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/*
 *  eXist Open Source Native XML Database
 *  Copyright (C) 2001-07 The eXist Project
 *  http://exist-db.org
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * $Id$
 */
package org.exist.management;

import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;

public class Cache implements CacheMXBean {
    private final String instanceId;
    private final org.exist.storage.cache.Cache cache;

    public Cache(final String instanceId, final org.exist.storage.cache.Cache cache) {
        this.instanceId = instanceId;
        this.cache = cache;
    }

    public static String getAllInstancesQuery() {
        return "org.exist.management." + '*' + ":type=CacheManager.Cache," + '*';
    }

    private static ObjectName getName(final String instanceId, final String cacheName, final String cacheType) throws MalformedObjectNameException {
        return new ObjectName("org.exist.management." + instanceId + ":type=CacheManager.Cache,name=" + cacheName + ",cache-type=" + cacheType);
    }

    @Override
    public ObjectName getName() throws MalformedObjectNameException {
        return getName(instanceId, cache.getName(), cache.getType().toString());
    }

    @Override
    public String getInstanceId() {
        return instanceId;
    }

    @Override
    public org.exist.storage.cache.Cache.CacheType getType() {
        return cache.getType();
    }

    @Override
    public int getSize() {
        return cache.getBuffers();
    }

    @Override
    public int getUsed() {
        return cache.getUsedBuffers();
    }

    @Override
    public int getHits() {
        return cache.getHits();
    }

    @Override
    public int getFails() {
        return cache.getFails();
    }

    @Override
    public String getCacheName() {
        return cache.getName();
    }
}