| /******************************************************************************* |
| * Copyright (c) 2007, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.ltk.internal.ui.refactoring.actions; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.core.commands.AbstractHandler; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.core.runtime.IAdapterManager; |
| import org.eclipse.core.runtime.NullProgressMonitor; |
| import org.eclipse.core.runtime.Platform; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.mapping.ResourceMapping; |
| import org.eclipse.core.resources.mapping.ResourceMappingContext; |
| import org.eclipse.core.resources.mapping.ResourceTraversal; |
| |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| |
| import org.eclipse.ltk.internal.ui.refactoring.RefactoringUIPlugin; |
| |
| public abstract class AbstractResourcesHandler extends AbstractHandler { |
| |
| protected IResource[] getSelectedResources(IStructuredSelection sel) { |
| List<IResource> resources= new ArrayList<>(sel.size()); |
| for (Iterator<?> e= sel.iterator(); e.hasNext();) { |
| Object next= e.next(); |
| if (next instanceof IResource) { |
| resources.add((IResource) next); |
| continue; |
| } else if (next instanceof IAdaptable) { |
| IResource resource= ((IAdaptable) next).getAdapter(IResource.class); |
| if (resource != null) { |
| resources.add(resource); |
| continue; |
| } |
| } else { |
| IAdapterManager adapterManager= Platform.getAdapterManager(); |
| ResourceMapping mapping= adapterManager.getAdapter(next, ResourceMapping.class); |
| |
| if (mapping != null) { |
| |
| ResourceTraversal[] traversals= null; |
| try { |
| traversals= mapping.getTraversals(ResourceMappingContext.LOCAL_CONTEXT, new NullProgressMonitor()); |
| } catch (CoreException exception) { |
| RefactoringUIPlugin.log(exception.getStatus()); |
| } |
| |
| if (traversals != null) { |
| for (int i= 0; i < traversals.length; i++) { |
| IResource[] traversalResources= traversals[i].getResources(); |
| if (traversalResources != null) { |
| resources.addAll(Arrays.asList(traversalResources)); // for |
| }// if |
| }// for |
| }// if |
| }// if |
| } |
| } |
| return resources.toArray(new IResource[resources.size()]); |
| } |
| |
| } |