openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/core/OFDatagramPacketEncoder.java

   1 /*
   2  * Copyright (c) 2014 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.core;
  10
  11 import java.util.List;
  12
  13 import org.opendaylight.openflowjava.protocol.impl.core.connection.UdpMessageListenerWrapper;
  14 import org.opendaylight.openflowjava.protocol.impl.serialization.SerializationFactory;
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 import io.netty.buffer.ByteBuf;
  19 import io.netty.buffer.PooledByteBufAllocator;
  20 import io.netty.channel.ChannelHandlerContext;
  21 import io.netty.channel.socket.DatagramPacket;
  22 import io.netty.handler.codec.MessageToMessageEncoder;
  23 import io.netty.util.concurrent.Future;
  24
  25 /**
  26  * @author michal.polkorab
  27  *
  28  */
  29 public class OFDatagramPacketEncoder extends MessageToMessageEncoder<UdpMessageListenerWrapper> {
  30
  31     private static final Logger LOGGER = LoggerFactory.getLogger(OFDatagramPacketEncoder.class);
  32     private SerializationFactory serializationFactory;
  33
  34     @Override
  35     protected void encode(ChannelHandlerContext ctx,
  36             UdpMessageListenerWrapper wrapper, List<Object> out) throws Exception {
  37         LOGGER.trace("Encoding");
  38         try {
  39             ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer();
  40             serializationFactory.messageToBuffer(wrapper.getMsg().getVersion(), buffer, wrapper.getMsg());
  41             out.add(new DatagramPacket(buffer, wrapper.getAddress()));
  42         } catch(Exception e) {
  43             LOGGER.warn("Message serialization failed: {}", e.getMessage());
  44             Future<Void> newFailedFuture = ctx.newFailedFuture(e);
  45             wrapper.getListener().operationComplete(newFailedFuture);
  46             return;
  47         }
  48     }
  49
  50     /**
  51      * @param serializationFactory
  52      */
  53     public void setSerializationFactory(SerializationFactory serializationFactory) {
  54         this.serializationFactory = serializationFactory;
  55     }
  56 }