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/*****************************************************************************
* Copyright (c) 2010, 2015 CEA LIST, Christian W. Damus, and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
* Christian W. Damus (CEA) - Factored out some methods from existing code for reuse (CDO)
* Christian W. Damus - bug 482927
*****************************************************************************/
package org.eclipse.papyrus.views.properties.toolsmiths.storage.actions;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.papyrus.infra.properties.contexts.Context;
import org.eclipse.papyrus.infra.properties.contexts.ContextsPackage;
import org.eclipse.papyrus.views.properties.toolsmiths.messages.Messages;
/**
* Utility operations useful in the construction of context storage actions, especially copy.
*/
public class ContextStorageActionUtil {
// not instantiable by clients
private ContextStorageActionUtil() {
super();
}
public static void initializeCopy(Context source, IProgressMonitor monitor) {
monitor.beginTask(Messages.CopyContextAction_InitializingTheCopyOf + source.getUserLabel() + Messages.CopyContextAction_ThisMayTakeSomeTime, IProgressMonitor.UNKNOWN);
// EcoreUtil.resolveAll(source); //This method is too expensive
resolveAllResources(source); // Ignores the *.xwt files. We will copy them manually.
monitor.done();
}
/**
* Lightweight method for loading a resource set
* This method ignores the *.xwt files, which do not contain any useful
* cross-reference (As they can only reference Environment files), and are
* really expensive to load.
*/
private static void resolveAllResources(Context source) {
resolveAllResources(source, new HashSet<EObject>());
}
/**
* Lightweight method for loading a resource set
* This method ignores the *.xwt files, which do not contain any useful
* cross-reference (As they can only reference Environment files), and are
* really expensive to load.
*/
private static void resolveAllResources(EObject source, Set<EObject> visitedEObjects) {
if (!visitedEObjects.add(source)) {
return;
}
for (EReference reference : source.eClass().getEAllReferences()) {
// Do not load *.xwt resources
// These files do not contain any useful cross-reference, and are really expensive to load
if (reference == ContextsPackage.eINSTANCE.getSection_Widget()) {
continue;
}
Object value = source.eGet(reference);
if (value instanceof EList) {
for (Object object : (EList<?>) value) {
if (object instanceof EObject) {
resolveAllResources((EObject) object, visitedEObjects);
}
}
} else if (value instanceof EObject) {
resolveAllResources((EObject) value, visitedEObjects);
}
}
}
public static boolean isRelative(Resource base, Resource resource) {
URI baseURI = base.getURI();
URI resourceURI = resource.getURI();
URI uri = resourceURI.deresolve(baseURI);
if (uri.isRelative()) {
if (!(uri.toString().startsWith("..") || uri.toString().startsWith("/"))) { //$NON-NLS-1$ //$NON-NLS-2$
return true;
}
}
return false;
}
}
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