/*
 *
 * 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.qpid.server.queue;

import org.apache.qpid.server.cluster.MembershipChangeListener;
import org.apache.qpid.server.cluster.MemberHandle;
import org.apache.qpid.server.cluster.GroupManager;
import org.apache.qpid.server.cluster.util.LogMessage;
import org.apache.qpid.AMQException;
import org.apache.log4j.Logger;

import java.util.List;

class ProxiedQueueCleanup implements MembershipChangeListener
{
    private static final Logger _logger = Logger.getLogger(ProxiedQueueCleanup.class);

    private final MemberHandle _subject;
    private final RemoteQueueProxy _queue;

    ProxiedQueueCleanup(MemberHandle subject, RemoteQueueProxy queue)
    {
        _subject = subject;
        _queue = queue;
    }

    public void changed(List<MemberHandle> members)
    {
        if(!members.contains(_subject))
        {
            try
            {
                _queue.delete();
                _logger.info(new LogMessage("Deleted {0} in response to exclusion of {1}", _queue, _subject));
            }
            catch (AMQException e)
            {
                _logger.info(new LogMessage("Failed to delete {0} in response to exclusion of {1}: {2}", _queue, _subject, e), e);
            }
        }
    }
}
