Examples of java.nio.channels.ServerSocketChannel

java.nio.channels.ServerSocketChannel
A selectable channel for stream-oriented listening sockets.
Server-socket channels are not a complete abstraction of listening network sockets. Binding and the manipulation of socket options must be done through an associated {@link java.net.ServerSocket} object obtained byinvoking the {@link #socket() socket} method. It is not possible to createa channel for an arbitrary, pre-existing server socket, nor is it possible to specify the {@link java.net.SocketImpl} object to be used by a serversocket associated with a server-socket channel.
A server-socket channel is created by invoking the {@link #open() open}method of this class. A newly-created server-socket channel is open but not yet bound. An attempt to invoke the {@link #accept() accept} method of anunbound server-socket channel will cause a {@link NotYetBoundException} tobe thrown. A server-socket channel can be bound by invoking one of the {@link java.net.ServerSocket#bind(java.net.SocketAddress,int) bind} methodsof an associated server socket.
Server-socket channels are safe for use by multiple concurrent threads.
@author Mark Reinhold @author JSR-51 Expert Group @version 1.25, 05/11/17 @since 1.4

      return (InetSocketAddress)acceptChannel.socket().getLocalSocketAddress();
    }


    void doAccept(SelectionKey key) throws IOException, OutOfMemoryError {
      Connection c;
      ServerSocketChannel server = (ServerSocketChannel) key.channel();


      SocketChannel channel;
      while ((channel = server.accept()) != null) {
        channel.configureBlocking(false);
        channel.socket().setTcpNoDelay(tcpNoDelay);
        channel.socket().setKeepAlive(tcpKeepAlive);


        Reader reader = getReader();

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     * Listen on the specified port.
     * @param localEp InetAddress whose port to listen on.
     */
    public void listen(InetAddress localEp) throws IOException, ConfigurationException
    {        
        ServerSocketChannel serverChannel = ServerSocketChannel.open();
        final ServerSocket ss = serverChannel.socket();
        ss.setReuseAddress(true);
        InetSocketAddress address = new InetSocketAddress(localEp, DatabaseDescriptor.getStoragePort());
        try
        {
            ss.bind(address);

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     * Listen on the specified port.
     * @param localEp InetAddress whose port to listen on.
     */
    public void listen(InetAddress localEp) throws IOException
    {        
        ServerSocketChannel serverChannel = ServerSocketChannel.open();
        final ServerSocket ss = serverChannel.socket();
        ss.setReuseAddress(true);
        ss.bind(new InetSocketAddress(localEp, DatabaseDescriptor.getStoragePort()));
        socketThread = new SocketThread(ss, "ACCEPT-" + localEp);
        socketThread.start();
        listenGate.signalAll();

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    public <C> Listener<C> createListener(String host, int port, C context)
    {
        try
        {
            ServerSocketChannel serverSocketChannel = ServerSocketChannel.open();
            serverSocketChannel.configureBlocking(false);
            ServerSocket serverSocket = serverSocketChannel.socket();
            serverSocket.bind(new InetSocketAddress(host, port));
            return createListener(serverSocketChannel, context);
        }
        catch (ClosedChannelException e)
        {

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    InetSocketAddress getAddress() {
      return (InetSocketAddress)acceptChannel.socket().getLocalSocketAddress();
    }
    
    void doAccept(SelectionKey key) throws InterruptedException, IOException,  OutOfMemoryError {
      ServerSocketChannel server = (ServerSocketChannel) key.channel();
      SocketChannel channel;
      while ((channel = server.accept()) != null) {


        channel.configureBlocking(false);
        channel.socket().setTcpNoDelay(tcpNoDelay);
        channel.socket().setKeepAlive(true);

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            ss.add(SSLFactory.getServerSocket(DatabaseDescriptor.getEncryptionOptions(), localEp, DatabaseDescriptor.getSSLStoragePort()));
            // setReuseAddress happens in the factory.
            logger_.info("Starting Encrypted Messaging Service on SSL port {}", DatabaseDescriptor.getSSLStoragePort());
        }
        
        ServerSocketChannel serverChannel = ServerSocketChannel.open();
        ServerSocket socket = serverChannel.socket();
        socket.setReuseAddress(true);
        InetSocketAddress address = new InetSocketAddress(localEp, DatabaseDescriptor.getStoragePort());
        try
        {
            socket.bind(address);

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      return (InetSocketAddress)acceptChannel.socket().getLocalSocketAddress();
    }


    void doAccept(SelectionKey key) throws IOException, OutOfMemoryError {
      Connection c;
      ServerSocketChannel server = (ServerSocketChannel) key.channel();


      SocketChannel channel;
      while ((channel = server.accept()) != null) {
        channel.configureBlocking(false);
        channel.socket().setTcpNoDelay(tcpNoDelay);
        channel.socket().setKeepAlive(tcpKeepAlive);


        Reader reader = getReader();

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            ss.add(SSLFactory.getServerSocket(DatabaseDescriptor.getEncryptionOptions(), localEp, DatabaseDescriptor.getSSLStoragePort()));
            // setReuseAddress happens in the factory.
            logger_.info("Starting Encrypted Messaging Service on SSL port {}", DatabaseDescriptor.getSSLStoragePort());
        }
        
        ServerSocketChannel serverChannel = ServerSocketChannel.open();
        ServerSocket socket = serverChannel.socket();
        socket.setReuseAddress(true);
        InetSocketAddress address = new InetSocketAddress(localEp, DatabaseDescriptor.getStoragePort());
        try
        {
            socket.bind(address);

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            return;
        }
        int endPort = maxPort;
        if (endPort < startPort)
            endPort = startPort;
        ServerSocketChannel ssc = ServerSocketChannel.open();
        ssc.configureBlocking(false);
        for( int i=startPort; i<=endPort; i++ ) {
            try {
                InetSocketAddress iddr = null;
                if( inet == null ) {
                    iddr = new InetSocketAddress( i);
                } else {
                    iddr=new InetSocketAddress( inet, i);
                }
                sSocket = ssc.socket();
                sSocket.bind(iddr);
                port=i;
                break;
            } catch( IOException ex ) {
                if(log.isInfoEnabled())
                    log.info("Port busy " + i + " " + ex.toString());
                sSocket = null;
            }
        }


        if( sSocket==null ) {
            log.error("Can't find free port " + startPort + " " + endPort );
            return;
        }
        if(log.isInfoEnabled())
            log.info("JK: ajp13 listening on " + getAddress() + ":" + port );


        selector = Selector.open();
        ssc.register(selector, SelectionKey.OP_ACCEPT);
        // If this is not the base port and we are the 'main' channleSocket and
        // SHM didn't already set the localId - we'll set the instance id
        if( "channelNioSocket".equals( name ) &&
            port != startPort &&
            (wEnv.getLocalId()==0) ) {

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     * Listen on the specified port.
     * @param localEp InetAddress whose port to listen on.
     */
    public void listen(InetAddress localEp) throws IOException
    {        
        ServerSocketChannel serverChannel = ServerSocketChannel.open();
        final ServerSocket ss = serverChannel.socket();
        ss.setReuseAddress(true);
        ss.bind(new InetSocketAddress(localEp, DatabaseDescriptor.getStoragePort()));
        socketThread = new SocketThread(ss, "ACCEPT-" + localEp);
        socketThread.start();
        listenGate.signalAll();

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