com.sun.appserv.util.cache.mbeans.JmxBoundedMultiLruCache Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
/**
* @Version $Id: JmxBoundedMultiLruCache.java,v 1.5 2006/10/23 20:55:57 jluehe Exp $
* Created on May 4, 2005 07:40 PM
*/
package com.sun.appserv.util.cache.mbeans;
import com.sun.appserv.util.cache.BoundedMultiLruCache;
import com.sun.appserv.util.cache.Constants;
/**
* This class provides implementation for JmxLruCache MBean
*
* @author Krishnamohan Meduri ([email protected])
*
*/
public class JmxBoundedMultiLruCache extends JmxMultiLruCache
implements JmxBoundedMultiLruCacheMBean {
private BoundedMultiLruCache boundedMultiLruCache;
public JmxBoundedMultiLruCache(BoundedMultiLruCache boundedMultiLruCache,
String name) {
super(boundedMultiLruCache, name);
this.boundedMultiLruCache = boundedMultiLruCache;
}
/**
* Returns the current size of the cache in bytes
*/
public Long getCurrentSize() {
return (Long) boundedMultiLruCache.getStatByName(
Constants.STAT_BOUNDEDMULTILRUCACHE_CURRENT_SIZE);
}
/**
* Returns the upper bound on the cache size
*/
public Long getMaxSize() {
Object object = boundedMultiLruCache.getStatByName(
Constants.STAT_BOUNDEDMULTILRUCACHE_MAX_SIZE);
/*
* BoundedMultiLruCache class returns java.lang.String with a value
* "default" if the maxSize == Constants.DEFAULT_MAX_CACHE_SIZE
* To take care of this case, the if/else is added below
*/
if (object instanceof String &&
((String) object).equals(Constants.STAT_DEFAULT)) {
return Long.valueOf(Constants.DEFAULT_MAX_CACHE_SIZE);
}
else {
return (Long) object;
}
}
}