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

Callback

Browse Source
This commit is contained in:
Edward Capriolo
2015-02-15 23:24:18 -05:00
parent a1c241b780
commit 7ce0700798
10 changed files with 63 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
src/main/java/com/google/code/gossip/GossipService.java
View File

@ -6,6 +6,7 @@ import java.net.UnknownHostException;
import java.util.ArrayList;
import org.apache.log4j.Logger;
import com.google.code.gossip.event.GossipListener;
import com.google.code.gossip.manager.GossipManager;
import com.google.code.gossip.manager.random.RandomGossipManager;
@ -30,7 +31,7 @@ public class GossipService {
UnknownHostException {
this(InetAddress.getLocalHost().getHostAddress(), startupSettings.getPort(), "",
startupSettings.getLogLevel(), startupSettings.getGossipMembers(), startupSettings
.getGossipSettings());
.getGossipSettings(), null);
}
/**
@ -41,9 +42,9 @@ public class GossipService {
* @throws UnknownHostException
*/
public GossipService(String ipAddress, int port, String id, int logLevel,
ArrayList<GossipMember> gossipMembers, GossipSettings settings)
ArrayList<GossipMember> gossipMembers, GossipSettings settings, GossipListener listener)
throws InterruptedException, UnknownHostException {
_gossipManager = new RandomGossipManager(ipAddress, port, id, settings, gossipMembers);
_gossipManager = new RandomGossipManager(ipAddress, port, id, settings, gossipMembers, listener);
}
public void start() {

7
src/main/java/com/google/code/gossip/event/GossipListener.java Normal file
View File

@ -0,0 +1,7 @@
package com.google.code.gossip.event;
import com.google.code.gossip.GossipMember;
public interface GossipListener {
void gossipEvent(GossipMember member, GossipState state);
}

10
src/main/java/com/google/code/gossip/event/GossipState.java Normal file
View File

@ -0,0 +1,10 @@
package com.google.code.gossip.event;
public enum GossipState {
UP("up"), DOWN("down");
private String state;
private GossipState(String state){
this.state = state;
}
}

2
src/main/java/com/google/code/gossip/examples/GossipExample.java
View File

@ -58,7 +58,7 @@ public class GossipExample extends Thread {
// dead list handling.
for (GossipMember member : startupMembers) {
GossipService gossipService = new GossipService(myIpAddress, member.getPort(), "",
LogLevel.DEBUG, startupMembers, settings);
LogLevel.DEBUG, startupMembers, settings, null);
clients.add(gossipService);
gossipService.start();
sleep(settings.getCleanupInterval() + 1000);

1
src/main/java/com/google/code/gossip/manager/ActiveGossipThread.java
View File

@ -1,6 +1,5 @@
package com.google.code.gossip.manager;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;

