public void testServerEventsInPeerSystem()

in geode-core/src/distributedTest/java/org/apache/geode/management/UniversalMembershipListenerAdapterDUnitTest.java [1063:1309]
200 lines of code
8 McCabe index (conditional complexity)

  public void testServerEventsInPeerSystem() throws Exception {
    boolean[] firedSystem = new boolean[3];
    DistributedMember[] memberSystem = new DistributedMember[3];
    String[] memberIdSystem = new String[3];
    boolean[] isClientSystem = new boolean[3];

    boolean[] firedAdapter = new boolean[3];
    DistributedMember[] memberAdapter = new DistributedMember[3];
    String[] memberIdAdapter = new String[3];
    boolean[] isClientAdapter = new boolean[3];

    boolean[] firedBridge = new boolean[3];
    DistributedMember[] memberBridge = new DistributedMember[3];
    String[] memberIdBridge = new String[3];
    boolean[] isClientBridge = new boolean[3];

    boolean[] firedSystemDuplicate = new boolean[3];
    boolean[] firedAdapterDuplicate = new boolean[3];
    boolean[] firedBridgeDuplicate = new boolean[3];

    MembershipListener systemListener = new MembershipListener() {
      @Override
      public synchronized void memberJoined(MembershipEvent event) {
        firedSystemDuplicate[JOINED] = firedSystem[JOINED];
        firedSystem[JOINED] = true;
        memberSystem[JOINED] = event.getDistributedMember();
        memberIdSystem[JOINED] = event.getMemberId();
        notifyAll();
      }

      @Override
      public synchronized void memberLeft(MembershipEvent event) {
        firedSystemDuplicate[LEFT] = firedSystem[LEFT];
        firedSystem[LEFT] = true;
        memberSystem[LEFT] = event.getDistributedMember();
        memberIdSystem[LEFT] = event.getMemberId();
        notifyAll();
      }

      @Override
      public synchronized void memberCrashed(MembershipEvent event) {
        firedSystemDuplicate[CRASHED] = firedSystem[CRASHED];
        firedSystem[CRASHED] = true;
        memberSystem[CRASHED] = event.getDistributedMember();
        memberIdSystem[CRASHED] = event.getMemberId();
        notifyAll();
      }
    };

    UniversalMembershipListenerAdapter adapter = new UniversalMembershipListenerAdapter() {
      @Override
      public synchronized void memberJoined(MembershipEvent event) {
        firedAdapterDuplicate[JOINED] = firedAdapter[JOINED];
        firedAdapter[JOINED] = true;
        memberAdapter[JOINED] = event.getDistributedMember();
        memberIdAdapter[JOINED] = event.getMemberId();
        if (event instanceof AdaptedMembershipEvent) {
          isClientAdapter[JOINED] = ((AdaptedMembershipEvent) event).isClient();
        }
        notifyAll();
      }

      @Override
      public synchronized void memberLeft(MembershipEvent event) {
        firedAdapterDuplicate[LEFT] = firedAdapter[LEFT];
        firedAdapter[LEFT] = true;
        memberAdapter[LEFT] = event.getDistributedMember();
        memberIdAdapter[LEFT] = event.getMemberId();
        if (event instanceof AdaptedMembershipEvent) {
          isClientAdapter[LEFT] = ((AdaptedMembershipEvent) event).isClient();
        }
        notifyAll();
      }

      @Override
      public synchronized void memberCrashed(MembershipEvent event) {
        firedAdapterDuplicate[CRASHED] = firedAdapter[CRASHED];
        firedAdapter[CRASHED] = true;
        memberAdapter[CRASHED] = event.getDistributedMember();
        memberIdAdapter[CRASHED] = event.getMemberId();
        if (event instanceof AdaptedMembershipEvent) {
          isClientAdapter[CRASHED] = ((AdaptedMembershipEvent) event).isClient();
        }
        notifyAll();
      }
    };

    Host host = Host.getHost(0);
    VM vm0 = host.getVM(0);
    String name = getUniqueName();
    int[] ports = getRandomAvailableTCPPorts(1);
    assertThat(ports[0] != 0).isTrue();

    // create BridgeServer in controller vm...
    getSystem();
    AttributesFactory factory = new AttributesFactory();
    factory.setScope(Scope.LOCAL);
    Region region = createRegion(name, factory.create());
    assertThat(region).isNotNull();
    assertThat(getRootRegion().getSubregion(name)).isNotNull();

    ports[0] = startBridgeServer(0);
    assertThat(ports[0] != 0).isTrue();

    DistributedMember serverMember = getMemberId();
    String serverMemberId = serverMember.getId();
    Properties serverProperties = getSystem().getProperties();

    serverProperties.remove(CLUSTER_SSL_ENABLED);
    serverProperties.remove(CLUSTER_SSL_CIPHERS);
    serverProperties.remove(CLUSTER_SSL_PROTOCOLS);
    serverProperties.remove(CLUSTER_SSL_REQUIRE_AUTHENTICATION);

    InternalCache cache = getInternalCache();
    ManagementService service = ManagementService.getExistingManagementService(cache);
    // register the system listener
    service.addMembershipListener(systemListener);

    // register the universal adapter.
    adapter.registerMembershipListener(service);

    // create BridgeServer in vm0...
    SerializableCallable createPeerCache = new SerializableCallable("Create Peer Cache") {
      @Override
      public Object call() {
        getSystem(serverProperties);
        AttributesFactory factory = new AttributesFactory();
        factory.setScope(Scope.LOCAL);
        Region region = createRegion(name, factory.create());
        assertThat(region).isNotNull();
        assertThat(getRootRegion().getSubregion(name)).isNotNull();
        return basicGetSystem().getDistributedMember();
      }
    };

