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package tools.refinery.store.query.viatra.internal.update;
import org.eclipse.viatra.query.runtime.matchers.context.IInputKey;
import org.eclipse.viatra.query.runtime.matchers.context.IQueryRuntimeContextListener;
import org.eclipse.viatra.query.runtime.matchers.tuple.ITuple;
import tools.refinery.store.model.Model;
import tools.refinery.store.query.view.AnyRelationView;
import tools.refinery.store.query.view.RelationView;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
public class ModelUpdateListener {
private final Map<AnyRelationView, RelationViewUpdateListener<?>> relationViewUpdateListeners;
public ModelUpdateListener(Model model, Collection<AnyRelationView> relationViews) {
relationViewUpdateListeners = new HashMap<>(relationViews.size());
for (var relationView : relationViews) {
registerView(model, (RelationView<?>) relationView);
}
}
private <T> void registerView(Model model, RelationView<T> relationView) {
var listener = RelationViewUpdateListener.of(relationView);
var interpretation = model.getInterpretation(relationView.getSymbol());
interpretation.addListener(listener, true);
relationViewUpdateListeners.put(relationView, listener);
}
public boolean containsRelationView(AnyRelationView relationView) {
return relationViewUpdateListeners.containsKey(relationView);
}
public void addListener(IInputKey key, AnyRelationView relationView, ITuple seed,
IQueryRuntimeContextListener listener) {
var relationViewUpdateListener = relationViewUpdateListeners.get(relationView);
relationViewUpdateListener.addFilter(key, seed, listener);
}
public void removeListener(IInputKey key, AnyRelationView relationView, ITuple seed,
IQueryRuntimeContextListener listener) {
var relationViewUpdateListener = relationViewUpdateListeners.get(relationView);
relationViewUpdateListener.removeFilter(key, seed, listener);
}
}
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