openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/protocol/deserialization/action/SetFieldActionDeserializer.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 package org.opendaylight.openflowplugin.impl.protocol.deserialization.action;
   9
  10 import com.google.common.base.Preconditions;
  11 import io.netty.buffer.ByteBuf;
  12 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistry;
  13 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistryInjector;
  14 import org.opendaylight.openflowjava.protocol.api.keys.MessageCodeKey;
  15 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  16 import org.opendaylight.openflowplugin.api.openflow.protocol.deserialization.MatchEntryDeserializer;
  17 import org.opendaylight.openflowplugin.extension.api.path.MatchPath;
  18 import org.opendaylight.openflowplugin.impl.protocol.deserialization.key.MessageCodeMatchKey;
  19 import org.opendaylight.openflowplugin.impl.util.MatchUtil;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.SetFieldCaseBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.set.field._case.SetField;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.Match;
  25
  26 public class SetFieldActionDeserializer extends AbstractActionDeserializer
  27         implements DeserializerRegistryInjector {
  28
  29     private static final MessageCodeKey MATCH_KEY = new MessageCodeMatchKey(
  30             EncodeConstants.OF13_VERSION_ID,
  31             EncodeConstants.EMPTY_LENGTH,
  32             Match.class,
  33             MatchPath.FLOWS_STATISTICS_UPDATE_MATCH);
  34
  35     private DeserializerRegistry registry;
  36
  37     @Override
  38     public Action deserialize(ByteBuf message) {
  39         final MatchEntryDeserializer deserializer = Preconditions.checkNotNull(registry).getDeserializer(MATCH_KEY);
  40         final MatchBuilder builder = new MatchBuilder();
  41
  42         final int startIndex = message.readerIndex();
  43         processHeader(message);
  44         deserializer.deserializeEntry(message, builder);
  45
  46         int paddingRemainder = (message.readerIndex() - startIndex) % EncodeConstants.PADDING;
  47         if (paddingRemainder != 0) {
  48             message.skipBytes(EncodeConstants.PADDING - paddingRemainder);
  49         }
  50
  51         return new SetFieldCaseBuilder()
  52                 .setSetField(MatchUtil.transformMatch(builder.build(), SetField.class))
  53                 .build();
  54     }
  55
  56     @Override
  57     public Action deserializeHeader(ByteBuf message) {
  58         processHeader(message);
  59         return new SetFieldCaseBuilder().build();
  60     }
  61
  62     @Override
  63     public void injectDeserializerRegistry(DeserializerRegistry deserializerRegistry) {
  64         registry = deserializerRegistry;
  65     }
  66
  67 }