Example usage for java.net ServerSocket accept

Introduction

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

Prototype

public Socket accept() throws IOException 

Source Link

Document

Listens for a connection to be made to this socket and accepts it.

Usage

From source file:org.apache.stratos.python.cartridge.agent.test.PythonAgentTestManager.java

/**
 * Start server socket//from w w  w . j  a v  a 2 s  . c o  m
 *
 * @param port
 */
protected void startServerSocket(final int port) {
    Thread socketThread = new Thread(new Runnable() {
        @Override
        public void run() {
            while (true) { // do this infinitely until test is complete
                try {
                    ServerSocket serverSocket = new ServerSocket(port);
                    serverSocketMap.put(port, serverSocket);
                    log.info("Server socket started on port: " + port);
                    Socket socket = serverSocket.accept();
                    log.info("Client connected to [port] " + port);

                    InputStream is = socket.getInputStream();
                    byte[] buffer = new byte[1024];
                    int read;
                    while (true) {
                        if (socket.isClosed()) {
                            log.info("Socket for [port] " + port + " has been closed.");
                            break;
                        }
                        if ((read = is.read(buffer)) != -1) {
                            String output = new String(buffer, 0, read);
                            log.info("Message received for [port] " + port + ", [message] " + output);
                        }
                    }
                } catch (IOException e) {
                    String message = "Could not start server socket: [port] " + port;
                    log.error(message, e);
                    throw new RuntimeException(message, e);
                }
            }
        }
    });
    socketThread.start();
}

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From source file:com.appeligo.channelfeed.CaptureApp.java

private void catchCaptions(final String captionPort) {
    Thread serverThread = new Thread("Caption Catcher") {
        @Override//  w ww . j  a  v a2 s  .  co  m
        public void run() {
            try {
                int count = 0;
                ServerSocket server = new ServerSocket(Integer.parseInt(captionPort));
                while (true) {
                    try {
                        count++;
                        VBISocketReaderThread vbiSocketReaderThread = new VBISocketReaderThread(
                                "VBISocketReader " + count + "@" + captionPort, server.accept());

                        Destinations destinations = new Destinations();
                        destinations.setCaptionDocumentRoot(captionDocumentRoot);
                        destinations.setDestinationURLs(destinationURLs, destinationRaws);
                        destinations.setSendXDS(false);
                        destinations.setSendITV(false);
                        if (writing) {
                            destinations.setFileWriter(new FileWriter());
                        }

                        vbiSocketReaderThread.setEpgService(getEpgService());
                        vbiSocketReaderThread.setDestinations(destinations);

                        destinations.connect();
                        vbiSocketReaderThread.start();

                    } catch (MalformedURLException e1) {
                        log.error("Exception on a channel", e1);
                    } catch (IOException e1) {
                        log.error("Exception on a channel", e1);
                    }
                }
            } catch (IOException e1) {
                log.error("Exception with server socket", e1);
            } catch (NumberFormatException e1) {
                log.error("Bad port number: " + captionPort, e1);
                return;
            }
        }
    };
    serverThread.start();
}

---

From source file:org.apache.flink.streaming.api.functions.source.SocketTextStreamFunctionTest.java

@Test
public void testSocketSourceSimpleOutput() throws Exception {
    ServerSocket server = new ServerSocket(0);
    Socket channel = null;//from w ww .j a  v a  2  s .  c  o m

    try {
        SocketTextStreamFunction source = new SocketTextStreamFunction(LOCALHOST, server.getLocalPort(), "\n",
                0);

        SocketSourceThread runner = new SocketSourceThread(source, "test1", "check");
        runner.start();

        channel = server.accept();
        OutputStreamWriter writer = new OutputStreamWriter(channel.getOutputStream());

        writer.write("test1\n");
        writer.write("check\n");
        writer.flush();
        runner.waitForNumElements(2);

        runner.cancel();
        runner.interrupt();

        runner.waitUntilDone();

        channel.close();
    } finally {
        if (channel != null) {
            IOUtils.closeQuietly(channel);
        }
        IOUtils.closeQuietly(server);
    }
}

---

From source file:org.echocat.jomon.net.dns.DnsServer.java

@Nonnull
private Socket accept(@Nonnull ServerSocket sock) throws IOException {
    try {// ww  w  . j  av  a 2 s  . c om
        return sock.accept();
    } catch (final SocketException e) {
        if (sock.isClosed()) {
            final InterruptedIOException toThrow = new InterruptedIOException();
            toThrow.initCause(e);
            throw toThrow;
        } else {
            throw e;
        }
    }
}

---

From source file:org.apache.flink.streaming.api.functions.source.SocketTextStreamFunctionTest.java

