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.

     * {@inheritDoc}
     * <p>
     * Logs when data arrives from the client, and echoes the message back.
     */
    public void receivedMessage(ByteBuffer message) {
        ClientSession session = getSession();


        logger.log(Level.INFO, "Message from {0}", sessionName);


        // Echo message back to sender
        session.send(message);
    }

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     * {@inheritDoc}
     * <p>
     * Logs when data arrives from the client, and echoes the message back.
     */
    public void receivedMessage(ByteBuffer message) {
        ClientSession session = getSession();


        if (logger.isLoggable(Level.FINE)) {
            logger.log(Level.FINE, "Message from {0}", sessionName);
        }
        session.send(message);
    }

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    public void addUserToCellChannel(WonderlandClientID clientID) {
        if (cellChannelRef == null)
            return;


        // issue 963: the session may be null if the user is logging out
        ClientSession session = clientID.getSession();
        if (session != null) {
            cellChannelRef.getForUpdate().join(session);
        }
    }

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    public void removeUserFromCellChannel(WonderlandClientID clientID) {
        if (cellChannelRef == null)
            return;


        // issue 963: the session may be null if the user is logging out
        ClientSession session = clientID.getSession();
        if (session != null) {
            cellChannelRef.getForUpdate().leave(session);
        }
    }

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  }


  /** {@inheritDoc} */
  public void serviceEvent(final ChannelImpl channel) {


      ClientSession session =
    (ClientSession) getObjectForId(sessionRefId);
      if (session == null) {
    logger.log(
        Level.FINE,
        "unable to obtain client session for ID:{0}", this);

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  }


  /** {@inheritDoc} */
  public void serviceEvent(ChannelImpl channel) {


      ClientSession session =
    (ClientSession) getObjectForId(sessionRefId);
      if (session == null) {
    logger.log(
        Level.FINE,
        "unable to obtain client session for ID:{0}", this);

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      /*
       * Verfiy that the sending session (if any) is a member of this
       * channel.
       */
      if (senderRefId != null) {
    ClientSession sender =
        (ClientSession) getObjectForId(senderRefId);
    if (sender == null ||
        !channel.hasSession(getNodeId(sender), senderRefId))
    {
        return;

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            send(channelRef.get(), message);
        }


        public void send(WonderlandClientID wlID, Message message) {
            // issue 963: session may be null
            ClientSession session = wlID.getSession();
            if (session != null) {
                session.send(serializeMessage(message, clientID));
            }
        }

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     * @param ref a reference to the correct client handler
     */
    private void finishAttach(MessageID messageID, ConnectionType type,
                              Properties properties, ClientHandlerRef ref)
    {
        ClientSession session = getSession();


        // get the ID for this type
        WonderlandClientSenderImpl sender = getHandlerStore().getSender(type);
        short clientID = sender.getClientID();
        
        // make sure this isn't a duplicate join
        if (handlers.containsKey(Short.valueOf(clientID))) {
            logger.fine("Session " + session.getName() + " duplicate client " +
                        "for type " + type);
            sendError(messageID, SESSION_INTERNAL_CLIENT_ID,
                          "Duplicate client for " + type);
            return;
        }

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                sendError(m, "Client version incompatible with server " + 
                             "version " + cp.getVersion());
            }
            
            
            ClientSession session = getSession();
            logger.info("Session " + session.getName() + " connected with " +
                        "protocol " + cp.getName());
            
            // all set -- set the wrapped session
            wrapped = cp.createSessionListener(session, psm.getProtocolVersion());
            if (wrapped instanceof ManagedObject) {

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