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/*****************************************************************************
* Copyright (c) 2011, 2016 Atos Origin, CEA, 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:
* Vincent Hemery (Atos) vincent.hemery@atos.net - Initial API and implementation
* Christian W. Damus (CEA) - bug 415639
* Christian W. Damus - bug 485220
*
*****************************************************************************/
package org.eclipse.papyrus.infra.services.resourceloading.util;
import static org.eclipse.papyrus.infra.core.utils.TransactionHelper.createPrivilegedRunnable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.papyrus.infra.core.language.ILanguageService;
import org.eclipse.papyrus.infra.core.resource.AbstractBaseModel;
import org.eclipse.papyrus.infra.core.resource.IModel;
import org.eclipse.papyrus.infra.core.resource.ModelSet;
import org.eclipse.papyrus.infra.core.resource.sasheditor.DiModel;
import org.eclipse.papyrus.infra.core.sashwindows.di.service.IPageManager;
import org.eclipse.papyrus.infra.core.services.ServiceException;
import org.eclipse.papyrus.infra.core.utils.IPapyrusRunnable;
import org.eclipse.papyrus.infra.emf.utils.ServiceUtilsForResourceSet;
import org.eclipse.papyrus.infra.services.resourceloading.Activator;
import org.eclipse.papyrus.infra.services.resourceloading.Messages;
import org.eclipse.papyrus.infra.tools.notify.NotificationBuilder;
import org.eclipse.papyrus.infra.tools.notify.Type;
import org.eclipse.papyrus.infra.tools.util.CoreExecutors;
import org.eclipse.papyrus.infra.tools.util.IProgressRunnable;
/**
* This class provides utility methods for model loading
*
* @author vhemery
*/
public class LoadingUtils {
/**
* Load corresponding resources in model set for all its existing models.
*
* @param modelSet
* the model set
* @param uriWithoutFileExtension
* path of resources to load without file extension
*/
public static void loadResourcesInModelSet(final ModelSet modelSet, final URI uriWithoutFileExtension) {
// This must be created on the UI thread
final NotificationBuilder error = NotificationBuilder
.createAsyncPopup(Messages.LoadingUtils_ErrorTitle, String.format(Messages.LoadingUtils_ErrorMessage, uriWithoutFileExtension.toString()))
.setType(Type.ERROR).setDelay(2000);
runInEditingDomain(modelSet, monitor -> {
try {
try {
IPageManager pageMngr = ServiceUtilsForResourceSet.getInstance().getIPageManager(modelSet);
List<Object> allPages = pageMngr.allPages();
// mark progress
monitor.beginTask(Messages.LoadingUtils_RefreshPagesTask, allPages.size());
// the uri is added after getting all the pages. If it is done before, the eobjects are resolved
for (Object o : allPages) {
// refresh pages to display proxy diagrams
if (o instanceof EObject) {
EObject eobject = (EObject) o;
if (eobject.eIsProxy()) {
InternalEObject internal = (InternalEObject) eobject;
URI uriProxy = internal.eProxyURI();
URI trimFragment = uriProxy.trimFragment();
if (uriWithoutFileExtension.equals(trimFragment.trimFileExtension())) {
try {
Resource r = modelSet.getResource(trimFragment, true);
if (r != null) {
EObject newEObject = r.getEObject(uriProxy.fragment());
if (pageMngr.isOpen(newEObject)) {
pageMngr.selectPage(newEObject);
}
} else {
error.run();
}
} catch (Exception e) {
error.run();
Activator.logError(e);
}
}
}
}
// mark progress
monitor.worked(1);
}
Set<String> extensions = getExtensions(modelSet);
// mark progress
monitor.beginTask(Messages.LoadingUtils_LoadModelsTask, extensions.size());
for (String s : extensions) {
try {
URI uriToLoad = uriWithoutFileExtension.appendFileExtension(s);
Resource r = modelSet.getResource(uriToLoad, true);
if (r == null) {
error.run();
}
} catch (Exception re) {
error.run();
Activator.logError(re);
}
// mark progress
monitor.worked(1);
}
} catch (ServiceException e) {
Activator.logError(e);
}
} finally {
// mark progress
monitor.done();
}
});
}
/**
* Unload corresponding resources from model set for all its existing models.
