/****************************************************************
 * 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.imapserver.netty;

import java.net.InetSocketAddress;
import java.util.concurrent.TimeUnit;

import org.apache.james.imap.api.process.ImapSession;
import org.apache.james.protocols.impl.ChannelAttributeSupport;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.handler.timeout.IdleState;
import org.jboss.netty.handler.timeout.IdleStateHandler;
import org.jboss.netty.util.Timer;

/**
 * {@link IdleStateHandler} which will call {@link ImapSession#logout()} if the connected client did not receive or send any traffic in a given timeframe
 * 
 *
 */
public class ImapIdleStateHandler extends IdleStateHandler implements ChannelAttributeSupport{

	public ImapIdleStateHandler(Timer timer, long allIdleTime, TimeUnit unit) {
		super(timer, 0, 0, allIdleTime, unit);
	}

	@Override
	protected void channelIdle(ChannelHandlerContext ctx, IdleState state,
			long lastActivityTimeMillis) throws Exception {
		
		// check if the client did nothing for too long
		if (state.equals(IdleState.ALL_IDLE)) {
	        ImapSession session = (ImapSession) attributes.get(ctx.getChannel());
	        InetSocketAddress address = (InetSocketAddress) ctx.getChannel().getRemoteAddress();
	        
	       
	        session.getLog().info("Logout client "+ address.getHostName() + " (" + address.getAddress().getHostAddress()+ ") because it idled for too long...");
	        
	        // logout the client
	        session.logout();

		}
	}

}

/****************************************************************
 * 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.imapserver.netty;

import java.net.InetSocketAddress;
import java.util.concurrent.TimeUnit;

import org.apache.james.imap.api.process.ImapSession;
import org.apache.james.protocols.impl.ChannelAttributeSupport;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.handler.timeout.IdleState;
import org.jboss.netty.handler.timeout.IdleStateHandler;
import org.jboss.netty.util.Timer;

/**
 * {@link IdleStateHandler} which will call {@link ImapSession#logout()} if the
 * connected client did not receive or send any traffic in a given timeframe
 * 
 * 
 */
public class ImapIdleStateHandler extends IdleStateHandler implements ChannelAttributeSupport {

    public ImapIdleStateHandler(Timer timer, long allIdleTime, TimeUnit unit) {
        super(timer, 0, 0, allIdleTime, unit);
    }

    @Override
    protected void channelIdle(ChannelHandlerContext ctx, IdleState state, long lastActivityTimeMillis) throws Exception {

        // check if the client did nothing for too long
        if (state.equals(IdleState.ALL_IDLE)) {
            ImapSession session = (ImapSession) attributes.get(ctx.getChannel());
            InetSocketAddress address = (InetSocketAddress) ctx.getChannel().getRemoteAddress();

            session.getLog().info("Logout client " + address.getHostName() + " (" + address.getAddress().getHostAddress() + ") because it idled for too long...");

            // logout the client
            session.logout();

        }
    }

}

Replace tabs with spaces