Examples of java.net.Socket.connect()

java.net.Socket.connect()
Connects this socket to the server. @param endpoint the SocketAddress @throws IOException if an error occurs during the connection @throws java.nio.channels.IllegalBlockingModeException if this socket has an associated channel, and the channel is in non-blocking mode @throws IllegalArgumentException if endpoint is null or is aSocketAddress subclass not supported by this socket @since 1.4 @spec JSR-51

    Assert.assertTrue(info.contains("redis_version:"));
  }


  private String testRedis(InetSocketAddress socketAddress) throws IOException {
    Socket socket = new Socket();
    socket.connect(socketAddress);
    socket.getOutputStream().write("INFO\r\n".getBytes());


    StringBuilder sb = new StringBuilder();


    BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));

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    Assert.assertTrue(response.contains("imok"));
  }


  private String testZookeeper(InetSocketAddress socketAddress) throws IOException {
    Socket socket = new Socket();
    socket.connect(socketAddress);
    socket.getOutputStream().write("ruok\n".getBytes());


    String response = IoUtils.readAll(socket.getInputStream());


    socket.close();

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         int bufferSize = socket.getReceiveBufferSize();
         socket.setReceiveBufferSize(socket_buffer_size);
         if (log.isDebugEnabled())
            log.debug("Connecting to state provider " + address.getIpAddress() + ":" + address.getPort()
                  + ", original buffer size was " + bufferSize + " and was reset to " + socket.getReceiveBufferSize());
         socket.connect(new InetSocketAddress(address.getIpAddress(), address.getPort()));
         if (log.isDebugEnabled())
            log.debug("Connected to state provider, my end of the socket is " + socket.getLocalAddress() + ":"
                  + socket.getLocalPort() + " passing inputstream up...");


         //write out our state_id and address so state provider can clear this request

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                } else {
                    boolean success = false;
                    Socket proxySocket = null;
                    try {
                        proxySocket = new Socket(proxy);
                        proxySocket.connect(new InetSocketAddress(host, port), connectTimeout);
                        socket = ((SSLSocketFactory) factory).createSocket(proxySocket, host, port, false);
                        success = true;
                    } finally {
                        if (!success) {
                            Utilities.close(proxySocket);

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        final Socket sock = new Socket();
        sock.setSendBufferSize(chan.getLocalMaxPacketSize());
        sock.setReceiveBufferSize(chan.getRemoteMaxPacketSize());


        sock.connect(addr);


        // ok so far -- could connect, let's confirm the channel
        chan.confirm();


        final Event<IOException> soc2chan = new StreamCopier(sock.getInputStream(), chan.getOutputStream())

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    Socket s = new Socket();
    s.setTcpNoDelay(true);
    s.setSoTimeout((int) connectionTimeout.getTotalMilliseconds());


    s.connect(socketAddress);


    s.getOutputStream().write(command.getBytes());
    s.getOutputStream().flush();


    // TODO: Timeout?

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  public boolean isPortOpen(InetSocketAddress socketAddress) throws IOException {
    Socket socket = new Socket();
    try {
      int timeout = 5000;
      socket.connect(socketAddress, timeout);
      return true;
    } catch (IOException e) {
      String message = e.getMessage();
      if (message.equalsIgnoreCase("connect timed out")) {
        return false;

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    testMemcache(socketAddress);
  }


  private void testMemcache(InetSocketAddress socketAddress) throws IOException {
    Socket socket = new Socket();
    socket.connect(socketAddress);
    socket.getOutputStream().write("stats\n".getBytes());


    BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
    while (true) {
      String line = reader.readLine();

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    private void dispatch() {
      Socket sock = new Socket();
      DataOutputStream out = null;
      DataInputStream in = null;
      try {
        sock.connect(NetUtils.createSocketAddr(
            target.datanode.getName()), HdfsConstants.READ_TIMEOUT);
        sock.setKeepAlive(true);
        out = new DataOutputStream( new BufferedOutputStream(
            sock.getOutputStream(), FSConstants.BUFFER_SIZE));
        sendRequest(out);

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    BlockReader blockReader = null;
    Block block = testBlock.getBlock();
    DatanodeInfo[] nodes = testBlock.getLocations();
    targetAddr = NetUtils.createSocketAddr(nodes[0].getName());
    s = new Socket();
    s.connect(targetAddr, HdfsConstants.READ_TIMEOUT);
    s.setSoTimeout(HdfsConstants.READ_TIMEOUT);


    return DFSClient.BlockReader.newBlockReader(
      s, targetAddr.toString()+ ":" + block.getBlockId(),
      block.getBlockId(),

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