public void decideNextStep(LocalSearchStepScope localSearchStepScope) {
WorkingMemory workingMemory = localSearchStepScope.getWorkingMemory();
Iterator<Move> moveIterator = selector.moveIterator(localSearchStepScope);
while (moveIterator.hasNext()) {
Move move = moveIterator.next();
MoveScope moveScope = new MoveScope(localSearchStepScope);
moveScope.setMove(move);
// Filter out not doable moves
if (move.isMoveDoable(workingMemory)) {
doMove(moveScope);
if (forager.isQuitEarly()) {
break;
}
} else {
logger.debug(" Ignoring not doable move ({}).", move);
}
}
MoveScope pickedMoveScope = forager.pickMove(localSearchStepScope);
if (pickedMoveScope != null) {
Move step = pickedMoveScope.getMove();
localSearchStepScope.setStep(step);
if (logger.isInfoEnabled()) {
localSearchStepScope.setStepString(step.toString());
}
localSearchStepScope.setUndoStep(step.createUndoMove(workingMemory));
localSearchStepScope.setScore(pickedMoveScope.getScore());
}
}
public void beforeDeciding(LocalSearchStepScope localSearchStepScope) {
deciderScoreComparatorFactory.beforeDeciding(localSearchStepScope);
localSearchStepScope.setDeciderScoreComparator(
deciderScoreComparatorFactory.createDeciderScoreComparator());
selector.beforeDeciding(localSearchStepScope);
acceptor.beforeDeciding(localSearchStepScope);
forager.beforeDeciding(localSearchStepScope);
}
private void processMove(MoveScope moveScope) {
Score score =
moveScope
.getLocalSearchStepScope()
.getLocalSearchSolverPhaseScope()
.calculateScoreFromWorkingMemory();
if (assertMoveScoreIsUncorrupted) {
moveScope
.getLocalSearchStepScope()
.getLocalSearchSolverPhaseScope()
.assertWorkingScore(score);
}
moveScope.setScore(score);
double acceptChance = acceptor.calculateAcceptChance(moveScope);
moveScope.setAcceptChance(acceptChance);
forager.addMove(moveScope);
}
public void phaseStarted(LocalSearchSolverPhaseScope localSearchSolverPhaseScope) {
deciderScoreComparatorFactory.phaseStarted(localSearchSolverPhaseScope);
selector.phaseStarted(localSearchSolverPhaseScope);
acceptor.phaseStarted(localSearchSolverPhaseScope);
forager.phaseStarted(localSearchSolverPhaseScope);
}
public void stepTaken(LocalSearchStepScope localSearchStepScope) {
deciderScoreComparatorFactory.stepTaken(localSearchStepScope);
selector.stepTaken(localSearchStepScope);
acceptor.stepTaken(localSearchStepScope);
forager.stepTaken(localSearchStepScope);
}
