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package com.sun.ejb.base.stats;
import javax.management.j2ee.statistics.CountStatistic;
import javax.management.j2ee.statistics.RangeStatistic;
import javax.management.j2ee.statistics.TimeStatistic;
import com.sun.ejb.spi.stats.MonitorableSFSBStoreManager;
import com.sun.enterprise.admin.monitor.stats.AverageRangeStatistic;
import com.sun.enterprise.admin.monitor.stats.BoundedRangeStatisticImpl;
import com.sun.enterprise.admin.monitor.stats.CountStatisticImpl;
import com.sun.enterprise.admin.monitor.stats.MutableAverageRangeStatisticImpl;
import com.sun.enterprise.admin.monitor.stats.MutableBoundedRangeStatisticImpl;
import com.sun.enterprise.admin.monitor.stats.MutableCountStatisticImpl;
import com.sun.enterprise.admin.monitor.stats.MutableTimeStatisticImpl;
import com.sun.enterprise.admin.monitor.stats.TimeStatisticImpl;
/**
* Implementation of StatefulSessionStoreStats
* There is once instance of this class per StatefulEJBContainer
*
* @author Mahesh Kannan
*/
public class StatefulSessionStoreStatsImpl
extends StatsImpl
implements com.sun.enterprise.admin.monitor.stats.StatefulSessionStoreStats
{
private MonitorableSFSBStoreManager provider;
private MutableBoundedRangeStatisticImpl currentSize;
private MutableCountStatisticImpl activationCount;
private MutableCountStatisticImpl activationSuccessCount;
private MutableCountStatisticImpl activationErrorCount;
private MutableCountStatisticImpl passivationCount;
private MutableCountStatisticImpl passivationSuccessCount;
private MutableCountStatisticImpl passivationErrorCount;
private MutableCountStatisticImpl expiredSessionCount;
private MutableAverageRangeStatisticImpl activationSize;
private MutableAverageRangeStatisticImpl activationTime;
private MutableAverageRangeStatisticImpl passivationSize;
private MutableAverageRangeStatisticImpl passivationTime;
private Object currentSizeLock = new Object();
private Object activationCountLock = new Object();
private Object activationSizeLock = new Object();
private Object activationTimeLock = new Object();
private Object passivationCountLock = new Object();
private Object passivationSizeLock = new Object();
private Object passivationTimeLock = new Object();
private Object expiredSessionCountLock = new Object();
private long activationCountVal;
private long activationSuccessCountVal;
private long activationErrorCountVal;
private long passivationCountVal;
private long passivationSuccessCountVal;
private long passivationErrorCountVal;
private long expiredSessionCountVal;
public StatefulSessionStoreStatsImpl(
MonitorableSFSBStoreManager provider)
{
this.provider = provider;
super.initialize("com.sun.enterprise.admin.monitor.stats.StatefulSessionStoreStats");
initialize();
}
protected StatefulSessionStoreStatsImpl(
MonitorableSFSBStoreManager provider, String intfName)
{
this.provider = provider;
super.initialize(intfName);
}
protected void initialize() {
long now = System.currentTimeMillis();
synchronized (currentSizeLock) {
currentSize = new MutableBoundedRangeStatisticImpl(
new BoundedRangeStatisticImpl(0, 0, Long.MAX_VALUE,
Long.MAX_VALUE, 0, "CurrentSize",
"bytes", "Number of sessions in store", now, now)
);
}
synchronized (activationCountLock) {
activationCount = new MutableCountStatisticImpl(
new CountStatisticImpl("ActivationCount"));
activationSuccessCount = new MutableCountStatisticImpl(
new CountStatisticImpl("ActivationSuccessCount"));
activationErrorCount = new MutableCountStatisticImpl(
new CountStatisticImpl("ActivationErrorCount"));
}
synchronized (activationSizeLock) {
activationSize = new MutableAverageRangeStatisticImpl(
new BoundedRangeStatisticImpl(0, 0, Long.MAX_VALUE,
Long.MAX_VALUE, 0, "ActivationSize",
"bytes", "Number of bytes activated", now, now)
);
}
