LongDelta.java
1.33 KB
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package se.lil.jm;
class LongDelta {
public String name = null;
public Long curValue = null;
public Long lastValue = null;
public Long lastFetch = null;
public Long curFetch = null;
public LongDelta() {
}
public LongDelta(Long timestamp, Long value) {
this.curFetch = timestamp;
this.curValue = value;
}
public void update(Long timestamp, Long value) {
this.lastFetch = this.curFetch;
this.curFetch = timestamp;
this.lastValue = this.curValue;
this.curValue = value;
}
public double getPerSecondValue() {
if(this.curValue != null && this.lastValue != null && this.lastFetch != null && this.curFetch != null) {
// We have values, calculate the number of gets per second
double numMilliSeconds = this.curFetch - this.lastFetch;
double delta = this.curValue - this.lastValue;
double perMilli = delta/numMilliSeconds;
return perMilli * 1000;
} else {
return 0;
}
}
public long getCurrentValue() {
if(this.curValue != null) return this.curValue;
else return 0;
}
public double getSeconds() {
if(this.lastFetch != null && this.curFetch != null) {
double numSeconds = this.curFetch - this.lastFetch;
return numSeconds/1000;
}
return 0;
}
public long getMilliSeconds() {
if(this.lastFetch != null && this.curFetch != null) {
return this.curFetch - this.lastFetch;
}
return 0;
}
}