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

   1 /*
   2  * Copyright (c) 2014 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.deserialization.factories;
  10
  11 import io.netty.buffer.ByteBuf;
  12
  13 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistry;
  14 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistryInjector;
  15 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  16 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  17 import org.opendaylight.openflowjava.util.ExperimenterDeserializerKeyFactory;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterMessage;
  19
  20 /**
  21  * @author michal.polkorab
  22  *
  23  */
  24 public class ExperimenterMessageFactory implements OFDeserializer<ExperimenterMessage>,
  25         DeserializerRegistryInjector {
  26
  27     /** Experimenter ID index after version, message type and length were read */
  28     private static final byte EXPERIMENTER_ID_INDEX = 4;
  29     private DeserializerRegistry deserializerRegistry;
  30
  31     @Override
  32     public ExperimenterMessage deserialize(ByteBuf message) {
  33         long expId = message.getUnsignedInt(message.readerIndex() + EXPERIMENTER_ID_INDEX);
  34         OFDeserializer<ExperimenterMessage> deserializer = deserializerRegistry.getDeserializer(
  35                 ExperimenterDeserializerKeyFactory.createExperimenterMessageDeserializerKey(
  36                         EncodeConstants.OF13_VERSION_ID, expId));
  37         return deserializer.deserialize(message);
  38     }
  39
  40     @Override
  41     public void injectDeserializerRegistry(DeserializerRegistry deserializerRegistry) {
  42         this.deserializerRegistry = deserializerRegistry;
  43     }
  44 }