netconf/netconf-impl/src/main/java/org/opendaylight/netconf/impl/NetconfServerDispatcherImpl.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.netconf.impl;
  10
  11 import io.netty.channel.Channel;
  12 import io.netty.channel.ChannelFuture;
  13 import io.netty.channel.EventLoopGroup;
  14 import io.netty.channel.local.LocalAddress;
  15 import io.netty.channel.local.LocalChannel;
  16 import io.netty.channel.local.LocalServerChannel;
  17 import io.netty.channel.socket.SocketChannel;
  18 import io.netty.util.concurrent.Promise;
  19 import java.net.InetSocketAddress;
  20 import org.opendaylight.netconf.api.NetconfServerDispatcher;
  21 import org.opendaylight.netconf.impl.util.DeserializerExceptionHandler;
  22 import org.opendaylight.netconf.nettyutil.AbstractChannelInitializer;
  23 import org.opendaylight.protocol.framework.AbstractDispatcher;
  24
  25 public class NetconfServerDispatcherImpl extends AbstractDispatcher<NetconfServerSession,
  26         NetconfServerSessionListener> implements NetconfServerDispatcher {
  27
  28     private final ServerChannelInitializer initializer;
  29
  30     public NetconfServerDispatcherImpl(ServerChannelInitializer serverChannelInitializer, EventLoopGroup bossGroup,
  31                                        EventLoopGroup workerGroup) {
  32         super(bossGroup, workerGroup);
  33         this.initializer = serverChannelInitializer;
  34     }
  35
  36     @Override
  37     public ChannelFuture createServer(InetSocketAddress address) {
  38         return super.createServer(address, new PipelineInitializer<NetconfServerSession>() {
  39             @Override
  40             public void initializeChannel(final SocketChannel ch, final Promise<NetconfServerSession> promise) {
  41                 initializer.initialize(ch, promise);
  42             }
  43         });
  44     }
  45
  46     @Override
  47     public ChannelFuture createLocalServer(LocalAddress address) {
  48         return super.createServer(address, LocalServerChannel.class, new ChannelPipelineInitializer<LocalChannel,
  49                 NetconfServerSession>() {
  50             @Override
  51             public void initializeChannel(final LocalChannel ch, final Promise<NetconfServerSession> promise) {
  52                 initializer.initialize(ch, promise);
  53             }
  54         });
  55     }
  56
  57     public static class ServerChannelInitializer extends AbstractChannelInitializer<NetconfServerSession> {
  58
  59         public static final String DESERIALIZER_EX_HANDLER_KEY = "deserializerExHandler";
  60
  61         private final NetconfServerSessionNegotiatorFactory negotiatorFactory;
  62
  63
  64         public ServerChannelInitializer(NetconfServerSessionNegotiatorFactory negotiatorFactory) {
  65             this.negotiatorFactory = negotiatorFactory;
  66
  67         }
  68
  69         @Override
  70         protected void initializeMessageDecoder(Channel ch) {
  71             super.initializeMessageDecoder(ch);
  72             ch.pipeline().addLast(DESERIALIZER_EX_HANDLER_KEY, new DeserializerExceptionHandler());
  73         }
  74
  75         @Override
  76         protected void initializeSessionNegotiator(Channel ch, Promise<NetconfServerSession> promise) {
  77             ch.pipeline().addAfter(DESERIALIZER_EX_HANDLER_KEY, AbstractChannelInitializer.NETCONF_SESSION_NEGOTIATOR,
  78                     negotiatorFactory.getSessionNegotiator(null, ch, promise));
  79         }
  80     }
  81 }