Example usage for java.net ServerSocket getLocalPort

Introduction

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

Prototype

public int getLocalPort()

Source Link

Document

Returns the port number on which this socket is listening.

Usage

From source file:org.codice.ddf.catalog.ui.forms.SearchFormsSymbolsIT.java

private static void tryCloseSocket(@Nullable ServerSocket socket) {
    try {/*  w w w.  j  av a2 s. co  m*/
        if (socket != null) {
            socket.close();
        }
    } catch (IOException e) {
        throw new AssertionError(
                "Problem while enumerating ports (specifically, port " + socket.getLocalPort() + ")", e);
    }
}

From source file:test.integ.be.agiv.security.IPSTSTest.java

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

From source file:org.openspaces.test.client.executor.ExecutorUtils.java

/**
 * Get an anonymous port.//w  ww .  j a v  a 2s.  c o m
 *
 * @return An anonymous port created by instantiating a <code>java.net.ServerSocket</code> with
 * a port of 0.
 */
public static int getAnonymousPort() {
    // default port
    int port = 45467;

    java.net.ServerSocket socket;
    try {
        socket = new java.net.ServerSocket(0);
        port = socket.getLocalPort();
        socket.close();
    } catch (IOException e) {
        if (_logger.isWarnEnabled())
            _logger.warn("Failed to get anonymous socket port.", e);
    }

    return port;
}

From source file:org.paxml.selenium.rc.XSelenium.java

private static int getAvailablePort() {
    ServerSocket s = null;

    try {//from w ww  .ja v  a 2  s.c o  m
        s = new ServerSocket(0);
        return s.getLocalPort();
    } catch (IOException e) {
        throw new PaxmlRuntimeException(e);
    } finally {
        try {
            if (s != null) {
                s.close();
            }
        } catch (Exception e) {
            log.warn("Cannot close server socket of port: " + s.getLocalPort(), e);
        }
    }

}

From source file:com.ngdata.hbaseindexer.mr.HBaseIndexingOptionsTest.java

private static int getFreePort() {
    ServerSocket socket = null;
    try {//w  ww.  ja va2s  .c o m
        socket = new ServerSocket(0);
        return socket.getLocalPort();
    } catch (IOException e) {
        throw new RuntimeException("Error finding a free port", e);
    } finally {
        if (socket != null) {
            try {
                socket.close();
            } catch (IOException e) {
                throw new RuntimeException("Error closing ServerSocket used to detect a free port.", e);
            }
        }
    }
}

From source file:org.apache.smscserver.test.TestUtil.java

/**
 * Attempts to find a free port/*from  w  w  w  .j  a va 2  s .c  om*/
 * 
 * @param initPort
 *            The first port to try, before resolving to brute force searching
 * @throws IOException
 * 
 * @throws IOException
 */
public static int findFreePort(int initPort) throws IOException {
    int port = -1;
    ServerSocket tmpSocket = null;
    // first try the default port
    try {
        tmpSocket = new ServerSocket(initPort);

        port = initPort;

        System.out.println("Using default port: " + port);
    } catch (IOException e) {
        System.out.println("Failed to use specified port");
        // didn't work, try to find one dynamically
        try {
            int attempts = 0;

            while ((port < 1024) && (attempts < 2000)) {
                attempts++;

                tmpSocket = new ServerSocket(0);

                port = tmpSocket.getLocalPort();
            }

        } catch (IOException e1) {
            throw new IOException("Failed to find a port to use for testing: " + e1.getMessage());
        }
    } finally {
        if (tmpSocket != null) {
            try {
                tmpSocket.close();
            } catch (IOException e) {
                // ignore
            }
            tmpSocket = null;
        }
    }

    return port;
}

From source file:org.apache.helix.TestHelper.java

public static int getRandomPort() throws IOException {
    ServerSocket sock = new ServerSocket();
    sock.bind(null);//from ww  w  . j  av a 2 s.co  m
    int port = sock.getLocalPort();
    sock.close();
    return port;
}