@Test
public void testSocketSourceOutputWithRetries() throws Exception {
    ServerSocket server = new ServerSocket(0);
    Socket channel = null;/*from   w  w  w .  ja v a 2  s.  c  o  m*/

    try {
        SocketTextStreamFunction source = new SocketTextStreamFunction(LOCALHOST, server.getLocalPort(), "\n",
                10, 100);

        SocketSourceThread runner = new SocketSourceThread(source, "test1", "check");
        runner.start();

        // first connection: nothing
        channel = server.accept();
        channel.close();

        // second connection: first string
        channel = server.accept();
        OutputStreamWriter writer = new OutputStreamWriter(channel.getOutputStream());
        writer.write("test1\n");
        writer.close();
        channel.close();

        // third connection: nothing
        channel = server.accept();
        channel.close();

        // forth connection: second string
        channel = server.accept();
        writer = new OutputStreamWriter(channel.getOutputStream());
        writer.write("check\n");
        writer.flush();

        runner.waitForNumElements(2);
        runner.cancel();
        runner.waitUntilDone();
    } finally {
        if (channel != null) {
            IOUtils.closeQuietly(channel);
        }
        IOUtils.closeQuietly(server);
    }
}

---

From source file:org.apache.flink.streaming.api.functions.source.SocketTextStreamFunctionTest.java

@Test
public void testSocketSourceOutputInfiniteRetries() throws Exception {
    ServerSocket server = new ServerSocket(0);
    Socket channel = null;/*  ww  w  .j  a  v  a 2 s .  co  m*/

    try {
        SocketTextStreamFunction source = new SocketTextStreamFunction(LOCALHOST, server.getLocalPort(), "\n",
                -1, 100);

        SocketSourceThread runner = new SocketSourceThread(source, "test1", "check");
        runner.start();

        // first connection: nothing
        channel = server.accept();
        channel.close();

        // second connection: first string
        channel = server.accept();
        OutputStreamWriter writer = new OutputStreamWriter(channel.getOutputStream());
        writer.write("test1\n");
        writer.close();
        channel.close();

        // third connection: nothing
        channel = server.accept();
        channel.close();

        // forth connection: second string
        channel = server.accept();
        writer = new OutputStreamWriter(channel.getOutputStream());
        writer.write("check\n");
        writer.flush();

        runner.waitForNumElements(2);
        runner.cancel();
        runner.waitUntilDone();
    } finally {
        if (channel != null) {
            IOUtils.closeQuietly(channel);
        }
        IOUtils.closeQuietly(server);
    }
}

---

From source file:org.apache.flink.streaming.api.functions.source.SocketTextStreamFunctionTest.java

@Test
public void testSocketSourceOutputAcrossRetries() throws Exception {
    ServerSocket server = new ServerSocket(0);
    Socket channel = null;/*from   ww  w. j  a  v  a 2  s . co  m*/

    try {
        SocketTextStreamFunction source = new SocketTextStreamFunction(LOCALHOST, server.getLocalPort(), "\n",
                10, 100);

        SocketSourceThread runner = new SocketSourceThread(source, "test1", "check1", "check2");
        runner.start();

        // first connection: nothing
        channel = server.accept();
        channel.close();

        // second connection: first string
        channel = server.accept();
        OutputStreamWriter writer = new OutputStreamWriter(channel.getOutputStream());
        writer.write("te");
        writer.close();
        channel.close();

        // third connection: nothing
        channel = server.accept();
        channel.close();

        // forth connection: second string
        channel = server.accept();
        writer = new OutputStreamWriter(channel.getOutputStream());
        writer.write("st1\n");
        writer.write("check1\n");
        writer.write("check2\n");
        writer.flush();

        runner.waitForNumElements(2);
        runner.cancel();
        runner.waitUntilDone();
    } finally {
        if (channel != null) {
            IOUtils.closeQuietly(channel);
        }
        IOUtils.closeQuietly(server);
    }
}

---

From source file:com.apporiented.hermesftp.server.AbstractFtpServer.java

/**
 * {@inheritDoc}/*  w ww .  ja v a 2  s  .c o  m*/
 */
public void run() {
    setStatus(SERVER_STATUS_INIT);
    ServerSocket serverSocket = null;
    try {
        getUserManager().load();
        serverSocket = createServerSocket();
        serverSocket.setSoTimeout(DEFAULT_TIMEOUT);
        setStatus(SERVER_STATUS_READY);
        while (!isTerminated()) {
            Socket clientSocket;
            try {
                clientSocket = serverSocket.accept();
            } catch (SocketTimeoutException e) {
                continue;
            }

