Examples of org.eclipse.jetty.server.nio.SelectChannelConnector

org.eclipse.jetty.server.nio.SelectChannelConnector
Selecting NIO connector.
This connector uses efficient NIO buffers with a non blocking threading model. Direct NIO buffers are used and threads are only allocated to connections with requests. Synchronization is used to simulate blocking for the servlet API, and any unflushed content at the end of request handling is written asynchronously.

This connector is best used when there are a many connections that have idle periods.

When used with {@link org.eclipse.jetty.continuation.Continuation}, threadless waits are supported. If a filter or servlet returns after calling {@link Continuation#suspend()} or when aruntime exception is thrown from a call to {@link Continuation#undispatch()}, Jetty will will not send a response to the client. Instead the thread is released and the Continuation is placed on the timer queue. If the Continuation timeout expires, or it's resume method is called, then the request is again allocated a thread and the request is retried. The limitation of this approach is that request content is not available on the retried request, thus if possible it should be read after the continuation or saved as a request attribute or as the associated object of the Continuation instance.
@org.apache.xbean.XBean element="nioConnector" description="Creates an NIO based socket connector"

public class StartWebSocketBroadcast {
    public static void main(String[] args) throws Exception {
        int timeout = (int) Duration.ONE_HOUR.getMilliseconds();


        Server server = new Server();
        SelectChannelConnector connector = new SelectChannelConnector();


        // Set some timeout options to make debugging easier.
        connector.setMaxIdleTime(timeout);
        connector.setSoLingerTime(-1);
        connector.setPort(8080);
        server.addConnector(connector);


        Resource keystore = Resource.newClassPathResource("/keystore");
        if (keystore != null && keystore.exists()) {
            // if a keystore for a SSL certificate is available, start a SSL
            // connector on port 8443.
            // By default, the quickstart comes with a Apache Wicket Quickstart
            // Certificate that expires about half way september 2021. Do not
            // use this certificate anywhere important as the passwords are
            // available in the source.


            connector.setConfidentialPort(8443);


            SslContextFactory factory = new SslContextFactory();
            factory.setKeyStoreResource(keystore);
            factory.setKeyStorePassword("wicket");
            factory.setTrustStoreResource(keystore);

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      //Set jetty thread pool
      serverForAgent.setThreadPool(new QueuedThreadPool(25));
      server.setThreadPool(new QueuedThreadPool(25));


      /* Configure the API server to use the NIO connectors */
      SelectChannelConnector apiConnector;


      if (configs.getApiSSLAuthentication()) {
        SslSelectChannelConnector sapiConnector = new SslSelectChannelConnector();
        sapiConnector.setPort(CLIENT_SSL_API_PORT);
        sapiConnector.setKeystore(keystore);
        sapiConnector.setTruststore(keystore);
        sapiConnector.setPassword(srvrCrtPass);
        sapiConnector.setKeyPassword(srvrCrtPass);
        sapiConnector.setTrustPassword(srvrCrtPass);
        sapiConnector.setKeystoreType("PKCS12");
        sapiConnector.setTruststoreType("PKCS12");
        apiConnector = sapiConnector;
      } 
      else  {
        apiConnector = new SelectChannelConnector();
        apiConnector.setPort(configs.getClientApiPort());
      }


      server.addConnector(apiConnector);


      server.setStopAtShutdown(true);

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    }


    protected void doStart() throws Exception {
        server = new Server();
        if (connector == null) {
            connector = new SelectChannelConnector();
        }
        connector.setHost(bindAddress.getHost());
        connector.setPort(bindAddress.getPort());
        connector.setServer(server);
        server.addConnector(connector);

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        stompUri = new URI(broker.addConnector("stomp://localhost:0").getPublishableConnectString());
        broker.start();
        broker.waitUntilStarted();


        server = new Server();
        SelectChannelConnector connector = new SelectChannelConnector();
        connector.setPort(8080);
        connector.setServer(server);
        WebAppContext context = new WebAppContext();


        context.setResourceBase("src/main/webapp");
        context.setContextPath("/");
        context.setServer(server);

