openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/factories/OF10FlowRemovedMessageFactory.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.openflowjava.protocol.impl.util.OF10MatchDeserializer;\r
  10 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowRemovedReason;\r
  11 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemovedMessage;\r
  12 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemovedMessageBuilder;\r
  13 \r
  14 /**\r
  15  * Translates FlowRemoved messages (OpenFlow v1.0)\r
  16  * @author michal.polkorab\r
  17  */\r
  18 public class OF10FlowRemovedMessageFactory implements OFDeserializer<FlowRemovedMessage> {\r
  19 \r
  20     private static final byte PADDING_IN_FLOW_REMOVED_MESSAGE = 1;\r
  21     private static final byte PADDING_IN_FLOW_REMOVED_MESSAGE_2 = 2;\r
  22     \r
  23     \r
  24     private static OF10FlowRemovedMessageFactory instance;\r
  25     \r
  26     private OF10FlowRemovedMessageFactory() {\r
  27         // singleton\r
  28     }\r
  29     \r
  30     /**\r
  31      * @return singleton factory\r
  32      */\r
  33     public static synchronized OF10FlowRemovedMessageFactory getInstance(){\r
  34         if(instance == null){\r
  35             instance = new OF10FlowRemovedMessageFactory();\r
  36         }\r
  37         return instance;\r
  38     }\r
  39 \r
  40     @Override\r
  41     public FlowRemovedMessage bufferToMessage(ByteBuf rawMessage, short version) {\r
  42         FlowRemovedMessageBuilder builder = new FlowRemovedMessageBuilder();\r
  43         builder.setVersion(version);\r
  44         builder.setXid(rawMessage.readUnsignedInt());\r
  45         builder.setMatchV10(OF10MatchDeserializer.createMatchV10(rawMessage));\r
  46         byte[] cookie = new byte[Long.SIZE/Byte.SIZE];\r
  47         rawMessage.readBytes(cookie);\r
  48         builder.setCookie(new BigInteger(cookie));\r
  49         builder.setPriority(rawMessage.readUnsignedShort());\r
  50         builder.setReason(FlowRemovedReason.forValue(rawMessage.readUnsignedByte()));\r
  51         rawMessage.skipBytes(PADDING_IN_FLOW_REMOVED_MESSAGE);\r
  52         builder.setDurationSec(rawMessage.readUnsignedInt());\r
  53         builder.setDurationNsec(rawMessage.readUnsignedInt());\r
  54         builder.setIdleTimeout(rawMessage.readUnsignedShort());\r
  55         rawMessage.skipBytes(PADDING_IN_FLOW_REMOVED_MESSAGE_2);\r
  56         byte[] packet_count = new byte[Long.SIZE/Byte.SIZE];\r
  57         rawMessage.readBytes(packet_count);\r
  58         builder.setPacketCount(new BigInteger(packet_count));\r
  59         byte[] byte_count = new byte[Long.SIZE/Byte.SIZE];\r
  60         rawMessage.readBytes(byte_count);\r
  61         builder.setByteCount(new BigInteger(byte_count));\r
  62         return builder.build();\r
  63     }\r
  64 \r
  65     \r
  66 }\r