org.apache.james.protocols.netty.ChannelGroupHandler Maven / Gradle / Ivy
/****************************************************************
* 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.james.protocols.netty;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelStateEvent;
import org.jboss.netty.channel.SimpleChannelUpstreamHandler;
import org.jboss.netty.channel.group.ChannelGroup;
/**
* Add channels to the channel group after the channel was opened.
*
* This handler is thread-safe and thus can be shared across pipelines
*
*/
public final class ChannelGroupHandler extends SimpleChannelUpstreamHandler {
private ChannelGroup channels;
public ChannelGroupHandler(ChannelGroup channels) {
this.channels = channels;
}
@Override
public void channelOpen(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception{
// Add all open channels to the global group so that they are
// closed on shutdown.
channels.add(e.getChannel());
// call the next handler in the chain
super.channelOpen(ctx, e);
}
}