openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/serialization/factories/PacketOutInputMessageFactory.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.serialization.factories;
  10
  11 import io.netty.buffer.ByteBuf;
  12
  13 import org.opendaylight.openflowjava.protocol.api.extensibility.OFSerializer;
  14 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistry;
  15 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistryInjector;
  16 import org.opendaylight.openflowjava.util.ByteBufUtils;
  17 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  18 import org.opendaylight.openflowjava.protocol.impl.util.TypeKeyMakerFactory;
  19 import org.opendaylight.openflowjava.protocol.impl.util.ListSerializer;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.PacketOutInput;
  21
  22 /**
  23  * Translates PacketOut messages
  24  * @author michal.polkorab
  25  * @author timotej.kubas
  26  */
  27 public class PacketOutInputMessageFactory implements OFSerializer<PacketOutInput>, SerializerRegistryInjector {
  28
  29     /** Code type of PacketOut message */
  30     private static final byte MESSAGE_TYPE = 13;
  31     private static final byte PADDING_IN_PACKET_OUT_MESSAGE = 6;
  32     private SerializerRegistry registry;
  33
  34     @Override
  35     public void serialize(PacketOutInput message, ByteBuf outBuffer) {
  36         ByteBufUtils.writeOFHeader(MESSAGE_TYPE, message, outBuffer, EncodeConstants.EMPTY_LENGTH);
  37         outBuffer.writeInt(message.getBufferId().intValue());
  38         outBuffer.writeInt(message.getInPort().getValue().intValue());
  39         int actionsLengthIndex = outBuffer.writerIndex();
  40         outBuffer.writeShort(EncodeConstants.EMPTY_LENGTH);
  41         ByteBufUtils.padBuffer(PADDING_IN_PACKET_OUT_MESSAGE, outBuffer);
  42         int actionsStartIndex = outBuffer.writerIndex();
  43         ListSerializer.serializeList(message.getAction(), TypeKeyMakerFactory
  44                 .createActionKeyMaker(EncodeConstants.OF13_VERSION_ID), registry, outBuffer);
  45         outBuffer.setShort(actionsLengthIndex, outBuffer.writerIndex() - actionsStartIndex);
  46         byte[] data = message.getData();
  47         if (data != null) {
  48             outBuffer.writeBytes(data);
  49         }
  50         ByteBufUtils.updateOFHeaderLength(outBuffer);
  51     }
  52
  53     @Override
  54     public void injectSerializerRegistry(SerializerRegistry serializerRegistry) {
  55         this.registry = serializerRegistry;
  56     }
  57
  58 }