Examples with Socket java.net.Socket used on opensource projects

Example 71 with Socket

use of java.net.Socket in project bigbluebutton by bigbluebutton.

the class SocketScreenVideoSender method connect.

/* BBB-DS */
public void connect(String host, String room, int width, int height) throws ConnectionException {
    this.room = room;
    this.width = width;
    this.height = height;
    try {
        socket = new Socket(host, PORT);
        outStream = new DataOutputStream(socket.getOutputStream());
        sendHeaderEventAndRoom(CaptureEvents.CAPTURE_START.getEvent());
        sendScreenCaptureInfo(width, height);
        outStream.flush();
    } catch (UnknownHostException e) {
        e.printStackTrace();
        throw new ConnectionException("UnknownHostException: " + host);
    } catch (IOException e) {
        e.printStackTrace();
        throw new ConnectionException("IOException: " + host + ":" + PORT);
    }
    System.out.println("Starting capturedScreenSender ");
    sendCapturedScreen = true;
    capturedScreenSender = new Runnable() {

        public void run() {
            while (sendCapturedScreen) {
                try {
                    //System.out.println("ScreenQueue size " + screenQ.size());
                    ScreenVideo newScreen = screenQ.take();
                    try {
                        sendCapturedScreen(newScreen);
                    } catch (ConnectionException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                } catch (InterruptedException e) {
                    System.out.println("InterruptedExeption while taking event.");
                }
            }
        }
    };
    exec.execute(capturedScreenSender);
}

Example 72 with Socket

use of java.net.Socket in project musiccabinet by hakko.

the class JdbcDatabaseAdministrationDao method isRDBMSRunning.

/*
	 * Verify that a postgresql server is running.
	 * 
	 * Try sending what pgAdmin would send when connecting to a postgresql server,
	 * and verify that we get an 'R' back as first character from the database
	 * ('R' = authentication request).
	 * 
	 * Iff we get that, we decide that we have a postgresql server at hand.
	 * 
	 * TODO : it would be good to check version of postgresql server, but that isn't
	 * officially available until we have a user account. Checking it indirectly by
	 * looking at line numbers in error message (those change between postgresql
	 * releases) seems too ugly/error prone.
	 */
@Override
public boolean isRDBMSRunning() {
    boolean running = false;
    try {
        Socket socket = new Socket(host, port);
        PrintWriter pw = new PrintWriter(socket.getOutputStream());
        pw.print(new char[] { (char) 0, (char) 0, (char) 0, (char) 42, (char) 0, (char) 3, (char) 0, (char) 0, 'u', 's', 'e', 'r', (char) 0, 'p', 'o', 's', 't', 'g', 'r', 'e', 's', (char) 0, 'd', 'a', 't', 'a', 'b', 'a', 's', 'e', (char) 0, 't', 'e', 'm', 'p', 'l', 'a', 't', 'e', '1', (char) 0, (char) 0 });
        pw.flush();
        InputStreamReader isr = new InputStreamReader(socket.getInputStream());
        char response = (char) isr.read();
        running = true;
        if (response != 'R') {
            LOG.warn("Expected Postgresql server to return R, got " + response + ".");
        }
        socket.close();
    } catch (IOException e) {
        LOG.warn("Couldn't connect to Postgres service!", e);
    // expected if database is down, or we've connected to something that's not postgre
    }
    return running;
}

Example 73 with Socket

use of java.net.Socket in project hazelcast by hazelcast.

the class ClientConnectionManagerImpl method createSocketConnection.

protected ClientConnection createSocketConnection(final Address address) throws IOException {
    if (!alive) {
        throw new HazelcastException("ConnectionManager is not active!");
    }
    SocketChannel socketChannel = null;
    try {
        socketChannel = SocketChannel.open();
        Socket socket = socketChannel.socket();
        socket.setKeepAlive(socketOptions.isKeepAlive());
        socket.setTcpNoDelay(socketOptions.isTcpNoDelay());
        socket.setReuseAddress(socketOptions.isReuseAddress());
        if (socketOptions.getLingerSeconds() > 0) {
            socket.setSoLinger(true, socketOptions.getLingerSeconds());
        }
        int bufferSize = getBufferSize();
        socket.setSendBufferSize(bufferSize);
        socket.setReceiveBufferSize(bufferSize);
        InetSocketAddress inetSocketAddress = address.getInetSocketAddress();
        socketChannel.socket().connect(inetSocketAddress, connectionTimeout);
        SocketChannelWrapper socketChannelWrapper = socketChannelWrapperFactory.wrapSocketChannel(socketChannel, true);
        final ClientConnection clientConnection = new ClientConnection(client, ioThreadingModel, connectionIdGen.incrementAndGet(), socketChannelWrapper);
        socketChannel.configureBlocking(true);
        if (socketInterceptor != null) {
            socketInterceptor.onConnect(socket);
        }
        socketChannel.configureBlocking(ioThreadingModel.isBlocking());
        socket.setSoTimeout(0);
        clientConnection.start();
        return clientConnection;
    } catch (Exception e) {
        if (socketChannel != null) {
            socketChannel.close();
        }
        throw ExceptionUtil.rethrow(e, IOException.class);
    }
}

Example 74 with Socket

use of java.net.Socket in project gradle by gradle.

the class Snarl method send.

private void send(InetAddress host, final String title, final String message) {
    Socket socket = null;
    try {
        try {
            socket = new Socket(host, 9887);
        } catch (ConnectException e) {
            // Snarl is not running
            throw new AnnouncerUnavailableException("Snarl is not running on host " + String.valueOf(host) + ".", e);
        }
        PrintWriter printWriter = null;
        try {
            final OutputStream outputStream = socket.getOutputStream();
            printWriter = new PrintWriter(outputStream, true);
            printWriter.println(formatMessage(title, message));
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        } finally {
            IOUtils.closeQuietly(printWriter);
        }
    } catch (IOException ioException) {
        throw new UncheckedIOException(ioException);
    } finally {
        IOUtils.closeQuietly(socket);
    }
}

Example 75 with Socket

use of java.net.Socket in project hazelcast by hazelcast.

the class TcpIpConnection method toString.

@Override
public String toString() {
    Socket socket = socketChannel.socket();
    SocketAddress localSocketAddress = socket != null ? socket.getLocalSocketAddress() : null;
    SocketAddress remoteSocketAddress = socket != null ? socket.getRemoteSocketAddress() : null;
    return "Connection[id=" + connectionId + ", " + localSocketAddress + "->" + remoteSocketAddress + ", endpoint=" + endPoint + ", alive=" + alive + ", type=" + type + "]";
}