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

   1 /*
   2  * Copyright (c) 2013 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.impl.deserialization.OFDeserializer;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterMessage;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterMessageBuilder;
  16
  17 /**
  18  * Translates Experimenter messages
  19  * @author michal.polkorab,
  20  * @author timotej.kubas
  21  */
  22 public class ExperimenterMessageFactory implements OFDeserializer<ExperimenterMessage>{
  23
  24     private static ExperimenterMessageFactory instance;
  25
  26     private ExperimenterMessageFactory() {
  27         //singleton
  28     }
  29
  30
  31     /**
  32      * @return singleton factory
  33      */
  34     public static synchronized ExperimenterMessageFactory getInstance(){
  35         if (instance == null){
  36            instance = new ExperimenterMessageFactory();
  37         }
  38         return instance;
  39     }
  40
  41     @Override
  42     public ExperimenterMessage bufferToMessage(ByteBuf rawMessage, short version) {
  43         ExperimenterMessageBuilder builder = new ExperimenterMessageBuilder();
  44         builder.setVersion(version);
  45         builder.setXid(rawMessage.readUnsignedInt());
  46         builder.setExperimenter(rawMessage.readUnsignedInt());
  47         builder.setExpType(rawMessage.readUnsignedInt());
  48         int remainingBytes = rawMessage.readableBytes();
  49         if (remainingBytes > 0) {
  50             builder.setData(rawMessage.readBytes(remainingBytes).array());
  51         }
  52         return builder.build();
  53     }
  54 }