| /***************************************************************************** |
| * Copyright (c) 2013, 2017 CEA LIST. |
| * |
| * 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: |
| * CEA LIST - Initial API and implementation |
| *****************************************************************************/ |
| package org.eclipse.papyrus.cdo.uml.search.internal.ui.query; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.OperationCanceledException; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.emf.cdo.view.CDOQuery; |
| import org.eclipse.emf.cdo.view.CDOView; |
| import org.eclipse.emf.common.util.URI; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.eclipse.emf.ecore.resource.ResourceSet; |
| import org.eclipse.net4j.util.event.IListener; |
| import org.eclipse.net4j.util.lifecycle.ILifecycle; |
| import org.eclipse.net4j.util.lifecycle.LifecycleEventAdapter; |
| import org.eclipse.papyrus.cdo.uml.search.internal.ui.Activator; |
| import org.eclipse.papyrus.infra.core.services.ServicesRegistry; |
| import org.eclipse.papyrus.infra.emf.utils.ServiceUtilsForResourceSet; |
| import org.eclipse.papyrus.uml.search.ui.query.AbstractPapyrusQuery; |
| import org.eclipse.papyrus.uml.search.ui.results.PapyrusSearchResult; |
| import org.eclipse.papyrus.views.search.results.AbstractResultEntry; |
| import org.eclipse.papyrus.views.search.results.ModelElementMatch; |
| import org.eclipse.papyrus.views.search.scope.ScopeEntry; |
| import org.eclipse.search.ui.ISearchResult; |
| import org.eclipse.search.ui.text.Match; |
| import org.eclipse.uml2.uml.Element; |
| import org.eclipse.uml2.uml.UMLPackage; |
| |
| import com.google.common.collect.Iterables; |
| import com.google.common.collect.Lists; |
| import com.google.common.collect.Maps; |
| |
| |
| /** |
| * This is the CDOPapyrusQuery type. Enjoy. |
| */ |
| public class CDOPapyrusQuery extends AbstractPapyrusQuery { |
| |
| private final String searchText; |
| |
| private final CDOView view; |
| |
| private final CDOQuery query; |
| |
| private final PapyrusSearchResult searchResult = new PapyrusSearchResult(this); |
| |
| private final AttributeMatchStrategy attributeMatchStrategy; |
| |
| public CDOPapyrusQuery(String searchText, CDOView view, CDOQuery query, AttributeMatchStrategy attributeMatchStrategy) { |
| super(); |
| |
| this.searchText = searchText; |
| this.view = view; |
| this.query = query; |
| this.attributeMatchStrategy = attributeMatchStrategy; |
| |
| view.addListener(createViewClosedListener()); |
| } |
| |
| @Override |
| public String getLabel() { |
| return "Papyrus Model Repository Search"; |
| } |
| |
| @Override |
| public String getSearchQueryText() { |
| return searchText; |
| } |
| |
| @Override |
| public boolean canRerun() { |
| // I can be run again as long as my view is open |
| return (view != null) && !view.isClosed(); |
| } |
| |
| @Override |
| public boolean canRunInBackground() { |
| return true; |
| } |
| |
| @Override |
| public IStatus run(IProgressMonitor monitor) throws OperationCanceledException { |
| IStatus result = Status.OK_STATUS; |
| |
| searchResult.removeAll(); |
| |
| // we cannot query for EClasses that the server doesn't know about. And, |
| // if it doesn't know about an EClass, then a priori, none of its |
| // instances exist, so we don't need to run the query |
| if (view.getSession().getPackageRegistry().getPackageInfo(UMLPackage.eINSTANCE) != null) { |
| List<Element> queryResult = query.getResult(Element.class); |
| |
| final Map<URI, ScopeEntry> scopeEntries = Maps.newHashMap(); |
| |
| // don't use an iterator because it won't be able to advance |
| // past a resource proxy that cannot be resolved |
| for (int i = 0; i < queryResult.size(); i++) { |
| try { |
| Element next = queryResult.get(i); |
| |
| Resource resource = next.eResource(); |
| ResourceSet rset = resource.getResourceSet(); |
| ServicesRegistry services = ServiceUtilsForResourceSet.getInstance().getServiceRegistry(rset); |
| ScopeEntry scopeEntry = scopeEntries.get(resource.getURI()); |
| if (scopeEntry == null) { |
| scopeEntry = new ScopeEntry(resource.getURI(), services); |
| scopeEntries.put(resource.getURI(), scopeEntry); |
| } |
| |
| AbstractResultEntry elementMatch = new ModelElementMatch(next, scopeEntry); |
| searchResult.addMatch(elementMatch); |
| |
| // post-process the query result to determine specific attribute matches |
| postProcessAttributeMatches(searchResult, elementMatch, next); |
| } catch (Exception e) { |
| // can get "node not found" exceptions on incompletely |
| // deleted resources |
| Activator.log.error("Error retrieving resource result from CDO query.", e); //$NON-NLS-1$ |
| } |
| } |
| |
| } |
| |
| return result; |
| } |
| |
| protected void postProcessAttributeMatches(PapyrusSearchResult searchResult, AbstractResultEntry elementMatch, Element element) { |
| List<Match> attributeMatches = Lists.newArrayListWithExpectedSize(1); |
| attributeMatchStrategy.apply(elementMatch, element, attributeMatches); |
| |
| if (!attributeMatches.isEmpty()) { |
| searchResult.addMatches(Iterables.toArray(attributeMatches, Match.class)); |
| } |
| } |
| |
| @Override |
| public ISearchResult getSearchResult() { |
| return searchResult; |
| } |
| |
| private IListener createViewClosedListener() { |
| return new LifecycleEventAdapter() { |
| |
| @Override |
| protected void onDeactivated(ILifecycle lifecycle) { |
| // the view is closed. The user probably closed the repository session. Attempts to access the search results |
| // will fail henceforth, so clear them |
| if (searchResult != null) { |
| searchResult.removeAll(); |
| } |
| } |
| }; |
| } |
| } |