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package com.sun.enterprise.admin.monitor.stats;
import org.glassfish.j2ee.statistics.BoundedRangeStatistic;
/** An implementation of a AverageRangeStatistic. All instances of this class are
* immutable. Provides all the necessary accessors for properties.
* @author Larry White
* @author Kedar Mhaswade
* @since S1AS8.1
* @version 1.0
*/
/**
*
* @author lwhite
*/
public class AverageRangeStatisticImpl implements
AverageRangeStatistic /*BoundedRangeStatistic*/ {
private BoundedRangeStatisticImpl boundedRangeStatistic = null;
private long numberOfSamples;
private long runningTotal;
/**
* Constructs an immutable instance of AverageRangeStatisticImpl.
* @param curVal The current value of this statistic
* @param highMark The highest value of this statistic, since measurement
* started
* @param lowMark The lowest value of this statistic, since measurement
* started
* @param upper The upper limit of this statistic
* @param lower The lower limit of this statistic
* @param name The name of the statistic
* @param unit The unit of measurement for this statistic
* @param desc A brief description of the statistic
* @param startTime Time in milliseconds at which the measurement was started
* @param sampleTime Time at which the last measurement was done.
* @param numberOfSamples number of samples at present
* @param runningTotal running total of sampled data at present
**/
public AverageRangeStatisticImpl(long curVal, long highMark, long lowMark,
long upper, long lower, String name,
String unit, String desc, long startTime,
long sampleTime, long numberOfSamples,
long runningTotal) {
boundedRangeStatistic = new BoundedRangeStatisticImpl(curVal, highMark, lowMark,
upper, lower, name,
unit, desc, startTime,
sampleTime);
this.numberOfSamples = numberOfSamples;
this.runningTotal = runningTotal;
}
/**
* Constructs an immutable instance of AverageRangeStatisticImpl.
* @param stats a BoundedRangeStatisticImpl
* @param numberOfSamples number of samples at present
* @param runningTotal running total of sampled data at present
**/
public AverageRangeStatisticImpl(BoundedRangeStatisticImpl stats,
long numberOfSamples, long runningTotal) {
boundedRangeStatistic = stats;
this.numberOfSamples = numberOfSamples;
this.runningTotal = runningTotal;
}
public long getCurrent() {
return boundedRangeStatistic.getCurrent();
}
public String getDescription() {
return boundedRangeStatistic.getDescription();
}
public long getHighWaterMark() {
return boundedRangeStatistic.getHighWaterMark();
}
public long getLastSampleTime() {
return boundedRangeStatistic.getLastSampleTime();
}
public long getLowWaterMark() {
return boundedRangeStatistic.getLowWaterMark();
}
/*
public long getLowerBound() {
return boundedRangeStatistic.getLowerBound();
}
*/
public String getName() {
return boundedRangeStatistic.getName();
}
public long getStartTime() {
return boundedRangeStatistic.getStartTime();
}
public String getUnit() {
return boundedRangeStatistic.getUnit();
}
/*
public long getUpperBound() {
return boundedRangeStatistic.getUpperBound();
}
*/
public long getAverage() {
if(numberOfSamples == 0) {
return -1;
} else {
return runningTotal / numberOfSamples;
}
}
/** This is a hack. This method allows us to internatinalize the descriptions.
See bug Id: 5045413
*/
public void setDescription(final String desc) {
this.boundedRangeStatistic.setDescription(desc);
}
}
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