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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.dse.propagation.PropagationBuilder;
import tools.refinery.store.dse.transition.Rule;
import tools.refinery.store.model.ModelStoreBuilder;
import tools.refinery.store.model.ModelStoreConfiguration;
import tools.refinery.store.query.dnf.Query;
import tools.refinery.store.query.dnf.RelationalQuery;
import tools.refinery.store.query.view.ForbiddenView;
import tools.refinery.store.reasoning.lifting.DnfLifter;
import tools.refinery.store.reasoning.literal.Concreteness;
import tools.refinery.store.reasoning.literal.Modality;
import tools.refinery.store.reasoning.representation.PartialRelation;
import tools.refinery.store.reasoning.translator.PartialRelationTranslator;
import tools.refinery.store.reasoning.translator.TranslationException;
import tools.refinery.store.reasoning.translator.multiplicity.InvalidMultiplicityErrorTranslator;
import tools.refinery.store.reasoning.translator.multiplicity.Multiplicity;
import tools.refinery.store.representation.Symbol;
import tools.refinery.store.representation.TruthValue;
import static tools.refinery.store.query.literal.Literals.not;
import static tools.refinery.store.reasoning.actions.PartialActionLiterals.add;
import static tools.refinery.store.reasoning.actions.PartialActionLiterals.merge;
import static tools.refinery.store.reasoning.literal.PartialLiterals.*;
import static tools.refinery.store.reasoning.translator.multiobject.MultiObjectTranslator.MULTI_VIEW;
public class DirectedCrossReferenceTranslator implements ModelStoreConfiguration {
private final PartialRelation linkType;
private final DirectedCrossReferenceInfo info;
private final Symbol<TruthValue> symbol;
public DirectedCrossReferenceTranslator(PartialRelation linkType, DirectedCrossReferenceInfo info) {
this.linkType = linkType;
this.info = info;
symbol = Symbol.of(linkType.name(), 2, TruthValue.class, info.defaultValue());
}
@Override
public void apply(ModelStoreBuilder storeBuilder) {
var name = linkType.name();
var sourceType = info.sourceType();
var targetType = info.targetType();
var mayNewSource = createMayHelper(sourceType, info.sourceMultiplicity(), false);
var mayNewTarget = createMayHelper(targetType, info.targetMultiplicity(), true);
var mayName = DnfLifter.decorateName(name, Modality.MAY, Concreteness.PARTIAL);
var defaultValue = info.defaultValue();
if (defaultValue.must()) {
throw new TranslationException(linkType, "Unsupported default value %s for directed cross references %s"
.formatted(defaultValue, linkType));
}
var translator = PartialRelationTranslator.of(linkType);
translator.symbol(symbol);
if (defaultValue.may()) {
var forbiddenView = new ForbiddenView(symbol);
translator.may(Query.of(mayName, (builder, source, target) -> {
builder.clause(
mayNewSource.call(source),
mayNewTarget.call(target),
not(forbiddenView.call(source, target))
);
if (info.isConstrained()) {
// Violation of monotonicity:
// Edges violating upper multiplicity will not be marked as {@code ERROR}, but the
// corresponding error pattern will already mark the node as invalid.
builder.clause(
must(linkType.call(source, target)),
not(forbiddenView.call(source, target)),
may(sourceType.call(source)),
may(targetType.call(target))
);
}
}));
} else {
var propagationBuilder = storeBuilder.getAdapter(PropagationBuilder.class);
propagationBuilder.rule(Rule.of(name + "#invalidLink", (builder, p1, p2) -> {
builder.clause(
may(linkType.call(p1, p2)),
not(may(sourceType.call(p1)))
);
builder.clause(
may(linkType.call(p1, p2)),
not(may(targetType.call(p2)))
);
if (info.isConstrained()) {
builder.clause(
may(linkType.call(p1, p2)),
not(must(linkType.call(p1, p2))),
not(mayNewSource.call(p1))
);
builder.clause(
may(linkType.call(p1, p2)),
not(must(linkType.call(p1, p2))),
not(mayNewTarget.call(p2))
);
}
builder.action(
merge(linkType, TruthValue.FALSE, p1, p2)
);
}));
}
translator.refiner(DirectedCrossReferenceRefiner.of(symbol, sourceType, targetType));
translator.initializer(new DirectedCrossReferenceInitializer(linkType, sourceType, targetType, symbol));
translator.decision(Rule.of(linkType.name(), (builder, source, target) -> builder
.clause(
may(linkType.call(source, target)),
not(candidateMust(linkType.call(source, target))),
not(MULTI_VIEW.call(source)),
not(MULTI_VIEW.call(target))
)
.action(
add(linkType, source, target)
)));
storeBuilder.with(translator);
storeBuilder.with(new InvalidMultiplicityErrorTranslator(sourceType, linkType, false,
info.sourceMultiplicity()));
storeBuilder.with(new InvalidMultiplicityErrorTranslator(targetType, linkType, true,
info.targetMultiplicity()));
}
private RelationalQuery createMayHelper(PartialRelation type, Multiplicity multiplicity, boolean inverse) {
return CrossReferenceUtils.createMayHelper(linkType, type, multiplicity, inverse);
}
}
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