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 static org.opendaylight.protocol.bgp.rib.impl.CheckUtil.waitFutureSuccess;
  12
  13 import com.google.common.base.Optional;
  14 import com.google.common.base.Preconditions;
  15 import com.google.common.base.Stopwatch;
  16 import com.google.common.collect.Lists;
  17 import com.google.common.collect.Sets;
  18 import com.google.common.util.concurrent.Uninterruptibles;
  19 import io.netty.channel.Channel;
  20 import io.netty.channel.ChannelFuture;
  21 import io.netty.channel.EventLoopGroup;
  22 import io.netty.channel.epoll.Epoll;
  23 import io.netty.channel.epoll.EpollEventLoopGroup;
  24 import io.netty.channel.nio.NioEventLoopGroup;
  25 import io.netty.util.concurrent.Future;
  26 import io.netty.util.concurrent.GenericFutureListener;
  27 import java.net.InetSocketAddress;
  28 import java.util.List;
  29 import java.util.concurrent.CountDownLatch;
  30 import java.util.concurrent.ExecutionException;
  31 import java.util.concurrent.TimeUnit;
  32 import org.junit.After;
  33 import org.junit.Assert;
  34 import org.junit.Before;
  35 import org.junit.Test;
  36 import org.opendaylight.protocol.bgp.parser.BGPDocumentedException;
  37 import org.opendaylight.protocol.bgp.parser.BgpExtendedMessageUtil;
  38 import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
  39 import org.opendaylight.protocol.bgp.parser.spi.BGPExtensionProviderContext;
  40 import org.opendaylight.protocol.bgp.parser.spi.pojo.ServiceLoaderBGPExtensionProviderContext;
  41 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPPeerRegistry;
  42 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionPreferences;
  43 import org.opendaylight.protocol.util.InetSocketAddressUtil;
  44 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
  45 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  46 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParameters;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParametersBuilder;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilities;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilitiesBuilder;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.CParametersBuilder;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.c.parameters.As4BytesCapabilityBuilder;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.CParameters1;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.CParameters1Builder;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.mp.capabilities.MultiprotocolCapabilityBuilder;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpId;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
  60 import org.slf4j.LoggerFactory;
  61
  62 public class BGPDispatcherImplTest {
  63     private static final short HOLD_TIMER = 30;
  64     private static final AsNumber AS_NUMBER = new AsNumber(30L);
  65     private static final int RETRY_TIMER = 1;
  66     private static final BgpTableType IPV_4_TT = new BgpTableTypeImpl(Ipv4AddressFamily.class, UnicastSubsequentAddressFamily.class);
  67     private BGPDispatcherImpl serverDispatcher;
  68     private TestClientDispatcher clientDispatcher;
  69     private BGPPeerRegistry registry;
  70     private SimpleSessionListener clientListener;
  71     private SimpleSessionListener serverListener;
  72     private EventLoopGroup boss;
  73     private EventLoopGroup worker;
  74
  75     @Before
  76     public void setUp() throws BGPDocumentedException {
  77         if (Epoll.isAvailable()) {
  78             this.boss = new EpollEventLoopGroup();
  79             this.worker = new EpollEventLoopGroup();
  80         } else {
  81             this.boss = new NioEventLoopGroup();
  82             this.worker = new NioEventLoopGroup();
  83         }
  84         this.registry = new StrictBGPPeerRegistry();
  85         this.clientListener = new SimpleSessionListener();
  86         final BGPExtensionProviderContext ctx = ServiceLoaderBGPExtensionProviderContext.getSingletonInstance();
  87         this.serverDispatcher = new BGPDispatcherImpl(ctx.getMessageRegistry(), this.boss, this.worker);
  88         configureClient(ctx);
  89     }
  90
  91     static <T extends Future> void waitFutureSuccess(final T future) throws InterruptedException {
  92         final CountDownLatch latch = new CountDownLatch(1);
  93         future.addListener(future1 -> latch.countDown());
  94         Uninterruptibles.awaitUninterruptibly(latch, 10, TimeUnit.SECONDS);
  95     }
  96
  97
  98     public static void checkIdleState (final SimpleSessionListener listener){
  99         Stopwatch sw = Stopwatch.createStarted();
 100         while(sw.elapsed(TimeUnit.SECONDS) <= 10) {
 101             if (BGPSessionImpl.State.IDLE != listener.getState()){
 102                 Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
 103             } else {
 104                 return;
 105             }
 106         }
 107         Assert.fail();
 108     }
