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/**
* Copyright (c) 2012 Mia-Software.
*
* 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:
* Alban Ménager (Soft-Maint) - Bug 387470 - [EFacet][Custom] Editors
* Grégoire Dupé (Mia-Software) - Bug 387470 - [EFacet][Custom] Editors
*/
package org.eclipse.papyrus.emf.facet.query.ocl.core.internal.evaluator;
import java.util.List;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.ocl.ParserException;
import org.eclipse.ocl.expressions.OCLExpression;
import org.eclipse.papyrus.emf.facet.efacet.core.IFacetManager;
import org.eclipse.papyrus.emf.facet.efacet.core.exception.DerivedTypedElementException;
import org.eclipse.papyrus.emf.facet.efacet.core.query.IQueryImplementation;
import org.eclipse.papyrus.emf.facet.efacet.metamodel.v0_2_0.efacet.DerivedTypedElement;
import org.eclipse.papyrus.emf.facet.efacet.metamodel.v0_2_0.efacet.ParameterValue;
import org.eclipse.papyrus.emf.facet.efacet.metamodel.v0_2_0.efacet.extensible.Query;
import org.eclipse.papyrus.emf.facet.query.ocl.core.util.OclQueryUtil;
import org.eclipse.papyrus.emf.facet.query.ocl.metamodel.oclquery.OclQuery;
/**
* Concrete implementation of {@link IQueryImplementation} for the OCL query.
*/
public class OclQueryImplementation implements IQueryImplementation {
protected OCLExpression<EClassifier> oclExpression;
@Override
public void setValue(final Query query, final DerivedTypedElement feature, final EObject source, final List<ParameterValue> parameterValues, final Object newValue) throws DerivedTypedElementException {
throw new UnsupportedOperationException("not implemented yet"); //$NON-NLS-1$
}
@Override
public boolean isCheckResultType() {
return true;
}
@Override
public Object getValue(final Query query, final DerivedTypedElement feature, final EObject source, final List<ParameterValue> parameterValues, final IFacetManager facetManager) throws DerivedTypedElementException {
if (!(query instanceof OclQuery)) {
throw new IllegalArgumentException("The given DerivedTypedElement does not have a OclQuery"); //$NON-NLS-1$
}
try {
return executeOclQuery(source, parameterValues, (OclQuery) query);
} catch (Exception e) {
throw new DerivedTypedElementException(e);
}
}
protected Object executeOclQuery(final EObject source, final List<ParameterValue> parameterValues, final OclQuery oclQuery) throws ParserException {
Object evaluateQuery = null;
final EClassifier context = oclQuery.getContext();
if (oclExpression == null) {
String stringExpression = oclQuery.getOclExpression();
// We replace all the occurrence of the parameters in the query by the
// corresponding value.
// if (stringExpression != null) {
// if (parameterValues != null) {
// for (final ParameterValue paramValue : parameterValues) {
// final String tmp = stringExpression;
// final String name = paramValue.getParameter().getName();
// final Object value = paramValue.getValue();
// String string;
// if (value == null) {
// string = "null"; //$NON-NLS-1$
// } else {
// string = value.toString();
// }
// stringExpression = tmp.replaceAll(name, string);
// }
// }
// }
oclExpression = OclQueryUtil.createOCLExpression(context, stringExpression);
}
if (oclExpression != null) {
evaluateQuery = OclQueryUtil.evaluateQuery(context, oclExpression, source);
}
return evaluateQuery;
}
}
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