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/******************************************************************************
* Copyright (c) 2009, 2020 Borland Software Corporation, CEA LIST, Artal
*
* 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:
* Artem Tikhomirov (Borland) - initial API and implementation
* Aurelien Didier (ARTAL) - aurelien.didier51@gmail.com - Bug 569174
*****************************************************************************/
package org.eclipse.papyrus.gmf.internal.codegen.util;
import java.io.IOException;
import org.eclipse.emf.codegen.ecore.genmodel.GenModel;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.plugin.EcorePlugin;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
import org.eclipse.m2m.qvt.oml.blackbox.java.Operation;
import org.eclipse.m2m.qvt.oml.blackbox.java.Operation.Kind;
/**
* Logic comes from org.eclipse.papyrus.gmf.internal.bridge.genmodel.BasicGenModelAccess, with few handy methods
* to access well-known genmodels
* @author artem
*/
public class GenModelAccessHelpers {
private ResourceSet myDefaultSet;
@Operation(contextual = false, kind = Kind.HELPER)
public GenModel loadGenModel(String nsURI) {
return loadGenModel(nsURI, null);
}
@Operation(contextual = false, kind = Kind.HELPER)
public GenModel loadGenModel(String nsURI, EObject context) {
ResourceSet rs = getResourceSet(context);
URI genModelFromExtPoint = EcorePlugin.getEPackageNsURIToGenModelLocationMap().get(nsURI);
if (genModelFromExtPoint != null) {
return (GenModel) rs.getEObject(genModelFromExtPoint.appendFragment("/"), true); //$NON-NLS-1$
}
// try to guess .genmodel file location based on .ecore file location (if any)
EPackage ecoreModel = rs.getPackageRegistry().getEPackage(nsURI);
if (ecoreModel != null && ecoreModel.eResource() != null && ecoreModel.eResource().getURI() != null) {
URI ecoreModelURI = ecoreModel.eResource().getURI();
if (!ecoreModelURI.equals(nsURI)) { // owning resource points to some real stream
// alternative: ecoreModelURI.isFile() || ecoreModelURI.isPlatform() || ecoreModelURI.isArchive()
// e.g. smth we can try to access as a file
URI genModelURI = ecoreModelURI.trimFileExtension().appendFileExtension("genmodel");
if (!genModelURI.equals(ecoreModelURI)) {
Resource genModelRes = rs.getResource(genModelURI, false);
try {
genModelRes.load(rs.getLoadOptions());
if (genModelRes.getContents().size() > 0) {
return (GenModel) genModelRes.getContents().get(0);
}
} catch (IOException ex) {
// IGNORE
}
}
// else FALLTHROUGH
}
}
// final attempt - try nsURI as if it was file URI (e.g. platform:/plugin/...)
URI genModelUri = URI.createURI(nsURI);
return (GenModel) rs.getEObject(genModelUri.appendFragment("/"), true); //$NON-NLS-1$
}
@Operation(contextual = false, kind = Kind.HELPER)
public GenModel loadEcoreGenModel() {
return loadEcoreGenModel(null);
}
@Operation(contextual = false, kind = Kind.HELPER)
public GenModel loadEcoreGenModel(EObject context) {
URI genModelUri = URI.createURI("platform:/plugin/org.eclipse.emf.ecore/model/Ecore.genmodel#/"); //$NON-NLS-1$
return (GenModel) getResourceSet(context).getEObject(genModelUri, true);
}
@Operation(contextual = false, kind = Kind.HELPER)
public GenModel loadNotationGenModel() {
return loadNotationGenModel(null);
}
@Operation(contextual = false, kind = Kind.HELPER)
public GenModel loadNotationGenModel(EObject context) {
URI genModelUri = URI.createURI("platform:/plugin/org.eclipse.gmf.runtime.notation/model/notation.genmodel#/"); //$NON-NLS-1$
return (GenModel) getResourceSet(context).getEObject(genModelUri, true);
}
private ResourceSet getResourceSet(EObject context) {
if (context == null || context.eResource() == null || context.eResource().getResourceSet() == null) {
if (myDefaultSet == null) {
myDefaultSet = new ResourceSetImpl();
}
return myDefaultSet;
}
return context.eResource().getResourceSet();
}
}
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