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 * 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                 *
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 * 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.                                           *
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package org.apache.james.protocols.netty;

import io.netty.channel.Channel;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.timeout.IdleStateEvent;
import io.netty.handler.timeout.IdleStateHandler;

/**
 * {@link IdleStateHandler} implementation which disconnect the {@link Channel} after a configured
 * idle timeout. Be aware that this handle is not thread safe so it can't be shared across pipelines
 */
@ChannelHandler.Sharable
public class TimeoutHandler extends IdleStateHandler {

    public TimeoutHandler(int readerIdleTimeSeconds) {
        super(readerIdleTimeSeconds, 0, 0);
    }

    @Override
    protected void channelIdle(ChannelHandlerContext ctx, IdleStateEvent evt) throws Exception {
        if (evt.equals(IdleStateEvent.READER_IDLE_STATE_EVENT)) {
            ctx.channel().close();
        }
    }


}
