/******************************************************************************* | |
* Copyright (c) 2011-2020 The University of York, Aston University. | |
* | |
* This program and the accompanying materials are made available under the | |
* terms of the Eclipse Public License 2.0 which is available at | |
* http://www.eclipse.org/legal/epl-2.0. | |
* | |
* This Source Code may also be made available under the following Secondary | |
* Licenses when the conditions for such availability set forth in the Eclipse | |
* Public License, v. 2.0 are satisfied: GNU General Public License, version 3. | |
* | |
* SPDX-License-Identifier: EPL-2.0 OR GPL-3.0 | |
* | |
* Contributors: | |
* Konstantinos Barmpis - initial API and implementation | |
* Antonio Garcia-Dominguez - change to use registered EMF resource factories | |
******************************************************************************/ | |
package org.eclipse.hawk.emf.model; | |
import java.io.File; | |
import java.util.Collections; | |
import java.util.HashSet; | |
import java.util.Map; | |
import java.util.Set; | |
import org.eclipse.emf.common.util.URI; | |
import org.eclipse.emf.ecore.resource.Resource; | |
import org.eclipse.emf.ecore.resource.Resource.Factory; | |
import org.eclipse.emf.ecore.resource.ResourceSet; | |
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl; | |
import org.eclipse.emf.ecore.xmi.impl.XMIResourceFactoryImpl; | |
import org.eclipse.hawk.core.IFileImporter; | |
import org.eclipse.hawk.core.IModelResourceFactory; | |
import org.eclipse.hawk.core.model.IHawkModelResource; | |
import org.eclipse.hawk.emf.EMFWrapperFactory; | |
import org.slf4j.Logger; | |
import org.slf4j.LoggerFactory; | |
public class EMFModelResourceFactory implements IModelResourceFactory { | |
private static final Logger LOGGER = LoggerFactory.getLogger(EMFModelResourceFactory.class); | |
/** | |
* Property that can be set to a comma-separated list of extensions (e.g. | |
* ".railway,.myext") that should be supported in addition to the default ones | |
* (".xmi" and ".model"). Composite extensions are allowed (e.g. ".rail.way"). | |
*/ | |
public static final String PROPERTY_EXTRA_EXTENSIONS = "org.eclipse.hawk.emf.model.extraExtensions"; | |
private static final String TYPE = "org.eclipse.hawk.emf.metamodel.EMFModelParser"; | |
private static final String HUMAN_READABLE_NAME = "EMF Model Resource Factory"; | |
private Set<String> modelExtensions; | |
public EMFModelResourceFactory() { | |
modelExtensions = new HashSet<String>(); | |
for (String ext : Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap().keySet()) { | |
if (!Resource.Factory.Registry.DEFAULT_EXTENSION.equals(ext)) { | |
modelExtensions.add("." + ext); | |
} | |
} | |
modelExtensions.add(".xmi"); | |
modelExtensions.add(".model"); | |
// TODO is this still needed? | |
final String sExtraExtensions = System.getProperty(PROPERTY_EXTRA_EXTENSIONS); | |
if (sExtraExtensions != null) { | |
String[] extraExtensions = sExtraExtensions.split(","); | |
for (String extraExtension : extraExtensions) { | |
modelExtensions.add(extraExtension); | |
} | |
} | |
} | |
@Override | |
public final String getType() { | |
return TYPE; | |
} | |
@Override | |
public String getHumanReadableName() { | |
return HUMAN_READABLE_NAME; | |
} | |
@Override | |
public IHawkModelResource parse(IFileImporter importer, File f) { | |
IHawkModelResource ret; | |
Resource r = null; | |
try { | |
final ResourceSet resourceSet = new ResourceSetImpl(); | |
// Try to use the globally registered factory, use XMI factory as fallback | |
final URI fileURI = URI.createFileURI(f.getCanonicalPath()); | |
final Factory factory = createResourceFactory(resourceSet, fileURI); | |
r = factory.createResource(fileURI); | |
r.load(createEMFLoadOptions()); | |
ret = new EMFModelResource(r, new EMFWrapperFactory(), this); | |
} catch (Exception e) { | |
LOGGER.error("Failed to parse " + f.getAbsolutePath(), e); | |
ret = null; | |
} | |
return ret; | |
} | |
@Override | |
public void shutdown() { | |
// nothing to do | |
} | |
@Override | |
public Set<String> getModelExtensions() { | |
return modelExtensions; | |
} | |
protected Factory createResourceFactory(ResourceSet resourceSet, URI fileURI) { | |
Factory factory = resourceSet.getResourceFactoryRegistry().getFactory(fileURI); | |
if (factory == null) { | |
return new XMIResourceFactoryImpl(); | |
} else { | |
return factory; | |
} | |
} | |
protected Map<?, ?> createEMFLoadOptions() { | |
return Collections.emptyMap(); | |
} | |
@Override | |
public boolean canParse(File f) { | |
String[] split = f.getPath().split("\\."); | |
String extension = split[split.length - 1]; | |
return getModelExtensions().contains("." + extension); | |
} | |
} |