openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/factories/OF10VendorMessageFactory.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 Vendor messages (OpenFlow v1.0)
  19  * @author michal.polkorab
  20  */
  21 public class OF10VendorMessageFactory implements OFDeserializer<ExperimenterMessage> {
  22
  23 private static OF10VendorMessageFactory instance;
  24
  25     private OF10VendorMessageFactory() {
  26         //singleton
  27     }
  28
  29     /**
  30      * @return singleton factory
  31      */
  32     public static synchronized OF10VendorMessageFactory getInstance(){
  33         if (instance == null){
  34            instance = new OF10VendorMessageFactory();
  35         }
  36         return instance;
  37     }
  38
  39     @Override
  40     public ExperimenterMessage bufferToMessage(ByteBuf rawMessage, short version) {
  41         ExperimenterMessageBuilder builder = new ExperimenterMessageBuilder();
  42         builder.setVersion(version);
  43         builder.setXid(rawMessage.readUnsignedInt());
  44         builder.setExperimenter(rawMessage.readUnsignedInt());
  45         int remainingBytes = rawMessage.readableBytes();
  46         if (remainingBytes > 0) {
  47             builder.setData(rawMessage.readBytes(remainingBytes).array());
  48         }
  49         return builder.build();
  50     }
  51 }