Better socket cleanup for ActiveThread

src/test/java/io/teknek/gossip/ShutdownDeadtimeTest.java

@@ -0,0 +1,103 @@
+package io.teknek.gossip;
+
+import io.teknek.tunit.TUnit;
+
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+import java.util.concurrent.Callable;
+import java.util.concurrent.TimeUnit;
+
+
+import org.apache.log4j.Logger;
+import org.junit.Ignore;
+import org.junit.Test;
+
+import com.google.code.gossip.GossipMember;
+import com.google.code.gossip.GossipService;
+import com.google.code.gossip.GossipSettings;
+import com.google.code.gossip.RemoteGossipMember;
+import com.google.code.gossip.event.GossipListener;
+import com.google.code.gossip.event.GossipState;
+
+public class ShutdownDeadtimeTest {
+
+  private static final Logger log = Logger.getLogger(ShutdownDeadtimeTest.class );
+  //@Test
+  @Ignore
+  public void DeadNodesDoNotComeAliveAgain() throws InterruptedException, UnknownHostException {
+      GossipSettings settings = new GossipSettings(10,10000);
+      
+      log.info( "Adding seed nodes" );
+      int seedNodes = 3;
+      List<GossipMember> startupMembers = new ArrayList<>();
+      for (int i = 1; i < seedNodes + 1; ++i) {
+          startupMembers.add(new RemoteGossipMember("127.0.0.1", 50000 + i, i + ""));
+      }
+
+      log.info( "Adding clients" );
+      final List<GossipService> clients = new ArrayList<>();
+      final int clusterMembers = 5;
+      for (int i = 1; i < clusterMembers+1; ++i) {
+          final int j = i;
+          GossipService gossipService = new GossipService("127.0.0.1", 50000 + i, i + "",
+                  startupMembers, settings,
+                  new GossipListener(){
+                      @Override
+                      public void gossipEvent(GossipMember member, GossipState state) {
+                          System.out.println(System.currentTimeMillis() + " Member "+j + " reports "+ member+" "+ state);
+                      }
+                  });
+          clients.add(gossipService);
+          gossipService.start();
+      }
+      TUnit.assertThat(new Callable<Integer> (){
+          public Integer call() throws Exception {
+              int total = 0;
+              for (int i = 0; i < clusterMembers; ++i) {
+                  total += clients.get(i).get_gossipManager().getMemberList().size();
+              }
+              return total;
+          }}).afterWaitingAtMost(10, TimeUnit.SECONDS).isEqualTo(20);
+
+      // shutdown one client and verify that one client is lost.
+      Random r = new Random();
+      int randomClientId = r.nextInt(clusterMembers);
+      log.info( "shutting down " + randomClientId );
+      final int shutdownPort = clients.get(randomClientId).get_gossipManager().getMyself().getPort();
+      final String shutdownId = clients.get(randomClientId).get_gossipManager().getMyself().getId();
+      clients.get(randomClientId).shutdown();
+      TUnit.assertThat(new Callable<Integer> (){
+          public Integer call() throws Exception {
+              int total = 0;
+              for (int i = 0; i < clusterMembers; ++i) {
+                  total += clients.get(i).get_gossipManager().getMemberList().size();
+              }
+              return total;
+          }}).afterWaitingAtMost(10, TimeUnit.SECONDS).isEqualTo(16);
+
+      // start client again
+      GossipService gossipService = new GossipService("127.0.0.1", shutdownPort, shutdownId + "",
+              startupMembers, settings,
+              new GossipListener(){
+                  @Override
+                  public void gossipEvent(GossipMember member, GossipState state) {
+                      //System.out.println("revived " + member+" "+ state);
+                  }
+              });
+      clients.add(gossipService);
+      gossipService.start();
+
+      // verify that the client is alive again for every node
+      TUnit.assertThat(new Callable<Integer> (){
+          public Integer call() throws Exception {
+              int total = 0;
+              for (int i = 0; i < clusterMembers; ++i) {
+                  total += clients.get(i).get_gossipManager().getMemberList().size();
+              }
+              return total;
+          }}).afterWaitingAtMost(70, TimeUnit.SECONDS).isEqualTo(20);
+      
+  }
+}