Examples of java.nio.channels.SocketChannel.connect()

java.nio.channels.SocketChannel.connect()
Connect the socket to remote address.
If the channel is blocking, this method will suspend before connection finished or an I/O exception. If the channel is non-blocking, this method will return true if the connection is finished at once or return false and the connection must wait finishConnect to finished otherwise.

This method can be called at any moment, and can block other read and write operations while connecting.

This method just execute the same security checks as the connect method of the Socket class.
@param address The address to be connected. @return true if connection is finished,falseotherwise. @throws AlreadyConnectedException If the channel is connected already. @throws ConnectionPendingException A non-blocking connecting is doing on this channel. @throws ClosedChannelException If the channel is already closed. @throws AsynchronousCloseException If the channel is closed by another thread while this method is in operation. @throws ClosedByInterruptException If another thread interrupts the calling thread while the operation is in progress. The calling thread will have the interrupt state set, and the channel will be closed. @throws UnresolvedAddressException If the address is not resolved. @throws UnsupportedAddressTypeException If the address type is not supported. @throws SecurityException If there is a security manager, and the address is not permitted to access. @throws IOException Some other IO error occurred.

            sock.socket().setTcpNoDelay(true);
            setName(getName().replaceAll("\\(.*\\)",
                    "(" + addr.getHostName() + ":" + addr.getPort() + ")"));
            try {
                sockKey = sock.register(selector, SelectionKey.OP_CONNECT);
                boolean immediateConnect = sock.connect(addr);
                if (immediateConnect) {
                    primeConnection(sockKey);
                }
            } catch (IOException e) {
                LOG.error("Unable to open socket to " + addr);

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                sch = SocketChannel.open();
                sch.configureBlocking(true);
                sch.socket().setSoTimeout(5000);


                InetSocketAddress addr = new InetSocketAddress(ipAddress, port);
                sch.connect(addr);
                return null;
            } catch (IOException e) {
                s_logger.info("Could not connect to " + ipAddress + " due to " + e.toString());
                if (e instanceof ConnectException) {
                    // if connection is refused because of VM is being started,

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    for(SocketAddress sa : a) {
      SocketChannel ch=SocketChannel.open();
      ch.configureBlocking(false);
      MemcachedNode qa=f.createMemcachedNode(sa, ch, bufSize);
      int ops=0;
      if(ch.connect(sa)) {
        getLogger().info("Connected to %s immediately", qa);
        qa.connected();
        assert ch.isConnected();
      } else {
        getLogger().info("Added %s to connect queue", qa);

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      i.remove();
      getLogger().info("Reconnecting %s", qa);
      SocketChannel ch=SocketChannel.open();
      ch.configureBlocking(false);
      int ops=0;
      if(ch.connect(qa.getSocketAddress())) {
        getLogger().info("Immediately reconnected to %s", qa);
        assert ch.isConnected();
      } else {
        ops=SelectionKey.OP_CONNECT;
      }

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                ch.socket().bind(localAddress);
            }


            ch.configureBlocking(false);


            if (ch.connect(address)) {
                DefaultConnectFuture future = new DefaultConnectFuture();
                newSession(ch, handler, config, future);
                success = true;
                return future;
            }

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                ch.socket().bind( localAddress );
            }
    
            ch.configureBlocking( false );


            if( ch.connect( address ) )
            {
                SocketSession session = newSession( ch, handler );
                success = true;
                return session;
            }

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                sch = SocketChannel.open();
                sch.configureBlocking(true);
                sch.socket().setSoTimeout(5000);


                InetSocketAddress addr = new InetSocketAddress(targetIp, mshost.getServicePort());
                sch.connect(addr);
                return true;
            } catch (IOException e) {
                if (e instanceof ConnectException) {
                    s_logger.error("Unable to ping management server at " + targetIp + ":" + mshost.getServicePort() + " due to ConnectException", e);
                  return false;

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                }
                sch = SocketChannel.open();
                sch.configureBlocking(true);


                final InetSocketAddress addr = new InetSocketAddress(ipAddress, port);
                sch.connect(addr);
                return null;
            } catch (final IOException e) {
                if (s_logger.isDebugEnabled()) {
                    s_logger.debug("Could not connect to " + ipAddress);
                }

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                }
                sch = SocketChannel.open();
                sch.configureBlocking(true);


                final InetSocketAddress addr = new InetSocketAddress(ipAddress, _port);
                sch.connect(addr);
                return true;
            } catch (final IOException e) {
                if (s_logger.isDebugEnabled()) {
                    s_logger.debug("Could not connect to " + ipAddress);
                }

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                sch = SocketChannel.open();
                sch.configureBlocking(true);
                sch.socket().setSoTimeout(5000);


                InetSocketAddress addr = new InetSocketAddress(ipAddress, port);
                sch.connect(addr);
                return null;
            } catch (IOException e) {
                s_logger.info("Could not connect to " + ipAddress + " due to " + e.toString());
                if (e instanceof ConnectException) {
                    // if connection is refused because of VM is being started,

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