Example usage for java.net Socket getChannel

Introduction

In this page you can find the example usage for java.net Socket getChannel.

Prototype

public SocketChannel getChannel() 

Source Link

Document

Returns the unique java.nio.channels.SocketChannel SocketChannel object associated with this socket, if any.

Usage

From source file:Main.java

License:asdf

public static void main(String args[]) throws Exception {
    Socket s = new Socket("internic.net", 43);
    InputStream in = s.getInputStream();
    OutputStream out = s.getOutputStream();
    String str = "asdfasdfasdf\n";
    byte buf[] = str.getBytes();
    out.write(buf);//from   w ww  .j  av a  2 s.  c o  m
    int c;
    while ((c = in.read()) != -1) {
        System.out.print((char) c);
    }

    SocketChannel socketChannel = s.getChannel();
    System.out.println(socketChannel.getLocalAddress());

    s.close();
}

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From source file:eu.stratosphere.nephele.net.NetUtils.java

/**
 * Returns InputStream for the socket. If the socket has an associated
 * SocketChannel then it returns a {@link SocketInputStream} with the given timeout. If the socket does not
 * have a channel, {@link Socket#getInputStream()} is returned. In the later
 * case, the timeout argument is ignored and the timeout set with {@link Socket#setSoTimeout(int)} applies for
 * reads.<br>/*from   w  w  w.ja v  a2  s  .com*/
 * <br>
 * Any socket created using socket factories returned by {@link #NetUtils},
 * must use this interface instead of {@link Socket#getInputStream()}.
 * 
 * @see Socket#getChannel()
 * @param socket
 * @param timeout
 *        timeout in milliseconds. This may not always apply. zero
 *        for waiting as long as necessary.
 * @return InputStream for reading from the socket.
 * @throws IOException
 */
public static InputStream getInputStream(Socket socket, long timeout) throws IOException {
    return (socket.getChannel() == null) ? socket.getInputStream() : new SocketInputStream(socket, timeout);
}

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From source file:eu.stratosphere.nephele.net.NetUtils.java

/**
 * Returns OutputStream for the socket. If the socket has an associated
 * SocketChannel then it returns a {@link SocketOutputStream} with the given timeout. If the socket does not
 * have a channel, {@link Socket#getOutputStream()} is returned. In the later
 * case, the timeout argument is ignored and the write will wait until
 * data is available.<br>//from   w  w w .j a  va  2 s .  c  o  m
 * <br>
 * Any socket created using socket factories returned by {@link #NetUtils},
 * must use this interface instead of {@link Socket#getOutputStream()}.
 * 
 * @see Socket#getChannel()
 * @param socket
 * @param timeout
 *        timeout in milliseconds. This may not always apply. zero
 *        for waiting as long as necessary.
 * @return OutputStream for writing to the socket.
 * @throws IOException
 */
public static OutputStream getOutputStream(Socket socket, long timeout) throws IOException {
    return (socket.getChannel() == null) ? socket.getOutputStream() : new SocketOutputStream(socket, timeout);
}

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From source file:eu.stratosphere.nephele.net.NetUtils.java

public static void connect(Socket socket, SocketAddress endpoint, int timeout) throws IOException {
    if (socket == null || endpoint == null || timeout < 0) {
        throw new IllegalArgumentException("Illegal argument for connect()");
    }// www .  j  av  a  2 s.c o  m

    SocketChannel ch = socket.getChannel();

    if (ch == null) {
        // let the default implementation handle it.
        socket.connect(endpoint, timeout);
    } else {
        SocketIOWithTimeout.connect(ch, endpoint, timeout);
    }
}

---

From source file:Main.java

/**
 * Renders the details of a socket in the returned string
 * @param socket The socket to render//from w w w  .ja  v  a 2 s  . co m
 * @return the details of the socket as a string
 */
public static String render(Socket socket) {
    if (socket == null)
        return "NULL";
    StringBuilder b = new StringBuilder("\nSocket [");
    b.append("\n\tLocalPort:").append(socket.getLocalPort());
    b.append("\n\tLocalAddress:").append(socket.getLocalAddress());
    b.append("\n\tLocalSocketAddress:").append(socket.getLocalSocketAddress());
    b.append("\n\tRemotePort:").append(socket.getPort());
    b.append("\n\tRemoteAddress:").append(socket.getInetAddress());
    b.append("\n\tRemoteSocketAddress:").append(socket.getRemoteSocketAddress());
    b.append("\n\tChannel:").append(socket.getChannel());
    b.append("\n\tHashCode:").append(socket.hashCode());
    b.append("\n]");
    return b.toString();
}

---

From source file:net.NetUtils.java

/**
 * This is a drop-in replacement for /*w w w  .  j a va  2 s  .c o  m*/
 * {@link Socket#connect(SocketAddress, int)}.
 * In the case of normal sockets that don't have associated channels, this 
 * just invokes <code>socket.connect(endpoint, timeout)</code>. If 
 * <code>socket.getChannel()</code> returns a non-null channel,
 * connect is implemented using Hadoop's selectors. This is done mainly
 * to avoid Sun's connect implementation from creating thread-local 
 * selectors, since Hadoop does not have control on when these are closed
 * and could end up taking all the available file descriptors.
 * 
 * @see java.net.Socket#connect(java.net.SocketAddress, int)
 * 
 * @param socket
 * @param endpoint 
 * @param timeout - timeout in milliseconds
 */
public static void connect(Socket socket, SocketAddress endpoint, int timeout) throws IOException {
    if (socket == null || endpoint == null || timeout < 0) {
        throw new IllegalArgumentException("Illegal argument for connect()");
    }

