/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.hedwig.client.netty;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.handler.codec.frame.LengthFieldBasedFrameDecoder;
import org.jboss.netty.handler.codec.frame.LengthFieldPrepender;
import org.jboss.netty.handler.codec.protobuf.ProtobufDecoder;
import org.jboss.netty.handler.codec.protobuf.ProtobufEncoder;
import org.jboss.netty.handler.ssl.SslHandler;
import org.apache.hedwig.protocol.PubSubProtocol;
public class ClientChannelPipelineFactory implements ChannelPipelineFactory {
private HedwigClientImpl client;
public ClientChannelPipelineFactory(HedwigClientImpl client) {
this.client = client;
}
// Retrieve a ChannelPipeline from the factory.
public ChannelPipeline getPipeline() throws Exception {
// Create a new ChannelPipline using the factory method from the
// Channels helper class.
ChannelPipeline pipeline = Channels.pipeline();
if (client.getSslFactory() != null) {
pipeline.addLast("ssl", new SslHandler(client.getSslFactory().getEngine()));
}
pipeline.addLast("lengthbaseddecoder", new LengthFieldBasedFrameDecoder(client.getConfiguration()
.getMaximumMessageSize(), 0, 4, 0, 4));
pipeline.addLast("lengthprepender", new LengthFieldPrepender(4));
pipeline.addLast("protobufdecoder", new ProtobufDecoder(PubSubProtocol.PubSubResponse.getDefaultInstance()));
pipeline.addLast("protobufencoder", new ProtobufEncoder());
pipeline.addLast("responsehandler", new ResponseHandler(client));
return pipeline;
}
}