From source file:org.apache.ftpserver.test.TestUtil.java

/**
 * Attempts to find a free port/*from  ww  w  .  java2s . co  m*/
 * @param initPort The first port to try, before resolving to 
 *   brute force searching
 * @throws IOException
 * 
 * @throws IOException
 */
public static int findFreePort(int initPort) throws IOException {
    int port = -1;
    ServerSocket tmpSocket = null;
    // first try the default port
    try {
        tmpSocket = new ServerSocket(initPort);

        port = initPort;

        System.out.println("Using default port: " + port);
    } catch (IOException e) {
        System.out.println("Failed to use specified port");
        // didn't work, try to find one dynamically
        try {
            int attempts = 0;

            while (port < 1024 && attempts < 2000) {
                attempts++;

                tmpSocket = new ServerSocket(0);

                port = tmpSocket.getLocalPort();
            }

        } catch (IOException e1) {
            throw new IOException("Failed to find a port to use for testing: " + e1.getMessage());
        }
    } finally {
        if (tmpSocket != null) {
            try {
                tmpSocket.close();
            } catch (IOException e) {
                // ignore
            }
            tmpSocket = null;
        }
    }

    return port;
}

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

/**
 * Return a free port number. There is no guarantee it will remain free, so it should be used immediately.
 *
 * @returns A free port for binding a local socket
 *//*  www.  ja  v  a2s . c  o m*/
public static int getFreeSocketPort() {
    int port = 0;
    try {
        ServerSocket s = new ServerSocket(0);
        port = s.getLocalPort();
        s.close();
        return port;
    } catch (IOException e) {
        // Could not get a free port. Return default port 0.
    }
    return port;
}

From source file:org.apache.flink.runtime.clusterframework.BootstrapTools.java

/**
 * Starts an ActorSystem with the given configuration listening at the address/ports.
 * @param configuration The Flink configuration
 * @param listeningAddress The address to listen at.
 * @param portRangeDefinition The port range to choose a port from.
 * @param logger The logger to output log information.
 * @return The ActorSystem which has been started
 * @throws Exception/*  www  .  j  a v  a  2  s .  c  o m*/
 */
public static ActorSystem startActorSystem(Configuration configuration, String listeningAddress,
        String portRangeDefinition, Logger logger) throws Exception {

    // parse port range definition and create port iterator
    Iterator<Integer> portsIterator;
    try {
        portsIterator = NetUtils.getPortRangeFromString(portRangeDefinition);
    } catch (Exception e) {
        throw new IllegalArgumentException("Invalid port range definition: " + portRangeDefinition);
    }

    while (portsIterator.hasNext()) {
        // first, we check if the port is available by opening a socket
        // if the actor system fails to start on the port, we try further
        ServerSocket availableSocket = NetUtils.createSocketFromPorts(portsIterator,
                new NetUtils.SocketFactory() {
                    @Override
                    public ServerSocket createSocket(int port) throws IOException {
                        return new ServerSocket(port);
                    }
                });

        int port;
        if (availableSocket == null) {
            throw new BindException("Unable to allocate further port in port range: " + portRangeDefinition);
        } else {
            port = availableSocket.getLocalPort();
            try {
                availableSocket.close();
            } catch (IOException ignored) {
            }
        }

        try {
            return startActorSystem(configuration, listeningAddress, port, logger);
        } catch (Exception e) {
            // we can continue to try if this contains a netty channel exception
            Throwable cause = e.getCause();
            if (!(cause instanceof org.jboss.netty.channel.ChannelException
                    || cause instanceof java.net.BindException)) {
                throw e;
            } // else fall through the loop and try the next port
        }
    }

    // if we come here, we have exhausted the port range
    throw new BindException("Could not start actor system on any port in port range " + portRangeDefinition);
}