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Core ACS AEM Commons OSGi Bundle. Includes commons utilities.
/*
* #%L
* ACS AEM Commons Bundle
* %%
* Copyright (C) 2016 Adobe
* %%
* Licensed 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.
* #L%
*/
package com.adobe.acs.commons.util.impl;
import javax.management.NotCompliantMBeanException;
import javax.management.openmbean.CompositeDataSupport;
import javax.management.openmbean.CompositeType;
import javax.management.openmbean.OpenDataException;
import javax.management.openmbean.OpenType;
import javax.management.openmbean.SimpleType;
import javax.management.openmbean.TabularData;
import javax.management.openmbean.TabularDataSupport;
import javax.management.openmbean.TabularType;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicLong;
public abstract class AbstractJCRCacheMBean extends AbstractCacheMBean implements JcrCacheMBean
{
//statistics
private final AtomicLong totalLoadTime = new AtomicLong();
private final AtomicLong loadCount = new AtomicLong();
private final AtomicLong loadSuccessCount = new AtomicLong();
private final AtomicLong loadExceptionCount = new AtomicLong();
private final AtomicLong hitCount = new AtomicLong();
private final AtomicLong missCount = new AtomicLong();
private final AtomicLong requestCount = new AtomicLong();
private final AtomicLong evictionCount = new AtomicLong();
private final AtomicLong totalLookupTime = new AtomicLong();
public AbstractJCRCacheMBean(T implementation, Class mbeanInterface) throws NotCompliantMBeanException
{
super(implementation, mbeanInterface);
}
protected AbstractJCRCacheMBean(Class mbeanInterface) throws NotCompliantMBeanException
{
super(mbeanInterface);
}
@Override public TabularData getCacheStats() throws OpenDataException
{
// Exposing all google guava stats.
final CompositeType cacheEntryType = new CompositeType(JMX_PN_CACHESTATS, JMX_PN_CACHESTATS,
new String[] {JMX_PN_STAT, JMX_PN_VALUE }, new String[] {JMX_PN_STAT, JMX_PN_VALUE },
new OpenType[] { SimpleType.STRING, SimpleType.STRING });
final TabularDataSupport tabularData = new TabularDataSupport(
new TabularType(JMX_PN_CACHESTATS, JMX_PN_CACHESTATS, cacheEntryType, new String[] {JMX_PN_STAT}));
final Map row = new HashMap();
row.put(JMX_PN_STAT, "Request Count");
row.put(JMX_PN_VALUE, String.valueOf(requestCount.get()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Average Lookup Time");
row.put(JMX_PN_VALUE, String.valueOf(getAvgLookupTime()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Total Lookup Time");
row.put(JMX_PN_VALUE, String.valueOf(totalLookupTime.get()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Hit Count");
row.put(JMX_PN_VALUE, String.valueOf(hitCount.get()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Hit Rate");
row.put(JMX_PN_VALUE, String.valueOf(getHitRate()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Miss Count");
row.put(JMX_PN_VALUE, String.valueOf(missCount.get()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Miss Rate");
row.put(JMX_PN_VALUE, String.valueOf(getMissRate()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Eviction Count");
row.put(JMX_PN_VALUE, String.valueOf(evictionCount.get()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Load Count");
row.put(JMX_PN_VALUE, String.valueOf(loadCount.get()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Load Exception Count");
row.put(JMX_PN_VALUE, String.valueOf(loadExceptionCount.get()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Load Exception Rate");
row.put(JMX_PN_VALUE, String.valueOf(getLoadExceptionRate()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Load Success Count");
row.put(JMX_PN_VALUE, String.valueOf(loadSuccessCount.get()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Load Success Rate");
row.put(JMX_PN_VALUE, String.valueOf(getLoadSuccessRate()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Average Load Penalty");
row.put(JMX_PN_VALUE, String.valueOf(getAvgLoadPenalty()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
row.put(JMX_PN_STAT, "Total Load Time");
row.put(JMX_PN_VALUE, String.valueOf(totalLoadTime.get()));
tabularData.put(new CompositeDataSupport(cacheEntryType, row));
return tabularData;
}
@Override
public void resetCacheStats(){
totalLoadTime.getAndSet(0);
loadCount.getAndSet(0);
loadSuccessCount.getAndSet(0);
loadExceptionCount.getAndSet(0);
hitCount.getAndSet(0);
missCount.getAndSet(0);
requestCount.getAndSet(0);
evictionCount.getAndSet(0);
totalLookupTime.getAndSet(0);
}
private long getAvgLoadPenalty()
{
return (loadCount.get() > 0) ? totalLoadTime.get() / loadCount.get() : 0;
}
private long getAvgLookupTime()
{
return (requestCount.get() > 0 ) ? totalLookupTime.get() / requestCount.get() : 0;
}
private long getLoadSuccessRate()
{
return (loadCount.get() > 0 ) ? loadSuccessCount.get() / loadCount.get() * 100 : 0;
}
private long getLoadExceptionRate()
{
return (loadCount.get() > 0) ? loadExceptionCount.get() / loadCount.get() * 100 : 0;
}
private long getMissRate()
{
return (requestCount.get() > 0 ) ? missCount.get() / requestCount.get() * 100 : 0;
}
private long getHitRate()
{
return (hitCount.get() > 0) ? hitCount.get() / requestCount.get() * 100 : 0;
}
protected final void incrementLoadCount(){
loadCount.incrementAndGet();
}
protected final void incrementLoadSuccessCount(){
loadSuccessCount.incrementAndGet();
}
protected final void incrementLoadExceptionCount(){
loadExceptionCount.incrementAndGet();
}
protected final void incrementHitCount(){
hitCount.incrementAndGet();
}
protected final void incrementMissCount(){
missCount.incrementAndGet();
}
protected final void incrementRequestCount(){
requestCount.incrementAndGet();
}
protected final void incrementEvictionCount(long delta){
evictionCount.addAndGet(delta);
}
protected final void incrementTotalLookupTime(long delta){
totalLookupTime.addAndGet(delta);
}
protected final void incrementTotalLoadTime(long delta){
totalLoadTime.addAndGet(delta);
}
}