/**
* Speculative method to see if it can determine a trend. The larger the number the stronger the
* trend.
*
* @return current - interger. A positive number is an increasing trend. A negative number is a
* decreasing trend.
*/
public int getTrend() {
int retVal = 0;
// based on current ping values.
if (currPing < 0.0) {
retVal--;
} else {
if (currPing < shortTerm.getAverage()) {
retVal++;
} else {
retVal--;
}
if (currPing < medTerm.getAverage()) {
retVal++;
} else {
retVal--;
}
if (currPing < longTerm.getAverage()) {
retVal++;
} else {
retVal--;
}
}
// compare shortTerm and medium term averages.
if (shortTerm.getAverage() < medTerm.getAverage()) {
retVal++;
} else {
retVal--;
}
// compare short-term with long term.
if (shortTerm.getAverage() < longTerm.getAverage()) {
retVal++;
} else {
retVal--;
}
// compare medium-term with long-term.
if (medTerm.getAverage() < longTerm.getAverage()) {
retVal++;
} else {
retVal--;
}
// modify results based on absolute ping values.
final int ABSOLUTE_GOOD_PING_VALUE = 30;
if (currPing < ABSOLUTE_GOOD_PING_VALUE) {
retVal++;
}
if (shortTerm.getAverage() < ABSOLUTE_GOOD_PING_VALUE) {
retVal++;
}
if (medTerm.getAverage() < ABSOLUTE_GOOD_PING_VALUE) {
retVal++;
}
if (longTerm.getAverage() < ABSOLUTE_GOOD_PING_VALUE) {
retVal++;
}
// modify results based on absolute ping values that are too long.
final int ABSOLUTE_BAD_PING_VALUE = 300;
if (currPing > ABSOLUTE_BAD_PING_VALUE) {
retVal--;
}
if (shortTerm.getAverage() > ABSOLUTE_BAD_PING_VALUE) {
retVal--;
}
if (medTerm.getAverage() > ABSOLUTE_BAD_PING_VALUE) {
retVal--;
}
if (longTerm.getAverage() > ABSOLUTE_BAD_PING_VALUE) {
retVal--;
}
return retVal;
} // getTrend
public void addPingTime(int ping) {
currPing = (double) ping;
shortTerm.update((double) ping);
medTerm.update((double) ping);
longTerm.update((double) ping);
}