bmp/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 package org.opendaylight.protocol.bmp.mock;
   9
  10 import static org.opendaylight.protocol.util.Ipv4Util.incrementIpv4Address;
  11 import static org.opendaylight.protocol.util.Ipv4Util.incrementIpv4Prefix;
  12
  13 import io.netty.channel.Channel;
  14 import io.netty.channel.ChannelFutureListener;
  15 import io.netty.channel.ChannelHandlerContext;
  16 import io.netty.channel.SimpleChannelInboundHandler;
  17 import java.net.InetAddress;
  18 import java.net.InetSocketAddress;
  19 import org.opendaylight.protocol.bmp.api.BmpSession;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.message.rev180329.AdjRibInType;
  23 import org.opendaylight.yangtools.yang.binding.Notification;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 public final class BmpMockSession extends SimpleChannelInboundHandler<Notification> implements BmpSession {
  28
  29     private static final Logger LOG = LoggerFactory.getLogger(BmpMockSession.class);
  30
  31     private static final Ipv4AddressNoZone NEXT_HOP = new Ipv4AddressNoZone("1.1.1.1");
  32     private static final Ipv4Prefix PREFIX = new Ipv4Prefix("1.1.1.1/32");
  33     private static final Ipv4AddressNoZone PEER_ADDRESS = NEXT_HOP;
  34
  35     private final int peersCount;
  36     private final int prePolicyRoutesCount;
  37     private final int postPolicyRoutesCount;
  38
  39     private InetSocketAddress remoteAddress;
  40     private Channel channel;
  41
  42     public BmpMockSession(final int peersCount, final int prePolicyRoutesCount, final int postPolicyRoutesCount) {
  43         this.peersCount = peersCount;
  44         this.prePolicyRoutesCount = prePolicyRoutesCount;
  45         this.postPolicyRoutesCount = postPolicyRoutesCount;
  46     }
  47
  48     @Override
  49     public void close() throws InterruptedException {
  50         LOG.info("BMP session {} is closed.", BmpMockSession.this.channel);
  51         this.channel.close().sync();
  52     }
  53
  54     @Override
  55     public InetAddress getRemoteAddress() {
  56         return this.remoteAddress.getAddress();
  57     }
  58
  59     @Override
  60     protected void channelRead0(final ChannelHandlerContext ctx, final Notification msg) throws Exception {
  61         // nothing to read
  62     }
  63
  64     @Override
  65     public void channelActive(final ChannelHandlerContext ctx) {
  66         this.channel = ctx.channel();
  67         this.channel.closeFuture().addListener((ChannelFutureListener) future ->
  68                 LOG.info("BMP session {} close.", BmpMockSession.this.channel));
  69         LOG.info("BMP session {} successfully established.", this.channel);
  70         final InetSocketAddress localAddress = (InetSocketAddress) this.channel.localAddress();
  71         this.remoteAddress = (InetSocketAddress) this.channel.remoteAddress();
  72         advertizePeers(localAddress);
  73     }
  74
  75     private void advertizePeers(final InetSocketAddress localAddress) {
  76         channel.writeAndFlush(BmpMockUtil.createInitiation());
  77         Ipv4AddressNoZone peerAddress = PEER_ADDRESS;
  78         for (int i = 0; i < this.peersCount; i++) {
  79             channel.writeAndFlush(BmpMockUtil.createPeerUp(peerAddress, localAddress.getAddress()));
  80             LOG.debug("BMP router {} advertized peer {}", channel.localAddress(), peerAddress);
  81             advertizeRoutes(this.prePolicyRoutesCount, AdjRibInType.PrePolicy, channel, peerAddress);
  82             advertizeRoutes(this.postPolicyRoutesCount, AdjRibInType.PostPolicy, channel, peerAddress);
  83             peerAddress = incrementIpv4Address(peerAddress);
  84         }
  85     }
  86
  87     private static void advertizeRoutes(final int count, final AdjRibInType type, final Channel channel,
  88             final Ipv4AddressNoZone peerAddress) {
  89         Ipv4Prefix prefix = PREFIX;
  90         for (int i = 0; i < count; i++) {
  91             channel.writeAndFlush(BmpMockUtil.createRouteMonitoring(peerAddress, type, prefix));
  92             prefix = incrementIpv4Prefix(prefix);
  93         }
  94     }
  95
  96 }