pcep/pcc-mock/src/main/java/org/opendaylight/protocol/pcep/pcc/mock/PCCDispatcher.java

   1 /*
   2  * Copyright (c) 2015 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.protocol.pcep.pcc.mock;
  10
  11 import com.google.common.base.Preconditions;
  12 import io.netty.bootstrap.Bootstrap;
  13 import io.netty.bootstrap.ChannelFactory;
  14 import io.netty.bootstrap.ServerBootstrap;
  15 import io.netty.channel.ChannelFuture;
  16 import io.netty.channel.ChannelOption;
  17 import io.netty.channel.ServerChannel;
  18 import io.netty.channel.nio.NioEventLoopGroup;
  19 import io.netty.channel.socket.SocketChannel;
  20 import io.netty.util.concurrent.Promise;
  21 import java.net.InetSocketAddress;
  22 import org.opendaylight.protocol.framework.ReconnectStrategyFactory;
  23 import org.opendaylight.protocol.pcep.PCEPDispatcher;
  24 import org.opendaylight.protocol.pcep.PCEPPeerProposal;
  25 import org.opendaylight.protocol.pcep.PCEPSessionListenerFactory;
  26 import org.opendaylight.protocol.pcep.PCEPSessionNegotiatorFactory;
  27 import org.opendaylight.protocol.pcep.impl.PCEPHandlerFactory;
  28 import org.opendaylight.protocol.pcep.impl.PCEPSessionImpl;
  29 import org.opendaylight.protocol.pcep.spi.MessageRegistry;
  30 import org.opendaylight.tcpmd5.api.DummyKeyAccessFactory;
  31 import org.opendaylight.tcpmd5.api.KeyAccessFactory;
  32 import org.opendaylight.tcpmd5.api.KeyMapping;
  33 import org.opendaylight.tcpmd5.jni.NativeKeyAccessFactory;
  34 import org.opendaylight.tcpmd5.jni.NativeSupportUnavailableException;
  35 import org.opendaylight.tcpmd5.netty.MD5ChannelFactory;
  36 import org.opendaylight.tcpmd5.netty.MD5ChannelOption;
  37 import org.opendaylight.tcpmd5.netty.MD5NioSocketChannelFactory;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40
  41 public final class PCCDispatcher extends AbstractPCCDispatcher implements PCEPDispatcher {
  42     private static final Logger LOG = LoggerFactory.getLogger(PCCDispatcher.class);
  43     private final PCEPHandlerFactory factory;
  44     private final MD5ChannelFactory<?> cf;
  45     private final PCEPSessionNegotiatorFactory snf;
  46     private final PCEPHandlerFactory hf;
  47     private final ChannelFactory<? extends ServerChannel> scf;
  48     private InetSocketAddress localAddress;
  49     private KeyMapping keys;
  50
  51     public PCCDispatcher(final MessageRegistry registry, final PCEPSessionNegotiatorFactory negotiatorFactory) {
  52         super(new NioEventLoopGroup(), new NioEventLoopGroup());
  53         this.snf = Preconditions.checkNotNull(negotiatorFactory);
  54         this.factory = new PCEPHandlerFactory(registry);
  55         this.cf = new MD5NioSocketChannelFactory(DeafultKeyAccessFactory.getKeyAccessFactory());
  56         this.hf = new PCEPHandlerFactory(registry);
  57         this.scf = null;
  58     }
  59
  60
  61     @Override
  62     protected void customizeBootstrap(final Bootstrap b) {
  63         if (this.keys != null && !this.keys.isEmpty()) {
  64             if (this.cf == null) {
  65                 throw new UnsupportedOperationException("No key access instance available, cannot use key mapping");
  66             }
  67
  68             b.channelFactory(this.cf);
  69             b.option(MD5ChannelOption.TCP_MD5SIG, this.keys);
  70         }
  71         if (this.localAddress != null) {
  72             b.localAddress(this.localAddress);
  73         }
  74     }
  75
  76     public synchronized void createClient(final InetSocketAddress localAddress, final InetSocketAddress remoteAddress,
  77             final ReconnectStrategyFactory strategyFactory, final PCEPSessionListenerFactory listenerFactory,
  78             final PCEPSessionNegotiatorFactory negotiatorFactory, final KeyMapping keys) {
