com.sun.appserv.util.cache.mbeans.JmxBoundedMultiLruCache Maven / Gradle / Ivy
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/**
* @Version $Id: JmxBoundedMultiLruCache.java,v 1.6 2007/05/05 05:35:30 tcfujii 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;
}
}
}