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

   1 /*
   2  * Copyright (c) 2015 NetIDE Consortium 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 package org.opendaylight.openflowjava.protocol.impl.deserialization.factories;
   9
  10 import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint16;
  11 import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint32;
  12
  13 import io.netty.buffer.ByteBuf;
  14 import java.util.ArrayList;
  15 import java.util.List;
  16 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistry;
  17 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistryInjector;
  18 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  19 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  20 import org.opendaylight.openflowjava.protocol.impl.util.CodeKeyMaker;
  21 import org.opendaylight.openflowjava.protocol.impl.util.CodeKeyMakerFactory;
  22 import org.opendaylight.openflowjava.protocol.impl.util.ListDeserializer;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev150203.actions.grouping.Action;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.GroupId;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.GroupModCommand;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.GroupType;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortNumber;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GroupModInput;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GroupModInputBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.buckets.grouping.BucketsList;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.buckets.grouping.BucketsListBuilder;
  32
  33 /**
  34  * Translates GroupModInput messages.
  35  *
  36  * @author giuseppex.petralia@intel.com
  37  */
  38 public class GroupModInputMessageFactory implements OFDeserializer<GroupModInput>, DeserializerRegistryInjector {
  39
  40     private DeserializerRegistry registry;
  41     private static final byte PADDING = 1;
  42     private static final byte PADDING_IN_BUCKETS_HEADER = 4;
  43     private static final byte BUCKETS_HEADER_LENGTH = 16;
  44
  45     @Override
  46     public void injectDeserializerRegistry(DeserializerRegistry deserializerRegistry) {
  47         registry = deserializerRegistry;
  48     }
  49
  50     @Override
  51     public GroupModInput deserialize(ByteBuf rawMessage) {
  52         GroupModInputBuilder builder = new GroupModInputBuilder();
  53         builder.setVersion((short) EncodeConstants.OF13_VERSION_ID);
  54         builder.setXid(readUint32(rawMessage));
  55         builder.setCommand(GroupModCommand.forValue(rawMessage.readUnsignedShort()));
  56         builder.setType(GroupType.forValue(rawMessage.readUnsignedByte()));
  57         rawMessage.skipBytes(PADDING);
  58         builder.setGroupId(new GroupId(readUint32(rawMessage)));
  59         List<BucketsList> bucketsList = new ArrayList<>();
  60         while (rawMessage.readableBytes() > 0) {
  61             BucketsListBuilder bucketsBuilder = new BucketsListBuilder();
  62             final int bucketsLength = rawMessage.readUnsignedShort();
  63             bucketsBuilder.setWeight(readUint16(rawMessage));
  64             bucketsBuilder.setWatchPort(new PortNumber(readUint32(rawMessage)));
  65             bucketsBuilder.setWatchGroup(readUint32(rawMessage));
  66             rawMessage.skipBytes(PADDING_IN_BUCKETS_HEADER);
  67             CodeKeyMaker keyMaker = CodeKeyMakerFactory.createActionsKeyMaker(EncodeConstants.OF13_VERSION_ID);
  68             List<Action> actions = ListDeserializer.deserializeList(EncodeConstants.OF13_VERSION_ID,
  69                     bucketsLength - BUCKETS_HEADER_LENGTH, rawMessage, keyMaker, registry);
  70             bucketsBuilder.setAction(actions);
  71             bucketsList.add(bucketsBuilder.build());
  72         }
  73         builder.setBucketsList(bucketsList);
  74         return builder.build();
  75     }
  76 }