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/*
* Copyright 2014 Open Networking Laboratory
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onosproject.openflow.controller.impl;
import java.util.List;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.handler.codec.oneone.OneToOneEncoder;
import org.projectfloodlight.openflow.protocol.OFMessage;
/**
* Encode an openflow message for output into a ChannelBuffer, for use in a
* netty pipeline.
*/
public class OFMessageEncoder extends OneToOneEncoder {
@Override
protected Object encode(ChannelHandlerContext ctx, Channel channel,
Object msg) throws Exception {
if (!(msg instanceof List)) {
return msg;
}
@SuppressWarnings("unchecked")
List<OFMessage> msglist = (List<OFMessage>) msg;
/* XXX S can't get length of OFMessage in loxigen's openflowj??
int size = 0;
for (OFMessage ofm : msglist) {
size += ofm.getLengthU();
}*/
ChannelBuffer buf = ChannelBuffers.dynamicBuffer();
for (OFMessage ofm : msglist) {
if (ofm != null) {
ofm.writeTo(buf);
}
}
return buf;
}
}
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