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

   1 /*
   2  * Copyright (c) 2013 Pantheon Technologies s.r.o. and others. All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.openflowjava.protocol.impl.deserialization.factories;
  10
  11 import io.netty.buffer.ByteBuf;
  12
  13 import java.math.BigInteger;
  14
  15 import org.opendaylight.openflowjava.protocol.impl.deserialization.OFDeserializer;
  16 import org.opendaylight.openflowjava.protocol.impl.util.MatchDeserializer;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowRemovedReason;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.TableId;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemovedMessage;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemovedMessageBuilder;
  21
  22 /**
  23  * Translates FlowRemoved messages
  24  * @author michal.polkorab
  25  * @author timotej.kubas
  26  */
  27 public class FlowRemovedMessageFactory implements OFDeserializer<FlowRemovedMessage> {
  28
  29     private static FlowRemovedMessageFactory instance;
  30
  31     private FlowRemovedMessageFactory() {
  32         // singleton
  33     }
  34
  35     /**
  36      * @return singleton factory
  37      */
  38     public static synchronized FlowRemovedMessageFactory getInstance(){
  39         if(instance == null){
  40             instance = new FlowRemovedMessageFactory();
  41         }
  42         return instance;
  43     }
  44
  45     @Override
  46     public FlowRemovedMessage bufferToMessage(ByteBuf rawMessage, short version) {
  47         FlowRemovedMessageBuilder builder = new FlowRemovedMessageBuilder();
  48         builder.setVersion(version);
  49         builder.setXid(rawMessage.readUnsignedInt());
  50         byte[] cookie = new byte[Long.SIZE/Byte.SIZE];
  51         rawMessage.readBytes(cookie);
  52         builder.setCookie(new BigInteger(cookie));
  53         builder.setPriority(rawMessage.readUnsignedShort());
  54         builder.setReason(FlowRemovedReason.forValue(rawMessage.readUnsignedByte()));
  55         builder.setTableId(new TableId((long)rawMessage.readUnsignedByte()));
  56         builder.setDurationSec(rawMessage.readUnsignedInt());
  57         builder.setDurationNsec(rawMessage.readUnsignedInt());
  58         builder.setIdleTimeout(rawMessage.readUnsignedShort());
  59         builder.setHardTimeout(rawMessage.readUnsignedShort());
  60         byte[] packet_count = new byte[Long.SIZE/Byte.SIZE];
  61         rawMessage.readBytes(packet_count);
  62         builder.setPacketCount(new BigInteger(packet_count));
  63         byte[] byte_count = new byte[Long.SIZE/Byte.SIZE];
  64         rawMessage.readBytes(byte_count);
  65         builder.setByteCount(new BigInteger(byte_count));
  66         builder.setMatch(MatchDeserializer.createMatch(rawMessage));
  67         return builder.build();
  68     }
  69 }