*
* @param modelSet
* the model set
* @param uriWithoutFileExtension
* path of resources to unload without file extension
*/
public static void unloadResourcesFromModelSet(ModelSet modelSet, URI uriWithoutFileExtension) {
runInEditingDomain(modelSet, monitor -> {
try {
// mark progress
monitor.beginTask(Messages.LoadingUtils_UnloadModelsTask, modelSet.getResources().size());
// Use the platform string of a normalized URI for comparison below, see bug 372326
// (registered libraries in the model set have different URIs - e.g. due to a pathmap -
// although they point to the same location).
// TODO: Use a single detection mechanism in ResourceUpdateService and here
String unloadPlatformString;
if (uriWithoutFileExtension.isPlatform()) {
unloadPlatformString = uriWithoutFileExtension.toPlatformString(true);
} else {
unloadPlatformString = URI.decode(uriWithoutFileExtension.toString());
}
// URIConverter uriConverter = modelSet.getURIConverter();
// unload resource
for (Resource res : new ArrayList<Resource>(modelSet.getResources())) {
URI normalizedURI = res.getURI();
String platformString;
if (normalizedURI.isPlatform()) {
platformString = normalizedURI.trimFileExtension().toPlatformString(true);
} else {
platformString = URI.decode(normalizedURI.trimFileExtension().toString());
}
if ((platformString != null) && platformString.equals(unloadPlatformString)) {
// unload this resource
res.unload();
// there is no need to remove it from the resource set (which inevitably
// causes ConcurrentModificationExceptions!), especially as we may be
// loading it again (the editor is still open)
}
// mark progress
monitor.worked(1);
}
// // mark progress
// monitor.beginTask("Resolve", 1);
// EcoreUtil.resolveAll(modelSet);
// monitor.worked(1);
} finally {
// mark progress
monitor.done();
}
});
}
static void runInEditingDomain(ModelSet modelSet, IPapyrusRunnable runnable) {
try {
// Created the privileged progress-runnable that borrows the editing domain
IProgressRunnable privileged = createPrivilegedRunnable(
modelSet.getTransactionalEditingDomain(),
runnable);
// And wrap it in the service-registry context for best possible UI feed-back
privileged = ServiceUtilsForResourceSet.getInstance().runnable(privileged, modelSet);
// Go
CoreExecutors.getUIExecutorService().syncExec(privileged);
} catch (Exception e) {
Activator.log.error(e);
}
}
/**
* Get list of file extensions existing for this model set
*
* @param modelSet
* model set to find common extensions for
* @return extensions list to explore
*/
private static Set<String> getExtensions(ModelSet modelSet) {
Set<String> result = new HashSet<String>();
// FIXME: Also need to generalize the notation and DI models
result.add("notation"); //$NON-NLS-1$
result.add(DiModel.DI_FILE_EXTENSION);
// Get the semantic model extensions
Collection<IModel> languageModels = ILanguageService.getLanguageModels(modelSet);
if (languageModels.isEmpty()) {
// No semantic models? Force UML for compatibility
Activator.log.warn("Semantic service unavailable. Assuming a UML model."); //$NON-NLS-1$
result.add("uml"); //$NON-NLS-1$
} else {
for (IModel model : languageModels) {
if (model instanceof AbstractBaseModel) {
URI uri = ((AbstractBaseModel) model).getResourceURI();
if ((uri != null) && (uri.fileExtension() != null)) {
result.add(uri.fileExtension());
}
}
}
}
return result;
}
/**
* Get File from a URI
*
* @param uri
* the URI to transform
* @return the corresponding file
*/
public static IFile getFile(URI uri) {
IPath path = getPath(uri);
if (path != null) {
return ResourcesPlugin.getWorkspace().getRoot().getFile(path);
}
return null;
}
/**
* Get Path from a URI
*
* @param uri
* the URI to transform
* @return the corresponding path
*/
public static IPath getPath(URI uri) {
String scheme = uri.scheme();
IPath path = null;
if ("platform".equals(scheme)) { //$NON-NLS-1$
path = Path.fromPortableString(uri.toPlatformString(true));
} else if ("file".equals(scheme)) { //$NON-NLS-1$
path = Path.fromPortableString(uri.toFileString());
}
return path;
}
}
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