bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/BGPDispatcherImpl.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 package org.opendaylight.protocol.bgp.rib.impl;
   9
  10 import io.netty.channel.EventLoopGroup;
  11 import io.netty.channel.socket.SocketChannel;
  12 import io.netty.util.HashedWheelTimer;
  13 import io.netty.util.Timer;
  14 import io.netty.util.concurrent.Future;
  15 import io.netty.util.concurrent.Promise;
  16
  17 import java.net.InetSocketAddress;
  18
  19 import org.opendaylight.protocol.bgp.parser.BGPSessionListener;
  20 import org.opendaylight.protocol.bgp.parser.spi.MessageRegistry;
  21 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPDispatcher;
  22 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionPreferences;
  23 import org.opendaylight.protocol.framework.AbstractDispatcher;
  24 import org.opendaylight.protocol.framework.ReconnectStrategy;
  25 import org.opendaylight.protocol.framework.ReconnectStrategyFactory;
  26 import org.opendaylight.protocol.framework.SessionListenerFactory;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.AsNumber;
  28
  29 /**
  30  * Implementation of BGPDispatcher.
  31  */
  32 public final class BGPDispatcherImpl extends AbstractDispatcher<BGPSessionImpl, BGPSessionListener> implements BGPDispatcher, AutoCloseable {
  33         private final Timer timer = new HashedWheelTimer();
  34
  35         private final BGPHandlerFactory hf;
  36
  37         public BGPDispatcherImpl(final MessageRegistry messageRegistry, final EventLoopGroup bossGroup, final EventLoopGroup workerGroup) {
  38                 super(bossGroup, workerGroup);
  39                 this.hf = new BGPHandlerFactory(messageRegistry);
  40         }
  41
  42         @Override
  43         public Future<BGPSessionImpl> createClient(final InetSocketAddress address, final BGPSessionPreferences preferences,
  44                         final AsNumber remoteAs, final BGPSessionListener listener, final ReconnectStrategy strategy) {
  45                 final BGPSessionNegotiatorFactory snf = new BGPSessionNegotiatorFactory(this.timer, preferences, remoteAs);
  46                 final SessionListenerFactory<BGPSessionListener> slf = new SessionListenerFactory<BGPSessionListener>() {
  47                         @Override
  48                         public BGPSessionListener getSessionListener() {
  49                                 return listener;
  50                         }
  51                 };
  52                 return super.createClient(address, strategy, new PipelineInitializer<BGPSessionImpl>() {
  53                         @Override
  54                         public void initializeChannel(final SocketChannel ch, final Promise<BGPSessionImpl> promise) {
  55                                 ch.pipeline().addLast(hf.getDecoders());
  56                                 ch.pipeline().addLast("negotiator", snf.getSessionNegotiator(slf, ch, promise));
  57                                 ch.pipeline().addLast(hf.getEncoders());
  58                         }
  59                 });
  60         }
  61
  62         @Override
  63         public Future<Void> createReconnectingClient(final InetSocketAddress address,
  64                         final BGPSessionPreferences preferences, final AsNumber remoteAs,
  65                         final BGPSessionListener listener, final ReconnectStrategyFactory connectStrategyFactory,
  66                         final ReconnectStrategy reestablishStrategy) {
  67                 final BGPSessionNegotiatorFactory snf = new BGPSessionNegotiatorFactory(this.timer, preferences, remoteAs);
  68                 final SessionListenerFactory<BGPSessionListener> slf = new SessionListenerFactory<BGPSessionListener>() {
  69                         @Override
  70                         public BGPSessionListener getSessionListener() {
  71                                 return listener;
  72                         }
  73                 };
  74
  75                 return super.createReconnectingClient(address, connectStrategyFactory, reestablishStrategy, new PipelineInitializer<BGPSessionImpl>() {
  76                         @Override
  77                         public void initializeChannel(final SocketChannel ch, final Promise<BGPSessionImpl> promise) {
  78                                 ch.pipeline().addLast(hf.getDecoders());
  79                                 ch.pipeline().addLast("negotiator", snf.getSessionNegotiator(slf, ch, promise));
  80                                 ch.pipeline().addLast(hf.getEncoders());
  81                         }
  82                 });
  83         }
  84
  85         @Override
  86         public void close() {
  87         }
  88 }