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/**************************************************************************
 * Copyright 2011 Jules White
 *
 * 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.vt.ece4564.latmb;

import static org.jboss.netty.channel.Channels.pipeline;

import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.handler.codec.protobuf.ProtobufDecoder;
import org.jboss.netty.handler.codec.protobuf.ProtobufEncoder;
import org.jboss.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;
import org.jboss.netty.handler.codec.protobuf.ProtobufVarint32LengthFieldPrepender;

/**
 * Creates a newly configured {@link ChannelPipeline} for a new channel.
 * 
 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
 * @author <a href="http://gleamynode.net/">Trustin Lee</a>
 * 
 * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
 * 
 */
public class ClientPipelineFactory implements ChannelPipelineFactory {

        public ChannelPipeline getPipeline() throws Exception {
                ChannelPipeline pipeline = pipeline();

                pipeline.addLast("frameDecoder", new ProtobufVarint32FrameDecoder());
                pipeline.addLast("protobufDecoder", new ProtobufDecoder(
                                LATMBProtocol.TrackingMessage.getDefaultInstance()));

                pipeline.addLast("frameEncoder",
                                new ProtobufVarint32LengthFieldPrepender());
                pipeline.addLast("protobufEncoder", new ProtobufEncoder());

                // and then business logic.
                pipeline.addLast("handler", new ClientHandler<LATMBProtocol.TrackingMessage>());

                return pipeline;
        }
}