  79         this.localAddress = localAddress;
  80         this.keys = keys;
  81         super.createReconnectingClient(remoteAddress, strategyFactory, new AbstractPCCDispatcher.ChannelPipelineInitializer() {
  82             @Override
  83             public void initializeChannel(final SocketChannel ch, final Promise<PCEPSessionImpl> promise) {
  84                 ch.pipeline().addLast(PCCDispatcher.this.factory.getDecoders());
  85                 ch.pipeline().addLast("negotiator",
  86                         negotiatorFactory.getSessionNegotiator(listenerFactory, ch, promise, null));
  87                 ch.pipeline().addLast(PCCDispatcher.this.factory.getEncoders());
  88             }
  89         });
  90         this.localAddress = null;
  91         this.keys = null;
  92     }
  93
  94     @Override
  95     public synchronized ChannelFuture createServer(final InetSocketAddress address, final PCEPSessionListenerFactory listenerFactory, final PCEPPeerProposal peerProposal) {
  96         return createServer(address, null, listenerFactory, peerProposal);
  97     }
  98
  99     @Override
 100     public void customizeBootstrap(final ServerBootstrap b) {
 101         if (this.keys != null && !this.keys.isEmpty()) {
 102             if (this.scf == null) {
 103                 throw new UnsupportedOperationException("No key access instance available, cannot use key mapping");
 104             }
 105
 106             LOG.debug("Adding MD5 keys {} to boostrap {}", this.keys, b);
 107             b.channelFactory(this.scf);
 108             b.option(MD5ChannelOption.TCP_MD5SIG, this.keys);
 109         }
 110
 111         // Make sure we are doing round-robin processing
 112         b.childOption(ChannelOption.MAX_MESSAGES_PER_READ, 1);
 113     }
 114
 115     @Override
 116     public synchronized ChannelFuture createServer(final InetSocketAddress address, final KeyMapping keys,
 117                                                    final PCEPSessionListenerFactory listenerFactory, final PCEPPeerProposal peerProposal) {
 118         this.keys = keys;
 119         final ChannelFuture ret = super.createServer(address, new ChannelPipelineInitializer() {
 120             @Override
 121             public void initializeChannel(final SocketChannel ch, final Promise<PCEPSessionImpl> promise) {
 122                 ch.pipeline().addLast(PCCDispatcher.this.hf.getDecoders());
 123                 ch.pipeline().addLast("negotiator", PCCDispatcher.this.snf.getSessionNegotiator(listenerFactory, ch, promise, peerProposal));
 124                 ch.pipeline().addLast(PCCDispatcher.this.hf.getEncoders());
 125             }
 126         });
 127
 128         this.keys = null;
 129         return ret;
 130     }
 131
 132     private static final class DeafultKeyAccessFactory {
 133         private static final Logger LOG = LoggerFactory.getLogger(DeafultKeyAccessFactory.class);
 134         private static final KeyAccessFactory FACTORY;
 135
 136         static {
 137             KeyAccessFactory factory;
 138
 139             try {
 140                 factory = NativeKeyAccessFactory.getInstance();
 141             } catch (final NativeSupportUnavailableException e) {
 142                 LOG.debug("Native key access not available, using no-op fallback", e);
 143                 factory = DummyKeyAccessFactory.getInstance();
 144             }
 145
 146             FACTORY = factory;
 147         }
 148
 149         private DeafultKeyAccessFactory() {
 150             throw new UnsupportedOperationException("Utility class should never be instantiated");
 151         }
 152
 153         public static KeyAccessFactory getKeyAccessFactory() {
 154             return FACTORY;
 155         }
 156     }
 157 }