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/*******************************************************************************
* Copyright (c) 2016, 2017 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.pivot.qvtrelation.utilities;
import java.util.List;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.ocl.pivot.CollectionType;
import org.eclipse.ocl.pivot.OCLExpression;
import org.eclipse.ocl.pivot.Property;
import org.eclipse.ocl.pivot.StandardLibrary;
import org.eclipse.ocl.pivot.Type;
import org.eclipse.ocl.pivot.Variable;
import org.eclipse.ocl.pivot.utilities.EnvironmentFactory;
import org.eclipse.ocl.pivot.utilities.PivotUtil;
import org.eclipse.qvtd.pivot.qvtbase.Pattern;
import org.eclipse.qvtd.pivot.qvtbase.QVTbaseFactory;
import org.eclipse.qvtd.pivot.qvtbase.TypedModel;
import org.eclipse.qvtd.pivot.qvtbase.utilities.QVTbaseHelper;
import org.eclipse.qvtd.pivot.qvtbase.utilities.TraceHelper;
import org.eclipse.qvtd.pivot.qvtrelation.DomainPattern;
import org.eclipse.qvtd.pivot.qvtrelation.Key;
import org.eclipse.qvtd.pivot.qvtrelation.QVTrelationFactory;
import org.eclipse.qvtd.pivot.qvtrelation.Relation;
import org.eclipse.qvtd.pivot.qvtrelation.RelationCallExp;
import org.eclipse.qvtd.pivot.qvtrelation.RelationDomain;
import org.eclipse.qvtd.pivot.qvtrelation.RelationalTransformation;
import org.eclipse.qvtd.pivot.qvtrelation.SharedVariable;
import org.eclipse.qvtd.pivot.qvtrelation.TemplateVariable;
import org.eclipse.qvtd.pivot.qvttemplate.CollectionTemplateExp;
import org.eclipse.qvtd.pivot.qvttemplate.ObjectTemplateExp;
import org.eclipse.qvtd.pivot.qvttemplate.PropertyTemplateItem;
import org.eclipse.qvtd.pivot.qvttemplate.QVTtemplateFactory;
import org.eclipse.qvtd.pivot.qvttemplate.TemplateExp;
import com.google.common.collect.Iterables;
/**
* QVTrelationHelper provides helper routines to assist creation of QVTrelation model elements.
*/
public class QVTrelationHelper extends QVTbaseHelper
{
public QVTrelationHelper(@NonNull EnvironmentFactory environmentFactory) {
super(environmentFactory);
}
public void addWhenPredicate(@NonNull Relation qvtrRelation, @NonNull OCLExpression asExpression) {
Pattern asPattern = qvtrRelation.getWhen();
if (asPattern == null) {
asPattern = QVTbaseFactory.eINSTANCE.createPattern();
qvtrRelation.setWhen(asPattern);
}
asPattern.getPredicate().add(createPredicate(asExpression));
}
public void addWherePredicate(@NonNull Relation qvtrRelation, @NonNull OCLExpression asExpression) {
Pattern asPattern = qvtrRelation.getWhere();
if (asPattern == null) {
asPattern = QVTbaseFactory.eINSTANCE.createPattern();
qvtrRelation.setWhere(asPattern);
}
asPattern.getPredicate().add(createPredicate(asExpression));
}
/**
* Traverse the templateExp hierarchy assigning all special variables (_) to specialVariables allocating a distinctive name to each.
* Append special member variables to relationVariables as well.
*/
public void computeBoundVariables(@NonNull List<@NonNull Variable> boundVariables, @NonNull OCLExpression asExpression) {
if (asExpression instanceof ObjectTemplateExp) {
ObjectTemplateExp asObjectTemplateExp = (ObjectTemplateExp)asExpression;
Variable asBoundVariable = QVTrelationUtil.getBindsTo(asObjectTemplateExp);
if (!boundVariables.contains(asBoundVariable)) {
boundVariables.add(asBoundVariable);
}
for (@NonNull PropertyTemplateItem asPart : QVTrelationUtil.getOwnedParts(asObjectTemplateExp)) {
computeBoundVariables(boundVariables, QVTrelationUtil.getOwnedValue(asPart));
}
}
else if (asExpression instanceof CollectionTemplateExp) {
CollectionTemplateExp asCollectionTemplateExp = (CollectionTemplateExp)asExpression;
Variable asBoundVariable = QVTrelationUtil.getBindsTo(asCollectionTemplateExp);
if (!boundVariables.contains(asBoundVariable)) {
boundVariables.add(asBoundVariable);
}
for (@NonNull OCLExpression asMemberExpression : QVTrelationUtil.getOwnedMembers(asCollectionTemplateExp)) {
computeBoundVariables(boundVariables, asMemberExpression);
}
}
// else if (asExpression instanceof VariableExp) { // FIXME temporary test compatibility
// Variable asVariable = QVTrelationUtil.getReferredVariable((VariableExp)asExpression);
// if (!boundVariables.contains(asVariable)) {
// boundVariables.add(asVariable);
// }
// }
}
public @NonNull CollectionTemplateExp createCollectionTemplateExp(@NonNull TemplateVariable asTemplateVariable, org.eclipse.ocl.pivot.@NonNull Class asClass, boolean isRequired) {
CollectionTemplateExp asCollectionTemplateExp = QVTtemplateFactory.eINSTANCE.createCollectionTemplateExp();
// asObjectTemplateExp.setName(PivotUtil.getName(asTemplateVariable));
asCollectionTemplateExp.setType(asClass);
asCollectionTemplateExp.setReferredCollectionType((CollectionType)asClass);
asCollectionTemplateExp.setIsRequired(isRequired);
asCollectionTemplateExp.setBindsTo(asTemplateVariable);
return asCollectionTemplateExp;
}
