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

   1 /* Copyright (C)2013 Pantheon Technologies, s.r.o. All rights reserved. */
   2 package org.opendaylight.openflowjava.protocol.impl.deserialization.factories;
   3
   4 import io.netty.buffer.ByteBuf;
   5
   6 import org.opendaylight.openflowjava.protocol.impl.deserialization.OFDeserializer;
   7 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterMessage;
   8 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterMessageBuilder;
   9
  10 /**
  11  * Translates Experimenter messages
  12  * @author michal.polkorab,
  13  * @author timotej.kubas
  14  */
  15 public class ExperimenterMessageFactory implements OFDeserializer<ExperimenterMessage>{
  16
  17     private static ExperimenterMessageFactory instance;
  18
  19     private ExperimenterMessageFactory() {
  20         //singleton
  21     }
  22
  23
  24     /**
  25      * @return singleton factory
  26      */
  27     public static synchronized ExperimenterMessageFactory getInstance(){
  28         if (instance == null){
  29            instance = new ExperimenterMessageFactory();
  30         }
  31         return instance;
  32     }
  33
  34     @Override
  35     public ExperimenterMessage bufferToMessage(ByteBuf rawMessage, short version) {
  36         ExperimenterMessageBuilder builder = new ExperimenterMessageBuilder();
  37         builder.setVersion(version);
  38         builder.setXid(rawMessage.readUnsignedInt());
  39         builder.setExperimenter(rawMessage.readUnsignedInt());
  40         builder.setExpType(rawMessage.readUnsignedInt());
  41         int remainingBytes = rawMessage.readableBytes();
  42         if (remainingBytes > 0) {
  43             builder.setData(rawMessage.readBytes(remainingBytes).array());
  44         }
  45         return builder.build();
  46     }
  47 }