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.NetconfMessageConstants;
  30 import org.opendaylight.controller.netconf.util.messages.NetconfMessageFactory;
  31 import org.opendaylight.controller.netconf.util.messages.NetconfMessageHeader;
  32 import org.opendaylight.controller.netconf.util.test.XmlFileLoader;
  33 import org.opendaylight.protocol.framework.ProtocolMessageDecoder;
  34 import org.opendaylight.protocol.framework.ProtocolMessageEncoder;
  35
  36 public class MessageParserTest {
  37
  38     private NetconfMessage msg;
  39     private NetconfMessageFactory msgFactory = new NetconfMessageFactory();
  40
  41     @Before
  42     public void setUp() throws Exception {
  43         this.msg = XmlFileLoader.xmlFileToNetconfMessage("netconfMessages/getConfig.xml");
  44     }
  45
  46     @Test
  47     public void testChunkedFramingMechanismOnPipeline() throws Exception {
  48         EmbeddedChannel testChunkChannel = new EmbeddedChannel(
  49                 FramingMechanismHandlerFactory.createHandler(FramingMechanism.CHUNK),
  50                 new ProtocolMessageEncoder<NetconfMessage>(msgFactory),
  51
  52                 new NetconfMessageAggregator(FramingMechanism.CHUNK), new NetconfMessageChunkDecoder(),
  53                 new ProtocolMessageDecoder<NetconfMessage>(msgFactory));
  54
  55         testChunkChannel.writeOutbound(this.msg);
  56         Queue<Object> messages = testChunkChannel.outboundMessages();
  57         assertFalse(messages.isEmpty());
  58
  59         int msgLength = this.msgFactory.put(this.msg).length;
  60         int chunkCount = msgLength / NetconfMessageConstants.MAX_CHUNK_SIZE;
  61         if ((msgLength % NetconfMessageConstants.MAX_CHUNK_SIZE) != 0) {
  62             chunkCount++;
  63         }
  64         for (int i = 1; i <= chunkCount; i++) {
  65             ByteBuf recievedOutbound = (ByteBuf) messages.poll();
  66             int exptHeaderLength = NetconfMessageConstants.MAX_CHUNK_SIZE;
  67             if (i == chunkCount) {
  68                 exptHeaderLength = msgLength - (NetconfMessageConstants.MAX_CHUNK_SIZE * (i - 1));
  69                 byte[] eom = new byte[NetconfMessageConstants.endOfChunk.length];
  70                 recievedOutbound.getBytes(recievedOutbound.readableBytes() - NetconfMessageConstants.endOfChunk.length,
  71                         eom);
  72                 assertArrayEquals(NetconfMessageConstants.endOfChunk, eom);
  73             }
  74
  75             byte[] header = new byte[String.valueOf(exptHeaderLength).length()
  76                     + NetconfMessageConstants.MIN_HEADER_LENGTH - 1];
  77             recievedOutbound.getBytes(0, header);
  78             NetconfMessageHeader messageHeader = new NetconfMessageHeader();
  79             messageHeader.fromBytes(header);
  80             assertEquals(exptHeaderLength, messageHeader.getLength());
  81
  82             testChunkChannel.writeInbound(recievedOutbound);
  83         }
  84         assertTrue(messages.isEmpty());
  85
  86         NetconfMessage receivedMessage = (NetconfMessage) testChunkChannel.readInbound();
  87         assertNotNull(receivedMessage);
  88         assertTrue(this.msg.getDocument().isEqualNode(receivedMessage.getDocument()));
  89     }
  90
  91     @Test
  92     public void testEOMFramingMechanismOnPipeline() throws Exception {
  93         EmbeddedChannel testChunkChannel = new EmbeddedChannel(
  94                 FramingMechanismHandlerFactory.createHandler(FramingMechanism.EOM),
  95                 new ProtocolMessageEncoder<NetconfMessage>(msgFactory), new NetconfMessageAggregator(
  96                         FramingMechanism.EOM), new ProtocolMessageDecoder<NetconfMessage>(msgFactory));
  97
  98         testChunkChannel.writeOutbound(this.msg);
  99         ByteBuf recievedOutbound = (ByteBuf) testChunkChannel.readOutbound();
 100
 101         byte[] eom = new byte[NetconfMessageConstants.endOfMessage.length];
 102         recievedOutbound.getBytes(recievedOutbound.readableBytes() - NetconfMessageConstants.endOfMessage.length, eom);
 103         assertArrayEquals(NetconfMessageConstants.endOfMessage, eom);
 104
 105         testChunkChannel.writeInbound(recievedOutbound);
 106         NetconfMessage receivedMessage = (NetconfMessage) testChunkChannel.readInbound();
 107         assertNotNull(receivedMessage);
 108         assertTrue(this.msg.getDocument().isEqualNode(receivedMessage.getDocument()));
 109     }
 110 }