openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/serialization/factories/GroupModInputMessageFactory.java

   1 /*
   2  * Copyright (c) 2013 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.openflowjava.protocol.impl.serialization.factories;
  10
  11 import io.netty.buffer.ByteBuf;
  12 import java.util.List;
  13 import org.opendaylight.openflowjava.protocol.api.extensibility.OFSerializer;
  14 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistry;
  15 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistryInjector;
  16 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  17 import org.opendaylight.openflowjava.protocol.impl.util.ListSerializer;
  18 import org.opendaylight.openflowjava.protocol.impl.util.TypeKeyMakerFactory;
  19 import org.opendaylight.openflowjava.util.ByteBufUtils;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GroupMod;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.buckets.grouping.BucketsList;
  22
  23 /**
  24  * Translates GroupMod messages.
  25  * OF protocol versions: 1.3.
  26  * @author timotej.kubas
  27  * @author michal.polkorab
  28  */
  29 public class GroupModInputMessageFactory implements OFSerializer<GroupMod>, SerializerRegistryInjector {
  30     private static final byte MESSAGE_TYPE = 15;
  31     private static final byte PADDING_IN_GROUP_MOD_MESSAGE = 1;
  32     private static final byte PADDING_IN_BUCKET = 4;
  33     private SerializerRegistry registry;
  34
  35     @Override
  36     public void serialize(GroupMod message, ByteBuf outBuffer) {
  37         ByteBufUtils.writeOFHeader(MESSAGE_TYPE, message, outBuffer, EncodeConstants.EMPTY_LENGTH);
  38         outBuffer.writeShort(message.getCommand().getIntValue());
  39         outBuffer.writeByte(message.getType().getIntValue());
  40         outBuffer.writeZero(PADDING_IN_GROUP_MOD_MESSAGE);
  41         outBuffer.writeInt(message.getGroupId().getValue().intValue());
  42         serializerBuckets(message.getBucketsList(), outBuffer);
  43         ByteBufUtils.updateOFHeaderLength(outBuffer);
  44     }
  45
  46     private void serializerBuckets(List<BucketsList> buckets, ByteBuf outBuffer) {
  47         if (buckets != null) {
  48             for (BucketsList currentBucket : buckets) {
  49                 int bucketLengthIndex = outBuffer.writerIndex();
  50                 outBuffer.writeShort(EncodeConstants.EMPTY_LENGTH);
  51                 outBuffer.writeShort(currentBucket.getWeight().shortValue());
  52                 outBuffer.writeInt(currentBucket.getWatchPort().getValue().intValue());
  53                 outBuffer.writeInt(currentBucket.getWatchGroup().intValue());
  54                 outBuffer.writeZero(PADDING_IN_BUCKET);
  55                 ListSerializer.serializeList(currentBucket.getAction(), TypeKeyMakerFactory
  56                         .createActionKeyMaker(EncodeConstants.OF13_VERSION_ID), registry, outBuffer);
  57                 outBuffer.setShort(bucketLengthIndex, outBuffer.writerIndex() - bucketLengthIndex);
  58             }
  59         }
  60     }
  61
  62     @Override
  63     public void injectSerializerRegistry(SerializerRegistry serializerRegistry) {
  64         this.registry = serializerRegistry;
  65     }
  66
  67 }