| // |
| // ======================================================================== |
| // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.server.nio; |
| |
| import java.io.IOException; |
| import java.nio.channels.Channel; |
| import java.nio.channels.ServerSocketChannel; |
| |
| import org.eclipse.jetty.util.log.Log; |
| import org.eclipse.jetty.util.log.Logger; |
| |
| /** |
| * An implementation of the SelectChannelConnector which first tries to |
| * inherit from a channel provided by the system. If there is no inherited |
| * channel available, or if the inherited channel provided not usable, then |
| * it will fall back upon normal ServerSocketChannel creation. |
| * <p> |
| * Note that System.inheritedChannel() is only available from Java 1.5 onwards. |
| * Trying to use this class under Java 1.4 will be the same as using a normal |
| * SelectChannelConnector. |
| * <p> |
| * Use it with xinetd/inetd, to launch an instance of Jetty on demand. The port |
| * used to access pages on the Jetty instance is the same as the port used to |
| * launch Jetty. |
| * |
| * @author athena |
| */ |
| public class InheritedChannelConnector extends SelectChannelConnector |
| { |
| private static final Logger LOG = Log.getLogger(InheritedChannelConnector.class); |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public void open() throws IOException |
| { |
| synchronized(this) |
| { |
| try |
| { |
| Channel channel = System.inheritedChannel(); |
| if ( channel instanceof ServerSocketChannel ) |
| _acceptChannel = (ServerSocketChannel)channel; |
| else |
| LOG.warn("Unable to use System.inheritedChannel() [" +channel+ "]. Trying a new ServerSocketChannel at " + getHost() + ":" + getPort()); |
| |
| if ( _acceptChannel != null ) |
| _acceptChannel.configureBlocking(true); |
| } |
| catch(NoSuchMethodError e) |
| { |
| LOG.warn("Need at least Java 5 to use socket inherited from xinetd/inetd."); |
| } |
| |
| if (_acceptChannel == null) |
| super.open(); |
| } |
| } |
| |
| } |