Examples of org.mortbay.jetty.nio.SelectChannelConnector

org.mortbay.jetty.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.mortbay.util.ajax.Continuation}, threadless waits are supported. When a filter or servlet calls getEvent on a Continuation, a {@link org.mortbay.jetty.RetryRequest}runtime exception is thrown to allow the thread to exit the current request handling. Jetty will catch this exception and 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" @author gregw


    // set up Jetty and run the embedded server


    Server server = new Server();


    Connector connector = new SelectChannelConnector();
    connector.setPort(servlet.getConfiguration().getInt("hbase.rest.port", 8080));
    connector.setHost(servlet.getConfiguration().get("hbase.rest.host", "0.0.0.0"));


    server.addConnector(connector);


    // Set the default max thread number to 100 to limit
    // the number of concurrent requests so that REST server doesn't OOM easily.

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  public Connector createBaseListener(Configuration conf) throws IOException {
    return HttpServer.createDefaultChannelConnector();
  }


  static Connector createDefaultChannelConnector() {
    SelectChannelConnector ret = new SelectChannelConnector();
    ret.setLowResourceMaxIdleTime(10000);
    ret.setAcceptQueueSize(128);
    ret.setResolveNames(false);
    ret.setUseDirectBuffers(false);
    return ret;
  }

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    }
  }


  @InterfaceAudience.Private
  public static Connector createDefaultChannelConnector() {
    SelectChannelConnector ret = new SelectChannelConnectorWithSafeStartup();
    ret.setLowResourceMaxIdleTime(10000);
    ret.setAcceptQueueSize(128);
    ret.setResolveNames(false);
    ret.setUseDirectBuffers(false);
    if(Shell.WINDOWS) {
      // result of setting the SO_REUSEADDR flag is different on Windows
      // http://msdn.microsoft.com/en-us/library/ms740621(v=vs.85).aspx
      // without this 2 NN's can start on the same machine and listen on
      // the same port with indeterminate routing of incoming requests to them
      ret.setReuseAddress(false);
    }
    ret.setHeaderBufferSize(1024*64);
    return ret;
  }

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    }
  }


  @InterfaceAudience.Private
  public static Connector createDefaultChannelConnector() {
    SelectChannelConnector ret = new SelectChannelConnectorWithSafeStartup();
    ret.setLowResourceMaxIdleTime(10000);
    ret.setAcceptQueueSize(128);
    ret.setResolveNames(false);
    ret.setUseDirectBuffers(false);
    if(Shell.WINDOWS) {
      // result of setting the SO_REUSEADDR flag is different on Windows
      // http://msdn.microsoft.com/en-us/library/ms740621(v=vs.85).aspx
      // without this 2 NN's can start on the same machine and listen on 
      // the same port with indeterminate routing of incoming requests to them
      ret.setReuseAddress(false);
    }
    ret.setHeaderBufferSize(1024*64);
    return ret;
  }

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   * Create a required listener for the Jetty instance listening on the port
   * provided. This wrapper and all subclasses must create at least one
   * listener.
   */
  protected Connector createBaseListener(Configuration conf) throws IOException {
    SelectChannelConnector ret = new SelectChannelConnector();
    ret.setLowResourceMaxIdleTime(10000);
    ret.setAcceptQueueSize(128);
    ret.setResolveNames(false);
    ret.setUseDirectBuffers(false);
    return ret;
  }

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            public AbstractConnector createConnector(int porto) {
                return createConnector(null, porto);
            }
            public AbstractConnector createConnector(String hosto, int porto) {
                // now we just use the SelectChannelConnector as the default connector
                SelectChannelConnector result = 
                    new SelectChannelConnector();
                
                // Regardless the port has to equal the one
                // we are configured for.
                assert porto == port;
                assert hosto == host;
                if (hosto != null) {
                    result.setHost(hosto);
                }
                result.setPort(porto);
                return result;
            }
        };
    }

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        assertTrue(server.isStarted());
    }


    private static PauseableServer createAndStartServer(final int port) throws Exception {
        PauseableServer server = new PauseableServer();
        Connector connector = new SelectChannelConnector();
        connector.setPort(port);
        server.setConnectors(new Connector[]{connector});
        server.setHandler(new WebAppContext("src/main/webapp", "/"));
        server.start();
        return server;
    }

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      conn.setTruststore(keyStore);
      conn.setKeyPassword(keyStorePassword);
      conn.setTrustPassword(keyStorePassword);
      return conn;
    }
    return new SelectChannelConnector();
  }

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    Bayeux _bayeux;
    ChatService _chatService;


    static Connector newConnector()
    {
        return new SelectChannelConnector();
    }

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    public String createSocketConnector(boolean localhost)
    throws Exception
    {
        synchronized (this)
        {
            SelectChannelConnector connector = new SelectChannelConnector();
            if (localhost)
                connector.setHost("127.0.0.1");
            _server.addConnector(connector);
            if (_maxIdleTime != -1 )
                connector.setMaxIdleTime(_maxIdleTime);
            if (_server.isStarted())
                connector.start();
            else
                connector.open();


            return "http://"+(localhost?"127.0.0.1":
                InetAddress.getLocalHost().getHostAddress()    
            )+":"+connector.getLocalPort();
        }
   }

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