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  *
  12  * @author michal.polkorab,
  13  * @author timotej.kubas
  14  *
  15  */
  16 public class ExperimenterMessageFactory implements OFDeserializer<ExperimenterMessage>{
  17
  18     private static ExperimenterMessageFactory instance;
  19
  20     private ExperimenterMessageFactory() {
  21         //singleton
  22     }
  23
  24
  25     /**
  26      * @return singleton factory
  27      */
  28     public static synchronized ExperimenterMessageFactory getInstance(){
  29         if (instance == null){
  30            instance = new ExperimenterMessageFactory();
  31         }
  32         return instance;
  33     }
  34
  35     @Override
  36     public ExperimenterMessage bufferToMessage(ByteBuf rawMessage, short version) {
  37         ExperimenterMessageBuilder builder = new ExperimenterMessageBuilder();
  38         builder.setVersion(version);
  39         builder.setXid(rawMessage.readUnsignedInt());
  40         builder.setExperimenter(rawMessage.readUnsignedInt());
  41         builder.setExpType(rawMessage.readUnsignedInt());
  42         int remainingBytes = rawMessage.readableBytes();
  43         if (remainingBytes > 0) {
  44             builder.setData(rawMessage.readBytes(remainingBytes).array());
  45         }
  46         return builder.build();
  47     }
  48 }