bgp/rib-impl/src/test/java/org/opendaylight/protocol/bgp/rib/impl/BGPDispatcherImplTest.java

   1 /*
   2  * Copyright (c) 2014 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.bgp.rib.impl;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.base.Preconditions;
  13 import com.google.common.base.Stopwatch;
  14 import com.google.common.collect.Lists;
  15 import com.google.common.collect.Sets;
  16 import com.google.common.util.concurrent.Uninterruptibles;
  17 import io.netty.channel.Channel;
  18 import io.netty.channel.ChannelFuture;
  19 import io.netty.channel.EventLoopGroup;
  20 import io.netty.channel.epoll.Epoll;
  21 import io.netty.channel.epoll.EpollEventLoopGroup;
  22 import io.netty.channel.nio.NioEventLoopGroup;
  23 import io.netty.util.concurrent.Future;
  24 import io.netty.util.concurrent.GenericFutureListener;
  25 import java.net.InetSocketAddress;
  26 import java.util.List;
  27 import java.util.concurrent.CountDownLatch;
  28 import java.util.concurrent.ExecutionException;
  29 import java.util.concurrent.TimeUnit;
  30 import org.junit.After;
  31 import org.junit.Assert;
  32 import org.junit.Before;
  33 import org.junit.Test;
  34 import org.opendaylight.protocol.bgp.parser.BGPDocumentedException;
  35 import org.opendaylight.protocol.bgp.parser.BgpExtendedMessageUtil;
  36 import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
  37 import org.opendaylight.protocol.bgp.parser.spi.BGPExtensionProviderContext;
  38 import org.opendaylight.protocol.bgp.parser.spi.pojo.ServiceLoaderBGPExtensionProviderContext;
  39 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPPeerRegistry;
  40 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionPreferences;
  41 import org.opendaylight.protocol.util.InetSocketAddressUtil;
  42 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
  43 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  44 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParameters;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParametersBuilder;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilities;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilitiesBuilder;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.CParametersBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.c.parameters.As4BytesCapabilityBuilder;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.CParameters1;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.CParameters1Builder;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.mp.capabilities.MultiprotocolCapabilityBuilder;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpId;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
  58 import org.slf4j.LoggerFactory;
  59
  60 public class BGPDispatcherImplTest {
  61
  62     private static final AsNumber AS_NUMBER = new AsNumber(30L);
  63     private static final int RETRY_TIMER = 1;
  64     private static final BgpTableType IPV_4_TT = new BgpTableTypeImpl(Ipv4AddressFamily.class, UnicastSubsequentAddressFamily.class);
  65     private BGPDispatcherImpl serverDispatcher;
  66     private TestClientDispatcher clientDispatcher;
  67     private BGPPeerRegistry registry;
  68     private SimpleSessionListener clientListener;
  69     private SimpleSessionListener serverListener;
  70     private EventLoopGroup boss;
  71     private EventLoopGroup worker;
  72
  73     @Before
  74     public void setUp() throws BGPDocumentedException {
  75         if (Epoll.isAvailable()) {
  76             this.boss = new EpollEventLoopGroup();
  77             this.worker = new EpollEventLoopGroup();
  78         } else {
  79             this.boss = new NioEventLoopGroup();
  80             this.worker = new NioEventLoopGroup();
  81         }
  82         this.registry = new StrictBGPPeerRegistry();
  83         this.clientListener = new SimpleSessionListener();
  84         final BGPExtensionProviderContext ctx = ServiceLoaderBGPExtensionProviderContext.getSingletonInstance();
  85         this.serverDispatcher = new BGPDispatcherImpl(ctx.getMessageRegistry(), this.boss, this.worker);
  86         configureClient(ctx);
  87     }
  88
  89     private static <T extends Future> void waitFutureSuccess(final T future) throws InterruptedException {
  90         final CountDownLatch latch = new CountDownLatch(1);
  91         future.addListener(future1 -> latch.countDown());
  92         Uninterruptibles.awaitUninterruptibly(latch, 10, TimeUnit.SECONDS);
  93     }
  94
  95
  96     public static void checkIdleState (final SimpleSessionListener listener){
  97         Stopwatch sw = Stopwatch.createStarted();
  98         while(sw.elapsed(TimeUnit.SECONDS) <= 10) {
  99             if (BGPSessionImpl.State.IDLE != listener.getState()){
 100                 Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
 101             } else {
 102                 return;
 103             }
 104         }
