bgp/bmp-mock/src/main/java/org/opendaylight/protocol/bmp/mock/BmpMockSession.java

   1 /*
   2  * Copyright (c) 2016 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.bmp.mock;
  10
  11 import io.netty.channel.Channel;
  12 import io.netty.channel.ChannelFuture;
  13 import io.netty.channel.ChannelFutureListener;
  14 import io.netty.channel.ChannelHandlerContext;
  15 import io.netty.channel.SimpleChannelInboundHandler;
  16 import java.net.InetAddress;
  17 import java.net.InetSocketAddress;
  18 import org.opendaylight.protocol.bmp.api.BmpSession;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Address;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.message.rev150512.AdjRibInType;
  22 import org.opendaylight.yangtools.yang.binding.Notification;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 public final class BmpMockSession extends SimpleChannelInboundHandler<Notification> implements BmpSession {
  27
  28     private static final Logger LOG = LoggerFactory.getLogger(BmpMockSession.class);
  29
  30     private static final Ipv4Address NEXT_HOP = new Ipv4Address("1.1.1.1");
  31     private static final Ipv4Prefix PREFIX = new Ipv4Prefix("1.1.1.1/32");
  32     private static final Ipv4Address PEER_ADDRESS = NEXT_HOP;
  33
  34     private final int peersCount;
  35     private final int prePolicyRoutesCount;
  36     private final int postPolicyRoutesCount;
  37
  38     private InetSocketAddress remoteAddress;
  39     private Channel channel;
  40
  41     public BmpMockSession(final int peersCount, final int prePolicyRoutesCount, final int postPolicyRoutesCount) {
  42         this.peersCount = peersCount;
  43         this.prePolicyRoutesCount = prePolicyRoutesCount;
  44         this.postPolicyRoutesCount = postPolicyRoutesCount;
  45     }
  46
  47     @Override
  48     public void close() throws InterruptedException {
  49         this.channel.close().sync();
  50     }
  51
  52     @Override
  53     public InetAddress getRemoteAddress() {
  54         return this.remoteAddress.getAddress();
  55     }
  56
  57     @Override
  58     protected void channelRead0(final ChannelHandlerContext ctx, final Notification msg) throws Exception {
  59         // nothing to read
  60     }
  61
  62     @Override
  63     public void channelActive(final ChannelHandlerContext ctx) {
  64         this.channel = ctx.channel();
  65         this.channel.closeFuture().addListener(new ChannelFutureListener() {
  66             @Override
  67             public void operationComplete(final ChannelFuture future) throws Exception {
  68                 LOG.info("BMP session {} final successfully established.", BmpMockSession.this.channel);
  69             }
  70         });
  71         LOG.info("BMP session {} sucesfully established.", this.channel);
  72         final InetSocketAddress localAddress = (InetSocketAddress) this.channel.localAddress();
  73         this.remoteAddress = (InetSocketAddress) this.channel.remoteAddress();
  74         advertizePeers(this.channel, localAddress);
  75     }
  76
  77     private void advertizePeers(final Channel channel, final InetSocketAddress localAddress) {
  78         channel.writeAndFlush(BmpMockUtil.createInitiation());
  79         Ipv4Address peerAddress = PEER_ADDRESS;
  80         for (int i = 0; i < this.peersCount; i++) {
  81             channel.writeAndFlush(BmpMockUtil.createPeerUp(peerAddress, localAddress.getAddress()));
  82             LOG.debug("BMP router {} advertized peer {}", channel.localAddress(), peerAddress);
  83             advertizeRoutes(this.prePolicyRoutesCount, AdjRibInType.PrePolicy, channel, peerAddress);
  84             advertizeRoutes(this.postPolicyRoutesCount, AdjRibInType.PostPolicy, channel, peerAddress);
  85             peerAddress = BmpMockUtil.incrementIpv4Address(peerAddress);
  86         }
  87     }
  88
  89     private static void advertizeRoutes(final int count, final AdjRibInType type, final Channel channel,
  90             final Ipv4Address peerAddress) {
  91         Ipv4Prefix prefix = PREFIX;
  92         for (int i = 0; i < count; i++) {
  93             channel.writeAndFlush(BmpMockUtil.createRouteMonitoring(peerAddress, type, prefix));
  94             prefix = BmpMockUtil.incrementIpv4Prefix(prefix);
  95         }
  96     }
  97
  98 }