synchronized (passivationSizeLock) {
passivationSize = new MutableAverageRangeStatisticImpl(
new BoundedRangeStatisticImpl(0, 0, Long.MAX_VALUE,
Long.MAX_VALUE, 0, "PassivationSize",
"bytes", "Number of bytes passivated", now, now)
);
}
synchronized (passivationCountLock) {
passivationCount = new MutableCountStatisticImpl(
new CountStatisticImpl("PassivationCount"));
passivationSuccessCount = new MutableCountStatisticImpl(
new CountStatisticImpl("PassivationSuccessCount"));
passivationErrorCount = new MutableCountStatisticImpl(
new CountStatisticImpl("PassivationErrorCount"));
}
synchronized (expiredSessionCountLock) {
expiredSessionCount = new MutableCountStatisticImpl(
new CountStatisticImpl("ExpiredSessionCount"));
}
synchronized (activationTimeLock) {
activationTime = new MutableAverageRangeStatisticImpl(
new BoundedRangeStatisticImpl(0, 0, Long.MAX_VALUE,
Long.MAX_VALUE, 0, "ActivationTime",
"millis", "Time spent on activation", now, now)
);
}
synchronized (passivationTimeLock) {
passivationTime = new MutableAverageRangeStatisticImpl(
new BoundedRangeStatisticImpl(0, 0, Long.MAX_VALUE,
Long.MAX_VALUE, 0, "PassivationTime",
"millis", "Time spent on passivation", now, now)
);
}
}
/**
* Returns the number of passivated / checkpointed sessions in the store
*/
public RangeStatistic getCurrentSize() {
synchronized (currentSizeLock) {
currentSize.setCount(provider.getCurrentStoreSize());
return (RangeStatistic) currentSize.unmodifiableView();
}
}
/**
* Returns the total number of sessions activated from the store
*/
public CountStatistic getActivationCount() {
synchronized (activationCountLock) {
activationCount.setCount(activationCountVal);
return (CountStatistic) activationCount.unmodifiableView();
}
}
/**
* Returns the total number of sessions successfully Activated from the store
*/
public CountStatistic getActivationSuccessCount() {
synchronized (activationCountLock) {
activationSuccessCount.setCount(activationSuccessCountVal);
return (CountStatistic) activationSuccessCount.unmodifiableView();
}
}
/**
* Returns the total number of sessions that couldn't be Activated from the store
*/
public CountStatistic getActivationErrorCount() {
synchronized (activationCountLock) {
activationErrorCount.setCount(activationErrorCountVal);
return (CountStatistic) activationErrorCount.unmodifiableView();
}
}
/**
* Returns the total number of sessions passivated using this store
*/
public CountStatistic getPassivationCount() {
synchronized (passivationCountLock) {
passivationCount.setCount(passivationCountVal);
return (CountStatistic) passivationSuccessCount.unmodifiableView();
}
}
/**
* Returns the total number of sessions successfully Passivated using the store
*/
public CountStatistic getPassivationSuccessCount() {
synchronized (passivationCountLock) {
passivationSuccessCount.setCount(passivationSuccessCountVal);
return (CountStatistic) passivationSuccessCount.unmodifiableView();
}
}
/**
* Returns the total number of sessions that couldn't be Passivated using the store
*/
public CountStatistic getPassivationErrorCount() {
synchronized (passivationCountLock) {
passivationErrorCount.setCount(passivationErrorCountVal);
return (CountStatistic) passivationSuccessCount.unmodifiableView();
}
}
/**
* Returns the total number of expired sessions that were removed by this store
*/
public CountStatistic getExpiredSessionCount() {
synchronized (expiredSessionCountLock) {
expiredSessionCount.setCount(expiredSessionCountVal);
return (CountStatistic) expiredSessionCount.unmodifiableView();
}
}
/**
* Returns the total number of bytes activated by this store including total, min, maximum
*/
public AverageRangeStatistic getActivatedBeanSize() {
synchronized (activationSizeLock) {
return (AverageRangeStatistic) activationSize.unmodifiableView();
}
