Example usage for java.net ServerSocket close

Introduction

In this page you can find the example usage for java.net ServerSocket close.

Prototype

public void close() throws IOException

Source Link

Document

Closes this socket.

Usage

From source file:org.mule.tck.PortUtils.java

/**
 * Check and log is a given port is available
 * // w  w w.ja v a2 s.  c  o  m
 * @param port the port number to check
 * @return true if the port is available, false otherwise
 */
public static boolean isPortFree(int port) {
    boolean portIsFree = true;

    ServerSocket server = null;
    try {
        server = new ServerSocket(port);
    } catch (IOException e) {
        portIsFree = false;
    } finally {
        if (server != null) {
            try {
                server.close();
            } catch (IOException e) {
                // ignore
            }
        }
    }
    return portIsFree;
}

From source file:org.apache.beam.sdk.io.hadoop.format.HadoopFormatIOElasticTest.java

@BeforeClass
public static void startServer() throws NodeValidationException, IOException {
    ServerSocket serverSocket = new ServerSocket(0);
    int port = serverSocket.getLocalPort();
    serverSocket.close();
    elasticInMemPort = String.valueOf(port);
    ElasticEmbeddedServer.startElasticEmbeddedServer();
}

From source file:org.apache.hama.MiniBSPCluster.java

private static void randomPort(HamaConfiguration conf) {
    try {// w w w .ja v  a2  s. c o  m
        ServerSocket skt = new ServerSocket(0);
        int p = skt.getLocalPort();
        skt.close();
        conf.set(Constants.PEER_PORT, new Integer(p).toString());
        conf.setInt(Constants.GROOM_RPC_PORT, p + 100);
    } catch (IOException ioe) {
        LOG.error("Can not find a free port for BSPPeer.", ioe);
    }
}

From source file:org.jkcsoft.java.util.JavaHelper.java

/**
 * @param server//from  ww  w  .  j a v a  2 s .c o  m
 */
public static void safeClose(ServerSocket server) {
    if (server != null) {
        try {
            server.close();
        } catch (IOException e) {
            log.error("Upon closing", e);
        }
    } else {
        log.warn("Null ServerSocket sent to safeClose()");
    }
}

From source file:Main.java

/**
 * Unconditionally close a <code>ServerSocket</code>.
 * <p/>//from w  ww  . java 2s.com
 * Equivalent to {@link ServerSocket#close()}, except any exceptions will be ignored.
 * This is typically used in finally blocks.
 * <p/>
 * Example code:
 * <pre>
 *   ServerSocket socket = null;
 *   try {
 *       socket = new ServerSocket();
 *       // process socket
 *       socket.close();
 *   } catch (Exception e) {
 *       // error handling
 *   } finally {
 *       IOUtils.closeQuietly(socket);
 *   }
 * </pre>
 *
 * @param sock the ServerSocket to close, may be null or already closed
 * @since 2.2
 */
public static void closeQuietly(ServerSocket sock) {
    if (sock != null) {
        try {
            sock.close();
        } catch (IOException ioe) {
            // ignored
        }
    }
}

From source file:VASSAL.tools.io.IOUtils.java

/**
 * Close a {@link ServerSocket} unconditionally. Equivalent to
 * calling <code>s.close()</code> when <code>s</code> is nonnull.
 * {@link IOException}s are swallowed, as there is generally
 * nothing that can be done about exceptions on closing.
 *
 * @param s a (possibly <code>null</code>) <code>ServerSocket</code>
 *///  w  w w. ja  va2  s. c  o  m
// FIXME: Remove in Java 1.6+, when ServerSocket implements Closeable
public static void closeQuietly(ServerSocket s) {
    if (s == null)
        return;

    try {
        s.close();
    } catch (IOException e) {
        // ignore
    }
}

From source file:sf.net.experimaestro.manager.js.SSHServer.java

/**
 * Finds a free local socket port.//from   w w  w.j  a v  a  2s.co m
 *
 * @return a free local socket port.
 * @throws java.io.IOException
 */
public static int findFreeLocalPort() throws IOException {
    ServerSocket server = new ServerSocket(0);
    try {
        return server.getLocalPort();
    } finally {
        server.close();
    }
}

From source file:org.qi4j.library.shiro.AbstractServletTestSupport.java

protected static int findFreePortOnIfaceWithPreference(final InetAddress address, final int prefered)
        throws IOException {
    ServerSocket server;
    if (prefered > 0) {
        server = new ServerSocket(prefered, 1, address);
    } else {/*from  w w  w  . ja  va2 s .  c o  m*/
        server = new ServerSocket(0, 1, address);
    }
    int port = server.getLocalPort();
    server.close();
    return port;
}

From source file:com.twosigma.beakerx.kernel.MagicKernelManager.java

public static Integer findFreePort() {
    ServerSocket socket = null;
    try {//from  w  w w.ja va  2 s .  c  o m
        socket = new ServerSocket(0);
        socket.setReuseAddress(true);
        int port = socket.getLocalPort();
        try {
            socket.close();
        } catch (IOException e) {
        }
        return port;
    } catch (IOException e) {
    } finally {
        if (socket != null) {
            try {
                socket.close();
            } catch (IOException e) {
            }
        }
    }
    return null;
}

From source file:org.apache.sshd.PortForwardingTest.java

private static int getFreePort() throws Exception {
    ServerSocket s = new ServerSocket(0);
    try {/*w ww  . j a  v a  2 s. c o m*/
        return s.getLocalPort();
    } finally {
        s.close();
    }
}