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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 HAStatefulSessionStoreStatsImpl
extends StatefulSessionStoreStatsImpl
implements com.sun.enterprise.admin.monitor.stats.HAStatefulSessionStoreStats
{
private MutableCountStatisticImpl checkpointCount;
private MutableCountStatisticImpl checkpointSuccessCount;
private MutableCountStatisticImpl checkpointErrorCount;
private MutableAverageRangeStatisticImpl checkpointSize;
private MutableAverageRangeStatisticImpl checkpointTime;
private Object checkpointCountLock = new Object();
private Object checkpointSizeLock = new Object();
private Object checkpointTimeLock = new Object();
private long checkpointCountVal;
private long checkpointSuccessCountVal;
private long checkpointErrorCountVal;
public HAStatefulSessionStoreStatsImpl(
MonitorableSFSBStoreManager provider)
{
super(provider, "com.sun.enterprise.admin.monitor.stats.HAStatefulSessionStoreStats");
initialize();
}
protected void initialize() {
super.initialize();
synchronized (checkpointCountLock) {
checkpointCount = new MutableCountStatisticImpl(
new CountStatisticImpl("CheckpointCount"));
checkpointSuccessCount = new MutableCountStatisticImpl(
new CountStatisticImpl("CheckpointSuccessCount"));
checkpointErrorCount = new MutableCountStatisticImpl(
new CountStatisticImpl("CheckpointErrorCount"));
}
long now = System.currentTimeMillis();
synchronized (checkpointTimeLock) {
checkpointTime = new MutableAverageRangeStatisticImpl(
new BoundedRangeStatisticImpl(0, 0, 0,
0, 0, "CheckpointTime",
"millis", "Time spent on checkpointing", 0, 0)
);
}
synchronized (checkpointSizeLock) {
checkpointSize = new MutableAverageRangeStatisticImpl(
new BoundedRangeStatisticImpl(0, 0, 0,
0, 0, "CheckpointSize",
"millis", "Number of bytes checkpointed", 0, 0)
);
}
}
/**
* Returns the total number of sessions checkpointed into the store
*/
public CountStatistic getCheckpointCount() {
synchronized (checkpointCountLock) {
checkpointCount.setCount(checkpointCountVal);
return (CountStatistic) checkpointCount.unmodifiableView();
}
}
/**
* Returns the total number of sessions successfully Checkpointed into the store
*/
public CountStatistic getCheckpointSuccessCount() {
synchronized (checkpointCountLock) {
checkpointSuccessCount.setCount(checkpointSuccessCountVal);
return (CountStatistic) checkpointSuccessCount.unmodifiableView();
}
}
/**
* Returns the total number of sessions that couldn't be Checkpointed into the store
*/
public CountStatistic getCheckpointErrorCount() {
synchronized (checkpointCountLock) {
checkpointErrorCount.setCount(checkpointErrorCountVal);
return (CountStatistic) checkpointErrorCount.unmodifiableView();
}
}
/**
* Returns the number of bytes checkpointed
*/
public AverageRangeStatistic getCheckpointedBeanSize() {
synchronized (checkpointTimeLock) {
return (AverageRangeStatistic) checkpointSize.unmodifiableView();
}
}
/**
* Returns the time spent on passivating beans to the store including total, min, max
*/
public AverageRangeStatistic getCheckpointTime() {
synchronized (checkpointTimeLock) {
return (AverageRangeStatistic) checkpointTime.unmodifiableView();
}
}
public void incrementCheckpointCount(boolean success) {
synchronized (checkpointCountLock) {
checkpointCountVal++;
if (success) {
checkpointSuccessCountVal++;
} else {
checkpointErrorCountVal++;
}
}
}
public void setCheckpointSize(long val) {
synchronized (checkpointSizeLock) {
checkpointSize.setCount(val);
}
}
public void setCheckpointTime(long val) {
synchronized (checkpointTimeLock) {
checkpointTime.setCount(val);
}
}
protected void appendStats(StringBuffer sbuf) {
super.appendStats(sbuf);
sbuf.append("CheckpointCount: ").append(checkpointCountVal)
.append("; ")
.append("CheckpointSuccessCount: ").append(checkpointSuccessCountVal)
.append("; ")
.append("CheckpointErrorCount: ").append(checkpointErrorCountVal)
.append("; ");
appendTimeStatistic(sbuf, "CheckpointTime", checkpointTime);
}
}