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
  13 import java.util.List;
  14
  15 import org.opendaylight.openflowjava.protocol.api.extensibility.MessageTypeKey;
  16 import org.opendaylight.openflowjava.protocol.api.extensibility.OFSerializer;
  17 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistryInjector;
  18 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistry;
  19 import org.opendaylight.openflowjava.protocol.impl.util.ByteBufUtils;
  20 import org.opendaylight.openflowjava.protocol.impl.util.CodingUtils;
  21 import org.opendaylight.openflowjava.protocol.impl.util.EncodeConstants;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev130731.actions.grouping.Action;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GroupModInput;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.buckets.grouping.BucketsList;
  25
  26 /**
  27  * Translates GroupMod messages
  28  * @author timotej.kubas
  29  * @author michal.polkorab
  30  */
  31 public class GroupModInputMessageFactory implements OFSerializer<GroupModInput>, SerializerRegistryInjector {
  32     private static final byte MESSAGE_TYPE = 15;
  33     private static final byte PADDING_IN_GROUP_MOD_MESSAGE = 1;
  34     private static final byte PADDING_IN_BUCKET = 4;
  35     private SerializerRegistry registry;
  36
  37     @Override
  38     public void serialize(GroupModInput message, ByteBuf outBuffer) {
  39         ByteBufUtils.writeOFHeader(MESSAGE_TYPE, message, outBuffer, EncodeConstants.EMPTY_LENGTH);
  40         outBuffer.writeShort(message.getCommand().getIntValue());
  41         outBuffer.writeByte(message.getType().getIntValue());
  42         ByteBufUtils.padBuffer(PADDING_IN_GROUP_MOD_MESSAGE, outBuffer);
  43         outBuffer.writeInt(message.getGroupId().getValue().intValue());
  44         serializerBuckets(message.getBucketsList(), outBuffer);
  45         ByteBufUtils.updateOFHeaderLength(outBuffer);
  46     }
  47
  48     private void serializerBuckets(List<BucketsList> buckets, ByteBuf outBuffer) {
  49         if (buckets != null) {
  50             for (BucketsList currentBucket : buckets) {
  51                 int bucketLengthIndex = outBuffer.writerIndex();
  52                 outBuffer.writeShort(EncodeConstants.EMPTY_LENGTH);
  53                 outBuffer.writeShort(currentBucket.getWeight().shortValue());
  54                 outBuffer.writeInt(currentBucket.getWatchPort().getValue().intValue());
  55                 outBuffer.writeInt(currentBucket.getWatchGroup().intValue());
  56                 ByteBufUtils.padBuffer(PADDING_IN_BUCKET, outBuffer);
  57                 OFSerializer<Action> actionSerializer = registry.getSerializer(
  58                         new MessageTypeKey<>(EncodeConstants.OF13_VERSION_ID, Action.class));
  59                 CodingUtils.serializeList(currentBucket.getAction(), actionSerializer, outBuffer);
  60                 outBuffer.setShort(bucketLengthIndex, outBuffer.writerIndex() - bucketLengthIndex);
  61             }
  62         }
  63     }
  64
  65     @Override
  66     public void injectSerializerRegistry(SerializerRegistry serializerRegistry) {
  67         this.registry = serializerRegistry;
  68     }
  69
  70 }