Example usage for java.net ServerSocket ServerSocket

Introduction

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

Prototype

public ServerSocket(int port) throws IOException

Source Link

Document

Creates a server socket, bound to the specified port.

Usage

From source file:MiniCluster.java

/**
 * Runs the {@link MiniAccumuloCluster} given a -p argument with a property file. Establishes a shutdown port for asynchronous operation.
 * //w ww.  j av a 2  s  .  com
 * @param args
 *          An optional -p argument can be specified with the path to a valid properties file.
 */
public static void main(String[] args) throws Exception {
    Opts opts = new Opts();
    opts.parseArgs(MiniCluster.class.getName(), args);

    if (opts.printProps) {
        printProperties();
        System.exit(0);
    }

    int shutdownPort = 4445;

    final File miniDir;

    if (opts.prop.containsKey(DIRECTORY_PROP))
        miniDir = new File(opts.prop.getProperty(DIRECTORY_PROP));
    else
        miniDir = Files.createTempDir();

    String rootPass = opts.prop.containsKey(ROOT_PASSWORD_PROP) ? opts.prop.getProperty(ROOT_PASSWORD_PROP)
            : "secret";
    String instanceName = opts.prop.containsKey(INSTANCE_NAME_PROP) ? opts.prop.getProperty(INSTANCE_NAME_PROP)
            : "accumulo";
    MiniAccumuloConfig config = new MiniAccumuloConfig(miniDir, instanceName, rootPass);

    if (opts.prop.containsKey(NUM_T_SERVERS_PROP))
        config.setNumTservers(Integer.parseInt(opts.prop.getProperty(NUM_T_SERVERS_PROP)));
    if (opts.prop.containsKey(ZOO_KEEPER_PORT_PROP))
        config.setZooKeeperPort(Integer.parseInt(opts.prop.getProperty(ZOO_KEEPER_PORT_PROP)));
    //    if (opts.prop.containsKey(JDWP_ENABLED_PROP))
    //      config.setJDWPEnabled(Boolean.parseBoolean(opts.prop.getProperty(JDWP_ENABLED_PROP)));
    //    if (opts.prop.containsKey(ZOO_KEEPER_MEMORY_PROP))
    //      setMemoryOnConfig(config, opts.prop.getProperty(ZOO_KEEPER_MEMORY_PROP), ServerType.ZOOKEEPER);
    //    if (opts.prop.containsKey(TSERVER_MEMORY_PROP))
    //      setMemoryOnConfig(config, opts.prop.getProperty(TSERVER_MEMORY_PROP), ServerType.TABLET_SERVER);
    //    if (opts.prop.containsKey(MASTER_MEMORY_PROP))
    //      setMemoryOnConfig(config, opts.prop.getProperty(MASTER_MEMORY_PROP), ServerType.MASTER);
    //    if (opts.prop.containsKey(DEFAULT_MEMORY_PROP))
    //      setMemoryOnConfig(config, opts.prop.getProperty(DEFAULT_MEMORY_PROP));
    //    if (opts.prop.containsKey(SHUTDOWN_PORT_PROP))
    //      shutdownPort = Integer.parseInt(opts.prop.getProperty(SHUTDOWN_PORT_PROP));

    Map<String, String> siteConfig = new HashMap<String, String>();
    for (Map.Entry<Object, Object> entry : opts.prop.entrySet()) {
        String key = (String) entry.getKey();
        if (key.startsWith("site."))
            siteConfig.put(key.replaceFirst("site.", ""), (String) entry.getValue());
    }

    config.setSiteConfig(siteConfig);

    final MiniAccumuloCluster accumulo = new MiniAccumuloCluster(config);

    Runtime.getRuntime().addShutdownHook(new Thread() {
        @Override
        public void run() {
            try {
                accumulo.stop();
                FileUtils.deleteDirectory(miniDir);
                System.out.println("\nShut down gracefully on " + new Date());
            } catch (IOException e) {
                e.printStackTrace();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    });

    accumulo.start();

    printInfo(accumulo, shutdownPort);

    // start a socket on the shutdown port and block- anything connected to this port will activate the shutdown
    ServerSocket shutdownServer = new ServerSocket(shutdownPort);
    shutdownServer.accept();

    System.exit(0);
}

From source file:Main.java

public static int findFreePort() throws IOException {
    try (ServerSocket serverSocket = new ServerSocket(0)) {
        return serverSocket.getLocalPort();
    }/*from   w w w  .  j av a2s. com*/
}

