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/*****************************************************************************
* Copyright (c) 2013 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.views.search.scope;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.papyrus.infra.core.resource.ModelMultiException;
import org.eclipse.papyrus.infra.core.resource.ModelSet;
import org.eclipse.papyrus.infra.core.resource.NotFoundException;
import org.eclipse.papyrus.infra.core.resource.sasheditor.SashModel;
import org.eclipse.papyrus.infra.emf.utils.BusinessModelResolver;
import org.eclipse.papyrus.infra.onefile.model.IPapyrusFile;
import org.eclipse.papyrus.views.search.Activator;
import org.eclipse.papyrus.views.search.Messages;
import org.eclipse.papyrus.views.search.utils.ModelUtils;
import org.eclipse.search.ui.ISearchPageContainer;
import org.eclipse.ui.IWorkingSet;
public class ScopeCollector implements IScopeCollector {
private static ScopeCollector instance = null;
private ScopeCollector() {
super();
}
public final static ScopeCollector getInstance() {
if(ScopeCollector.instance == null) {
synchronized(ScopeCollector.class) {
if(ScopeCollector.instance == null) {
ScopeCollector.instance = new ScopeCollector();
}
}
}
return ScopeCollector.instance;
}
/**
* @see org.eclipse.papyrus.views.search.scope.IScopeCollector#computeSearchScope(org.eclipse.search.ui.ISearchPageContainer)
*
* @param container
* @return
*/
public Collection<IResource> computeSearchScope(ISearchPageContainer container) {
Set<IResource> results = new HashSet<IResource>();
if(container == null) {
//Worksapce scope
results.addAll(createWorkspaceScope());
} else {
switch(container.getSelectedScope()) {
case ISearchPageContainer.WORKSPACE_SCOPE:
{
results.addAll(createWorkspaceScope());
break;
}
case ISearchPageContainer.SELECTION_SCOPE:
{
ISelection selection = container.getSelection();
if(!selection.isEmpty()) {
if(selection instanceof IStructuredSelection) {
results.addAll(createSelectionScope((IStructuredSelection)selection));
} else {
//Do a workspace search instead
results.addAll(createWorkspaceScope());
}
} else {
//Do a workspace search instead
results.addAll(createWorkspaceScope());
}
break;
}
case ISearchPageContainer.SELECTED_PROJECTS_SCOPE:
{
String[] projects = container.getSelectedProjectNames();
results.addAll(createProjectsScope(projects));
break;
}
case ISearchPageContainer.WORKING_SET_SCOPE:
{
IWorkingSet[] workingSets = container.getSelectedWorkingSets();
results.addAll(createWorkingSetsScope(workingSets));
break;
}
default:
{
break;
}
}
}
return results;
}
/**
* Create a scope when the container is ISearchPageContainer.SELECTION_SCOPE
*
* @param selection
* the selection of the container
* @return
* the scope
*/
protected List<IResource> createSelectionScope(IStructuredSelection selection) {
List<IResource> results = new ArrayList<IResource>();
Iterator it = selection.iterator();
while(it.hasNext()) {
Object object = (Object)it.next();
if(object instanceof IPapyrusFile) {
results.add(((IPapyrusFile)object).getMainFile());
} else if(object instanceof IResource) {
results.addAll(findPapyrusModels((IResource)object));
} else {
Object element = BusinessModelResolver.getInstance().getBusinessModel(object);
if(element instanceof EObject) {
Resource eResource = ((EObject)element).eResource();
IFile resource = ModelUtils.getIFile(eResource);
if(resource != null) {
try {
ModelSet modelSet = ModelUtils.openFile(resource);
SashModel sashModel = (SashModel)modelSet.getModelChecked(SashModel.MODEL_ID);
IFile diResource = ModelUtils.getIFile(sashModel.getResource());
results.add((IFile)diResource);
modelSet.unload();
} catch (ModelMultiException e) {
//Do a workspace search instead
results.addAll(createWorkspaceScope());
} catch (NotFoundException e) {
//Do a workspace search instead
results.addAll(createWorkspaceScope());
}
} else {
//Do a workspace search instead
results.addAll(createWorkspaceScope());
}
} else {
//Do a workspace search instead
results.addAll(createWorkspaceScope());
}
}
}
return results;
}
/**
* Create a scope when the container is ISearchPageContainer.SELECTED_PROJECTS_SCOPE
*
* @param projects
* the selected scope
* @return
* the scope
*/
protected List<IResource> createProjectsScope(String[] projects) {
List<IResource> results = new ArrayList<IResource>();
for(String projectName : projects) {
IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(projectName);
if(project.isOpen()) {
results.addAll(findPapyrusModels(project));
}
}
return results;
}
/**
* Create a scope when the container is ISearchPageContainer.WORKING_SET_SCOPE
*
* @param workingSets
* the selected workingSets
* @return
* the scope
*/
protected List<IResource> createWorkingSetsScope(IWorkingSet[] workingSets) {
List<IResource> results = new ArrayList<IResource>();
if(workingSets != null && workingSets.length > 0) {
for(IWorkingSet iWorkingSet : workingSets) {
for(IAdaptable element : iWorkingSet.getElements()) {
Object resource = element.getAdapter(IResource.class);
if(resource instanceof IResource) {
results.addAll(findPapyrusModels((IResource)resource));
}
}
}
}
return results;
}
/**
* Find all Papyrus models from a specific root
*
* @param res
* the root
* @return
* the found Papyrus models
*/
protected Collection<IResource> findPapyrusModels(IResource res) {
ResourceVisitor visitor = new ResourceVisitor();
try {
res.accept(visitor, IResource.DEPTH_INFINITE);
} catch (CoreException e) {
Activator.log.warn(Messages.ScopeCollector_0 + res);
}
return visitor.getParticipants();
}
/**
* Create a scope when the container is ISearchPageContainer.WORKSPACE_SCOPE
*
* @return
* the scope
*/
protected Collection<IResource> createWorkspaceScope() {
//Go through the workspace root
IResource root = ResourcesPlugin.getWorkspace().getRoot();
return findPapyrusModels(root);
}
}
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