/** * Initializes the connection by creating a packet reader and writer and opening a XMPP stream to * the server. * * @throws XMPPException if establishing a connection to the server fails. */ private void initConnection() throws XMPPException { PacketReader packetReader = this.packetReader; PacketWriter packetWriter = this.packetWriter; boolean isFirstInitialization = packetReader == null || packetWriter == null; usingCompression = false; // Set the reader and writer instance variables initReaderAndWriter(); try { if (isFirstInitialization) { this.packetWriter = packetWriter = new PacketWriter(this); this.packetReader = packetReader = new PacketReader(this); // If debugging is enabled, we should start the thread that will listen for // all packets and then log them. if (config.isDebuggerEnabled()) { addPacketListener(debugger.getReaderListener(), null); if (debugger.getWriterListener() != null) { addPacketSendingListener(debugger.getWriterListener(), null); } } } else { packetWriter.init(); packetReader.init(); } // Start the packet writer. This will open a XMPP stream to the server packetWriter.startup(); // Start the packet reader. The startup() method will block until we // get an opening stream packet back from server. packetReader.startup(); // Make note of the fact that we're now connected. connected = true; // Start keep alive process (after TLS was negotiated - if available) packetWriter.startKeepAliveProcess(); if (isFirstInitialization) { // Notify listeners that a new connection has been established for (ConnectionCreationListener listener : getConnectionCreationListeners()) { listener.connectionCreated(this); } } else if (!wasAuthenticated) { packetReader.notifyReconnection(); } } catch (XMPPException ex) { // An exception occurred in setting up the connection. Make sure we shut down the // readers and writers and close the socket. if (packetWriter != null) { try { packetWriter.shutdown(); } catch (Throwable ignore) { /* ignore */ } this.packetWriter = null; } if (packetReader != null) { try { packetReader.shutdown(); } catch (Throwable ignore) { /* ignore */ } this.packetReader = null; } if (reader != null) { try { reader.close(); } catch (Throwable ignore) { /* ignore */ } reader = null; } if (writer != null) { try { writer.close(); } catch (Throwable ignore) { /* ignore */ } writer = null; } if (socket != null) { try { socket.close(); } catch (Exception e) { /* ignore */ } socket = null; } this.setWasAuthenticated(authenticated); chatManager = null; authenticated = false; connected = false; throw ex; // Everything stoppped. Now throw the exception. } }