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