Example usage for java.nio.channels SocketChannel open

Introduction

In this page you can find the example usage for java.nio.channels SocketChannel open.

Prototype

public static SocketChannel open(SocketAddress remote) throws IOException 

Source Link

Document

Opens a socket channel and connects it to a remote address.

Usage

From source file:org.apache.pig.shock.SSHSocketImplFactory.java

public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
    String socksHost = System.getProperty("socksProxyHost");
    Socket s;/*  www .  j a  va 2s.com*/
    InetSocketAddress addr = new InetSocketAddress(host, port);
    if (socksHost != null) {
        Proxy proxy = new Proxy(Type.SOCKS, new InetSocketAddress(socksHost, 1080));
        s = new Socket(proxy);
        s.connect(addr);
    } else {
        log.error(addr);
        SocketChannel sc = SocketChannel.open(addr);
        s = sc.socket();
    }
    s.setTcpNoDelay(true);
    return s;
}

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From source file:Proxy.java

/** We handle only non-SSL connections */
void loop(Selector selector) {
    Set ready_keys;//w  ww  .j  a  va2  s  .co m
    SelectionKey key;
    ServerSocketChannel srv_sock;
    SocketChannel in_sock, out_sock;
    InetSocketAddress src, dest;

    while (true) {
        if (verbose)
            log("[Proxy] ready to accept connection");

        // 4. Call Selector.select()
        try {
            selector.select();

            // get set of ready objects
            ready_keys = selector.selectedKeys();
            for (Iterator it = ready_keys.iterator(); it.hasNext();) {
                key = (SelectionKey) it.next();
                it.remove();

                if (key.isAcceptable()) {
                    srv_sock = (ServerSocketChannel) key.channel();
                    // get server socket and attachment
                    src = (InetSocketAddress) key.attachment();
                    in_sock = srv_sock.accept(); // accept request
                    if (verbose)
                        log("Proxy.loop()", "accepted connection from " + toString(in_sock));
                    dest = (InetSocketAddress) mappings.get(src);
                    // find corresponding dest
                    if (dest == null) {
                        in_sock.close();
                        log("Proxy.loop()", "did not find a destination host for " + src);
                        continue;
                    } else {
                        if (verbose)
                            log("Proxy.loop()",
                                    "relaying traffic from " + toString(src) + " to " + toString(dest));
                    }

                    // establish connection to destination host
                    try {
                        out_sock = SocketChannel.open(dest);
                        // uses thread pool (Executor) to handle request, closes socks at end
                        handleConnection(in_sock, out_sock);
                    } catch (Exception ex) {
                        in_sock.close();
                        throw ex;
                    }
                }
            }
        } catch (Exception ex) {
            log("Proxy.loop()", "exception: " + ex);
        }
    }
}

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From source file:org.apache.awf.web.SystemTest.java

@Test
public void sendGarbageTest() throws IOException {

    InetSocketAddress socketAddress = new InetSocketAddress(PORT);
    SocketChannel channel = SocketChannel.open(socketAddress);
    channel.write(ByteBuffer.wrap(new byte[] { 1, 1, 1, 1 } // garbage
    ));//from  www. j av  a2s .co  m
    channel.close();
}

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From source file:org.apache.zookeeper.server.quorum.QuorumPeerMainTest.java

/**
 * verify if bad packets are being handled properly
 * at the quorum port//from w  ww  . j a  v a 2  s .  c  o m
 * @throws Exception
 */
@Test
public void testBadPackets() throws Exception {
    ClientBase.setupTestEnv();
    final int CLIENT_PORT_QP1 = PortAssignment.unique();
    final int CLIENT_PORT_QP2 = PortAssignment.unique();
    int electionPort1 = PortAssignment.unique();
    int electionPort2 = PortAssignment.unique();
    String quorumCfgSection = "server.1=127.0.0.1:" + PortAssignment.unique() + ":" + electionPort1 + ";"
            + CLIENT_PORT_QP1 + "\nserver.2=127.0.0.1:" + PortAssignment.unique() + ":" + electionPort2 + ";"
            + CLIENT_PORT_QP2;

    MainThread q1 = new MainThread(1, CLIENT_PORT_QP1, quorumCfgSection);
    MainThread q2 = new MainThread(2, CLIENT_PORT_QP2, quorumCfgSection);
    q1.start();
    q2.start();

    Assert.assertTrue("waiting for server 1 being up",
            ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT_QP1, CONNECTION_TIMEOUT));
    Assert.assertTrue("waiting for server 2 being up",
            ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT_QP2, CONNECTION_TIMEOUT));

    byte[] b = new byte[4];
    int length = 1024 * 1024 * 1024;
    ByteBuffer buff = ByteBuffer.wrap(b);
    buff.putInt(length);
    buff.position(0);
    SocketChannel s = SocketChannel.open(new InetSocketAddress("127.0.0.1", electionPort1));
    s.write(buff);
    s.close();
    buff.position(0);
    s = SocketChannel.open(new InetSocketAddress("127.0.0.1", electionPort2));
    s.write(buff);
    s.close();

    ZooKeeper zk = new ZooKeeper("127.0.0.1:" + CLIENT_PORT_QP1, ClientBase.CONNECTION_TIMEOUT, this);
    waitForOne(zk, States.CONNECTED);
    zk.create("/foo_q1", "foobar1".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
    Assert.assertEquals(new String(zk.getData("/foo_q1", null, null)), "foobar1");
    zk.close();
    q1.shutdown();
    q2.shutdown();
}

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