openflowplugin-impl/src/test/java/org/opendaylight/openflowplugin/impl/protocol/deserialization/messages/FlowMessageDeserializerTest.java

   1 /*
   2  * Copyright (c) 2016 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
   9 package org.opendaylight.openflowplugin.impl.protocol.deserialization.messages;
  10
  11 import static org.junit.Assert.assertEquals;
  12
  13 import io.netty.buffer.ByteBuf;
  14 import io.netty.buffer.UnpooledByteBufAllocator;
  15 import org.junit.Test;
  16 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  17 import org.opendaylight.openflowjava.protocol.api.util.OxmMatchConstants;
  18 import org.opendaylight.openflowjava.protocol.impl.util.ActionConstants;
  19 import org.opendaylight.openflowjava.protocol.impl.util.InstructionConstants;
  20 import org.opendaylight.openflowjava.util.ByteBufUtils;
  21 import org.opendaylight.openflowplugin.impl.protocol.deserialization.AbstractDeserializerTest;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.PopPbbActionCase;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowMessage;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowModFlags;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.Instruction;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.ApplyActionsCase;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowModCommand;
  28
  29 public class FlowMessageDeserializerTest extends AbstractDeserializerTest {
  30
  31     private static final byte PADDING = 2;
  32
  33     private static final int TYPE = 14;
  34     private static final int XID = 42;
  35     private static final FlowModCommand COMMAND = FlowModCommand.OFPFCADD;
  36     private static final int BUFFER_ID = 26;
  37     private static final int OUT_PORT = 22;
  38     private static final int OUT_GROUP = 25;
  39
  40     private static final boolean SEND_FLOWREM = true;
  41     private static final boolean RESET_COUNTS = false;
  42     private static final boolean NO_PKTCOUNTS = true;
  43     private static final boolean NO_BYTCOUNTS = true;
  44     private static final boolean CHECK_OVERLAP = false;
  45
  46     private static final FlowModFlags FLAGS = new FlowModFlags(
  47             CHECK_OVERLAP, NO_BYTCOUNTS, NO_PKTCOUNTS, RESET_COUNTS, SEND_FLOWREM);
  48     private static final long COOKIE = 12;
  49     private static final long COOKIE_MASK = 14;
  50     private static final int TABLE_ID = 2;
  51     private static final int IDLE_TIMEOUT = 20;
  52     private static final int HARD_TIMEOUT = 35;
  53     private static final int PRIORITY = 100;
  54     private static final int OXM_MATCH_TYPE_CODE = 1;
  55     private static final int MPLS_LABEL = 135;
  56
  57     private ByteBuf buffer;
  58
  59     @Override
  60     protected void init() {
  61         buffer = UnpooledByteBufAllocator.DEFAULT.buffer();
  62     }
  63
  64     @Test
  65     public void deserialize() {
  66         // Flow header
  67         buffer.writeByte(TYPE);
  68         buffer.writeShort(EncodeConstants.EMPTY_LENGTH);
  69         buffer.writeInt(XID);
  70         buffer.writeLong(COOKIE);
  71         buffer.writeLong(COOKIE_MASK);
  72         buffer.writeByte(TABLE_ID);
  73         buffer.writeByte(COMMAND.getIntValue());
  74         buffer.writeShort(IDLE_TIMEOUT);
  75         buffer.writeShort(HARD_TIMEOUT);
  76         buffer.writeShort(PRIORITY);
  77         buffer.writeInt(BUFFER_ID);
  78         buffer.writeInt(OUT_PORT);
  79         buffer.writeInt(OUT_GROUP);
  80         buffer.writeShort(ByteBufUtils.fillBitMask(0,
  81                     FLAGS.isSENDFLOWREM(),
  82                     FLAGS.isCHECKOVERLAP(),
  83                     FLAGS.isRESETCOUNTS(),
  84                     FLAGS.isNOPKTCOUNTS(),
  85                     FLAGS.isNOBYTCOUNTS()));
  86         buffer.writeZero(PADDING);
  87
  88         // Match header
  89         int matchStartIndex = buffer.writerIndex();
  90         buffer.writeShort(OXM_MATCH_TYPE_CODE);
  91         int matchLengthIndex = buffer.writerIndex();
  92         buffer.writeShort(EncodeConstants.EMPTY_LENGTH);
  93
  94         // MplsLabel match
  95         buffer.writeShort(OxmMatchConstants.OPENFLOW_BASIC_CLASS);
  96         buffer.writeByte(OxmMatchConstants.MPLS_LABEL << 1);
  97         buffer.writeByte(EncodeConstants.SIZE_OF_INT_IN_BYTES);
  98         buffer.writeInt(MPLS_LABEL);
  99
 100         // Match footer
 101         int matchLength = buffer.writerIndex() - matchStartIndex;
 102         buffer.setShort(matchLengthIndex, matchLength);
 103         int paddingRemainder = matchLength % EncodeConstants.PADDING;
 104         if (paddingRemainder != 0) {
 105             buffer.writeZero(EncodeConstants.PADDING - paddingRemainder);
 106         }
 107
 108         // Instructions header
 109         int instructionStartIndex = buffer.writerIndex();
 110         buffer.writeShort(InstructionConstants.APPLY_ACTIONS_TYPE);
 111         int instructionLengthIndex = buffer.writerIndex();
 112         buffer.writeShort(EncodeConstants.EMPTY_LENGTH);
 113         buffer.writeZero(InstructionConstants.PADDING_IN_ACTIONS_INSTRUCTION);
 114
 115         // POP PBB action
 116         buffer.writeShort(ActionConstants.POP_PBB_CODE);
 117         buffer.writeShort(ActionConstants.GENERAL_ACTION_LENGTH);
 118         buffer.writeZero(ActionConstants.PADDING_IN_ACTION_HEADER);
 119
 120         // Count total length of instructions
 121         buffer.setShort(instructionLengthIndex, buffer.writerIndex() - instructionStartIndex);
 122
 123         // Deserialize and check everything
 124         final FlowMessage message = (FlowMessage) getFactory()
 125             .deserialize(buffer, EncodeConstants.OF13_VERSION_ID);
 126
 127         assertEquals(XID, message.getXid().intValue());
 128         assertEquals(COMMAND.getIntValue(), message.getCommand().getIntValue());
 129         assertEquals(MPLS_LABEL, message.getMatch().getProtocolMatchFields().getMplsLabel().intValue());
 130         assertEquals(1, message.getInstructions().getInstruction().size());
 131
 132         final Instruction instruction = message.getInstructions().nonnullInstruction().values().iterator().next()
 133                 .getInstruction();
 134         assertEquals(ApplyActionsCase.class, instruction.implementedInterface());
 135
 136         final ApplyActionsCase applyActions = (ApplyActionsCase) instruction;
 137         assertEquals(1, applyActions.getApplyActions().getAction().size());
 138         assertEquals(PopPbbActionCase.class, applyActions.getApplyActions().nonnullAction().values().iterator().next()
 139                 .getAction().implementedInterface());
 140     }
 141
 142 }