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package hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner.dse
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.partialinterpretation.PartialInterpretation
import hu.bme.mit.inf.dslreasoner.viatrasolver.partialinterpretationlanguage.partialinterpretation.PrimitiveElement
import hu.bme.mit.inf.dslreasoner.viatrasolver.reasoner.optimization.IThreeValuedObjective
import java.util.Comparator
import org.eclipse.viatra.dse.base.ThreadContext
import org.eclipse.viatra.dse.objectives.Comparators
import org.eclipse.xtend.lib.annotations.Accessors
class PunishSizeObjective implements IThreeValuedObjective {
@Accessors int level = 3
override createNew() {
this
}
override init(ThreadContext context) {
// Nothing to initialize.
}
override getComparator() {
Comparators.LOWER_IS_BETTER
}
override getFitness(ThreadContext threadContext) {
val model = threadContext.model
if (model instanceof PartialInterpretation) {
val size = model.newObjectCount
// println('''size=«size»''')
size as double
} else {
throw new IllegalArgumentException("notifier must be a PartialInterpretation")
}
}
override getBestPossibleFitness(ThreadContext threadContext) {
getFitness(threadContext)
}
override getWorstPossibleFitness(ThreadContext threadContext) {
val model = threadContext.model
if (model instanceof PartialInterpretation) {
(model.newObjectCount + model.maxNewElements) as double
} else {
throw new IllegalArgumentException("notifier must be a PartialInterpretation")
}
}
private def getNewObjectCount(PartialInterpretation interpretation) {
interpretation.newElements.reject[it instanceof PrimitiveElement].size
}
override getName() {
typeof(PunishSizeObjective).name
}
override isHardObjective() {
false
}
override satisifiesHardObjective(Double fitness) {
true
}
override setComparator(Comparator<Double> comparator) {
throw new UnsupportedOperationException("Model generation objective comparator cannot be set.")
}
}
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