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// Portions Copyright [2016] [Payara Foundation]
package com.sun.ejb.monitoring.stats;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.glassfish.external.probe.provider.StatsProviderManager;
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
* @author Mahesh Kannan
*/
// @AMXMetadata and @ManagedObject should NOT be added here on this base class.
// Need to be added to derived classes to define the individual types.
public abstract class EjbMonitoringStatsProvider {
Map methodMonitorMap;
String appName = null;
String moduleName = null;
String beanName = null;
boolean registered = false;
protected long beanId;
private CountStatisticImpl createStat = new CountStatisticImpl("CreateCount",
"count", "Number of times EJB create method is called or 3.x bean is looked up");
private CountStatisticImpl removeStat = new CountStatisticImpl("RemoveCount",
"count", "Number of times EJB remove method is called");
static final Logger _logger = EjbContainerUtilImpl.getLogger();
public EjbMonitoringStatsProvider(long beanId, String appName, String moduleName,
String beanName) {
this.beanId = beanId;
this.appName = appName;
this.moduleName = moduleName;
this.beanName = beanName;
}
public void addMethods(long beanId, String appName, String moduleName,
String beanName, String[] method_sigs) {
int bucketSz = (method_sigs.length == 0) ? 16 : method_sigs.length << 1;
methodMonitorMap = new HashMap(bucketSz);
if (this.beanId == beanId) {
for (String method_sig : method_sigs) {
EjbMethodStatsProvider monitor = methodMonitorMap.get(method_sig);
if (monitor == null) {
monitor = new EjbMethodStatsProvider(method_sig);
methodMonitorMap.put(method_sig, monitor);
}
}
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "[EJBMonitoringStatsProvider] : "
+ EjbMonitoringUtils.getLoggingName(appName, moduleName, beanName)
+ ":" + methodMonitorMap.size());
}
}
}
public void register() {
String invokerId = EjbMonitoringUtils.getInvokerId(appName, moduleName, beanName);
String beanSubTreeNode = EjbMonitoringUtils.registerComponent(
appName, moduleName, beanName, this, invokerId);
if (beanSubTreeNode != null) {
registered = true;
for (Map.Entry entry : methodMonitorMap.entrySet()) {
EjbMethodStatsProvider monitor = entry.getValue();
if (!monitor.isRegistered()) {
String node = EjbMonitoringUtils.registerMethod(beanSubTreeNode,
monitor.getStringifiedMethodName(), monitor, invokerId);
if (node != null) {
monitor.registered();
}
}
}
}
}
public void unregister() {
boolean debug = _logger.isLoggable(Level.FINE);
if (registered) {
if (debug) {
_logger.log(Level.FINE, "[EJBMonitoringStatsProvider] unregister: "
+ EjbMonitoringUtils.getLoggingName(appName, moduleName, beanName));
}
registered = false;
StatsProviderManager.unregister(this);
for ( EjbMethodStatsProvider monitor : methodMonitorMap.values()) {
if (monitor.isRegistered()) {
if (debug) {
_logger.log(Level.FINE, "[EJBMonitoringStatsProvider] unregister method: "
+ monitor.getStringifiedMethodName());
}
monitor.unregistered();
StatsProviderManager.unregister(monitor);
}
}
methodMonitorMap.clear();
}
}
@ProbeListener("glassfish:ejb:bean:methodStartEvent")
public void ejbMethodStartEvent(
@ProbeParam("beanId") long beanId,
@ProbeParam("appName") String appName,
@ProbeParam("modName") String modName,
@ProbeParam("ejbName") String ejbName,
@ProbeParam("method") String method_sig) {
if (this.beanId == beanId) {
_log("ejbMethodStartEvent", method_sig);
EjbMethodStatsProvider monitor = methodMonitorMap.get(method_sig);
if (monitor != null) {
monitor.methodStart();
}
}
}
@ProbeListener("glassfish:ejb:bean:methodEndEvent")
public void ejbMethodEndEvent(
@ProbeParam("beanId") long beanId,
@ProbeParam("appName") String appName,
@ProbeParam("modName") String modName,
@ProbeParam("ejbName") String ejbName,
@ProbeParam("exception") Throwable exception,
@ProbeParam("method") String method_sig) {
if (this.beanId == beanId) {
_log("ejbMethodEndEvent", method_sig);
EjbMethodStatsProvider monitor = methodMonitorMap.get(method_sig);
if (monitor != null) {
monitor.methodEnd((exception == null));
}
}
}
@ProbeListener("glassfish:ejb:bean:beanCreatedEvent")
public void ejbBeanCreatedEvent(
@ProbeParam("beanId") long beanId,
@ProbeParam("appName") String appName,
@ProbeParam("modName") String modName,
@ProbeParam("ejbName") String ejbName) {
if (this.beanId == beanId) {
_log("ejbBeanCreatedEvent");
createStat.increment();
}
}
@ProbeListener("glassfish:ejb:bean:beanDestroyedEvent")
public void ejbBeanDestroyedEvent(
@ProbeParam("beanId") long beanId,
@ProbeParam("appName") String appName,
@ProbeParam("modName") String modName,
@ProbeParam("ejbName") String ejbName) {
if (this.beanId == beanId) {
_log("ejbBeanDestroyedEvent");
removeStat.increment();
}
}
@ManagedAttribute(id="createcount")
@Description( "Number of times EJB create method is called")
public CountStatistic getCreateCount() {
return createStat;
}
@ManagedAttribute(id="removecount")
@Description( "Number of times EJB remove method is called")
public CountStatistic getRemoveCount() {
return removeStat;
}
protected void log(String mname, String provider) {
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("===> In " + provider + " for: ["
+ mname + "] " + EjbMonitoringUtils.getLoggingName(appName, moduleName, beanName));
}
}
private void _log(String mname) {
log(mname, "EjbMonitoringStatsProvider");
}
private void _log(String mname, String method_sig) {
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("===> In EjbMonitoringStatsProvider for: ["
+ mname + "] " + EjbMonitoringUtils.getLoggingName(appName, moduleName, beanName)
+ "::" + method_sig);
}
}
}
