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/*******************************************************************************
* Copyright (c) 2015, 2016 Willink Transformations and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* E.D.Willink - Initial API and implementation
*******************************************************************************/
package org.eclipse.qvtd.compiler.internal.qvtp2qvts;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.ocl.pivot.CollectionType;
import org.eclipse.ocl.pivot.CompleteClass;
import org.eclipse.ocl.pivot.Property;
import org.eclipse.ocl.pivot.StandardLibrary;
import org.eclipse.ocl.pivot.Type;
import org.eclipse.ocl.pivot.utilities.ClassUtil;
import org.eclipse.ocl.pivot.utilities.EnvironmentFactory;
import org.eclipse.ocl.pivot.utilities.FeatureFilter;
import org.eclipse.qvtd.pivot.qvtbase.TypedModel;
import org.eclipse.qvtd.pivot.qvtcore.Mapping;
import org.eclipse.qvtd.pivot.qvtcore.analysis.DomainUsage;
import org.eclipse.qvtd.pivot.schedule.ClassDatum;
import org.eclipse.qvtd.pivot.schedule.MappingAction;
import com.google.common.collect.Iterables;
public class ClassDatumAnalysis
{
protected static final class MultiOppositeComparator implements Comparator<@NonNull Property>
{
public static final Comparator<@NonNull ? super Property> INSTANCE = new MultiOppositeComparator();
@Override
public int compare(@NonNull Property o1, @NonNull Property o2) {
boolean c1 = o1.isIsComposite();
boolean c2 = o1.isIsComposite();
if (c1 != c2) {
return Boolean.compare(c1, c2);
}
else {
return ClassUtil.safeCompareTo(o1.getName(), o2.getName());
}
}
}
protected final @NonNull SchedulerConstants schedulerConstants;
protected final @NonNull ClassDatum classDatum;
protected final @NonNull DomainUsage domainUsage;
/**
* The non-to-one properties that may terminate in a given ClassDatum.
*/
private /* @LazyNonNull*/ List<@NonNull Property> multiOpposites = null;
private final @NonNull Map<@NonNull Region, @NonNull List<@NonNull Node>> introducer2assignmentNodes = new HashMap<>();
private final @NonNull Map<@NonNull MappingRegion, @NonNull List<@NonNull Node>> consumer2predicateNodes = new HashMap<>();
private final @NonNull Map<@NonNull Region, @NonNull List<@NonNull Node>> producer2assignmentNodes = new HashMap<>();
private /*@LazyNonNull*/ List<@NonNull ClassDatumAnalysis> superClassDatumAnalyses = null;
private /*@LazyNonNull*/ List<@NonNull Mapping> producedBy = null;
private /*@LazyNonNull*/ List<@NonNull Mapping> requiredBy = null;
public ClassDatumAnalysis(@NonNull SchedulerConstants schedulerConstants, @NonNull ClassDatum classDatum) {
this.schedulerConstants = schedulerConstants;
this.classDatum = classDatum;
this.domainUsage = schedulerConstants.getDomainUsage(ClassUtil.nonNullState(classDatum.getTypedModel()));
}
public void addConsumption(@NonNull MappingRegion consumer, @NonNull Node consumingNode) {
List<@NonNull Node> predicateNodes = consumer2predicateNodes.get(consumer);
if (predicateNodes == null) {
predicateNodes = new ArrayList<@NonNull Node>();
consumer2predicateNodes.put(consumer, predicateNodes);
}
if (!predicateNodes.contains(consumingNode)) { // predicate may consume multiple producers
predicateNodes.add(consumingNode);
}
}
public void addIntroduction(@NonNull Region introducer, @NonNull Node introducingNode) {
List<@NonNull Node> assignmentNodes = introducer2assignmentNodes.get(introducer);
if (assignmentNodes == null) {
assignmentNodes = new ArrayList<@NonNull Node>();
introducer2assignmentNodes.put(introducer, assignmentNodes);
}
assert !assignmentNodes.contains(introducingNode);
assignmentNodes.add(introducingNode);
}
public void addProduction(@NonNull MappingRegion producer, @NonNull Node producingNode) {
List<@NonNull Node> assignmentNodes = producer2assignmentNodes.get(producer);
if (assignmentNodes == null) {
assignmentNodes = new ArrayList<@NonNull Node>();
producer2assignmentNodes.put(producer, assignmentNodes);
}
if (!assignmentNodes.contains(producingNode)) { // assignment may be recursive
assignmentNodes.add(producingNode);
}
}
public @NonNull ClassDatum getClassDatum() {
return classDatum;
}