}
/**
* Returns the time spent on activating beans from the store including total, min, max
*/
public AverageRangeStatistic getActivationTime() {
synchronized (activationTimeLock) {
return (AverageRangeStatistic) activationTime.unmodifiableView();
}
}
/**
* Returns the total number of bytes passivated by this store including total, min, maximum
*/
public AverageRangeStatistic getPassivatedBeanSize() {
synchronized (passivationSizeLock) {
return (AverageRangeStatistic) passivationSize.unmodifiableView();
}
}
/**
* Returns the time spent on passivating beans to the store including total, min, max
*/
public AverageRangeStatistic getPassivationTime() {
synchronized (passivationTimeLock) {
return (AverageRangeStatistic) passivationTime.unmodifiableView();
}
}
//The following methods are called from StatefulSessionStoreMonitor
//
void incrementActivationCount(boolean success) {
synchronized (activationCountLock) {
activationCountVal++;
if (success) {
activationSuccessCountVal++;
} else {
activationErrorCountVal++;
}
}
}
void incrementPassivationCount(boolean success) {
synchronized (passivationCountLock) {
passivationCountVal++;
if (success) {
passivationSuccessCountVal++;
} else {
passivationErrorCountVal++;
}
}
}
void setActivationSize(long val) {
synchronized (activationSizeLock) {
activationSize.setCount(val);
}
}
void setActivationTime(long val) {
synchronized (activationTimeLock) {
activationTime.setCount(val);
}
}
void setPassivationSize(long val) {
synchronized (passivationSizeLock) {
passivationSize.setCount(val);
}
}
void setPassivationTime(long val) {
synchronized (passivationTimeLock) {
passivationTime.setCount(val);
}
}
void incrementExpiredSessionCountVal(long val) {
synchronized (expiredSessionCountLock) {
expiredSessionCountVal += val;
}
}
protected void appendStats(StringBuffer sbuf) {
sbuf.append("currentSize=").append(provider.getCurrentStoreSize())
.append("; ")
.append("ActivationCount=").append(activationCountVal)
.append("; ")
.append("ActivationSuccessCount=").append(activationSuccessCountVal)
.append("; ")
.append("ActivationErrorCount=").append(activationErrorCountVal)
.append("; ")
.append("PassivationCount=").append(passivationCountVal)
.append("; ")
.append("PassivationSuccessCount=").append(passivationSuccessCountVal)
.append("; ")
.append("PassivationErrorCount=").append(passivationErrorCountVal)
.append("; ")
.append("ExpiredSessionsRemoved=").append(expiredSessionCountVal)
.append("; ");
appendTimeStatistic(sbuf, "ActivationSize", activationSize);
appendTimeStatistic(sbuf, "ActivationTime", activationTime);
appendTimeStatistic(sbuf, "PassivationSize", passivationSize);
appendTimeStatistic(sbuf, "PassivationTime", passivationTime);
//Do not call provider.appendStats(). It is called from
// MonitoringRegistryMediator so that all undocumented
// features are grouped together
}
protected static void appendTimeStatistic(StringBuffer sbuf, String name,
MutableAverageRangeStatisticImpl stat)
{
sbuf.append(name).append("(")
.append("min=").append(stat.getLowWaterMark()).append(", ")
.append("max=").append(stat.getHighWaterMark()).append(", ")
.append("avg=").append(stat.getAverage())
.append("); ");
}
//Some of the store attributes are (unfortunately) exposed through
// the LruSessionCache too
//Called from LruCache -> StatefulSessionStoreMonitor
int getNumExpiredSessionCount() {
synchronized (expiredSessionCountLock) {
return (int) expiredSessionCountVal;
}
}
int getNumPassivationCount() {
synchronized (passivationCountLock) {
return (int) passivationCountVal;
}
}
int getNumPassivationSuccessCount() {
synchronized (passivationCountLock) {
return (int) passivationSuccessCountVal;
}
}
int getNumPassivationErrorCount() {
synchronized (passivationCountLock) {
return (int) passivationErrorCountVal;
}
}
}