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/*******************************************************************************
* Copyright (c) 2011, 2016 THALES GLOBAL SERVICES.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.editor.properties.sections.description.representationextensiondescription;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.edit.command.AddCommand;
import org.eclipse.emf.edit.command.RemoveCommand;
import org.eclipse.sirius.editor.properties.sections.description.representationdescription.DescriptionMetamodelsUpdater;
import org.eclipse.sirius.viewpoint.description.DescriptionPackage;
import org.eclipse.sirius.viewpoint.description.RepresentationDescription;
import org.eclipse.sirius.viewpoint.description.RepresentationExtensionDescription;
/**
* A class to update the
* {@link RepresentationExtensionDescription#getMetamodel()} feature of a
* contextual {@link RepresentationExtensionDescription}.
*
* @author <a href="mailto:esteban.dugueperoux@obeo.fr">Esteban Dugueperoux</a>
*/
public class RepresentationExtensionDescriptionMetamodelsUpdater extends DescriptionMetamodelsUpdater {
private RepresentationExtensionDescription representationExtensionDescription;
/**
* Default constructor.
*
* @param representationDescription
* the {@link RepresentationDescription} to update
*/
public RepresentationExtensionDescriptionMetamodelsUpdater(RepresentationExtensionDescription representationDescription) {
super(null, DescriptionPackage.eINSTANCE.getRepresentationDescription_Metamodel());
this.representationExtensionDescription = representationDescription;
}
/**
* Add the {@link EPackage}s specified by <code>ePackageURIs</code> to the
* contextual {@link RepresentationExtensionDescription} on the
* {@link RepresentationExtensionDescription#getMetamodel()} feature.
*
* @param ePackageURIs
* the specified {@link EPackage}s {@link URI}
*/
@Override
public void addEPackages(List<EPackage> ePackages) {
if (!ePackages.isEmpty()) {
Command addEPackagesCmd = AddCommand.create(editingDomain, representationExtensionDescription, DescriptionPackage.Literals.REPRESENTATION_EXTENSION_DESCRIPTION__METAMODEL, ePackages);
editingDomain.getCommandStack().execute(addEPackagesCmd);
}
}
/**
* Remove the specified <code>ePackages</code> to the contextual
* {@link RepresentationDescription} on the
* {@link RepresentationDescription#getMetamodel()} feature.
*
* @param ePackages
* the list of {@link EPackage} to remove
*/
@Override
public void removeEPackages(List<EPackage> ePackages) {
if (!ePackages.isEmpty()) {
Command removeEPackagesCmd = RemoveCommand.create(editingDomain, representationExtensionDescription, DescriptionPackage.Literals.REPRESENTATION_EXTENSION_DESCRIPTION__METAMODEL,
ePackages);
editingDomain.getCommandStack().execute(removeEPackagesCmd);
Set<Resource> relatedResourcesToRemove = getRelatedResourcesToRemove(ePackages);
for (Resource relatedResourceToRemove : relatedResourcesToRemove) {
editingDomain.getResourceSet().getResources().remove(relatedResourceToRemove);
}
}
}
/**
* Retains {@link Resource} to remove from the {@link ResourceSet} only for
* one for which all EPackages are asked to remove.
*
* @param ePackagesToRemove
* {@link EPackage} to remove
*
* @return the related {@link Resource} to remove from the
* {@link ResourceSet}
*/
@Override
protected Set<Resource> getRelatedResourcesToRemove(List<EPackage> ePackagesToRemove) {
Set<Resource> relatedResourcesToRemove = new LinkedHashSet<Resource>();
for (Resource ePackageToRemoveResource : getRelatedResources(ePackagesToRemove)) {
if (ePackageToRemoveResource != null) {
List<EPackage> ePackagesOfResourceToRemove = getEPackages(ePackageToRemoveResource);
if (Collections.disjoint(ePackagesOfResourceToRemove, representationExtensionDescription.getMetamodel())) {
relatedResourcesToRemove.add(ePackageToRemoveResource);
}
}
}
return relatedResourcesToRemove;
}
}
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