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