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

java.nio.channels.SocketChannel.finishConnect()
Complete the connection.
This method is used when the channel is connectable to finish the connection, and the connectable status of a channel means the channel is after initiating in non-blocking mode and calling its connect method. It will throw related IOException if the connection failed.

This method will return true if the connection is finished already, and return false if the channel is non-blocking and the connection is not finished yet.

If the channel is in blocking mode, this method will suspend, and return true for connection finished or throw some exception otherwise. The channel will be closed if the connection failed and this method thrown some exception.

This method can be called at any moment, and can block other read and write operations while connecting.
@return true if the connection is successfully finished,false otherwise. @throws NoConnectionPendingException If the channel is not connected and the connection is not initiated. @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 IOException Some other IO error occurred.

        // Why we just have to do this once, here
        updateNow();
        for (SelectionKey k : selected) {
            SocketChannel sc = ((SocketChannel) k.channel());
            if ((k.readyOps() & SelectionKey.OP_CONNECT) != 0) {
                if (sc.finishConnect()) {
                    updateLastSendAndHeard();
                    sendThread.primeConnection();
                }
            } else if ((k.readyOps() & (SelectionKey.OP_READ | SelectionKey.OP_WRITE)) != 0) {
                doIO(pendingQueue, outgoingQueue);

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                    // Why we just have to do this once, here
                    now = System.currentTimeMillis();
                    for (SelectionKey k : selected) {
                        SocketChannel sc = ((SocketChannel) k.channel());
                        if ((k.readyOps() & SelectionKey.OP_CONNECT) != 0) {
                            if (sc.finishConnect()) {
                                lastHeard = now;
                                lastSend = now;
                                primeConnection(k);
                                LOG.info("Server connection successful");
                            }

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            SocketChannel ch = ( SocketChannel ) key.channel();
            ConnectionRequest entry = ( ConnectionRequest ) key.attachment();


            try
            {
                ch.finishConnect();
                SocketSession session = newSession( ch, entry.handler );
                entry.session = session;
            }
            catch( Throwable e )
            {

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            if (!key.isConnectable()) {
              return;
            }
    
            try {
              channel.finishConnect();
              final SelectionKey selectionKey = channel.register(selector, 0);
              
              final LinkedList<ByteBuffer> toWriteQueue = new LinkedList<ByteBuffer>();
  
              selectionKey.attach(new SelectionKeyVisitor() {

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              outboundChannel.configureBlocking(false);
              // not so useful because it's 2 hours timeout :(
              outboundChannel.socket().setKeepAlive(true);
              final Address clientAddress = new Address(outboundChannel.socket().getInetAddress().getHostAddress(), outboundChannel.socket().getPort());
              //%% System.out.println("Client connected: " + clientAddress); //T ODO rm
              outboundChannel.finishConnect();
              final SelectionKey selectionKey = outboundChannel.register(selector, 0);
              
              final LinkedList<ByteBuffer> toWriteQueue = new LinkedList<ByteBuffer>();
              
              final CloseableByteBufferHandler read = listening.connected(clientAddress, new CloseableByteBufferHandler() {

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            try {
                // Do this nonblocking so we can be interrupted
                channel.configureBlocking(false);
                channel.connect( new InetSocketAddress(InetAddress.getByName(remoteHost), remotePort) );
                context.getThread().select(channel, this, SelectionKey.OP_CONNECT);
                channel.finishConnect();


                // only try to set blocking back if we succeeded to finish connecting
                channel.configureBlocking(true);


                initSocket(newChannelFD(runtime, channel));

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                } else {
                    SocketChannel connected = getServerSocketChannel().accept();
                    if (connected == null) continue;


                    connected.finishConnect();


                    // Force the client socket to be blocking
                    synchronized (connected.blockingLock()) {
                        connected.configureBlocking(false);
                        connected.configureBlocking(true);

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                SocketChannel socket = (SocketChannel)channel;
                boolean result;
                
                if (socket.isConnectionPending()) {
                    // connection initiated but not finished
                    result = socket.finishConnect();
                } else {
                    result = socket.connect(addr);
                }


                if(!result) {

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          if (selKey.isValid() && selKey.isConnectable()) {
            // if this socket throws an exception (e.g., connection refused),
            // print error msg and skip it.
            try {
              SocketChannel sChannel = (SocketChannel)selKey.channel();
              sChannel.finishConnect();
            } catch (Exception e) {
              stats.incNumConnectErrorServers();
              String err = String.format("socket %d connects to server %s " +
                "error: %s",
                index, servers.get(index).toString(), e.toString());

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      final SocketChannel forwarderChannel = SocketChannel.open(address.getAddress());
      if (forwarderChannel == null) 
        throw new IOException("Unable to create channel.");
      synchronized(forwarderChannel)
      {
        if(!forwarderChannel.finishConnect())
          throw new HTTPException(HTTPStatus.S500_INTERNAL_ERROR);
        final HTTPForwarder forwarder=new HTTPForwarder(this, server, forwarderChannel);
        forwarderChannel.configureBlocking (false);
        final String webContext=address.getContext();
        final StringBuilder urlPage=new StringBuilder("");

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