public Solver buildSolver() {
DefaultSolver solver = new DefaultSolver();
BasicPlumbingTermination basicPlumbingTermination = new BasicPlumbingTermination();
solver.setBasicPlumbingTermination(basicPlumbingTermination);
EnvironmentMode environmentMode =
this.environmentMode == null ? EnvironmentMode.REPRODUCIBLE : this.environmentMode;
if (randomSeed != null) {
solver.setRandomSeed(randomSeed);
} else {
if (environmentMode != EnvironmentMode.PRODUCTION) {
solver.setRandomSeed(DEFAULT_RANDOM_SEED);
}
}
SolutionDescriptor solutionDescriptor = buildSolutionDescriptor();
ScoreDirectorFactoryConfig scoreDirectorFactoryConfig_ =
scoreDirectorFactoryConfig == null
? new ScoreDirectorFactoryConfig()
: scoreDirectorFactoryConfig;
ScoreDirectorFactory scoreDirectorFactory =
scoreDirectorFactoryConfig_.buildScoreDirectorFactory(environmentMode, solutionDescriptor);
solver.setScoreDirectorFactory(scoreDirectorFactory);
ScoreDefinition scoreDefinition = scoreDirectorFactory.getScoreDefinition();
TerminationConfig terminationConfig_ =
terminationConfig == null ? new TerminationConfig() : terminationConfig;
Termination termination =
terminationConfig_.buildTermination(scoreDefinition, basicPlumbingTermination);
solver.setTermination(termination);
BestSolutionRecaller bestSolutionRecaller = buildBestSolutionRecaller(environmentMode);
solver.setBestSolutionRecaller(bestSolutionRecaller);
if (CollectionUtils.isEmpty(solverPhaseConfigList)) {
throw new IllegalArgumentException(
"Configure at least 1 phase (for example <localSearch>) in the solver configuration.");
}
List<SolverPhase> solverPhaseList = new ArrayList<SolverPhase>(solverPhaseConfigList.size());
int phaseIndex = 0;
for (SolverPhaseConfig solverPhaseConfig : solverPhaseConfigList) {
SolverPhase solverPhase =
solverPhaseConfig.buildSolverPhase(
phaseIndex, environmentMode, solutionDescriptor, scoreDefinition, termination);
((AbstractSolverPhase) solverPhase).setBestSolutionRecaller(bestSolutionRecaller);
solverPhaseList.add(solverPhase);
phaseIndex++;
}
solver.setSolverPhaseList(solverPhaseList);
return solver;
}
public void inherit(LocalSearchSolverPhaseConfig inheritedConfig) {
super.inherit(inheritedConfig);
moveSelectorConfigList =
ConfigUtils.inheritMergeableListProperty(
moveSelectorConfigList, inheritedConfig.getMoveSelectorConfigList());
if (acceptorConfig == null) {
acceptorConfig = inheritedConfig.getAcceptorConfig();
} else if (inheritedConfig.getAcceptorConfig() != null) {
acceptorConfig.inherit(inheritedConfig.getAcceptorConfig());
}
if (foragerConfig == null) {
foragerConfig = inheritedConfig.getForagerConfig();
} else if (inheritedConfig.getForagerConfig() != null) {
foragerConfig.inherit(inheritedConfig.getForagerConfig());
}
}