52 lines
1.7 KiB
Java
52 lines
1.7 KiB
Java
/*
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* Copyright 2012 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.channel;
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import io.netty.channel.ChannelHandler.Sharable;
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import io.netty.logging.InternalLogger;
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import io.netty.logging.InternalLoggerFactory;
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@Sharable
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public abstract class ChannelInitializer<C extends Channel> extends ChannelStateHandlerAdapter {
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private static final InternalLogger logger = InternalLoggerFactory.getInstance(ChannelInitializer.class);
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public abstract void initChannel(C ch) throws Exception;
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@Override
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public final void channelRegistered(ChannelHandlerContext ctx)
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throws Exception {
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boolean removed = false;
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boolean success = false;
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try {
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initChannel((C) ctx.channel());
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ctx.pipeline().remove(this);
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removed = true;
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ctx.fireChannelRegistered();
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success = true;
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} catch (Throwable t) {
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logger.warn("Failed to initialize a channel. Closing: " + ctx.channel(), t);
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} finally {
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if (!removed) {
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ctx.pipeline().remove(this);
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}
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if (!success) {
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ctx.close();
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}
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}
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}
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}
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