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/*****************************************************************************
* Copyright (c) 2014, 2015, 2018 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:
* Christian W. Damus - Initial API and implementation
* Ansgar Radermacher - Bug 526155, re-generation from profile: use ID as XML-ID
*
*****************************************************************************/
package org.eclipse.papyrus.uml.profile.types.generator;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Set;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
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.emf.ecore.xmi.XMLResource;
import org.eclipse.papyrus.infra.emf.utils.EMFHelper;
import org.eclipse.papyrus.infra.types.ElementTypeConfiguration;
import org.eclipse.papyrus.infra.types.ElementTypeSetConfiguration;
import org.eclipse.papyrus.uml.profile.types.generator.internal.Activator;
import org.eclipse.uml2.common.util.UML2Util;
import com.google.common.base.Strings;
import com.google.common.collect.Sets;
import com.google.inject.Guice;
import com.google.inject.Inject;
import com.google.inject.Injector;
/**
* Scaffolding for an Xtend model-to-model transformation.
*
* @param <T>
* the kind of model element that I generate from a UML profile
*/
public abstract class AbstractGenerator<I extends EObject, O extends EObject> {
private final Injector injector;
@Inject
@InputModel
private EClass inputType;
@Inject
@OutputModel
private EClass outputType;
@Inject
private Identifiers identifiers;
public AbstractGenerator(Identifiers identifiers) {
this(new GeneratorModule(identifiers));
}
public AbstractGenerator(GeneratorModule module) {
super();
this.injector = Guice.createInjector(module);
injector.injectMembers(this);
}
public String getLabel() {
String result = identifiers.getLabel(outputType);
return Strings.isNullOrEmpty(result) ? "output model" : result;
}
public IStatus generate(URI inputURI, URI outputURI) {
IStatus result;
ResourceSet resourceSet = new ResourceSetImpl();
try {
I input = UML2Util.load(resourceSet, inputURI, inputType);
result = generate(input, outputURI);
} finally {
EMFHelper.unload(resourceSet);
}
return result;
}
public IStatus generate(I input, URI outputURI) {
IStatus result;
ResourceSet resourceSet = new ResourceSetImpl();
try {
Resource output = resourceSet.createResource(outputURI);
result = generate(input, output.getContents());
// use Identifier as XML-ID. This implies that the same XML-ID is used when re-generating
EObject set = output.getContents().size() > 0 ? output.getContents().get(0) : null;
if (set instanceof ElementTypeSetConfiguration) {
for (ElementTypeConfiguration elemTypeConfig : ((ElementTypeSetConfiguration) set).getElementTypeConfigurations()) {
String id = elemTypeConfig.getIdentifier();
if (id != null && id.length() > 0) {
((XMLResource) output).setID(elemTypeConfig, escapeID(id));
}
}
}
try {
output.save(null);
} catch (IOException e) {
throw new CoreException(new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Failed to save output", e));//$NON-NLS-1$
}
refreshContainer(outputURI);
} catch (CoreException e) {
result = e.getStatus();
} finally {
EMFHelper.unload(resourceSet);
}
return result;
}
/**
* Replace problematic characters in identifier with "_", before using it as XML-id
* in particular, the :: can be used by the generator.
*
* @param id an ID
* @return
*/
public String escapeID(String id) {
id = id.replaceAll(" ", "_");
id = id.replaceAll(":", "_");
return id;
}
public IStatus generate(I input, EList<? super EObject> output) {
IStatus result = Status.OK_STATUS;
output.add(generate(input));
return result;
}
protected abstract O generate(I input);
protected void refreshContainer(URI resourceURI) throws CoreException {
if (resourceURI.isPlatformResource()) {
IContainer container = ResourcesPlugin.getWorkspace().getRoot().getFile(new Path(resourceURI.toPlatformString(true))).getParent();
if ((container != null) && container.isAccessible()) {
container.refreshLocal(IResource.DEPTH_ONE, null);
}
} else if (resourceURI.isFile()) {
try {
IFile[] files = ResourcesPlugin.getWorkspace().getRoot().findFilesForLocationURI(new java.net.URI(resourceURI.toString()));
Set<IContainer> containers = Sets.newHashSet();
for (IFile next : files) {
containers.add(next.getParent());
}
for (IContainer next : containers) {
next.refreshLocal(IResource.DEPTH_ONE, null);
}
} catch (URISyntaxException e) {
throw new CoreException(new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Bad resource URI", e));//$NON-NLS-1$
}
}
}
}
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