            /* Check blacklisted IP v4 addresses */

            InetAddress clientAddr = clientSocket.getInetAddress();
            InetAddress localAddr = clientSocket.getLocalAddress();

            log.info("Client requests connection. ClientAddr.: " + clientAddr + ", LocalAddr.: " + localAddr);

            String listKey = NetUtils.isIPv6(clientAddr) ? FtpConstants.OPT_IPV6_BLACK_LIST
                    : FtpConstants.OPT_IPV4_BLACK_LIST;
            String ipBlackList = getOptions().getString(listKey, "");

            if (NetUtils.checkIPMatch(ipBlackList, clientAddr)) {
                log.info("Client with IP address " + clientAddr.getHostAddress() + " rejected (blacklisted).");
                IOUtils.closeGracefully(clientSocket);
                continue;
            }

            /* Initialize session context */
            FtpSessionContext ctx = createFtpContext();
            ctx.check();
            ctx.setCreationTime(new Date());
            ctx.setClientSocket(clientSocket);
            FtpSession session = (FtpSession) getApplicationContext().getBean(BEAN_SESSION);
            session.setFtpContext(ctx);

            /* Start session */
            log.debug("Accepting connection to " + clientAddr.getHostAddress());
            session.start();
            registerSession(session);

        }
        setStatus(SERVER_STATUS_HALTED);
    } catch (IOException e) {
        setStatus(SERVER_STATUS_UNDEF);
        log.error(e, e);
    } finally {
        terminateAllClientSessions();
        IOUtils.closeGracefully(serverSocket);
    }

}

---

From source file:org.y20k.transistor.helpers.MetadataHelper.java

private void createShoutcastProxyConnection() {
    closeShoutcastProxyConnection();//from w  w  w.j  av a  2s.  c om
    mProxyRunning = true;
    final StringBuffer shoutcastProxyUri = new StringBuffer();

    try {
        new Thread(new Runnable() {
            @Override
            public void run() {
                Socket proxy = null;
                URLConnection connection = null;

                try {
                    final ServerSocket proxyServer = new ServerSocket(0, 1, InetAddress.getLocalHost());
                    shoutcastProxyUri.append("http://localhost:")
                            .append(String.valueOf(proxyServer.getLocalPort())).append("/");
                    LogHelper.v(LOG_TAG, "createProxyConnection: " + shoutcastProxyUri.toString());

                    proxy = proxyServer.accept();
                    mProxyConnection = proxy;
                    proxyServer.close();

                    connection = new URL(mStreamUri).openConnection();

                    shoutcastProxyReaderLoop(proxy, connection);

                } catch (Exception e) {
                    LogHelper.e(LOG_TAG, "Error: Unable to create proxy server. (" + e + ")");
                }

                mProxyRunning = false;

                try {
                    if (connection != null) {
                        ((HttpURLConnection) connection).disconnect();
                    }
                } catch (Exception ee) {
                    LogHelper.e(LOG_TAG, "Error: Unable to disconnect HttpURLConnection. (" + ee + ")");
                }

                try {
                    if (proxy != null && !proxy.isClosed()) {
                        proxy.close();
                    }
                } catch (Exception eee) {
                    LogHelper.e(LOG_TAG, "Error: Unable to close proxy. (" + eee + ")");
                }
            }
        }).start();

        while (shoutcastProxyUri.length() == 0) {
            try {
                Thread.sleep(10);
            } catch (Exception e) {
                LogHelper.e(LOG_TAG, "Error: Unable to Thread.sleep. (" + e + ")");
            }
        }
        mShoutcastProxy = shoutcastProxyUri.toString();

    } catch (Exception e) {
        LogHelper.e(LOG_TAG,
                "createProxyConnection: Cannot create new listening socket on localhost: " + e.toString());
        mProxyRunning = false;
        mShoutcastProxy = "";
    }
}

---

From source file:TalkServerThread.java

protected TalkServerThread connectToClient(ServerSocket serverRSocket) {
    Socket rendezvousSocket = null;
    TalkServerThread tst = null;//from ww w  .j a v  a  2s  .co  m

    //Listen for client connection on the rendezvous socket.
    try {
        rendezvousSocket = serverRSocket.accept();
    } catch (IOException e) {
        System.err.println("Accept failed.");
        e.printStackTrace();
        return null;
    }

    //Create a thread to handle this connection.
    try {
        tst = new TalkServerThread(rendezvousSocket, this);
        tst.start();
    } catch (Exception e) {
         System.err.println("Couldn't create TalkServerThread:");
        e.printStackTrace();
        return null;
    }

    writeToStream("Successful connection. "
                  + "Please wait for second applet to connect...",
                  tst.os);
    return tst;
}

---

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