    DistributedMember peerMember = (DistributedMember) vm0.invoke(createPeerCache);
    String peerMemberId = peerMember.getId();

    synchronized (systemListener) {
      if (!firedSystem[JOINED]) {
        systemListener.wait(ASYNC_EVENT_WAIT_MILLIS);
      }
    }
    synchronized (adapter) {
      if (!firedAdapter[JOINED]) {
        adapter.wait(ASYNC_EVENT_WAIT_MILLIS);
      }
    }

    assertArrayFalse(firedSystemDuplicate);

    assertThat(firedSystem[JOINED]).isTrue();
    assertThat(memberSystem[JOINED]).isEqualTo(peerMember);
    assertThat(memberIdSystem[JOINED]).isEqualTo(peerMemberId);
    assertThat(isClientSystem[JOINED]).isFalse();
    assertThat(firedSystem[LEFT]).isFalse();
    assertThat(memberSystem[LEFT]).isNull();
    assertThat(memberIdSystem[LEFT]).isNull();
    assertThat(isClientSystem[LEFT]).isFalse();
    assertThat(firedSystem[CRASHED]).isFalse();
    assertThat(memberSystem[CRASHED]).isNull();
    assertThat(memberIdSystem[CRASHED]).isNull();
    assertThat(isClientSystem[CRASHED]).isFalse();

    resetArraysForTesting(firedSystem, memberSystem, memberIdSystem, isClientSystem);

    assertThat(firedAdapter[JOINED]).isTrue();
    assertThat(memberAdapter[JOINED]).isNotNull();
    assertThat(memberIdAdapter[JOINED]).isNotNull();
    assertThat(memberAdapter[JOINED]).isEqualTo(peerMember);
    assertThat(memberIdAdapter[JOINED]).isEqualTo(peerMemberId);
    assertThat(isClientAdapter[JOINED]).isFalse();
    assertThat(firedAdapter[LEFT]).isFalse();
    assertThat(memberAdapter[LEFT]).isNull();
    assertThat(memberIdAdapter[LEFT]).isNull();
    assertThat(isClientAdapter[LEFT]).isFalse();
    assertThat(firedAdapter[CRASHED]).isFalse();
    assertThat(memberAdapter[CRASHED]).isNull();
    assertThat(memberIdAdapter[CRASHED]).isNull();
    assertThat(isClientAdapter[CRASHED]).isFalse();

    resetArraysForTesting(firedAdapter, memberAdapter, memberIdAdapter, isClientAdapter);

    addIgnoredException(ServerConnectivityException.class.getName());
    addIgnoredException(IOException.class.getName());

    vm0.invoke(new SerializableRunnable("Disconnect Peer server") {
      @Override
      public void run() {
        disconnectFromDS();
      }
    });

    synchronized (systemListener) {
      if (!firedSystem[LEFT]) {
        systemListener.wait(ASYNC_EVENT_WAIT_MILLIS);
      }
    }
    synchronized (adapter) {
      if (!firedAdapter[LEFT]) {
        adapter.wait(ASYNC_EVENT_WAIT_MILLIS);
      }
    }

    // done with IgnoredExceptions

    assertArrayFalse(firedSystemDuplicate);
    assertArrayFalse(firedAdapterDuplicate);

    assertThat(firedSystem[JOINED]).isFalse();
    assertThat(memberSystem[JOINED]).isNull();
    assertThat(memberIdSystem[JOINED]).isNull();
    assertThat(isClientSystem[JOINED]).isFalse();
    assertThat(firedSystem[LEFT]).isTrue();
    assertThat(memberSystem[LEFT]).isEqualTo(peerMember);
    assertThat(memberIdSystem[LEFT]).isEqualTo(peerMemberId);
    assertThat(isClientSystem[LEFT]).isFalse();
    assertThat(firedSystem[CRASHED]).isFalse();
    assertThat(memberSystem[CRASHED]).isNull();
    assertThat(memberIdSystem[CRASHED]).isNull();
    assertThat(isClientSystem[CRASHED]).isFalse();

    resetArraysForTesting(firedSystem, memberSystem, memberIdSystem, isClientSystem);

    assertThat(firedAdapter[JOINED]).isFalse();
    assertThat(memberIdAdapter[JOINED]).isNull();
    assertThat(isClientAdapter[JOINED]).isFalse();
    // LEFT fired by System listener
    assertThat(firedAdapter[LEFT]).isTrue();
    assertThat(memberAdapter[LEFT]).isEqualTo(peerMember);
    assertThat(memberIdAdapter[LEFT]).isEqualTo(peerMemberId);
    assertThat(isClientAdapter[LEFT]).isFalse();

    // There won't be an adapter crashed event because since the two VMs
    // are in the same distributed system, and the server's real member
    // id is used now. In this case, two events are sent - one from
    // jgroups (memberDeparted), and one from the server (a memberCrashed).
    // The memberCrashed event is deemed a duplicate and not sent - see
    // UniversalMembershipListenerAdapter.MembershipListener.isDuplicate

    assertThat(firedAdapter[CRASHED]).isFalse();
    assertThat(memberAdapter[CRASHED]).isNull();
    assertThat(memberIdAdapter[CRASHED]).isNull();
    assertThat(isClientAdapter[CRASHED]).isFalse();

    resetArraysForTesting(firedAdapter, memberAdapter, memberIdAdapter, isClientAdapter);
  }