openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/factories/FlowRemovedMessageFactory.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 java.math.BigInteger;
   7
   8 import org.opendaylight.openflowjava.protocol.impl.deserialization.OFDeserializer;
   9 import org.opendaylight.openflowjava.protocol.impl.util.MatchDeserializer;
  10 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowRemovedReason;
  11 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.TableId;
  12 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemovedMessage;
  13 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemovedMessageBuilder;
  14
  15 /**
  16  * Translates FlowRemoved messages
  17  * @author michal.polkorab
  18  * @author timotej.kubas
  19  */
  20 public class FlowRemovedMessageFactory implements OFDeserializer<FlowRemovedMessage> {
  21
  22     private static FlowRemovedMessageFactory instance;
  23
  24     private FlowRemovedMessageFactory() {
  25         // singleton
  26     }
  27
  28     /**
  29      * @return singleton factory
  30      */
  31     public static synchronized FlowRemovedMessageFactory getInstance(){
  32         if(instance == null){
  33             instance = new FlowRemovedMessageFactory();
  34         }
  35         return instance;
  36     }
  37
  38     @Override
  39     public FlowRemovedMessage bufferToMessage(ByteBuf rawMessage, short version) {
  40         FlowRemovedMessageBuilder builder = new FlowRemovedMessageBuilder();
  41         builder.setVersion(version);
  42         builder.setXid(rawMessage.readUnsignedInt());
  43         byte[] cookie = new byte[Long.SIZE/Byte.SIZE];
  44         rawMessage.readBytes(cookie);
  45         builder.setCookie(new BigInteger(cookie));
  46         builder.setPriority(rawMessage.readUnsignedShort());
  47         builder.setReason(FlowRemovedReason.forValue(rawMessage.readUnsignedByte()));
  48         builder.setTableId(new TableId((long)rawMessage.readUnsignedByte()));
  49         builder.setDurationSec(rawMessage.readUnsignedInt());
  50         builder.setDurationNsec(rawMessage.readUnsignedInt());
  51         builder.setIdleTimeout(rawMessage.readUnsignedShort());
  52         builder.setHardTimeout(rawMessage.readUnsignedShort());
  53         byte[] packet_count = new byte[Long.SIZE/Byte.SIZE];
  54         rawMessage.readBytes(packet_count);
  55         builder.setPacketCount(new BigInteger(packet_count));
  56         byte[] byte_count = new byte[Long.SIZE/Byte.SIZE];
  57         rawMessage.readBytes(byte_count);
  58         builder.setByteCount(new BigInteger(byte_count));
  59         builder.setMatch(MatchDeserializer.createMatch(rawMessage));
  60         return builder.build();
  61     }
  62 }