opendaylight/netconf/netconf-impl/src/test/java/org/opendaylight/controller/netconf/impl/MessageParserTest.java

   1 /*
   2  * Copyright (c) 2013 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.controller.netconf.impl;
  10
  11 import static org.junit.Assert.assertArrayEquals;
  12 import static org.junit.Assert.assertEquals;
  13 import static org.junit.Assert.assertFalse;
  14 import static org.junit.Assert.assertNotNull;
  15 import static org.junit.Assert.assertTrue;
  16
  17 import java.util.Queue;
  18
  19 import io.netty.buffer.ByteBuf;
  20 import io.netty.channel.embedded.EmbeddedChannel;
  21
  22 import org.junit.Before;
  23 import org.junit.Test;
  24 import org.opendaylight.controller.netconf.api.NetconfMessage;
  25 import org.opendaylight.controller.netconf.util.handler.FramingMechanismHandlerFactory;
  26 import org.opendaylight.controller.netconf.util.handler.NetconfMessageAggregator;
  27 import org.opendaylight.controller.netconf.util.handler.NetconfMessageChunkDecoder;
  28 import org.opendaylight.controller.netconf.util.messages.FramingMechanism;
  29 import org.opendaylight.controller.netconf.util.messages.NetconfMessageFactory;
  30 import org.opendaylight.controller.netconf.util.messages.NetconfMessageHeader;
  31 import org.opendaylight.controller.netconf.util.test.XmlFileLoader;
  32 import org.opendaylight.protocol.framework.ProtocolMessageDecoder;
  33 import org.opendaylight.protocol.framework.ProtocolMessageEncoder;
  34
  35 public class MessageParserTest {
  36
  37     private NetconfMessage msg;
  38     private NetconfMessageFactory msgFactory = new NetconfMessageFactory();
  39
  40     @Before
  41     public void setUp() throws Exception {
  42         this.msg = XmlFileLoader.xmlFileToNetconfMessage("netconfMessages/getConfig.xml");
  43     }
  44
  45     @Test
  46     public void testChunkedFramingMechanismOnPipeline() throws Exception {
  47         EmbeddedChannel testChunkChannel = new EmbeddedChannel(
  48                 FramingMechanismHandlerFactory.createHandler(FramingMechanism.CHUNK),
  49                 new ProtocolMessageEncoder<NetconfMessage>(msgFactory),
  50
  51                 new NetconfMessageAggregator(FramingMechanism.CHUNK), new NetconfMessageChunkDecoder(),
  52                 new ProtocolMessageDecoder<NetconfMessage>(msgFactory));
  53
  54         testChunkChannel.writeOutbound(this.msg);
  55         Queue<Object> messages = testChunkChannel.outboundMessages();
  56         assertFalse(messages.isEmpty());
  57
  58         int msgLength = msgFactory.put(this.msg).length;
  59         int chunkCount = msgLength / NetconfMessageFactory.MAX_CHUNK_SIZE;
  60         if ((msgLength % NetconfMessageFactory.MAX_CHUNK_SIZE) != 0) {
  61             chunkCount++;
  62         }
  63         for (int i = 1; i <= chunkCount; i++) {
  64             ByteBuf recievedOutbound = (ByteBuf) messages.poll();
  65             int exptHeaderLength = NetconfMessageFactory.MAX_CHUNK_SIZE;
  66             if (i == chunkCount) {
  67                 exptHeaderLength = msgLength - (NetconfMessageFactory.MAX_CHUNK_SIZE * (i - 1));
  68                 byte[] eom = new byte[NetconfMessageFactory.endOfChunk.length];
  69                 recievedOutbound.getBytes(recievedOutbound.readableBytes() - NetconfMessageFactory.endOfChunk.length,
  70                         eom);
  71                 assertArrayEquals(NetconfMessageFactory.endOfChunk, eom);
  72             }
  73
  74             byte[] header = new byte[String.valueOf(exptHeaderLength).length() + NetconfMessageHeader.MIN_HEADER_LENGTH
  75                     - 1];
  76             recievedOutbound.getBytes(0, header);
  77             NetconfMessageHeader messageHeader = new NetconfMessageHeader();
  78             messageHeader.fromBytes(header);
  79             assertEquals(exptHeaderLength, messageHeader.getLength());
  80
  81             testChunkChannel.writeInbound(recievedOutbound);
  82         }
  83         assertTrue(messages.isEmpty());
  84
  85         NetconfMessage receivedMessage = (NetconfMessage) testChunkChannel.readInbound();
  86         assertNotNull(receivedMessage);
  87         assertTrue(this.msg.getDocument().isEqualNode(receivedMessage.getDocument()));
  88     }
  89
  90     @Test
  91     public void testEOMFramingMechanismOnPipeline() throws Exception {
  92         EmbeddedChannel testChunkChannel = new EmbeddedChannel(
  93                 FramingMechanismHandlerFactory.createHandler(FramingMechanism.EOM),
  94                 new ProtocolMessageEncoder<NetconfMessage>(msgFactory), new NetconfMessageAggregator(
  95                         FramingMechanism.EOM), new ProtocolMessageDecoder<NetconfMessage>(msgFactory));
  96
  97         testChunkChannel.writeOutbound(this.msg);
  98         ByteBuf recievedOutbound = (ByteBuf) testChunkChannel.readOutbound();
  99
 100         byte[] eom = new byte[NetconfMessageFactory.endOfMessage.length];
 101         recievedOutbound.getBytes(recievedOutbound.readableBytes() - NetconfMessageFactory.endOfMessage.length, eom);
 102         assertArrayEquals(NetconfMessageFactory.endOfMessage, eom);
 103
 104         testChunkChannel.writeInbound(recievedOutbound);
 105         NetconfMessage receivedMessage = (NetconfMessage) testChunkChannel.readInbound();
 106         assertNotNull(receivedMessage);
 107         assertTrue(this.msg.getDocument().isEqualNode(receivedMessage.getDocument()));
 108     }
 109 }