public Qos copy() {
Qos _result = new Qos();
_result.COST = COST;
_result.TIME = TIME;
_result.SKILL = SKILL;
_result.UTILITY = UTILITY;
return _result;
}
// Pairwise Acc
public Qos pairwise_acc(Qos source, Qos target, JSONEFFECT _src, JSONEFFECT _trg) {
Qos _result = new Qos();
// Process the goals to check which objective functions we're using
HashSet<String> goals = new HashSet<String>();
for (String s : _src.GOAL) {
goals.add(s);
}
for (String s : _trg.GOAL) {
goals.add(s);
}
// Handle Cost Accumulation
PREF_FUNC costPref = null;
if (goals.contains("MINPRICE")) {
costPref = new MIN_COST();
} else {
costPref = new MAX_COST();
}
// Handle Time Preferences
PREF_FUNC timePref = null;
if (goals.contains("MINTIME")) {
timePref = new MIN_TIME();
} else {
timePref = new MAX_TIME();
}
// Handle Skill Accumulation
PREF_FUNC skillPref = null;
if (goals.contains("MINSKILL")) {
skillPref = new MIN_SKILL();
} else {
skillPref = new MAX_SKILL();
}
// Handle Utility Accumulation
PREF_FUNC utilityPref = null;
utilityPref = new MAX_COST();
_result.COST = costPref.combine(source.COST, target.COST);
_result.TIME = timePref.combine(source.TIME, target.TIME);
_result.SKILL = skillPref.combine(source.SKILL, target.SKILL);
_result.UTILITY =
utilityPref.compare(source.UTILITY, target.UTILITY) ? source.UTILITY : target.UTILITY;
return _result;
}