* attempt at reference caching, commented out.. (3c9550d6) · Commits · MTS / TTCN-3 / T3Q

de.ugoe.cs.swe.TTCN3/src/de/ugoe/cs/swe/common/TTCN3ReferenceHelper.java

+64 −1

Original line number	Diff line number	Diff line
		package de.ugoe.cs.swe.common;

		import java.util.Collection;
		import java.util.Collections;
		import java.util.HashMap;
		import java.util.Map;
		import java.util.Queue;
		import java.util.Set;
		@@ -10,8 +12,11 @@ import org.eclipse.emf.ecore.EReference;
		import org.eclipse.emf.ecore.EStructuralFeature.Setting;
		import org.eclipse.emf.ecore.util.EcoreUtil;
		import org.eclipse.emf.ecore.util.InternalEList;
		import org.eclipse.xtext.EcoreUtil2;
		import org.eclipse.xtext.EcoreUtil2.ElementReferenceAcceptor;

		import com.google.common.collect.Lists;
		import com.google.common.collect.Maps;

		import de.ugoe.cs.swe.tTCN3.Assignment;
		import de.ugoe.cs.swe.tTCN3.Enumeration;
		@@ -20,6 +25,7 @@ import de.ugoe.cs.swe.tTCN3.FormalValuePar;
		import de.ugoe.cs.swe.tTCN3.Head;

		public class TTCN3ReferenceHelper {
		static Map<EObject, HashMap<EObject, Boolean>> isReferencedCache = Collections.synchronizedMap(Maps.<EObject, HashMap<EObject, Boolean>> newHashMap());

		/**
		* Own implementation of org.eclipse.xtext.EcoreUtil2::findCrossReferences
		@@ -107,6 +113,44 @@ public class TTCN3ReferenceHelper {
		@SuppressWarnings("unchecked")
		public static boolean isReferenced2(EObject rootElement, Set<? extends EObject> targets, boolean ignoreAssignment) {
		boolean found = false;
		// HashMap<EObject, Boolean> cached = isReferencedCache.get(rootElement);
		// if (cached != null) {
		// for (EObject t : targets) {
		// if (cached.containsKey(t)) {
		// return cached.get(t);
		// }
		// }
		// } else {
		// cached = new HashMap<>();
		// synchronized (isReferencedCache) {
		// isReferencedCache.put(rootElement, cached);
		// }
		// }
		// EcoreUtil2.findCrossReferences(rootElement, targets, new ElementReferenceAcceptor() {
		//
		// @Override
		// public void accept(EObject referrer, EObject referenced, EReference reference, int index) {
		// // TODO Auto-generated method stub
		// synchronized (isReferencedCache) {
		// boolean confirmed = true;
		// if (ignoreAssignment) {
		// confirmed = checkAssignment(referrer, referenced);
		// }
		// if (referenced instanceof Enumeration) {
		// confirmed = false;
		// }
		// isReferencedCache.get(rootElement).put(referenced, confirmed);
		// }
		//// System.out.println(referrer +"->"+referenced+" via "+reference);
		//
		// }
		// });
		// for (EObject t : targets) {
		// if (cached.containsKey(t)) {
		// return cached.get(t);
		// }
		// }


		for(EReference ref: rootElement.eClass().getEAllReferences()) {

		@@ -135,6 +179,9 @@ public class TTCN3ReferenceHelper {
		for(int i=0; i< values.size(); ++i) {
		EObject refElement = values.get(i);
		if(targets.contains(refElement)) {
		// synchronized (isReferencedCache) {
		// cached.put(refElement, true);
		// }
		return true;
		}
		}
		@@ -142,17 +189,33 @@ public class TTCN3ReferenceHelper {
		EObject refElement = (EObject) value;
		if(targets.contains(refElement)) {
		if (refElement instanceof Enumeration) {
		// synchronized (isReferencedCache) {
		// cached.put(refElement, false);
		// }
		return false;
		}
		//TODO: simplify
		if (ignoreAssignment) {
		return checkAssignment(rootElement, refElement);
		}
		boolean confirmed = checkAssignment(rootElement, refElement);
		// synchronized (isReferencedCache) {
		// cached.put(refElement, confirmed);
		// }
		return confirmed;
		}
		// synchronized (isReferencedCache) {
		// cached.put(refElement, true);
		// }
		return true;
		}
		}
		}
		}
		}
		// if (!found) {
		// for (EObject t : targets) {
		// isReferencedCache.get(rootElement).put(t, found);
		// }
		// }
		return found;
		}