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        int port = 80;
        if( uri.getPort() >=0 ) {
            port = uri.getPort();
        }
        
        connector = new SelectChannelConnector();
        connector.setPort(port);
        server.addConnector(connector);
        connector.start();
    }

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      //Set jetty thread pool
      serverForAgent.setThreadPool(new QueuedThreadPool(25));
      server.setThreadPool(new QueuedThreadPool(25));


      /* Configure the API server to use the NIO connectors */
      SelectChannelConnector apiConnector;


      if (configs.getApiSSLAuthentication()) {
        String httpsKeystore = configsMap.get(Configuration.CLIENT_API_SSL_KSTR_DIR_NAME_KEY) +
          File.separator + configsMap.get(Configuration.CLIENT_API_SSL_KSTR_NAME_KEY);
        LOG.info("API SSL Authentication is turned on. Keystore - " + httpsKeystore);        
        
        String httpsCrtPass = configsMap.get(Configuration.CLIENT_API_SSL_CRT_PASS_KEY);


        SslSelectChannelConnector sapiConnector = new SslSelectChannelConnector();
        sapiConnector.setPort(configs.getClientSSLApiPort());
        sapiConnector.setKeystore(httpsKeystore);
        sapiConnector.setTruststore(httpsKeystore);
        sapiConnector.setPassword(httpsCrtPass);
        sapiConnector.setKeyPassword(httpsCrtPass);
        sapiConnector.setTrustPassword(httpsCrtPass);
        sapiConnector.setKeystoreType("PKCS12");
        sapiConnector.setTruststoreType("PKCS12");
        sapiConnector.setMaxIdleTime(configs.getConnectionMaxIdleTime());
        apiConnector = sapiConnector;
      } 
      else  {
        apiConnector = new SelectChannelConnector();
        apiConnector.setPort(configs.getClientApiPort());
        apiConnector.setMaxIdleTime(configs.getConnectionMaxIdleTime());
      }


      server.addConnector(apiConnector);


      server.setStopAtShutdown(true);

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    final File homeDir = new File("src/main/webapp/uploads/");
    
    protected void setUp() throws Exception {
        
        server = new Server();
        SelectChannelConnector connector = new SelectChannelConnector();
        connector.setPort(8080);
        connector.setServer(server);
        WebAppContext context = new WebAppContext();


        context.setResourceBase("src/main/webapp");
        context.setContextPath("/");
        context.setServer(server);

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            String text = args[0];
            port = Integer.parseInt(text);
        }
        System.out.println("Starting Web Server on port: " + port);
        Server server = new Server();
        SelectChannelConnector connector = new SelectChannelConnector();
        connector.setPort(port);
        connector.setServer(server);
        WebAppContext context = new WebAppContext();


        context.setResourceBase(WEBAPP_DIR);
        context.setContextPath(WEBAPP_CTX);
        context.setServer(server);

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        stompUri = broker.addConnector("stomp://localhost:61613").getConnectUri();
        broker.start();
        broker.waitUntilStarted();


        server = new Server();
        SelectChannelConnector connector = new SelectChannelConnector();
        connector.setPort(8080);
        connector.setServer(server);
        WebAppContext context = new WebAppContext();


        context.setResourceBase("src/main/webapp");
        context.setContextPath("/");
        context.setServer(server);

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        // look through the existing connectors.  If we are already listening
        // on the requested port, do nothing.
        for (Connector c : server.getConnectors()) {
            if (c instanceof SelectChannelConnector) {
                SelectChannelConnector conn = (SelectChannelConnector) c;
                if (conn.getPort() == port)
                    return;
            }
        }


        for (int retries = 50;  retries-- > 0; ) {
            try {
                // create a new listener on the given port
                SelectChannelConnector c = new SelectChannelConnector();
                if (allowingRemoteConnections != ALLOW_REMOTE_ALWAYS)
                    c.setHost("127.0.0.1");
                c.setPort(port);
                c.setServer(server);


                // attempt to start listening. This will throw an exception if
                // the given port is already in use.
                c.start();


                // if the connection started successfully, add it to the
                // server and record the port in our data structures.
                server.addConnector(c);
                this.port = port;

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