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/*
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*
* Copyright (c) 2009-2015 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
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* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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* language governing permissions and limitations under the License.
*
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* file and include the License file at packager/legal/LICENSE.txt.
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*
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// Portions Copyright [2016] [Payara Foundation]
package com.sun.ejb.monitoring.stats;
import java.util.List;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.glassfish.external.probe.provider.annotations.*;
import org.glassfish.external.statistics.*;
import org.glassfish.external.statistics.impl.*;
import org.glassfish.gmbal.*;
import com.sun.ejb.containers.EjbContainerUtilImpl;
/**
* Event listener for the Ejb monitoring events. Used by the probe framework
* to collect and display the data.
*
* @author Marina Vatkina
*/
// TODO: find the right names
// v2: com.sun.appserv:application=MEjbApp,name=getEJBHome,type=bean-method,category=monitor,ejb-module=mejb_jar,server=server,stateless-session-bean=MEJBBean
// v3: amx:pp=/mon/server-mon[server],type=bean-method-mon,name=??????????
@AMXMetadata(type="bean-method-mon", group="monitoring", isSingleton=false)
@ManagedObject
@Description("Ejb Method Statistics")
public class EjbMethodStatsProvider {
private CountStatisticImpl executionStat = new CountStatisticImpl(
"ExecutionTime", "Milliseconds",
"Provides the time in milliseconds spent during the last "
+ "successful/unsuccessful attempt to execute the operation.");
private CountStatisticImpl invocationStat = new CountStatisticImpl(
"TotalNumInvocations", "count",
"Provides the total number of invocations of the method.");
private CountStatisticImpl errorStat = new CountStatisticImpl(
"TotalNumErrors", "count",
"Provides the total number of errors that occured during invocation "
+ "or execution of an operation.");
private CountStatisticImpl successStat = new CountStatisticImpl(
"TotalNumSuccess", "count",
"Provides the total number of successful invocations of the method.");
private TimeStatisticImpl methodStat = null;
private static ThreadLocal execThreadLocal = new ThreadLocal();
private String mname = null;
private boolean registered = false;
EjbMethodStatsProvider (String mname) {
this.mname = mname;
long now = System.currentTimeMillis();
methodStat = new TimeStatisticImpl(
0, 0, 0, 0, "MethodStatistic", "",
"Provides the number of times an operation was called, the total time "
+ "that was spent during the invocation and so on",
now, now);
}
@ManagedAttribute(id="methodstatistic")
@Description("Number of times the operation is called; total time spent during invocation, and so on.")
public TimeStatistic getMethodStatistic() {
return methodStat;
}
@ManagedAttribute(id="totalnumerrors")
@Description("Number of times the method execution resulted in an exception")
public CountStatistic getTotalNumErrors() {
return errorStat;
}
@ManagedAttribute(id="totalnumsuccess")
@Description("Number of times the method successfully executed")
public CountStatistic getTotalNumSuccess() {
return successStat;
}
@ManagedAttribute(id="executiontime")
@Description("Time (ms) spent executing method for the last successful/unsuccessful "
+ "attempt to execute the operation")
public CountStatistic getTotalExecutionTime() {
return executionStat;
}
public String getStringifiedMethodName() {
return mname;
}
void registered() {
registered = true;
}
void unregistered() {
registered = false;
}
boolean isRegistered() {
return registered;
}
void methodStart() {
List list = (ArrayList) execThreadLocal.get();
if (list == null) {
list = new ArrayList(5);
execThreadLocal.set(list);
}
list.add(System.currentTimeMillis());
invocationStat.increment();
}
void methodEnd(boolean success) {
List list = (ArrayList) execThreadLocal.get();
if ( (list != null) && (list.size() > 0) ) {
int index = list.size();
Long startTime = (Long) list.remove(index-1);
if (success) {
successStat.increment();
} else {
errorStat.increment();
}
if (startTime != null) {
long diff = System.currentTimeMillis() - startTime.longValue();
executionStat.setCount(diff);
methodStat.incrementCount(diff);
}
}
}
}