From source file:Main.java

public static boolean portIsUsing(int port) {
    ServerSocket serverSocket = null;
    try {/*  ww  w  . j  a va 2 s  . c om*/
        serverSocket = new ServerSocket(port);
    } catch (IOException ex) {
        return true;
    }
    try {
        serverSocket.close();
    } catch (IOException ex) {
    }
    return false;
}

From source file:LocalScan.java

private static void testPort(int i) {
    try {//from www .  j  a  v  a  2  s  .co m
        ServerSocket sock = new ServerSocket(i);
    } catch (java.io.IOException e) {
        System.out.println("Port " + i + " in use.");
    }
}

From source file:org.apache.accumulo.minicluster.MiniAccumuloRunner.java

/**
 * Runs the {@link MiniAccumuloCluster} given a -p argument with a property file. Establishes a shutdown port for asynchronous operation.
 *
 * @param args// www.j a  v  a2  s .com
 *          An optional -p argument can be specified with the path to a valid properties file.
 */
public static void main(String[] args) throws IOException, InterruptedException {
    Opts opts = new Opts();
    opts.parseArgs(MiniAccumuloRunner.class.getName(), args);

    if (opts.printProps) {
        printProperties();
        System.exit(0);
    }

    int shutdownPort = 4445;

    final File miniDir;

    if (opts.prop.containsKey(DIRECTORY_PROP))
        miniDir = new File(opts.prop.getProperty(DIRECTORY_PROP));
    else
        miniDir = Files.createTempDir();

    String rootPass = opts.prop.containsKey(ROOT_PASSWORD_PROP) ? opts.prop.getProperty(ROOT_PASSWORD_PROP)
            : "secret";

    MiniAccumuloConfig config = new MiniAccumuloConfig(miniDir, rootPass);

    if (opts.prop.containsKey(INSTANCE_NAME_PROP))
        config.setInstanceName(opts.prop.getProperty(INSTANCE_NAME_PROP));
    if (opts.prop.containsKey(NUM_T_SERVERS_PROP))
        config.setNumTservers(Integer.parseInt(opts.prop.getProperty(NUM_T_SERVERS_PROP)));
    if (opts.prop.containsKey(ZOO_KEEPER_PORT_PROP))
        config.setZooKeeperPort(Integer.parseInt(opts.prop.getProperty(ZOO_KEEPER_PORT_PROP)));
    if (opts.prop.containsKey(ZOO_KEEPER_STARTUP_TIME_PROP))
        config.setZooKeeperStartupTime(Long.parseLong(opts.prop.getProperty(ZOO_KEEPER_STARTUP_TIME_PROP)));
    if (opts.prop.containsKey(EXISTING_ZOO_KEEPERS_PROP))
        config.getImpl().setExistingZooKeepers(opts.prop.getProperty(EXISTING_ZOO_KEEPERS_PROP));
    if (opts.prop.containsKey(JDWP_ENABLED_PROP))
        config.setJDWPEnabled(Boolean.parseBoolean(opts.prop.getProperty(JDWP_ENABLED_PROP)));
    if (opts.prop.containsKey(ZOO_KEEPER_MEMORY_PROP))
        setMemoryOnConfig(config, opts.prop.getProperty(ZOO_KEEPER_MEMORY_PROP), ServerType.ZOOKEEPER);
    if (opts.prop.containsKey(TSERVER_MEMORY_PROP))
        setMemoryOnConfig(config, opts.prop.getProperty(TSERVER_MEMORY_PROP), ServerType.TABLET_SERVER);
    if (opts.prop.containsKey(MASTER_MEMORY_PROP))
        setMemoryOnConfig(config, opts.prop.getProperty(MASTER_MEMORY_PROP), ServerType.MASTER);
    if (opts.prop.containsKey(DEFAULT_MEMORY_PROP))
        setMemoryOnConfig(config, opts.prop.getProperty(DEFAULT_MEMORY_PROP));
    if (opts.prop.containsKey(SHUTDOWN_PORT_PROP))
        shutdownPort = Integer.parseInt(opts.prop.getProperty(SHUTDOWN_PORT_PROP));

    Map<String, String> siteConfig = new HashMap<String, String>();
    for (Map.Entry<Object, Object> entry : opts.prop.entrySet()) {
        String key = (String) entry.getKey();
        if (key.startsWith("site."))
            siteConfig.put(key.replaceFirst("site.", ""), (String) entry.getValue());
    }

    config.setSiteConfig(siteConfig);

    final MiniAccumuloCluster accumulo = new MiniAccumuloCluster(config);

