openflow-protocol-impl/src/test/java/org/opendaylight/openflowjava/protocol/impl/core/connection/ChannelOutboundQueue02Test.java

   1 /*
   2  * Copyright (c) 2014 Pantheon Technologies s.r.o. 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.openflowjava.protocol.impl.core.connection;
   9
  10 import com.google.common.cache.Cache;
  11 import com.google.common.cache.CacheBuilder;
  12 import com.google.common.cache.RemovalListener;
  13 import com.google.common.cache.RemovalNotification;
  14 import io.netty.channel.ChannelHandler;
  15 import io.netty.channel.ChannelHandlerContext;
  16 import io.netty.channel.ChannelOutboundHandlerAdapter;
  17 import io.netty.channel.ChannelPromise;
  18 import io.netty.channel.embedded.EmbeddedChannel;
  19 import java.net.InetSocketAddress;
  20 import java.util.concurrent.TimeUnit;
  21 import org.junit.After;
  22 import org.junit.Assert;
  23 import org.junit.Before;
  24 import org.junit.Test;
  25 import org.mockito.Mock;
  26 import org.mockito.MockitoAnnotations;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.BarrierInput;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoInput;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoReplyInput;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterInput;
  31
  32 /**
  33  * @author madamjak
  34  *
  35  */
  36 public class ChannelOutboundQueue02Test {
  37     private static int counter;
  38     private static final int RPC_RESPONSE_EXPIRATION = 1;
  39     private static final RemovalListener<RpcResponseKey, ResponseExpectedRpcListener<?>> REMOVAL_LISTENER =
  40             new RemovalListener<RpcResponseKey, ResponseExpectedRpcListener<?>>() {
  41         @Override
  42         public void onRemoval(
  43                 final RemovalNotification<RpcResponseKey, ResponseExpectedRpcListener<?>> notification) {
  44             notification.getValue().discard();
  45         }
  46     };
  47
  48     @Mock EchoInput echoInput;
  49     @Mock BarrierInput barrierInput;
  50     @Mock EchoReplyInput echoReplyInput;
  51     @Mock ExperimenterInput experimenterInput;
  52     private ConnectionAdapterImpl adapter;
  53     private Cache<RpcResponseKey, ResponseExpectedRpcListener<?>> cache;
  54     /**
  55      * Initialize mocks
  56      */
  57     @Before
  58     public void setUp() {
  59         MockitoAnnotations.initMocks(this);
  60     }
  61     /**
  62      * Disconnect adapter after each test
  63      */
  64     @After
  65     public void tierDown(){
  66         if (adapter != null && adapter.isAlive()) {
  67             adapter.disconnect();
  68         }
  69     }
  70
  71     /**
  72      * Test write to closed / opened channel
  73      * @throws Exception
  74      */
  75     @Test
  76     public void test01() throws Exception {
  77         final EmbeddedChannel ec = new EmbeddedChannel(new EmbededChannelHandler());
  78         adapter = new ConnectionAdapterImpl(ec, InetSocketAddress.createUnresolved("localhost", 9876), true);
  79         cache = CacheBuilder.newBuilder().concurrencyLevel(1).expireAfterWrite(RPC_RESPONSE_EXPIRATION, TimeUnit.MINUTES)
  80                 .removalListener(REMOVAL_LISTENER).build();
  81         adapter.setResponseCache(cache);
  82         final ChannelOutboundQueue cq = (ChannelOutboundQueue) ec.pipeline().last();
  83         counter=0;
  84         adapter.barrier(barrierInput);
  85         adapter.echo(echoInput);
  86         cq.channelInactive(ec.pipeline().lastContext());
  87         ec.runPendingTasks();
  88         Assert.assertEquals("Wrong - ChannelOutboundHandlerAdapter.write was invoked on closed channel",0, counter);
  89         cq.channelActive(ec.pipeline().lastContext());
  90         counter=0;
  91         adapter.barrier(barrierInput);
  92         adapter.experimenter(experimenterInput);
  93         ec.runPendingTasks();
  94         Assert.assertEquals("Wrong - ChannelOutboundHandlerAdapter.write has not been invoked on opened channel",2, counter);
  95     }
  96
  97     /**
  98      * Test write to read only / writable channel
  99      */
 100     @Test
 101     public void test02(){
 102         final ChangeWritableEmbededChannel ec = new ChangeWritableEmbededChannel(new EmbededChannelHandler());
 103         adapter = new ConnectionAdapterImpl(ec, InetSocketAddress.createUnresolved("localhost", 9876), true);
 104         cache = CacheBuilder.newBuilder().concurrencyLevel(1).expireAfterWrite(RPC_RESPONSE_EXPIRATION, TimeUnit.MINUTES)
 105                 .removalListener(REMOVAL_LISTENER).build();
 106         adapter.setResponseCache(cache);
 107         ec.setReadOnly();
 108         counter=0;
 109         adapter.barrier(barrierInput);
 110         adapter.echo(echoInput);
 111         ec.runPendingTasks();
 112         Assert.assertEquals("Wrong - write to readonly channel",0, counter);
 113         ec.setWritable();
 114         adapter.echoReply(echoReplyInput);
 115         adapter.echo(echoInput);
 116         ec.runPendingTasks();
 117         Assert.assertEquals("Wrong - write to writtable channel",4, counter);
 118     }
 119
 120     /**
 121      * Channel Handler for testing
 122      * @author madamjak
 123      *
 124      */
 125     private class EmbededChannelHandler extends ChannelOutboundHandlerAdapter {
 126         @Override
 127         public void write(final ChannelHandlerContext ctx, final Object msg,
 128                 final ChannelPromise promise) throws Exception {
 129             if(msg instanceof MessageListenerWrapper){
 130                 counter++;
 131             }
 132         }
 133     }
 134
 135     /**
 136      * Class for testing - channel can change state to read only or writable
 137      * @author madamjak
 138      *
 139      */
 140     private class ChangeWritableEmbededChannel extends EmbeddedChannel {
 141         private boolean isWrittable;
 142         public ChangeWritableEmbededChannel(final ChannelHandler channelHandler){
 143             super(channelHandler);
 144             setReadOnly();
 145         }
 146
 147         @Override
 148         public boolean isWritable() {
 149             return isWrittable;
 150         }
 151
 152         public void setWritable(){
 153             isWrittable = true;
 154         }
 155
 156         public void setReadOnly(){
 157             isWrittable = false;
 158         }
 159     }
 160 }