1 /* 2 * Copyright 2009 Red Hat, Inc. 3 * 4 * Red Hat licenses this file to you under the Apache License, version 2.0 5 * (the "License"); you may not use this file except in compliance with the 6 * License. You may obtain a copy of the License at: 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 13 * License for the specific language governing permissions and limitations 14 * under the License. 15 */ 16 package org.jboss.netty.example.factorial; 17 18 import static org.jboss.netty.channel.Channels.*; 19 20 import org.jboss.netty.channel.ChannelPipeline; 21 import org.jboss.netty.channel.ChannelPipelineFactory; 22 import org.jboss.netty.handler.codec.compression.ZlibDecoder; 23 import org.jboss.netty.handler.codec.compression.ZlibEncoder; 24 import org.jboss.netty.handler.codec.compression.ZlibWrapper; 25 26 /** 27 * Creates a newly configured {@link ChannelPipeline} for a server-side channel. 28 * 29 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a> 30 * @author <a href="http://gleamynode.net/">Trustin Lee</a> 31 * 32 * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $ 33 * 34 */ 35 public class FactorialServerPipelineFactory implements 36 ChannelPipelineFactory { 37 38 public ChannelPipeline getPipeline() throws Exception { 39 ChannelPipeline pipeline = pipeline(); 40 41 // Enable stream compression (you can remove these two if unnecessary) 42 pipeline.addLast("deflater", new ZlibEncoder(ZlibWrapper.GZIP)); 43 pipeline.addLast("inflater", new ZlibDecoder(ZlibWrapper.GZIP)); 44 45 // Add the number codec first, 46 pipeline.addLast("decoder", new BigIntegerDecoder()); 47 pipeline.addLast("encoder", new NumberEncoder()); 48 49 // and then business logic. 50 // Please note we create a handler for every new channel 51 // because it has stateful properties. 52 pipeline.addLast("handler", new FactorialServerHandler()); 53 54 return pipeline; 55 } 56 }