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 import io.netty.buffer.ByteBuf;
  17 import io.netty.buffer.Unpooled;
  18 import io.netty.channel.embedded.EmbeddedChannel;
  19
  20 import java.util.Queue;
  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.handler.NetconfMessageToXMLEncoder;
  29 import org.opendaylight.controller.netconf.util.handler.NetconfXMLToMessageDecoder;
  30 import org.opendaylight.controller.netconf.util.messages.FramingMechanism;
  31 import org.opendaylight.controller.netconf.util.messages.NetconfMessageConstants;
  32 import org.opendaylight.controller.netconf.util.messages.NetconfMessageHeader;
  33 import org.opendaylight.controller.netconf.util.test.XmlFileLoader;
  34
  35 public class MessageParserTest {
  36
  37     private NetconfMessage msg;
  38
  39     @Before
  40     public void setUp() throws Exception {
  41         this.msg = XmlFileLoader.xmlFileToNetconfMessage("netconfMessages/getConfig.xml");
  42     }
  43
  44     @Test
  45     public void testChunkedFramingMechanismOnPipeline() throws Exception {
  46         EmbeddedChannel testChunkChannel = new EmbeddedChannel(
  47                 FramingMechanismHandlerFactory.createHandler(FramingMechanism.CHUNK),
  48                 new NetconfMessageToXMLEncoder(),
  49
  50                 new NetconfMessageAggregator(FramingMechanism.CHUNK), new NetconfMessageChunkDecoder(),
  51                 new NetconfXMLToMessageDecoder());
  52
  53         testChunkChannel.writeOutbound(this.msg);
  54         Queue<Object> messages = testChunkChannel.outboundMessages();
  55         assertFalse(messages.isEmpty());
  56
  57         final NetconfMessageToXMLEncoder enc = new NetconfMessageToXMLEncoder();
  58         final ByteBuf out = Unpooled.buffer();
  59         enc.encode(null, msg, out);
  60         int msgLength = out.readableBytes();
  61
  62         int chunkCount = msgLength / NetconfMessageConstants.MAX_CHUNK_SIZE;
  63         if ((msgLength % NetconfMessageConstants.MAX_CHUNK_SIZE) != 0) {
  64             chunkCount++;
  65         }
  66         for (int i = 1; i <= chunkCount; i++) {
  67             ByteBuf recievedOutbound = (ByteBuf) messages.poll();
  68             int exptHeaderLength = NetconfMessageConstants.MAX_CHUNK_SIZE;
  69             if (i == chunkCount) {
  70                 exptHeaderLength = msgLength - (NetconfMessageConstants.MAX_CHUNK_SIZE * (i - 1));
  71                 byte[] eom = new byte[NetconfMessageConstants.endOfChunk.length];
  72                 recievedOutbound.getBytes(recievedOutbound.readableBytes() - NetconfMessageConstants.endOfChunk.length,
  73                         eom);
  74                 assertArrayEquals(NetconfMessageConstants.endOfChunk, eom);
  75             }
  76
  77             byte[] header = new byte[String.valueOf(exptHeaderLength).length()
  78                     + NetconfMessageConstants.MIN_HEADER_LENGTH - 1];
  79             recievedOutbound.getBytes(0, header);
  80             NetconfMessageHeader messageHeader = new NetconfMessageHeader();
  81             messageHeader.fromBytes(header);
  82             assertEquals(exptHeaderLength, messageHeader.getLength());
  83
  84             testChunkChannel.writeInbound(recievedOutbound);
  85         }
  86         assertTrue(messages.isEmpty());
  87
  88         NetconfMessage receivedMessage = (NetconfMessage) testChunkChannel.readInbound();
  89         assertNotNull(receivedMessage);
  90         assertTrue(this.msg.getDocument().isEqualNode(receivedMessage.getDocument()));
  91     }
  92
  93     @Test
  94     public void testEOMFramingMechanismOnPipeline() throws Exception {
  95         EmbeddedChannel testChunkChannel = new EmbeddedChannel(
  96                 FramingMechanismHandlerFactory.createHandler(FramingMechanism.EOM),
  97                 new NetconfMessageToXMLEncoder(), new NetconfMessageAggregator(
  98                         FramingMechanism.EOM), new NetconfXMLToMessageDecoder());
  99
 100         testChunkChannel.writeOutbound(this.msg);
 101         ByteBuf recievedOutbound = (ByteBuf) testChunkChannel.readOutbound();
 102
 103         byte[] eom = new byte[NetconfMessageConstants.endOfMessage.length];
 104         recievedOutbound.getBytes(recievedOutbound.readableBytes() - NetconfMessageConstants.endOfMessage.length, eom);
 105         assertArrayEquals(NetconfMessageConstants.endOfMessage, eom);
 106
 107         testChunkChannel.writeInbound(recievedOutbound);
 108         NetconfMessage receivedMessage = (NetconfMessage) testChunkChannel.readInbound();
 109         assertNotNull(receivedMessage);
 110         assertTrue(this.msg.getDocument().isEqualNode(receivedMessage.getDocument()));
 111     }
 112 }