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 io.netty.channel.ChannelHandler;
  11 import io.netty.channel.ChannelHandlerContext;
  12 import io.netty.channel.ChannelOutboundHandlerAdapter;
  13 import io.netty.channel.ChannelPromise;
  14 import io.netty.channel.embedded.EmbeddedChannel;
  15
  16 import java.net.InetSocketAddress;
  17 import java.util.concurrent.TimeUnit;
  18
  19 import org.junit.After;
  20 import org.junit.Assert;
  21 import org.junit.Before;
  22 import org.junit.Test;
  23 import org.mockito.Mock;
  24 import org.mockito.MockitoAnnotations;
  25 import org.opendaylight.openflowjava.protocol.impl.core.connection.ChannelOutboundQueue;
  26 import org.opendaylight.openflowjava.protocol.impl.core.connection.ConnectionAdapterImpl;
  27 import org.opendaylight.openflowjava.protocol.impl.core.connection.MessageListenerWrapper;
  28 import org.opendaylight.openflowjava.protocol.impl.core.connection.ResponseExpectedRpcListener;
  29 import org.opendaylight.openflowjava.protocol.impl.core.connection.RpcResponseKey;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.BarrierInput;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoInput;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoReplyInput;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterInput;
  34
  35 import com.google.common.cache.Cache;
  36 import com.google.common.cache.CacheBuilder;
  37 import com.google.common.cache.RemovalListener;
  38 import com.google.common.cache.RemovalNotification;
  39
  40 /**
  41  * @author madamjak
  42  *
  43  */
  44 public class ChannelOutboundQueue02Test {
  45     private static int counter;
  46     private static final int RPC_RESPONSE_EXPIRATION = 1;
  47     private static final RemovalListener<RpcResponseKey, ResponseExpectedRpcListener<?>> REMOVAL_LISTENER =
  48             new RemovalListener<RpcResponseKey, ResponseExpectedRpcListener<?>>() {
  49         @Override
  50         public void onRemoval(
  51                 final RemovalNotification<RpcResponseKey, ResponseExpectedRpcListener<?>> notification) {
  52             notification.getValue().discard();
  53         }
  54     };
  55
  56     @Mock EchoInput echoInput;
  57     @Mock BarrierInput barrierInput;
  58     @Mock EchoReplyInput echoReplyInput;
  59     @Mock ExperimenterInput experimenterInput;
  60     private ConnectionAdapterImpl adapter;
  61     private Cache<RpcResponseKey, ResponseExpectedRpcListener<?>> cache;
  62     /**
  63      * Initialize mocks
  64      */
  65     @Before
  66     public void setUp() {
  67         MockitoAnnotations.initMocks(this);
  68     }
  69     /**
  70      * Disconnect adapter after each test
  71      */
  72     @After
  73     public void tierDown(){
  74         if (adapter != null && adapter.isAlive()) {
  75             adapter.disconnect();
  76         }
  77     }
  78
  79     /**
  80      * Test write to closed / opened channel
  81      * @throws Exception
  82      */
  83     @Test
  84     public void test01() throws Exception {
  85         EmbeddedChannel ec = new EmbeddedChannel(new EmbededChannelHandler());
  86         adapter = new ConnectionAdapterImpl(ec,InetSocketAddress.createUnresolved("localhost", 9876));
  87         cache = CacheBuilder.newBuilder().concurrencyLevel(1).expireAfterWrite(RPC_RESPONSE_EXPIRATION, TimeUnit.MINUTES)
  88                 .removalListener(REMOVAL_LISTENER).build();
  89         adapter.setResponseCache(cache);
  90         ChannelOutboundQueue cq = (ChannelOutboundQueue) ec.pipeline().last();
  91         counter=0;
  92         adapter.barrier(barrierInput);
  93         adapter.echo(echoInput);
  94         cq.channelInactive(ec.pipeline().lastContext());
  95         ec.runPendingTasks();
  96         Assert.assertEquals("Wrong - ChannelOutboundHandlerAdapter.write was invoked on closed channel",0, counter);
  97         cq.channelActive(ec.pipeline().lastContext());
  98         counter=0;
  99         adapter.barrier(barrierInput);
 100         adapter.experimenter(experimenterInput);
 101         ec.runPendingTasks();
 102         Assert.assertEquals("Wrong - ChannelOutboundHandlerAdapter.write has not been invoked on opened channel",2, counter);
 103     }
 104
 105     /**
 106      * Test write to read only / writable channel
 107      */
 108     @Test
 109     public void test02(){
 110         ChangeWritableEmbededChannel ec = new ChangeWritableEmbededChannel(new EmbededChannelHandler());
 111         adapter = new ConnectionAdapterImpl(ec,InetSocketAddress.createUnresolved("localhost", 9876));
 112         cache = CacheBuilder.newBuilder().concurrencyLevel(1).expireAfterWrite(RPC_RESPONSE_EXPIRATION, TimeUnit.MINUTES)
 113                 .removalListener(REMOVAL_LISTENER).build();
 114         adapter.setResponseCache(cache);
 115         ec.setReadOnly();
 116         counter=0;
 117         adapter.barrier(barrierInput);
 118         adapter.echo(echoInput);
 119         ec.runPendingTasks();
 120         Assert.assertEquals("Wrong - write to readonly channel",0, counter);
 121         ec.setWritable();
 122         adapter.echoReply(echoReplyInput);
 123         adapter.echo(echoInput);
 124         ec.runPendingTasks();
 125         Assert.assertEquals("Wrong - write to writtable channel",4, counter);
 126     }
 127
 128     /**
 129      * Channel Handler for testing
 130      * @author madamjak
 131      *
 132      */
 133     private class EmbededChannelHandler extends ChannelOutboundHandlerAdapter {
 134         @Override
 135         public void write(ChannelHandlerContext ctx, Object msg,
 136                 ChannelPromise promise) throws Exception {
 137             if(msg instanceof MessageListenerWrapper){
 138                 counter++;
 139             }
 140         }
 141     }
 142
 143     /**
 144      * Class for testing - channel can change state to read only or writable
 145      * @author madamjak
 146      *
 147      */
 148     private class ChangeWritableEmbededChannel extends EmbeddedChannel {
 149         private boolean isWrittable;
 150         public ChangeWritableEmbededChannel(ChannelHandler channelHandler){
 151             super(channelHandler);
 152             setReadOnly();
 153         }
 154
 155         @Override
 156         public boolean isWritable() {
 157             return isWrittable;
 158         }
 159
 160         public void setWritable(){
 161             isWrittable = true;
 162         }
 163
 164         public void setReadOnly(){
 165             isWrittable = false;
 166         }
 167     }
 168 }