protected void runSolverPhases() {
Iterator<SolverPhase> it = solverPhaseList.iterator();
while (!termination.isSolverTerminated(solverScope) && it.hasNext()) {
SolverPhase solverPhase = it.next();
solverPhase.solve(solverScope);
if (it.hasNext()) {
solverScope.setWorkingSolutionFromBestSolution();
}
}
// TODO support doing round-robin of phases (only non-construction heuristics)
}
public void solvingEnded(DefaultSolverScope solverScope) {
for (SolverPhase solverPhase : solverPhaseList) {
solverPhase.solvingEnded(solverScope);
}
bestSolutionRecaller.solvingEnded(solverScope);
long timeMillisSpend = solverScope.calculateTimeMillisSpend();
if (timeMillisSpend == 0L) {
// Avoid divide by zero exception on a fast CPU
timeMillisSpend = 1L;
}
long averageCalculateCountPerSecond = solverScope.getCalculateCount() * 1000L / timeMillisSpend;
logger.info(
"Solving ended: time spend ({}), best score ({}), average calculate count per second ({}).",
timeMillisSpend,
solverScope.getBestScoreWithUninitializedPrefix(),
averageCalculateCountPerSecond);
}
public void solvingStarted(DefaultSolverScope solverScope) {
if (solverScope.getBestSolution() == null) {
throw new IllegalStateException(
"The planningProblem must not be null." + " Use Solver.setPlanningProblem(Solution).");
}
solverScope.setStartingSystemTimeMillis(System.currentTimeMillis());
solverScope.setScoreDirector(scoreDirectorFactory.buildScoreDirector());
solverScope.setWorkingRandom(randomFactory.createRandom());
solverScope.setWorkingSolutionFromBestSolution();
bestSolutionRecaller.solvingStarted(solverScope);
for (SolverPhase solverPhase : solverPhaseList) {
solverPhase.solvingStarted(solverScope);
}
logger.info(
"Solving started: time spend ({}), score ({}), new best score ({}), random ({}).",
solverScope.calculateTimeMillisSpend(),
solverScope.getStartingInitializedScore(),
solverScope.getBestScore(),
(randomFactory != null ? randomFactory : "not fixed"));
}
public void removeSolverPhaseLifecycleListener(
SolverPhaseLifecycleListener solverPhaseLifecycleListener) {
for (SolverPhase solverPhase : solverPhaseList) {
solverPhase.addSolverPhaseLifecycleListener(solverPhaseLifecycleListener);
}
}