Examples of com.sun.sgs.app.ClientSession

com.sun.sgs.app.ClientSession
Interface representing a single, connected login session between a client and the server. Classes that implement {@code ClientSession} must also implement {@link Serializable}.
When a client logs in, the application's {@link AppListener#loggedIn(ClientSession) AppListener.loggedIn} method isinvoked with a new {@code ClientSession} instance which represents thecurrent connection between that client and the server. By returning a unique {@link ClientSessionListener} from the {@code loggedIn} methodfor each given client session, the application will receive notification when a client session sends a message, is disconnected, or logs out. To explicitly disconnect a {@code ClientSession}, remove the associated {@code ClientSession} object from the data manager using the {@link DataManager#removeObject DataManager.removeObject} method.
A {@code ClientSession} is used to identify a client that islogged in, to send messages to that client, and to forcibly disconnect that client from the server.
A session is considered disconnected if one of the following occurs:
- the client logs out
- the client becomes disconnected due to a network failure, and a connection to the client cannot be re-established in a timely manner
- the {@code ClientSession} object is removed from the data manager
If a client associated with a {@code ClientSession} becomesdisconnected due to one of these conditions, the {@link ClientSessionListener#disconnected(boolean) disconnected} method isinvoked on that session's registered {@code ClientSessionListener} with a {@code boolean} thatif {@code true} indicates the client logged out gracefully.
Once a client becomes disconnected, its {@code ClientSession}becomes invalid and can no longer be used to communicate with that client and should be removed from the data manager. When that client logs back in again, a new session is established with the server.

        Channel channel = channelService.getChannel(channelName);
        List<String> users =
      new ArrayList<String>(Arrays.asList(someUsers));
        Iterator<ClientSession> iter = channel.getSessions();
        while (iter.hasNext()) {
      ClientSession session = iter.next();
      if (!(session instanceof ClientSessionWrapper)) {
          fail("session not ClientSessionWrapper instance: " +
         session);
      }
      String name = session.getName();
      if (! users.contains(name)) {
          fail("unexpected channel member: " + name);
      } else {
          System.err.println("getSessions includes: " + name);
          users.remove(name);

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  try {
      txnScheduler.runTask(new TestAbstractKernelRunnable() {
    public void run() {
        Channel channel = getChannel(channelName);
        ClientSession session =
      (ClientSession) dataService.getBinding(user);
        channel.join(session);
        dataService.removeObject(channel);
        try {
      channel.leave(session);

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  try {
      txnScheduler.runTask(new TestAbstractKernelRunnable() {
    public void run() {
        Channel channel = getChannel(channelName);
  
        ClientSession moe =
      (ClientSession) dataService.getBinding(MOE);
        channel.join(moe);


        try {
      ClientSession larry =
          (ClientSession) dataService.getBinding(LARRY);
      channel.leave(larry);
      System.err.println("leave of non-member session returned");
      
        } catch (Exception e) {
      System.err.println(e);
      fail("test failed with exception: " + e);
        }
        
    }
       }, taskOwner);


      Thread.sleep(100);
      
      txnScheduler.runTask(new TestAbstractKernelRunnable() {
    public void run() {
        Channel channel = getChannel(channelName);
  
        ClientSession moe =
      (ClientSession) dataService.getBinding(MOE);


        ClientSession larry =
      (ClientSession) dataService.getBinding(LARRY);
        
        Set<ClientSession> sessions = getSessions(channel);
        System.err.println(
      "sessions set (should only have moe): " + sessions);

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      for (final String user : someUsers) {
    
    txnScheduler.runTask(new TestAbstractKernelRunnable() {
        public void run() {
      Channel channel = getChannel(channelName);
      ClientSession session = getSession(user);
      channel.leave(session);
        }}, taskOwner);


    Thread.sleep(100);
    
    txnScheduler.runTask(new TestAbstractKernelRunnable() {
        public void run() {
      Channel channel = getChannel(channelName);
      ClientSession session = getSession(user);
      if (getSessions(channel).contains(session)) {
          fail("Failed to remove session: " + session);
      }}}, taskOwner);
      }

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  txnScheduler.runTask(new TestAbstractKernelRunnable() {
      public void run() {
    ChannelListener listener =
        new ValidatingChannelListener();
    dataService.setBinding(listenerName, listener);
    ClientSession session =
        (ClientSession) dataService.getBinding(user);
    Channel channel =
        channelService.createChannel(
      channelName, listener, Delivery.RELIABLE);
    channel.join(session);
      }
  }, taskOwner);


  // Wait for the client to join, and then send a channel message.
  client.assertJoinedChannel(channelName);
  client.sendChannelMessage(channelName, 0);


  // Validate that the session passed to the handleChannelMessage
  // method was a wrapped ClientSession.
  txnScheduler.runTask(new TestAbstractKernelRunnable() {
      public void run() {
    ValidatingChannelListener listener = (ValidatingChannelListener)
        dataService.getBinding(listenerName);
    ClientSession session =
        (ClientSession) dataService.getBinding(user);
    listener.validateSession(session);
    System.err.println("sessions are equal");
      }
  }, taskOwner);

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  for (int i = 0; i < numIterations; i++) {
      txnScheduler.runTask(new TestAbstractKernelRunnable() {
    public void run() {
        Channel channel = channelService.getChannel(channelName);
        DataManager dataManager = AppContext.getDataManager();
        ClientSession session = (ClientSession)
      dataManager.getBinding(sessionKey);
        channel.join(session);
        channel.leave(session);
    }}, taskOwner);
  }

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  DummyClient client = createDummyClient(name);
  try {
      assertTrue(client.connect(serverNode.getAppPort()).login());
      txnScheduler.runTask(new TestAbstractKernelRunnable() {
        public void run() {
      ClientSession session = (ClientSession)
          dataService.getBinding(name);
      if (!(session instanceof ClientSessionWrapper)) {
          fail("session not instance of " +
         "ClientSessionWrapper");
      }

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            counter = (Counter)
          dataManager.getBinding(counterName);
        } catch (NameNotBoundException e) {
            throw new MaybeRetryException("retry", true);
        }
        ClientSession session = (ClientSession)
            dataManager.getBinding(client.name);
        MessageBuffer buf = new MessageBuffer(4);
        buf.putInt(counter.getAndIncrement());
        session.send(ByteBuffer.wrap(buf.getBuffer()),
               delivery);
          }},
      
      identity);
    }

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      assertTrue(client.login());
      final int numMessages = 3;
      for (int i = 0; i < numMessages; i++) {
    txnScheduler.runTask(new TestAbstractKernelRunnable() {
      public void run() {
          ClientSession session = (ClientSession)
        AppContext.getDataManager().getBinding(name);
          System.err.println("Sending messages");
          session.send(buf, delivery);
      } }, taskOwner);
      }
  
      System.err.println("waiting for client to receive messages");
      client.waitForClientToReceiveExpectedMessages(numMessages);

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    new TestAbstractKernelRunnable() {
        int tryCount = 0;
        public void run() {
      Set<ClientSession> sessions =
          getAppListener().getSessions();
      ClientSession session = sessions.iterator().next();
      try {
          session.send(ByteBuffer.wrap(new byte[4096]));
      } catch (MessageRejectedException e) {
          fail("Should not run out of buffer space: " + e);
      }
      if (++tryCount < 100) {
          throw new MaybeRetryException("Retryable",  true);

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