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/*******************************************************************************
* Copyright (c) 2011, 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:
* Nicolas Bros (Mia-Software) - Bug 361612 - New core for new version of the Facet metamodel
* Nicolas Bros (Mia-Software) - Bug 362191 - [Restructuring] Query mechanism for eFacet2
* Gregoire Dupe (Mia-Software) - Bug 373078 - API Cleaning
* Nicolas Bros (Mia-Software) - Bug 376941 - [EFacet] Facet operation arguments in Facet model
*******************************************************************************/
package org.eclipse.papyrus.emf.facet.efacet.core.internal.query;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.ETypedElement;
import org.eclipse.papyrus.emf.facet.efacet.core.FacetUtils;
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.Facet;
import org.eclipse.papyrus.emf.facet.efacet.metamodel.v0_2_0.efacet.extensible.Query;
public final class QueryUtils {
private QueryUtils() {
// utility class
}
/** @return a description to help identify this query in error messages */
public static String getQueryDescription(final Query query) {
StringBuffer sb = new StringBuffer();
sb.append("[Query eClass:"); //$NON-NLS-1$
sb.append(query.eClass().getName());
DerivedTypedElement owningDerivedTypedElement = QueryUtils
.getOwningDerivedTypedElement(query);
if (owningDerivedTypedElement != null) {
sb.append(" defined on "); //$NON-NLS-1$
sb.append(owningDerivedTypedElement.getClass().getSimpleName());
EClassifier eType = owningDerivedTypedElement.getEType();
if (eType != null) {
sb.append(" of type '"); //$NON-NLS-1$
sb.append(eType.getName());
sb.append("' named: '"); //$NON-NLS-1$
} else {
sb.append(" named: '"); //$NON-NLS-1$
}
sb.append(owningDerivedTypedElement.getName());
sb.append("'"); //$NON-NLS-1$
} else {
sb.append(" with a null owning derived typed element"); //$NON-NLS-1$
}
sb.append("]"); //$NON-NLS-1$
return sb.toString();
}
// Moved from
// org.eclipse.papyrus.emf.facet.efacet.metamodel.v0_2_0.efacet.extensible.impl.QueryImpl
public static EClassifier getReturnType(final Query query) {
EClassifier result = null;
final DerivedTypedElement owningDTE = QueryUtils
.getOwningDerivedTypedElement(query);
if (owningDTE != null) {
result = owningDTE.getEType();
}
return result;
}
// Moved from
// org.eclipse.papyrus.emf.facet.efacet.metamodel.v0_2_0.efacet.extensible.impl.QueryImpl
public static EClassifier getSourceType(final Query query) {
EClassifier result = null;
final DerivedTypedElement owningDTE = QueryUtils
.getOwningDerivedTypedElement(query);
if (owningDTE != null) {
final EObject eContainer = QueryUtils.getOwningDerivedTypedElement(
query).eContainer();
if (eContainer instanceof Facet) {
final Facet facet = (Facet) eContainer;
result = FacetUtils.getExtendedMetaclass(facet);
} else if (eContainer instanceof ETypedElement) {
final ETypedElement typedElement = (ETypedElement) eContainer;
result = typedElement.getEType();
}
}
return result;
}
// Moved from
// org.eclipse.papyrus.emf.facet.efacet.metamodel.v0_2_0.efacet.extensible.impl.QueryImpl
public static DerivedTypedElement getOwningDerivedTypedElement(
final Query query) {
DerivedTypedElement result = null;
EObject container = query.eContainer();
while (container != null) {
if (container instanceof DerivedTypedElement) {
result = (DerivedTypedElement) container;
break;
}
container = container.eContainer();
}
if (result == null) {
throw new IllegalStateException("Query must always be contained by a DerivedTypedElement"); //$NON-NLS-1$
}
return (DerivedTypedElement) container;
}
// Moved from
// org.eclipse.papyrus.emf.facet.efacet.metamodel.v0_2_0.efacet.extensible.impl.QueryImpl
public static boolean isMany(final Query query) {
boolean result = false;
final DerivedTypedElement owningDTE = QueryUtils
.getOwningDerivedTypedElement(query);
if (owningDTE != null) {
result = owningDTE.isMany();
}
return result;
}
}
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