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.EncodeConstants;
  17 import org.opendaylight.openflowjava.protocol.impl.util.MatchDeserializer;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowRemovedReason;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.TableId;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemovedMessage;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemovedMessageBuilder;
  22
  23 /**
  24  * Translates FlowRemoved messages
  25  * @author michal.polkorab
  26  * @author timotej.kubas
  27  */
  28 public class FlowRemovedMessageFactory implements OFDeserializer<FlowRemovedMessage> {
  29
  30     private static FlowRemovedMessageFactory instance;
  31
  32     private FlowRemovedMessageFactory() {
  33         // singleton
  34     }
  35
  36     /**
  37      * @return singleton factory
  38      */
  39     public static synchronized FlowRemovedMessageFactory getInstance(){
  40         if(instance == null){
  41             instance = new FlowRemovedMessageFactory();
  42         }
  43         return instance;
  44     }
  45
  46     @Override
  47     public FlowRemovedMessage bufferToMessage(ByteBuf rawMessage, short version) {
  48         FlowRemovedMessageBuilder builder = new FlowRemovedMessageBuilder();
  49         builder.setVersion(version);
  50         builder.setXid(rawMessage.readUnsignedInt());
  51         byte[] cookie = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  52         rawMessage.readBytes(cookie);
  53         builder.setCookie(new BigInteger(1, cookie));
  54         builder.setPriority(rawMessage.readUnsignedShort());
  55         builder.setReason(FlowRemovedReason.forValue(rawMessage.readUnsignedByte()));
  56         builder.setTableId(new TableId((long)rawMessage.readUnsignedByte()));
  57         builder.setDurationSec(rawMessage.readUnsignedInt());
  58         builder.setDurationNsec(rawMessage.readUnsignedInt());
  59         builder.setIdleTimeout(rawMessage.readUnsignedShort());
  60         builder.setHardTimeout(rawMessage.readUnsignedShort());
  61         byte[] packet_count = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  62         rawMessage.readBytes(packet_count);
  63         builder.setPacketCount(new BigInteger(1, packet_count));
  64         byte[] byte_count = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  65         rawMessage.readBytes(byte_count);
  66         builder.setByteCount(new BigInteger(1, byte_count));
  67         builder.setMatch(MatchDeserializer.createMatch(rawMessage));
  68         return builder.build();
  69     }
  70 }