public @NonNull CompleteClass getCompleteClass() {
CompleteClass completeClass = classDatum.getCompleteClass();
assert completeClass != null;
return completeClass;
}
public @NonNull Iterable<Node> getConsumingNodes() {
return Iterables.concat(consumer2predicateNodes.values());
}
public @NonNull Set<@NonNull MappingRegion> getConsumingRegions() {
return consumer2predicateNodes.keySet();
}
public @NonNull DomainUsage getDomainUsage() {
return domainUsage;
}
public @Nullable List<Property> getMultiOpposites() {
List<@NonNull Property> multiOpposites2 = multiOpposites;
if (multiOpposites2 == null) {
EnvironmentFactory environmentFactory = schedulerConstants.getEnvironmentFactory();
CompleteClass completeClass = classDatum.getCompleteClass();
assert completeClass != null;
for (@NonNull Property property : completeClass.getProperties((FeatureFilter)null)) {
Property oppositeProperty = property.getOpposite();
if ((oppositeProperty != null) && oppositeProperty.isIsMany() && !oppositeProperty.isIsDerived()) {
Type childrenType = oppositeProperty.getType();
if (childrenType instanceof CollectionType) {
Type childType = ((CollectionType)childrenType).getElementType();
assert childType != null;
StandardLibrary standardLibrary = environmentFactory.getStandardLibrary();
if (completeClass.getPrimaryClass().conformsTo(standardLibrary, childType)) { // FIXME bi-conforming types
if (multiOpposites2 == null) {
multiOpposites = multiOpposites2 = new ArrayList<@NonNull Property>();
}
multiOpposites2.add(oppositeProperty);
}
}
}
}
if (multiOpposites2 != null) {
Collections.sort(multiOpposites2, MultiOppositeComparator.INSTANCE); // Container first, deterministic order by name later
}
}
return multiOpposites2;
}
public @NonNull Iterable<@NonNull Mapping> getProducedBy() {
List<@NonNull Mapping> producedBy2 = producedBy;
if (producedBy2 == null) {
producedBy2 = producedBy = new ArrayList<>();
for (@NonNull MappingAction producingAction : ClassUtil.nullFree(classDatum.getProducedBy())) {
Mapping mapping = producingAction.getMapping();
assert mapping != null;
producedBy2.add(mapping);
}
}
return producedBy2;
}
// @SuppressWarnings("null")
// public @NonNull Collection<MappingRegion> getProducers() {
// return producer2assignmentNodes.keySet();
// }
public @NonNull Iterable<Node> getProducingNodes() {
return Iterables.concat(consumer2predicateNodes.values());
}
public @NonNull Set<Region> getProducingRegions() {
return producer2assignmentNodes.keySet();
}
public @NonNull Iterable<@NonNull Mapping> getRequiredBy() {
List<@NonNull Mapping> requiredBy2 = requiredBy;
if (requiredBy2 == null) {
requiredBy2 = requiredBy = new ArrayList<>();
for (@NonNull MappingAction consumingAction : ClassUtil.nullFree(classDatum.getRequiredBy())) {
Mapping mapping = consumingAction.getMapping();
assert mapping != null;
requiredBy2.add(mapping);
}
}
return requiredBy2;
}
public @Nullable Node getSingleProducer() {
Iterator<List<Node>> values = producer2assignmentNodes.values().iterator();
if (!values.hasNext()) {
return null;
}
List<Node> firstProductions = values.next();
return !values.hasNext() && (firstProductions.size() == 1) ? firstProductions.get(0) : null;
}
public @NonNull Iterable<@NonNull ClassDatumAnalysis> getSuperClassDatumAnalyses() {
List<@NonNull ClassDatumAnalysis> superClassDatumAnalyses2 = superClassDatumAnalyses;
if (superClassDatumAnalyses2 == null) {
superClassDatumAnalyses = superClassDatumAnalyses2 = new ArrayList<@NonNull ClassDatumAnalysis>();
CompleteClass completeClass = getCompleteClass();
for (@NonNull CompleteClass completeSuperClass : completeClass.getSuperCompleteClasses()) {
superClassDatumAnalyses2.add(schedulerConstants.getClassDatumAnalysis(completeSuperClass.getPrimaryClass(), ClassUtil.nonNullState(domainUsage.getTypedModel(completeClass))));
}
}
return superClassDatumAnalyses2;
}
public @NonNull TypedModel getTypedModel() {
return ClassUtil.nonNullState(classDatum.getTypedModel());
}
public boolean hasNoProducers() {
return producer2assignmentNodes.size() == 0;
}
@Override
public String toString() {
return classDatum.toString();
}
}
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