2 * Copyright (c) 2016 Pantheon Technologies s.r.o. and others. All rights reserved.
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
8 package org.opendaylight.openflowplugin.impl.protocol.serialization.messages;
10 import com.google.common.base.MoreObjects;
11 import io.netty.buffer.ByteBuf;
12 import java.util.Comparator;
13 import java.util.Optional;
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.openflowplugin.api.OFConstants;
18 import org.opendaylight.openflowplugin.impl.protocol.serialization.util.ActionUtil;
19 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.common.OrderComparator;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.GroupMessage;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.buckets.Bucket;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.GroupModCommand;
23 import org.opendaylight.yangtools.yang.common.Uint16;
26 * Translates GroupMod messages.
27 * OF protocol versions: 1.3.
29 public class GroupMessageSerializer extends AbstractMessageSerializer<GroupMessage> implements
30 SerializerRegistryInjector {
31 private static final byte PADDING_IN_GROUP_MOD_MESSAGE = 1;
32 private static final byte PADDING_IN_BUCKET = 4;
33 private static final int OFPGC_ADD_OR_MOD = 32768;
34 private final boolean isGroupAddModEnabled;
36 private static final Comparator<Bucket> COMPARATOR = (bucket1, bucket2) -> {
37 if (bucket1.getBucketId() == null || bucket2.getBucketId() == null) {
40 return bucket1.getBucketId().getValue().compareTo(bucket2.getBucketId().getValue());
43 private SerializerRegistry registry;
45 public GroupMessageSerializer(final boolean isGroupAddModEnabled) {
46 this.isGroupAddModEnabled = isGroupAddModEnabled;
50 public void serialize(final GroupMessage message, final ByteBuf outBuffer) {
51 final int index = outBuffer.writerIndex();
52 super.serialize(message, outBuffer);
53 if (isGroupAddModEnabled) {
54 if (message.getCommand().equals(GroupModCommand.OFPGCADD)
55 || message.getCommand().equals(GroupModCommand.OFPGCMODIFY)) {
56 outBuffer.writeShort(OFPGC_ADD_OR_MOD);
58 outBuffer.writeShort(message.getCommand().getIntValue());
61 outBuffer.writeShort(message.getCommand().getIntValue());
63 outBuffer.writeByte(message.getGroupType().getIntValue());
64 outBuffer.writeZero(PADDING_IN_GROUP_MOD_MESSAGE);
65 outBuffer.writeInt(message.getGroupId().getValue().intValue());
67 Optional.ofNullable(message.getBuckets())
68 .filter(b -> !GroupModCommand.OFPGCDELETE.equals(message.getCommand()))
69 .flatMap(b -> Optional.ofNullable(b.getBucket()))
70 .ifPresent(b -> b.stream()
73 final int bucketIndex = outBuffer.writerIndex();
74 outBuffer.writeShort(EncodeConstants.EMPTY_LENGTH);
75 outBuffer.writeShort(MoreObjects.firstNonNull(bucket.getWeight(), Uint16.ZERO).toJava());
76 outBuffer.writeInt(MoreObjects.firstNonNull(bucket.getWatchPort(), OFConstants.OFPG_ANY)
78 outBuffer.writeInt(MoreObjects.firstNonNull(bucket.getWatchGroup(), OFConstants.OFPG_ANY)
80 outBuffer.writeZero(PADDING_IN_BUCKET);
82 Optional.ofNullable(bucket.getAction()).ifPresent(as -> as
84 .sorted(OrderComparator.build())
85 .forEach(a -> ActionUtil.writeAction(
87 OFConstants.OFP_VERSION_1_3,
91 outBuffer.setShort(bucketIndex, outBuffer.writerIndex() - bucketIndex);
93 outBuffer.setShort(index + 2, outBuffer.writerIndex() - index);
97 protected byte getMessageType() {
102 public void injectSerializerRegistry(final SerializerRegistry serializerRegistry) {
103 registry = serializerRegistry;