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

   1 /* Copyright (C)2013 Pantheon Technologies, s.r.o. All rights reserved. */\r
   2 package org.opendaylight.openflowjava.protocol.impl.deserialization.factories;\r
   3 \r
   4 import io.netty.buffer.ByteBuf;\r
   5 \r
   6 import java.math.BigInteger;\r
   7 \r
   8 import org.opendaylight.openflowjava.protocol.impl.deserialization.OFDeserializer;\r
   9 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetFeaturesOutput;\r
  10 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetFeaturesOutputBuilder;\r
  11 \r
  12 /**\r
  13  * @author michal.polkorab\r
  14  *\r
  15  */\r
  16 public class FeaturesReplyMessageFactory implements OFDeserializer<GetFeaturesOutput>{\r
  17     \r
  18     private static final byte PADDING_IN_FEATURES_REPLY_HEADER = 2;\r
  19     \r
  20     private static FeaturesReplyMessageFactory instance;\r
  21 \r
  22     private FeaturesReplyMessageFactory() {\r
  23         // do nothing, just singleton\r
  24     }\r
  25     \r
  26     /**\r
  27      * @return singleton factory\r
  28      */\r
  29     public static synchronized FeaturesReplyMessageFactory getInstance() {\r
  30         if (instance == null) {\r
  31             instance = new FeaturesReplyMessageFactory();\r
  32         }\r
  33         return instance;\r
  34     }\r
  35     \r
  36     @Override\r
  37     public GetFeaturesOutput bufferToMessage(ByteBuf rawMessage, short version) {\r
  38         GetFeaturesOutputBuilder builder = new GetFeaturesOutputBuilder();\r
  39         builder.setVersion(version);\r
  40         builder.setXid(rawMessage.readUnsignedInt());\r
  41         byte[] datapathId = new byte[Long.SIZE/Byte.SIZE];\r
  42         rawMessage.readBytes(datapathId);\r
  43         builder.setDatapathId(new BigInteger(datapathId));\r
  44         builder.setBuffers(rawMessage.readUnsignedInt());\r
  45         builder.setTables(rawMessage.readUnsignedByte());\r
  46         builder.setAuxiliaryId(rawMessage.readUnsignedByte());\r
  47         rawMessage.skipBytes(PADDING_IN_FEATURES_REPLY_HEADER);\r
  48         builder.setCapabilities(rawMessage.readUnsignedInt());\r
  49         builder.setReserved(rawMessage.readUnsignedInt());\r
  50         return builder.build();\r
  51     }\r
  52 \r
  53 }\r