 109
 110     private void configureClient(final BGPExtensionProviderContext ctx) {
 111         final InetSocketAddress clientAddress = InetSocketAddressUtil.getRandomLoopbackInetSocketAddress();
 112         final IpAddress clientPeerIp = new IpAddress(new Ipv4Address(clientAddress.getAddress().getHostAddress()));
 113         this.registry.addPeer(clientPeerIp, this.clientListener, createPreferences(clientAddress));
 114         this.clientDispatcher = new TestClientDispatcher(this.boss, this.worker, ctx.getMessageRegistry(), clientAddress);
 115     }
 116
 117     private Channel createServer(final InetSocketAddress serverAddress) throws InterruptedException {
 118         this.serverListener = new SimpleSessionListener();
 119         this.registry.addPeer(new IpAddress(new Ipv4Address(serverAddress.getAddress().getHostAddress())), this.serverListener, createPreferences(serverAddress));
 120         LoggerFactory.getLogger(BGPDispatcherImplTest.class).info("createServer");
 121         final ChannelFuture future = this.serverDispatcher.createServer(this.registry, serverAddress);
 122         future.addListener(new GenericFutureListener<Future<Void>>() {
 123             @Override
 124             public void operationComplete(final Future<Void> future) {
 125                 Preconditions.checkArgument(future.isSuccess(), "Unable to start bgp server on %s", future.cause());
 126             }
 127         });
 128         waitFutureSuccess(future);
 129         return future.channel();
 130     }
 131
 132     @After
 133     public void tearDown() throws Exception {
 134         this.serverDispatcher.close();
 135         this.registry.close();
 136         this.worker.shutdownGracefully().awaitUninterruptibly();
 137         this.boss.shutdownGracefully().awaitUninterruptibly();
 138     }
 139
 140     @Test
 141     public void testCreateClient() throws InterruptedException, ExecutionException {
 142         final InetSocketAddress serverAddress = InetSocketAddressUtil.getRandomLoopbackInetSocketAddress();
 143         final Channel serverChannel = createServer(serverAddress);
 144         Thread.sleep(1000);
 145         final Future<BGPSessionImpl> futureClient = this.clientDispatcher.createClient(serverAddress, this.registry, 2, Optional.absent());
 146         waitFutureSuccess(futureClient);
 147         final BGPSessionImpl session = futureClient.get();
 148         Assert.assertEquals(BGPSessionImpl.State.UP, this.clientListener.getState());
 149         Assert.assertEquals(BGPSessionImpl.State.UP, this.serverListener.getState());
 150         Assert.assertEquals(AS_NUMBER, session.getAsNumber());
 151         Assert.assertEquals(Sets.newHashSet(IPV_4_TT), session.getAdvertisedTableTypes());
 152         Assert.assertTrue(serverChannel.isWritable());
 153         session.close();
 154         this.serverListener.releaseConnection();
 155         checkIdleState(this.clientListener);
 156         checkIdleState(this.serverListener);
 157     }
 158
 159     @Test
 160     public void testCreateReconnectingClient() throws Exception {
 161         final InetSocketAddress serverAddress = InetSocketAddressUtil.getRandomLoopbackInetSocketAddress();
 162         final Future<Void> future = this.clientDispatcher.createReconnectingClient(serverAddress, this.registry, RETRY_TIMER, Optional.absent());
 163         waitFutureSuccess(future);
 164         final Channel serverChannel = createServer(serverAddress);
 165         Assert.assertEquals(BGPSessionImpl.State.UP, this.serverListener.getState());
 166         Assert.assertTrue(serverChannel.isWritable());
 167         future.cancel(true);
 168         this.serverListener.releaseConnection();
 169         checkIdleState(this.serverListener);
 170     }
 171
 172     private BGPSessionPreferences createPreferences(final InetSocketAddress socketAddress) {
 173         final List<BgpParameters> tlvs = Lists.newArrayList();
 174         final List<OptionalCapabilities> capas = Lists.newArrayList();
 175         capas.add(new OptionalCapabilitiesBuilder().setCParameters(new CParametersBuilder().addAugmentation(
 176             CParameters1.class, new CParameters1Builder().setMultiprotocolCapability(new MultiprotocolCapabilityBuilder()
 177                 .setAfi(IPV_4_TT.getAfi()).setSafi(IPV_4_TT.getSafi()).build()).build())
 178             .setAs4BytesCapability(new As4BytesCapabilityBuilder().setAsNumber(new AsNumber(30L)).build())
 179             .build()).build());
 180         capas.add(new OptionalCapabilitiesBuilder().setCParameters(BgpExtendedMessageUtil.EXTENDED_MESSAGE_CAPABILITY).build());
 181         tlvs.add(new BgpParametersBuilder().setOptionalCapabilities(capas).build());
 182         final BgpId bgpId = new BgpId(new Ipv4Address(socketAddress.getAddress().getHostAddress()));
 183         return new BGPSessionPreferences(AS_NUMBER, HOLD_TIMER, bgpId, AS_NUMBER, tlvs, Optional.absent());
 184     }
 185 }