    Runtime.getRuntime().addShutdownHook(new Thread() {
        @Override
        public void run() {
            try {
                accumulo.stop();
            } catch (IOException e) {
                log.error("IOException attempting to stop Accumulo.", e);
                return;
            } catch (InterruptedException e) {
                log.error("InterruptedException attempting to stop Accumulo.", e);
                return;
            }

            try {
                FileUtils.deleteDirectory(miniDir);
            } catch (IOException e) {
                log.error("IOException attempting to clean up miniDir.", e);
                return;
            }

            System.out.println("\nShut down gracefully on " + new Date());
        }
    });

    accumulo.start();

    printInfo(accumulo, shutdownPort);

    // start a socket on the shutdown port and block- anything connected to this port will activate the shutdown
    try (ServerSocket shutdownServer = new ServerSocket(shutdownPort)) {
        shutdownServer.accept().close();
    }

    System.exit(0);
}

From source file:SimpleProxyServer.java

/**
 * runs a single-threaded proxy server on
 * the specified local port. It never returns.
 *//*from w w  w.j a va  2s. c o  m*/
public static void runServer(String host, int remoteport, int localport) throws IOException {
    // Create a ServerSocket to listen for connections with
    ServerSocket ss = new ServerSocket(localport);

    final byte[] request = new byte[1024];
    byte[] reply = new byte[4096];

    while (true) {
        Socket client = null, server = null;
        try {
            // Wait for a connection on the local port
            client = ss.accept();

            final InputStream streamFromClient = client.getInputStream();
            final OutputStream streamToClient = client.getOutputStream();

            // Make a connection to the real server.
            // If we cannot connect to the server, send an error to the
            // client, disconnect, and continue waiting for connections.
            try {
                server = new Socket(host, remoteport);
            } catch (IOException e) {
                PrintWriter out = new PrintWriter(streamToClient);
                out.print("Proxy server cannot connect to " + host + ":" + remoteport + ":\n" + e + "\n");
                out.flush();
                client.close();
                continue;
            }

            // Get server streams.
            final InputStream streamFromServer = server.getInputStream();
            final OutputStream streamToServer = server.getOutputStream();

            // a thread to read the client's requests and pass them
            // to the server. A separate thread for asynchronous.
            Thread t = new Thread() {
                public void run() {
                    int bytesRead;
                    try {
                        while ((bytesRead = streamFromClient.read(request)) != -1) {
                            streamToServer.write(request, 0, bytesRead);
                            streamToServer.flush();
                        }
                    } catch (IOException e) {
                    }

                    // the client closed the connection to us, so close our
                    // connection to the server.
                    try {
                        streamToServer.close();
                    } catch (IOException e) {
                    }
                }
            };

            // Start the client-to-server request thread running
            t.start();

            // Read the server's responses
            // and pass them back to the client.
            int bytesRead;
            try {
                while ((bytesRead = streamFromServer.read(reply)) != -1) {
                    streamToClient.write(reply, 0, bytesRead);
                    streamToClient.flush();
                }
            } catch (IOException e) {
            }

            // The server closed its connection to us, so we close our
            // connection to our client.
            streamToClient.close();
        } catch (IOException e) {
            System.err.println(e);
        } finally {
            try {
                if (server != null)
                    server.close();
                if (client != null)
                    client.close();
            } catch (IOException e) {
            }
        }
    }
}

From source file:org.carrot2.util.httpclient.HttpClientFactoryTest.java

@BeforeClass
public static void setup() throws Exception {
    serverSocket = new ServerSocket(/* any */0);

    pseudoServer = new Thread() {
        public void run() {
            try {
                Socket socket;/*w  w  w  .j  a va 2s . c o m*/
                while ((socket = serverSocket.accept()) != null) {
                    sockets.add(socket);
                }
            } catch (SocketException e) {
                // Ignore, socket closed.
            } catch (IOException e) {
                throw new RuntimeException();
            }
        }
    };
}

From source file:Main.java

public Main() throws IOException {
    serverSocket = new ServerSocket(8008);
    serverSocket.setSoTimeout(10000);
}

From source file:Main.java

public Main() throws IOException {
    serverSocket = new ServerSocket(8008);
    serverSocket.setSoTimeout(10000);/*  w  w w . jav  a 2s .c  o m*/
    System.out.println(serverSocket.getInetAddress());
}

From source file:Main.java

public Main() throws IOException {
    serverSocket = new ServerSocket(8008);
    serverSocket.setSoTimeout(10000);

    System.out.println(serverSocket.isClosed());
}