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/*
* SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.store.reasoning.translator.crossreference;
import tools.refinery.store.reasoning.ReasoningAdapter;
import tools.refinery.store.reasoning.refinement.ConcreteSymbolRefiner;
import tools.refinery.store.reasoning.refinement.PartialInterpretationRefiner;
import tools.refinery.store.reasoning.representation.PartialRelation;
import tools.refinery.store.reasoning.representation.PartialSymbol;
import tools.refinery.store.representation.Symbol;
import tools.refinery.store.representation.TruthValue;
import tools.refinery.store.tuple.Tuple;
class DirectedCrossReferenceRefiner extends ConcreteSymbolRefiner<TruthValue, Boolean> {
private final PartialRelation targetType;
private final PartialInterpretationRefiner<TruthValue, Boolean> sourceRefiner;
private PartialInterpretationRefiner<TruthValue, Boolean> targetRefiner;
public DirectedCrossReferenceRefiner(ReasoningAdapter adapter, PartialSymbol<TruthValue, Boolean> partialSymbol,
Symbol<TruthValue> concreteSymbol, PartialRelation sourceType,
PartialRelation targetType) {
super(adapter, partialSymbol, concreteSymbol);
this.targetType = targetType;
// Source is always a class, so we can rely on the fact that it is always constructed before this refiner.
sourceRefiner = adapter.getRefiner(sourceType);
}
@Override
public boolean merge(Tuple key, TruthValue value) {
if (!super.merge(key, value)) {
return false;
}
if (value.must()) {
if (targetRefiner == null) {
// Access the target refinery lazily, since it may be constructed after this refiner.
targetRefiner = getAdapter().getRefiner(targetType);
}
return sourceRefiner.merge(Tuple.of(key.get(0)), TruthValue.TRUE) &&
targetRefiner.merge(Tuple.of(key.get(1)), TruthValue.TRUE);
}
return true;
}
public static Factory<TruthValue, Boolean> of(Symbol<TruthValue> concreteSymbol, PartialRelation sourceType,
PartialRelation targetType) {
return (adapter, partialSymbol) -> new DirectedCrossReferenceRefiner(adapter, partialSymbol, concreteSymbol,
sourceType, targetType);
}
}
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