/**
* Returns a behavior model based on the behavior mix.
*
* @return the behavior model and null if no behavior chosen (list of behaviors empty or all
* entries have a relative frequency of 0.0).
* @throws BehaviorException when an error occurs.
*/
public BehaviorMixEntry getBehavior() throws BehaviorException {
List<Double> cumProbList = new ArrayList();
double curCumProb = 0.0;
for (int i = 0; i < this.behaviorList.size(); i++) {
/* add all to have the same number of entries in
* both lists */
curCumProb += this.behaviorList.get(i).getRFreq();
cumProbList.add(curCumProb);
}
if (cumProbList.isEmpty() || (cumProbList.get(cumProbList.size() - 1) == 0)) {
logger.fatalError("No behavior matches");
throw new BehaviorException("no behavior matches");
}
// System.out.print("Choosing behavior ... -> cumProbList " + cumProbList.toString() + " ->");
double rndVal = rand.nextDouble() * (cumProbList.get(cumProbList.size() - 1));
// System.out.print("rnd: " + rndVal + " ");
BehaviorMixEntry behavior = this.behaviorList.get(0);
for (int i = 0; i < cumProbList.size() - 1; i++) {
if (rndVal < cumProbList.get(i)) break;
behavior = this.behaviorList.get(i + 1);
}
// System.out.println("-> Behavior: " + behavior.getBName());
return behavior;
}
