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/*****************************************************************************
* Copyright (c) 2010, 2016 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 v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
* Christian W. Damus - bug 485220
*
*****************************************************************************/
package org.eclipse.papyrus.customization.properties.providers;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.papyrus.customization.properties.Activator;
import org.eclipse.papyrus.infra.properties.environment.Environment;
import org.eclipse.papyrus.infra.ui.emf.providers.strategy.SemanticEMFContentProvider;
import org.eclipse.papyrus.infra.widgets.providers.IStaticContentProvider;
import org.eclipse.papyrus.views.properties.runtime.ConfigurationManager;
/**
* A Content provider for returning objects for the registered environments
*
* @author Camille Letavernier
*/
public class EnvironmentContentProvider extends SemanticEMFContentProvider implements IStaticContentProvider {
/**
* Constructor.
*
* @param feature
* The EStructuralFeature used to retrieve the elements from the
* different environments.
*/
public EnvironmentContentProvider(EStructuralFeature feature) {
super(null, feature, getRoots(feature), Activator.getDefault().getCustomizationManager());
}
private static EObject[] getRoots(EStructuralFeature feature) {
if (!(feature.getEType() instanceof EClass)) {
Activator.log.warn("The feature " + feature + " cannot be handled by this content provider");
return new EObject[0];
}
List<Object> allObjects = new LinkedList<>();
for (Environment environment : ConfigurationManager.getInstance().getPropertiesRoot().getEnvironments()) {
allObjects.addAll((List<?>) environment.eGet(feature));
}
return allObjects.toArray(new EObject[0]);
}
}
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