/*
* Copyright 2011 The Netty Project
*
* The Netty Project 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 io.netty.example.local;
import java.util.concurrent.Executor;
import io.netty.channel.ChannelDownstreamHandler;
import io.netty.channel.ChannelEvent;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.ChannelPipelineFactory;
import io.netty.channel.ChannelUpstreamHandler;
import io.netty.channel.Channels;
import io.netty.channel.MessageEvent;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
import io.netty.handler.execution.ExecutionHandler;
public class LocalServerPipelineFactory implements ChannelPipelineFactory {
private final ExecutionHandler executionHandler;
public LocalServerPipelineFactory(Executor eventExecutor) {
executionHandler = new ExecutionHandler(eventExecutor);
}
@Override
public ChannelPipeline getPipeline() throws Exception {
final ChannelPipeline pipeline = Channels.pipeline();
pipeline.addLast("decoder", new StringDecoder());
pipeline.addLast("encoder", new StringEncoder());
pipeline.addLast("executor", executionHandler);
pipeline.addLast("handler", new EchoCloseServerHandler());
return pipeline;
}
static class EchoCloseServerHandler implements ChannelUpstreamHandler, ChannelDownstreamHandler {
@Override
public void handleUpstream(ChannelHandlerContext ctx, ChannelEvent e)
throws Exception {
if (e instanceof MessageEvent) {
final MessageEvent evt = (MessageEvent) e;
String msg = (String) evt.getMessage();
if (msg.equalsIgnoreCase("quit")) {
Channels.close(e.getChannel());
return;
}
}
ctx.sendUpstream(e);
}
@Override
public void handleDownstream(ChannelHandlerContext ctx, ChannelEvent e) {
if (e instanceof MessageEvent) {
final MessageEvent evt = (MessageEvent) e;
String msg = (String) evt.getMessage();
if (msg.equalsIgnoreCase("quit")) {
Channels.close(e.getChannel());
return;
}
System.err.println("SERVER:" + msg);
// Write back
Channels.write(e.getChannel(), msg);
}
ctx.sendDownstream(e);
}
}
}