    SocketChannel ch = socket.getChannel();

    if (ch == null) {
        // let the default implementation handle it.
        socket.connect(endpoint, timeout);
    } else {
        SocketIOWithTimeout.connect(ch, endpoint, timeout);
    }

    // There is a very rare case allowed by the TCP specification, such that
    // if we are trying to connect to an endpoint on the local machine,
    // and we end up choosing an ephemeral port equal to the destination port,
    // we will actually end up getting connected to ourself (ie any data we
    // send just comes right back). This is only possible if the target
    // daemon is down, so we'll treat it like connection refused.
    if (socket.getLocalPort() == socket.getPort() && socket.getLocalAddress().equals(socket.getInetAddress())) {
        LOG.info("Detected a loopback TCP socket, disconnecting it");
        socket.close();
        throw new ConnectException("Localhost targeted connection resulted in a loopback. "
                + "No daemon is listening on the target port.");
    }
}

---

From source file:com.buaa.cfs.utils.NetUtils.java

/**
 * Like {@link NetUtils#connect(Socket, SocketAddress, int)} but also takes a local address and port to bind the
 * socket to./*from   w w  w .  j a  va 2s  . c om*/
 *
 * @param socket
 * @param endpoint  the remote address
 * @param localAddr the local address to bind the socket to
 * @param timeout   timeout in milliseconds
 */
public static void connect(Socket socket, SocketAddress endpoint, SocketAddress localAddr, int timeout)
        throws IOException {
    if (socket == null || endpoint == null || timeout < 0) {
        throw new IllegalArgumentException("Illegal argument for connect()");
    }

    SocketChannel ch = socket.getChannel();

    if (localAddr != null) {
        Class localClass = localAddr.getClass();
        Class remoteClass = endpoint.getClass();
        Preconditions.checkArgument(localClass.equals(remoteClass),
                "Local address %s must be of same family as remote address %s.", localAddr, endpoint);
        socket.bind(localAddr);
    }

    try {
        if (ch == null) {
            // let the default implementation handle it.
            socket.connect(endpoint, timeout);
        } else {
            //        SocketIOWithTimeout.connect(ch, endpoint, timeout);
        }
    } catch (SocketTimeoutException ste) {
        //      throw new ConnectTimeoutException(ste.getMessage());
    }

    // There is a very rare case allowed by the TCP specification, such that
    // if we are trying to connect to an endpoint on the local machine,
    // and we end up choosing an ephemeral port equal to the destination port,
    // we will actually end up getting connected to ourself (ie any data we
    // send just comes right back). This is only possible if the target
    // daemon is down, so we'll treat it like connection refused.
    if (socket.getLocalPort() == socket.getPort() && socket.getLocalAddress().equals(socket.getInetAddress())) {
        LOG.info("Detected a loopback TCP socket, disconnecting it");
        socket.close();
        throw new ConnectException("Localhost targeted connection resulted in a loopback. "
                + "No daemon is listening on the target port.");
    }
}

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From source file:com.sun.grizzly.http.jk.common.ChannelNioSocket.java

public void close(MsgContext ep) throws IOException {
    Socket s = (Socket) ep.getNote(socketNote);
    SelectionKey key = s.getChannel().keyFor(selector);
    if (key != null) {
        key.cancel();/* w  w  w . jav  a 2  s .c o m*/
    }
    s.close();
}

---

From source file:org.apache.flink.runtime.net.NetUtils.java

/**
 * Returns InputStream for the socket. If the socket has an associated
 * SocketChannel then it returns a {@link SocketInputStream} with the given timeout. If the socket does not
 * have a channel, {@link Socket#getInputStream()} is returned. In the later
 * case, the timeout argument is ignored and the timeout set with {@link Socket#setSoTimeout(int)} applies for
 * reads.<br>//from   ww  w.java  2 s. c  o m
 * <br>
 * Any socket created using socket factories returned by {@link #NetUtils},
 * must use this interface instead of {@link Socket#getInputStream()}.
 * 
 * @see Socket#getChannel()
 * @param socket
 * @param timeout
 *        timeout in milliseconds. This may not always apply. zero
 *        for waiting as long as necessary.
 * @return InputStream for reading from the socket.
 * @throws IOException
 */
@SuppressWarnings("resource")
public static InputStream getInputStream(Socket socket, long timeout) throws IOException {
    return (socket.getChannel() == null) ? socket.getInputStream() : new SocketInputStream(socket, timeout);
}

---

From source file:org.apache.flink.runtime.net.NetUtils.java

/**
 * Returns OutputStream for the socket. If the socket has an associated
 * SocketChannel then it returns a {@link SocketOutputStream} with the given timeout. If the socket does not
 * have a channel, {@link Socket#getOutputStream()} is returned. In the later
 * case, the timeout argument is ignored and the write will wait until
 * data is available.<br>//from  ww w. j  a va2s.  co m
 * <br>
 * Any socket created using socket factories returned by {@link #NetUtils},
 * must use this interface instead of {@link Socket#getOutputStream()}.
 * 
 * @see Socket#getChannel()
 * @param socket
 * @param timeout
 *        timeout in milliseconds. This may not always apply. zero
 *        for waiting as long as necessary.
 * @return OutputStream for writing to the socket.
 * @throws IOException
 */
@SuppressWarnings("resource")
public static OutputStream getOutputStream(Socket socket, long timeout) throws IOException {
    return (socket.getChannel() == null) ? socket.getOutputStream() : new SocketOutputStream(socket, timeout);
}

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