 105         Assert.fail();
 106     }
 107
 108     private void configureClient(final BGPExtensionProviderContext ctx) {
 109         final InetSocketAddress clientAddress = InetSocketAddressUtil.getRandomLoopbackInetSocketAddress();
 110         final IpAddress clientPeerIp = new IpAddress(new Ipv4Address(clientAddress.getAddress().getHostAddress()));
 111         this.registry.addPeer(clientPeerIp, this.clientListener, createPreferences(clientAddress));
 112         this.clientDispatcher = new TestClientDispatcher(this.boss, this.worker, ctx.getMessageRegistry(), clientAddress);
 113     }
 114
 115     private Channel createServer(final InetSocketAddress serverAddress) throws InterruptedException {
 116         this.serverListener = new SimpleSessionListener();
 117         this.registry.addPeer(new IpAddress(new Ipv4Address(serverAddress.getAddress().getHostAddress())), this.serverListener, createPreferences(serverAddress));
 118         LoggerFactory.getLogger(BGPDispatcherImplTest.class).info("createServer");
 119         final ChannelFuture future = this.serverDispatcher.createServer(this.registry, serverAddress);
 120         future.addListener(new GenericFutureListener<Future<Void>>() {
 121             @Override
 122             public void operationComplete(final Future<Void> future) {
 123                 Preconditions.checkArgument(future.isSuccess(), "Unable to start bgp server on %s", future.cause());
 124             }
 125         });
 126         waitFutureSuccess(future);
 127         return future.channel();
 128     }
 129
 130     @After
 131     public void tearDown() throws Exception {
 132         this.serverDispatcher.close();
 133         this.registry.close();
 134         this.worker.shutdownGracefully().awaitUninterruptibly();
 135         this.boss.shutdownGracefully().awaitUninterruptibly();
 136     }
 137
 138     @Test
 139     public void testCreateClient() throws InterruptedException, ExecutionException {
 140         final InetSocketAddress serverAddress = InetSocketAddressUtil.getRandomLoopbackInetSocketAddress();
 141         final Channel serverChannel = createServer(serverAddress);
 142         Thread.sleep(1000);
 143         final Future<BGPSessionImpl> futureClient = this.clientDispatcher.createClient(serverAddress, this.registry, 2, Optional.absent());
 144         waitFutureSuccess(futureClient);
 145         final BGPSessionImpl session = futureClient.get();
 146         Assert.assertEquals(BGPSessionImpl.State.UP, this.clientListener.getState());
 147         Assert.assertEquals(BGPSessionImpl.State.UP, this.serverListener.getState());
 148         Assert.assertEquals(AS_NUMBER, session.getAsNumber());
 149         Assert.assertEquals(Sets.newHashSet(IPV_4_TT), session.getAdvertisedTableTypes());
 150         Assert.assertTrue(serverChannel.isWritable());
 151         session.close();
 152
 153         checkIdleState(this.clientListener);
 154         checkIdleState(this.serverListener);
 155     }
 156
 157     @Test
 158     public void testCreateReconnectingClient() throws Exception {
 159         final InetSocketAddress serverAddress = InetSocketAddressUtil.getRandomLoopbackInetSocketAddress();
 160         final Future<Void> future = this.clientDispatcher.createReconnectingClient(serverAddress, this.registry, RETRY_TIMER, Optional.absent());
 161         waitFutureSuccess(future);
 162         final Channel serverChannel = createServer(serverAddress);
 163         Assert.assertEquals(BGPSessionImpl.State.UP, this.serverListener.getState());
 164         Assert.assertTrue(serverChannel.isWritable());
 165         future.cancel(true);
 166         this.serverListener.releaseConnection();
 167         checkIdleState(this.serverListener);
 168     }
 169
 170     private BGPSessionPreferences createPreferences(final InetSocketAddress socketAddress) {
 171         final List<BgpParameters> tlvs = Lists.newArrayList();
 172         final List<OptionalCapabilities> capas = Lists.newArrayList();
 173         capas.add(new OptionalCapabilitiesBuilder().setCParameters(new CParametersBuilder().addAugmentation(
 174             CParameters1.class, new CParameters1Builder().setMultiprotocolCapability(new MultiprotocolCapabilityBuilder()
 175                 .setAfi(IPV_4_TT.getAfi()).setSafi(IPV_4_TT.getSafi()).build()).build())
 176             .setAs4BytesCapability(new As4BytesCapabilityBuilder().setAsNumber(new AsNumber(30L)).build())
 177             .build()).build());
 178         capas.add(new OptionalCapabilitiesBuilder().setCParameters(BgpExtendedMessageUtil.EXTENDED_MESSAGE_CAPABILITY).build());
 179         tlvs.add(new BgpParametersBuilder().setOptionalCapabilities(capas).build());
 180         final BgpId bgpId = new BgpId(new Ipv4Address(socketAddress.getAddress().getHostAddress()));
 181         return new BGPSessionPreferences(AS_NUMBER, (short) 4, bgpId, AS_NUMBER, tlvs, Optional.absent());
 182     }
 183 }