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/*****************************************************************************
* Copyright (c) 2013, 2017, 2019 CEA LIST 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:
* Laurent Wouters laurent.wouters@cea.fr - Initial API and implementation
* Christian W. Damus - bug 527580
* Ansgar Radermacher - bug 539754
* Nicolas FAUVERGUE (CEA LIST) nicolas.fauvergue@cea.fr - Bug 550568
*
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.common.helper;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.papyrus.infra.gmfdiag.common.AbstractPapyrusGmfCreateDiagramCommandHandler;
import org.eclipse.papyrus.infra.gmfdiag.common.Activator;
import org.eclipse.papyrus.infra.gmfdiag.common.utils.DiagramUtils;
import org.eclipse.papyrus.infra.gmfdiag.representation.PapyrusDiagram;
import org.eclipse.papyrus.infra.tools.util.ClassLoaderHelper;
import org.eclipse.papyrus.infra.viewpoints.policy.AbstractViewTypeHelper;
import org.eclipse.papyrus.infra.viewpoints.policy.PolicyChecker;
import org.eclipse.papyrus.infra.viewpoints.policy.ViewPrototype;
/**
* Represents the dynamic contribution of a policy to menus
*
* @author Laurent Wouters
*/
public class GMFDiagramViewTypeHelper extends AbstractViewTypeHelper<PapyrusDiagram> {
/**
* Initializes me.
*/
public GMFDiagramViewTypeHelper() {
super(PapyrusDiagram.class);
}
@Override
public boolean isSupported(EObject view) {
return (view instanceof Diagram);
}
/**
* {@inheritDoc}
*
* @since 3.100
*/
@Override
protected ViewPrototype doGetPrototypeFor(PapyrusDiagram diagramKind) {
String commandClassName = diagramKind.getCreationCommandClass();
if (commandClassName != null) {
Class<? extends AbstractPapyrusGmfCreateDiagramCommandHandler> creationCommandClass = ClassLoaderHelper.loadClass(commandClassName, AbstractPapyrusGmfCreateDiagramCommandHandler.class, EcoreUtil.getURI(diagramKind));
if (creationCommandClass != null) {
AbstractPapyrusGmfCreateDiagramCommandHandler command;
try {
command = creationCommandClass.newInstance();
} catch (Exception e) {
Activator.log.error(e);
return null;
}
String language = diagramKind.getLanguage().getId();
return new DiagramPrototype(diagramKind, language, command);
} else {
// ClassLoaderHelper should have already logged an exception, but without stating diagram kind
Activator.log.error(new ClassNotFoundException(
String.format("Can not load creation command class %s for diagramKind %s.", //$NON-NLS-1$
commandClassName, diagramKind.getName())));
}
}
return null;
}
/**
* {@inheritDoc}
*
* @since 3.2
*/
@Override
protected ViewPrototype doGetPrototypeOf(EObject view) {
Diagram diagram = (Diagram) view;
PolicyChecker checker = getPolicyChecker(diagram);
return DiagramUtils.getPrototype(diagram, checker, false);
}
}
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