package org.hibernate.stat;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.concurrent.atomic.AtomicLong;
import org.hibernate.cache.CacheKey;
import org.hibernate.cache.Region;
/**
* Second level cache statistics of a specific region
*
* @author Alex Snaps
*/
public class ConcurrentSecondLevelCacheStatisticsImpl extends CategorizedStatistics implements SecondLevelCacheStatistics {
private final transient Region region;
private AtomicLong hitCount = new AtomicLong();
private AtomicLong missCount = new AtomicLong();
private AtomicLong putCount = new AtomicLong();
ConcurrentSecondLevelCacheStatisticsImpl(Region region) {
super(region.getName());
this.region = region;
}
public long getHitCount() {
return hitCount.get();
}
public long getMissCount() {
return missCount.get();
}
public long getPutCount() {
return putCount.get();
}
public long getElementCountInMemory() {
return region.getElementCountInMemory();
}
public long getElementCountOnDisk() {
return region.getElementCountOnDisk();
}
public long getSizeInMemory() {
return region.getSizeInMemory();
}
public Map getEntries() {
Map map = new HashMap();
Iterator iter = region.toMap().entrySet().iterator();
while (iter.hasNext()) {
Map.Entry me = (Map.Entry) iter.next();
map.put(((CacheKey) me.getKey()).getKey(), me.getValue());
}
return map;
}
public String toString() {
StringBuilder buf = new StringBuilder()
.append("SecondLevelCacheStatistics")
.append("[hitCount=").append(this.hitCount)
.append(",missCount=").append(this.missCount)
.append(",putCount=").append(this.putCount);
//not sure if this would ever be null but wanted to be careful
if (region != null) {
buf.append(",elementCountInMemory=").append(this.getElementCountInMemory())
.append(",elementCountOnDisk=").append(this.getElementCountOnDisk())
.append(",sizeInMemory=").append(this.getSizeInMemory());
}
buf.append(']');
return buf.toString();
}
void incrementHitCount() {
hitCount.getAndIncrement();
}
void incrementMissCount() {
missCount.getAndIncrement();
}
void incrementPutCount() {
putCount.getAndIncrement();
}
}