openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/factories/OF10FlowRemovedMessageFactory.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.api.extensibility.DeserializerRegistry;
  16 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistryInjector;
  17 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  18 import org.opendaylight.openflowjava.protocol.api.keys.MessageCodeKey;
  19 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowRemovedReason;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.v10.grouping.MatchV10;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemovedMessage;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemovedMessageBuilder;
  24
  25 /**
  26  * Translates FlowRemoved messages (OpenFlow v1.0)
  27  * @author michal.polkorab
  28  */
  29 public class OF10FlowRemovedMessageFactory implements OFDeserializer<FlowRemovedMessage>,
  30         DeserializerRegistryInjector {
  31
  32     private static final byte PADDING_IN_FLOW_REMOVED_MESSAGE = 1;
  33     private static final byte PADDING_IN_FLOW_REMOVED_MESSAGE_2 = 2;
  34     private DeserializerRegistry registry;
  35
  36     @Override
  37     public FlowRemovedMessage deserialize(ByteBuf rawMessage) {
  38         FlowRemovedMessageBuilder builder = new FlowRemovedMessageBuilder();
  39         builder.setVersion((short) EncodeConstants.OF10_VERSION_ID);
  40         builder.setXid(rawMessage.readUnsignedInt());
  41         OFDeserializer<MatchV10> matchDeserializer = registry.getDeserializer(
  42                 new MessageCodeKey(EncodeConstants.OF10_VERSION_ID, EncodeConstants.EMPTY_VALUE, MatchV10.class));
  43         builder.setMatchV10(matchDeserializer.deserialize(rawMessage));
  44         byte[] cookie = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  45         rawMessage.readBytes(cookie);
  46         builder.setCookie(new BigInteger(1, cookie));
  47         builder.setPriority(rawMessage.readUnsignedShort());
  48         builder.setReason(FlowRemovedReason.forValue(rawMessage.readUnsignedByte()));
  49         rawMessage.skipBytes(PADDING_IN_FLOW_REMOVED_MESSAGE);
  50         builder.setDurationSec(rawMessage.readUnsignedInt());
  51         builder.setDurationNsec(rawMessage.readUnsignedInt());
  52         builder.setIdleTimeout(rawMessage.readUnsignedShort());
  53         rawMessage.skipBytes(PADDING_IN_FLOW_REMOVED_MESSAGE_2);
  54         byte[] packetCount = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  55         rawMessage.readBytes(packetCount);
  56         builder.setPacketCount(new BigInteger(1, packetCount));
  57         byte[] byteCount = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  58         rawMessage.readBytes(byteCount);
  59         builder.setByteCount(new BigInteger(1, byteCount));
  60         return builder.build();
  61     }
  62
  63     @Override
  64     public void injectDeserializerRegistry(DeserializerRegistry deserializerRegistry) {
  65         registry = deserializerRegistry;
  66     }
  67 }