35
src/main/java/com/google/code/gossip/manager/GossipManager.java
View File

@ -20,13 +20,15 @@ import com.google.code.gossip.GossipMember;
import com.google.code.gossip.GossipService;
import com.google.code.gossip.GossipSettings;
import com.google.code.gossip.LocalGossipMember;
import com.google.code.gossip.event.GossipListener;
import com.google.code.gossip.event.GossipState;
public abstract class GossipManager extends Thread implements NotificationListener {
public static final Logger LOGGER = Logger.getLogger(GossipManager.class);
public static final int MAX_PACKET_SIZE = 102400;
private ConcurrentSkipListMap<LocalGossipMember,String> members;
private ConcurrentSkipListMap<LocalGossipMember,GossipState> members;
private LocalGossipMember _me;
private GossipSettings _settings;
private AtomicBoolean _gossipServiceRunning;
@ -35,10 +37,12 @@ public abstract class GossipManager extends Thread implements NotificationListen
private PassiveGossipThread passiveGossipThread;
private Class<? extends ActiveGossipThread> _activeGossipThreadClass;
private ActiveGossipThread activeGossipThread;
private GossipListener listener;
public GossipManager(Class<? extends PassiveGossipThread> passiveGossipThreadClass,
Class<? extends ActiveGossipThread> activeGossipThreadClass, String address, int port,
String id, GossipSettings settings, ArrayList<GossipMember> gossipMembers) {
String id, GossipSettings settings, ArrayList<GossipMember> gossipMembers,
GossipListener listener) {
_passiveGossipThreadClass = passiveGossipThreadClass;
_activeGossipThreadClass = activeGossipThreadClass;
_settings = settings;
@ -49,12 +53,13 @@ public abstract class GossipManager extends Thread implements NotificationListen
LocalGossipMember member = new LocalGossipMember(startupMember.getHost(),
startupMember.getPort(), startupMember.getId(), 0, this,
settings.getCleanupInterval());
members.put(member, "UP");
members.put(member, GossipState.UP);
GossipService.LOGGER.debug(member);
}
}
_gossipServiceRunning = new AtomicBoolean(true);
this.listener = listener;
Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
public void run() {
GossipService.LOGGER.info("Service has been shutdown...");
@ -70,17 +75,27 @@ public abstract class GossipManager extends Thread implements NotificationListen
public void handleNotification(Notification notification, Object handback) {
LocalGossipMember deadMember = (LocalGossipMember) notification.getUserData();
GossipService.LOGGER.info("Dead member detected: " + deadMember);
members.put(deadMember, "DOWN");
members.put(deadMember, GossipState.DOWN);
if (listener != null) {
listener.gossipEvent(deadMember, GossipState.DOWN);
}
}
public void createOrRevivieMember(LocalGossipMember m){
members.put(m, GossipState.UP);
if (listener != null) {
listener.gossipEvent(m, GossipState.UP);
}
}
public GossipSettings getSettings() {
return _settings;
}
public List<LocalGossipMember> getMemberList() {
List<LocalGossipMember> up = new ArrayList<>();
for (Entry<LocalGossipMember, String> entry : members.entrySet()){
if ("UP".equals(entry.getValue())){
for (Entry<LocalGossipMember, GossipState> entry : members.entrySet()){
if (GossipState.UP.equals(entry.getValue())){
up.add(entry.getKey());
}
}
@ -91,14 +106,10 @@ public abstract class GossipManager extends Thread implements NotificationListen
return _me;
}
public void createOrRevivieMember(LocalGossipMember m){
members.put(m, "UP");
}
public List<LocalGossipMember> getDeadList() {
List<LocalGossipMember> up = new ArrayList<>();
for (Entry<LocalGossipMember, String> entry : members.entrySet()){
if ("DOWN".equals(entry.getValue())){
for (Entry<LocalGossipMember, GossipState> entry : members.entrySet()){
if (GossipState.DOWN.equals(entry.getValue())){
up.add(entry.getKey());
}
}

7
src/main/java/com/google/code/gossip/manager/PassiveGossipThread.java
View File

@ -10,6 +10,7 @@ import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.log4j.Logger;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
@ -25,6 +26,8 @@ import com.google.code.gossip.RemoteGossipMember;
* determine the incoming message.
*/
abstract public class PassiveGossipThread implements Runnable {
public static final Logger LOGGER = Logger.getLogger(PassiveGossipThread.class);
/** The socket used for the passive thread of the gossip service. */
private DatagramSocket _server;
@ -107,8 +110,6 @@ abstract public class PassiveGossipThread implements Runnable {
}
}
// Merge our list with the one we just received
mergeLists(_gossipManager, senderMember, remoteGossipMembers);
} catch (JSONException e) {
GossipService.LOGGER
@ -122,7 +123,7 @@ abstract public class PassiveGossipThread implements Runnable {
}
} catch (IOException e) {
e.printStackTrace();
GossipService.LOGGER.error(e);
_keepRunning.set(false);
}
}

1
src/main/java/com/google/code/gossip/manager/random/RandomActiveGossipThread.java
View File

@ -1,6 +1,5 @@
package com.google.code.gossip.manager.random;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;

5
src/main/java/com/google/code/gossip/manager/random/RandomGossipManager.java
View File

@ -4,13 +4,14 @@ import java.util.ArrayList;
import com.google.code.gossip.GossipMember;
import com.google.code.gossip.GossipSettings;
import com.google.code.gossip.event.GossipListener;
import com.google.code.gossip.manager.GossipManager;
import com.google.code.gossip.manager.impl.OnlyProcessReceivedPassiveGossipThread;
public class RandomGossipManager extends GossipManager {
public RandomGossipManager(String address, int port, String id, GossipSettings settings,
ArrayList<GossipMember> gossipMembers) {
ArrayList<GossipMember> gossipMembers, GossipListener listener) {
super(OnlyProcessReceivedPassiveGossipThread.class, RandomActiveGossipThread.class, address,
port, id, settings, gossipMembers);
port, id, settings, gossipMembers, listener);
}
}