedDataMessage m = new SharedDataMessage();
m.setExpireAt(Long.MAX_VALUE);
m.setKey("abc");
m.setPayload(new OrSet<String>(s , new OrSet.Builder<String>().remove(val)));
m.setTimestamp(System.currentTimeMillis());
gossipService.merge(m);
}
private static void addData(String val, GossipManager gossipService){
SharedDataMessage m = new SharedDataMessage();
m.setExpireAt(Long.MAX_VALUE);
m.setKey("abc");
m.setPayload(new OrSet<String>(val));
m.setTimestamp(System.currentTimeMillis());
gossipService.merge(m);
}
}