public @NonNull DomainPattern createDomainPattern(@NonNull TemplateExp asTemplateExp) {
DomainPattern asDomainPattern = QVTrelationFactory.eINSTANCE.createDomainPattern();
asDomainPattern.setTemplateExpression(asTemplateExp);
return asDomainPattern;
}
public @NonNull Key createKey(org.eclipse.ocl.pivot.@NonNull Class asClass, @NonNull Iterable<@NonNull Property> asProperties) {
Key asKey = QVTrelationFactory.eINSTANCE.createKey();
asKey.setIdentifies(asClass);
Iterables.addAll(QVTrelationUtil.Internal.getOwnedPartsList(asKey), asProperties);
return asKey;
}
public @NonNull ObjectTemplateExp createObjectTemplateExp(@NonNull TemplateVariable asTemplateVariable, org.eclipse.ocl.pivot.@NonNull Class asClass, boolean isRequired) {
ObjectTemplateExp asObjectTemplateExp = QVTtemplateFactory.eINSTANCE.createObjectTemplateExp();
// asObjectTemplateExp.setName(PivotUtil.getName(asTemplateVariable));
setType(asObjectTemplateExp, asClass,isRequired);
asObjectTemplateExp.setReferredClass(asClass);
asObjectTemplateExp.setBindsTo(asTemplateVariable);
return asObjectTemplateExp;
}
public @NonNull PropertyTemplateItem createPropertyTemplateItem(@NonNull Property asProperty, @NonNull OCLExpression asExpression) {
PropertyTemplateItem asPropertyTemplateItem = QVTtemplateFactory.eINSTANCE.createPropertyTemplateItem();
boolean isOpposite = asProperty.isIsImplicit();
asPropertyTemplateItem.setIsOpposite(isOpposite);
asPropertyTemplateItem.setReferredProperty(isOpposite ? PivotUtil.getOpposite(asProperty) : asProperty);
asPropertyTemplateItem.setValue(asExpression);
return asPropertyTemplateItem;
}
public @NonNull Relation createRelation(@NonNull String name, @NonNull Iterable<@NonNull RelationDomain> asRelationDomains) {
Relation asRelation = QVTrelationFactory.eINSTANCE.createRelation();
asRelation.setName(name);
Iterables.addAll(QVTrelationUtil.Internal.getOwnedDomainsList(asRelation), asRelationDomains);
return asRelation;
}
public @NonNull RelationCallExp createRelationCallExp(@NonNull Relation asRelation, @NonNull List<? extends @NonNull OCLExpression> asArguments) {
RelationCallExp asRelationCallExp = QVTrelationFactory.eINSTANCE.createRelationCallExp();
asRelationCallExp.setReferredRelation(asRelation);
Iterables.addAll(QVTrelationUtil.Internal.getOwnedArgumentsList(asRelationCallExp), asArguments);
setType(asRelationCallExp, environmentFactory.getStandardLibrary().getBooleanType(), true);;
return asRelationCallExp;
}
public @NonNull RelationDomain createRelationDomain(@NonNull TypedModel asTypedModel) {
RelationDomain asRelationDomain = QVTrelationFactory.eINSTANCE.createRelationDomain();
asRelationDomain.setTypedModel(asTypedModel);
return asRelationDomain;
}
public @NonNull RelationalTransformation createRelationalTransformation(@NonNull String name, @NonNull Iterable<@NonNull TypedModel> asTypedModels) {
StandardLibrary standardLibrary = environmentFactory.getStandardLibrary();
RelationalTransformation asRelationalTransformation = QVTrelationFactory.eINSTANCE.createRelationalTransformation();
asRelationalTransformation.setName(name);
Iterables.addAll(QVTrelationUtil.Internal.getModelParameterList(asRelationalTransformation), asTypedModels);
asRelationalTransformation.getSuperClasses().add(standardLibrary.getOclElementType());
return asRelationalTransformation;
}
public @NonNull SharedVariable createSharedVariable(@Nullable String name, @NonNull Type asType, boolean isRequired, @Nullable OCLExpression asInitExpression) {
SharedVariable asVariable = QVTrelationFactory.eINSTANCE.createSharedVariable();
asVariable.setName(name);
asVariable.setIsImplicit(name == null);
setType(asVariable, asType, isRequired);
asVariable.setOwnedInit(asInitExpression);
return asVariable;
}
public @NonNull TemplateVariable createTemplateVariable(@NonNull String name, @NonNull Type asType, boolean isRequired, @Nullable OCLExpression asInitExpression) {
TemplateVariable asVariable = QVTrelationFactory.eINSTANCE.createTemplateVariable();
asVariable.setName(name);
setType(asVariable, asType, isRequired);
asVariable.setOwnedInit(asInitExpression);
return asVariable;
}
public @NonNull Variable createTraceClassVariable(@NonNull TraceHelper traceHelper) {
SharedVariable traceClassVariable;
traceClassVariable = QVTrelationFactory.eINSTANCE.createSharedVariable();
traceClassVariable.setName(QVTrelationUtil.TRACE_CLASS_NAME);
traceClassVariable.setIsImplicit(true);
setType(traceClassVariable, traceHelper.getTraceElementClass(), true); // Use an ancestral QVTTrace type since derived type not yet synthesized
traceClassVariable.setOwnedInit(null);
return traceClassVariable;
}
public @NonNull TypedModel createTraceTypedModel() {
TypedModel asTypedModel = QVTbaseFactory.eINSTANCE.createTypedModel();
asTypedModel.setName(QVTrelationUtil.TRACE_TYPED_MODEL_NAME);
asTypedModel.setIsTrace(true);
return asTypedModel;
}
}
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