/**
* Both arguments and the return value are stored by the simulator.
*
* @param plus value loaded from XML
* @param minus value loaded from XML
*/
@Override
public synchronized LearnerGraph init(
Collection<List<Label>> plus, Collection<List<Label>> minus) {
LearnerGraph result = null, copyOfResult = null;
// First, we call the expected method
if (Thread.currentThread() == secondThread) {
result = whatToCompareWith.init(plus, minus);
copyOfResult = new LearnerGraph(result, result.config);
iGraph = copyOfResult;
} else {
result = decoratedLearner.init(plus, minus);
copyOfResult = new LearnerGraph(result, result.config);
}
syncOnCallOf(KIND_OF_METHOD.M_INIT);
if (Thread.currentThread() != secondThread) { // second thread, checking.
checkGraphEquality(iGraph, copyOfResult);
iGraph = null; // reset stored data
}
syncOnCallOf(KIND_OF_METHOD.M_METHODEXIT); // aims to stop one of the threads running fast
// from the first checkCall and overwriting the stored value before the other
// thread had a chance to use it in a comparison.
return result;
}
