Examples of java.net.ServerSocket.accept()

java.net.ServerSocket.accept()
Listens for a connection to be made to this socket and accepts it. The method blocks until a connection is made.
A new Socket s is created and, if there is a security manager, the security manager's checkAccept method is called with s.getInetAddress().getHostAddress() and s.getPort() as its arguments to ensure the operation is allowed. This could result in a SecurityException. @exception IOException if an I/O error occurs when waiting for aconnection. @exception SecurityException if a security manager exists and its checkAccept method doesn't allow the operation. @exception SocketTimeoutException if a timeout was previously set with setSoTimeout andthe timeout has been reached. @exception java.nio.channels.IllegalBlockingModeException if this socket has an associated channel, the channel is in non-blocking mode, and there is no connection ready to be accepted @return the new Socket @see SecurityManager#checkAccept @revised 1.4 @spec JSR-51


        while (keepRunning) {
          Socket socket = null;


          try {
            socket = serverSocket.accept();
          } catch (InterruptedIOException e) {
            // timeout occurred, so just loop
          } catch (SocketException e) {
            getLogger().error(
              "exception accepting socket, shutting down server socket.", e);

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    {
        System.out.println("MockServer listening on port " + port);
        System.out.println("Output file = " + responseFile);


        ServerSocket serverSocket = new ServerSocket(port);
        Socket incoming = serverSocket.accept();
//        System.out.println("Got the socket " + incoming);
        InputStream inputStream = incoming.getInputStream();


        InputStreamReader inputStreamReader =
            new InputStreamReader(inputStream);

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            // the data connection.  It may be desirable to let this be a
            // separately configurable value.  In any case, we really want
            // to allow preventing the accept from blocking indefinitely.
            if (__dataTimeout >= 0)
                server.setSoTimeout(__dataTimeout);
            socket = server.accept();
            server.close();
        }
        else
        { // We must be in PASSIVE_LOCAL_DATA_CONNECTION_MODE

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        _output_.write(Integer.toString(server.getLocalPort()).getBytes());
        _output_.write('\0');
        _output_.flush();


        socket = server.accept();
        server.close();


        if (isRemoteVerificationEnabled() && !verifyRemote(socket))
        {
            socket.close();

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        try {
            // Set the timeout to 1ms as all we care about is if it throws an
            // SSLException on accept. 
            socket.setSoTimeout(1);


            socket.accept();
            // Will never get here - no client can connect to an unbound port
        } catch (SSLException ssle) {
            // SSL configuration is invalid. Possibly cert doesn't match ciphers
            IOException ioe = new IOException(sm.getString(
                    "jsse.invalid_ssl_conf", ssle.getMessage()));

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  {
    ConnectionInfo result = new ConnectionInfo();
    ServerSocket serverSocket = new ServerSocket(clientPort);
    serverSocket.setReuseAddress(true);
    log("Waiting for connections on port " + clientPort);
    Socket socket = serverSocket.accept();
    result.setSocket(socket);
    
    return result;
  }

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                Socket socket = null;
                StringBuilder command = new StringBuilder();
                try {
                    InputStream stream;
                    try {
                        socket = serverSocket.accept();
                        socket.setSoTimeout(10 * 1000);  // Ten seconds
                        stream = socket.getInputStream();
                    } catch (AccessControlException ace) {
                        log.warn("StandardServer.accept security exception: "
                                + ace.getMessage(), ace);

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            while (running)
            {
                try
                {
                    // Listen on main socket
                    Socket clientSocket = mainSocket.accept();
                    if (running)
                    {
                        // Pass request to new proxy thread
                        Proxy thd = (Proxy) proxyClass.newInstance();
                        thd.configure(clientSocket, target);

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    public void test_socket_accept_Blocking_NotBound() throws IOException {
        // regression test for Harmony-748       
        ServerSocket gotSocket = serverChannel.socket();
        serverChannel.configureBlocking(true);
        try {
            gotSocket.accept();
            fail("Should throw an IllegalBlockingModeException");
        } catch (IllegalBlockingModeException e) {
            // expected
        }        
        serverChannel.close();

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        } catch (IllegalBlockingModeException e) {
            // expected
        }        
        serverChannel.close();
        try {
            gotSocket.accept();
            fail("Should throw an IllegalBlockingModeException");
        } catch (IllegalBlockingModeException e) {
            // expected
        }     
    }

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