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/*******************************************************************************
* Copyright (c) 2012, 2014 Obeo.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package data.models;
import static com.google.common.collect.Lists.newArrayList;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Collections;
import java.util.List;
import org.eclipse.compare.ITypedElement;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.emf.common.notify.Notifier;
import org.eclipse.emf.common.util.BasicMonitor;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.common.util.WrappedException;
import org.eclipse.emf.compare.Comparison;
import org.eclipse.emf.compare.EMFCompare;
import org.eclipse.emf.compare.conflict.DefaultConflictDetector;
import org.eclipse.emf.compare.conflict.IConflictDetector;
import org.eclipse.emf.compare.diagram.internal.CompareDiagramPostProcessor;
import org.eclipse.emf.compare.diff.DefaultDiffEngine;
import org.eclipse.emf.compare.diff.DiffBuilder;
import org.eclipse.emf.compare.diff.IDiffEngine;
import org.eclipse.emf.compare.diff.IDiffProcessor;
import org.eclipse.emf.compare.equi.DefaultEquiEngine;
import org.eclipse.emf.compare.equi.IEquiEngine;
import org.eclipse.emf.compare.ide.ui.internal.logical.ComparisonScopeBuilder;
import org.eclipse.emf.compare.match.DefaultMatchEngine;
import org.eclipse.emf.compare.match.IMatchEngine;
import org.eclipse.emf.compare.postprocessor.IPostProcessor;
import org.eclipse.emf.compare.req.DefaultReqEngine;
import org.eclipse.emf.compare.req.IReqEngine;
import org.eclipse.emf.compare.scope.DefaultComparisonScope;
import org.eclipse.emf.compare.scope.IComparisonScope;
import org.eclipse.emf.compare.uml2.internal.postprocessor.UMLPostProcessor;
import org.eclipse.emf.compare.utils.UseIdentifiers;
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.uml2.uml.UMLPackage;
import org.eclipse.uml2.uml.resource.UMLResource;
import com.google.common.io.Closeables;
public abstract class Data {
private List<ResourceSet> resourceSets = newArrayList();
private Comparison comparison;
private final Notifier left;
private final Notifier right;
private final Notifier ancestor;
public abstract Notifier loadLeft();
public abstract Notifier loadRight();
public abstract Notifier loadAncestor();
/**
*
*/
protected Data() {
left = loadLeft();
right = loadRight();
ancestor = loadAncestor();
}
/**
* @return the left
*/
public Notifier getLeft() {
return left;
}
/**
* @return the right
*/
public Notifier getRight() {
return right;
}
/**
* @return the ancestor
*/
public Notifier getAncestor() {
return ancestor;
}
protected ResourceSet createResourceSet() {
ResourceSet resourceSet = new ResourceSetImpl();
resourceSet.getPackageRegistry().put(UMLPackage.eNS_URI, UMLPackage.eINSTANCE);
resourceSet.getResourceFactoryRegistry().getExtensionToFactoryMap().put(UMLResource.FILE_EXTENSION, UMLResource.Factory.INSTANCE);
resourceSets.add(resourceSet);
return resourceSet;
}
public void logicalModel(ITypedElement leftTypedElement, ITypedElement rightTypedElement) {
ComparisonScopeBuilder.create(null, leftTypedElement, rightTypedElement, null, new NullProgressMonitor());
}
public Comparison match() {
return match(UseIdentifiers.ONLY);
}
public Comparison match(UseIdentifiers useIDs) {
final IComparisonScope scope = new DefaultComparisonScope(getLeft(), getRight(), getAncestor());
final IMatchEngine matchEngine = DefaultMatchEngine.create(useIDs);
comparison = matchEngine.match(scope, new BasicMonitor());
return comparison;
}
public Comparison diff() {
final IDiffProcessor diffBuilder = new DiffBuilder();
final IDiffEngine diffEngine = new DefaultDiffEngine(diffBuilder);
diffEngine.diff(comparison, new BasicMonitor());
return comparison;
}
public void req() {
final IReqEngine reqEngine = new DefaultReqEngine();
reqEngine.computeRequirements(comparison, new BasicMonitor());
}
public void equi() {
final IEquiEngine equiEngine = new DefaultEquiEngine();
equiEngine.computeEquivalences(comparison, new BasicMonitor());
}
public void conflict() {
final IConflictDetector conflictDetector = new DefaultConflictDetector();
conflictDetector.detect(comparison, new BasicMonitor());
}
public void compare() {
final IComparisonScope scope = new DefaultComparisonScope(getLeft(), getRight(), getAncestor());
EMFCompare.builder().build().compare(scope);
}
public void postComparisonGMF() {
final IPostProcessor postProcessor = new CompareDiagramPostProcessor();
postProcessor.postComparison(comparison, new BasicMonitor());
}
public void postMatchUML() {
final IPostProcessor postProcessor = new UMLPostProcessor();
postProcessor.postMatch(comparison, new BasicMonitor());
}
public void postComparisonUML() {
final IPostProcessor postProcessor = new UMLPostProcessor();
postProcessor.postComparison(comparison, new BasicMonitor());
}
public void dispose() {
comparison = null;
for (ResourceSet rs : resourceSets) {
EList<Resource> resources = rs.getResources();
for (Resource resource : resources) {
resource.unload();
}
}
resourceSets = null;
}
/**
* Tries and locate a model in the current class' classpath.
*
* @param string
* Relative path to the model we seek (relative to this class).
* @param resourceSet
* the resource set in which to load the resource.
* @return The loaded resource.
* @throws IOException
* Thrown if we could not access either this class' resource, or the file towards which
* <code>path</code> points.
*/
// Suppressing the warning until bug 376938 is fixed
protected Resource loadFromClassLoader(String path, ResourceSet resourceSet) {
final URL fileURL = getClass().getResource(path);
final URI uri = URI.createURI(fileURL.toString());
final Resource existing = resourceSet.getResource(uri, false);
if (existing != null) {
return existing;
}
InputStream stream = null;
Resource resource = null;
try {
resource = resourceSet.createResource(uri);
stream = fileURL.openStream();
resource.load(stream, Collections.emptyMap());
} catch (IOException e) {
// return null
} catch (WrappedException e) {
// return null
} finally {
try {
Closeables.close(stream, true);
} catch (IOException e) {
// already swallowed
}
}
return resource;
}
}
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