| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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.core.refactoring.resource; |
| |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Path; |
| |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| |
| public class ResourceProcessors { |
| |
| public static String[] computeAffectedNatures(IResource resource) throws CoreException { |
| IProject project= resource.getProject(); |
| Set<String> result= new HashSet<>(); |
| Set<IProject> visitedProjects= new HashSet<>(); |
| computeNatures(result, visitedProjects, project); |
| return result.toArray(new String[result.size()]); |
| } |
| |
| public static String[] computeAffectedNatures(IResource[] resources) throws CoreException { |
| Set<String> result= new HashSet<>(); |
| Set<IProject> visitedProjects= new HashSet<>(); |
| for (IResource resource : resources) { |
| computeNatures(result, visitedProjects, resource.getProject()); |
| } |
| return result.toArray(new String[result.size()]); |
| } |
| |
| private static void computeNatures(Set<String> result, Set<IProject> visitedProjects, IProject focus) throws CoreException { |
| if (visitedProjects.contains(focus)) |
| return; |
| String[] pns= focus.getDescription().getNatureIds(); |
| result.addAll(Arrays.asList(pns)); |
| visitedProjects.add(focus); |
| IProject[] referencing= focus.getReferencingProjects(); |
| for (IProject r : referencing) { |
| computeNatures(result, visitedProjects, r); |
| } |
| } |
| |
| public static IPath handleToResourcePath(final String project, final String handle) { |
| final IPath path= Path.fromPortableString(handle); |
| if (project != null && project.length() > 0 && !path.isAbsolute()) |
| return new Path(project).append(path).makeAbsolute(); |
| return path; |
| } |
| |
| public static String resourcePathToHandle(final String project, final IPath resourcePath) { |
| if (project != null && project.length() > 0 && resourcePath.segmentCount() != 1) |
| if (resourcePath.segment(0).equals(project)) { |
| return resourcePath.removeFirstSegments(1).toPortableString(); |
| } |
| return resourcePath.toPortableString(); |
| } |
| } |