| /******************************************************************************* |
| * Copyright (c) 2006, 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 |
| * Alexander Kurtakov <akurtako@redhat.com> - Bug 459343 |
| *******************************************************************************/ |
| package org.eclipse.core.tests.internal.mapping; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.eclipse.core.resources.*; |
| import org.eclipse.core.resources.mapping.ModelStatus; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.osgi.util.NLS; |
| |
| /** |
| * A description of the changes found in a delta |
| */ |
| public class ChangeDescription { |
| |
| public static final String ADDED = "Added {0}"; |
| public static final String CHANGED = "Changed {0}"; |
| public static final String CLOSED = "Closed {0}"; |
| public static final String COPIED = "Copied {0}"; |
| public static final String MOVED = "Moved {0}"; |
| public static final String REMOVED = "Removed {0}"; |
| |
| private List<IResource> addedRoots = new ArrayList<>(); |
| private List<IResource> changedRoots = new ArrayList<>(); |
| private List<IResource> closedProjects = new ArrayList<>(); |
| private List<IResource> copiedRoots = new ArrayList<>(); |
| private List<Status> errors = new ArrayList<>(); |
| private List<IResource> movedRoots = new ArrayList<>(); |
| private List<IResource> removedRoots = new ArrayList<>(); |
| |
| public static String getMessageFor(String messageTemplate, IResource resource) { |
| return NLS.bind(messageTemplate, resource.getFullPath().toString()); |
| } |
| |
| private void accumulateStatus(IResource[] resources, List<ModelStatus> result, String message) { |
| for (IResource resource : resources) { |
| result.add(new ModelStatus(IStatus.WARNING, "org.eclipse.core.tests.resources", TestModelProvider.ID, getMessageFor(message, resource))); |
| } |
| } |
| |
| public void addError(CoreException e) { |
| errors.add(new Status(IStatus.ERROR, "org.eclipse.core.tests.resources", 0, "An error occurred", e)); |
| } |
| |
| public IStatus asStatus() { |
| if (errors.isEmpty()) { |
| List<ModelStatus> result = new ArrayList<>(); |
| accumulateStatus(addedRoots.toArray(new IResource[addedRoots.size()]), result, ADDED); |
| accumulateStatus(removedRoots.toArray(new IResource[removedRoots.size()]), result, REMOVED); |
| accumulateStatus(movedRoots.toArray(new IResource[movedRoots.size()]), result, MOVED); |
| accumulateStatus(copiedRoots.toArray(new IResource[copiedRoots.size()]), result, COPIED); |
| accumulateStatus(changedRoots.toArray(new IResource[changedRoots.size()]), result, CHANGED); |
| accumulateStatus(closedProjects.toArray(new IResource[closedProjects.size()]), result, CLOSED); |
| if (!result.isEmpty()) { |
| if (result.size() == 1) { |
| return result.get(0); |
| } |
| return new MultiStatus("org.eclipse.core.tests.resources", 0, result.toArray(new IStatus[result.size()]), "Changes were validated", null); |
| } |
| return Status.OK_STATUS; |
| } else if (errors.size() == 1) { |
| return errors.get(0); |
| } |
| return new MultiStatus("org.eclipse.core.tests.resources", 0, errors.toArray(new IStatus[errors.size()]), "Errors occurred", null); |
| } |
| |
| private IResource createSourceResource(IResourceDelta delta) { |
| IPath sourcePath = delta.getMovedFromPath(); |
| IResource resource = delta.getResource(); |
| IWorkspaceRoot wsRoot = ResourcesPlugin.getWorkspace().getRoot(); |
| switch (resource.getType()) { |
| case IResource.PROJECT : |
| return wsRoot.getProject(sourcePath.segment(0)); |
| case IResource.FOLDER : |
| return wsRoot.getFolder(sourcePath); |
| case IResource.FILE : |
| return wsRoot.getFile(sourcePath); |
| } |
| return null; |
| } |
| |
| private void ensureResourceCovered(IResource resource, List<IResource> list) { |
| IPath path = resource.getFullPath(); |
| for (IResource root : list) { |
| if (root.getFullPath().isPrefixOf(path)) { |
| return; |
| } |
| } |
| list.add(resource); |
| } |
| |
| private void handleAdded(IResourceDelta delta) { |
| if ((delta.getFlags() & IResourceDelta.MOVED_FROM) != 0) { |
| handleMove(delta); |
| } else if ((delta.getFlags() & IResourceDelta.COPIED_FROM) != 0) { |
| handleCopy(delta); |
| } else { |
| ensureResourceCovered(delta.getResource(), addedRoots); |
| } |
| } |
| |
| private void handleChange(IResourceDelta delta) { |
| if ((delta.getFlags() & IResourceDelta.REPLACED) != 0) { |
| // A replace was added in place of a removed resource |
| handleAdded(delta); |
| } else if (delta.getResource().getType() == IResource.FILE) { |
| ensureResourceCovered(delta.getResource(), changedRoots); |
| } |
| } |
| |
| private void handleCopy(IResourceDelta delta) { |
| if ((delta.getFlags() & IResourceDelta.COPIED_FROM) != 0) { |
| IResource source = createSourceResource(delta); |
| ensureResourceCovered(source, copiedRoots); |
| } |
| } |
| |
| private void handleMove(IResourceDelta delta) { |
| if ((delta.getFlags() & IResourceDelta.MOVED_TO) != 0) { |
| ensureResourceCovered(delta.getResource(), movedRoots); |
| } else if ((delta.getFlags() & IResourceDelta.MOVED_FROM) != 0) { |
| IResource source = createSourceResource(delta); |
| ensureResourceCovered(source, movedRoots); |
| } |
| } |
| |
| private void handleRemoved(IResourceDelta delta) { |
| if ((delta.getFlags() & IResourceDelta.OPEN) != 0) { |
| closedProjects.add(delta.getResource()); |
| } else if ((delta.getFlags() & IResourceDelta.MOVED_TO) != 0) { |
| handleMove(delta); |
| } else { |
| ensureResourceCovered(delta.getResource(), removedRoots); |
| } |
| } |
| |
| /** |
| * Record the change and return whether any child changes should be visited. |
| * @param delta the change |
| * @return whether any child changes should be visited |
| */ |
| public boolean recordChange(IResourceDelta delta) { |
| switch (delta.getKind()) { |
| case IResourceDelta.ADDED : |
| handleAdded(delta); |
| return true; // Need to traverse children to look for moves or other changes under added roots |
| case IResourceDelta.REMOVED : |
| handleRemoved(delta); |
| // No need to look for further changes under a remove (such as moves). |
| // Changes will be discovered in corresponding destination delta |
| return false; |
| case IResourceDelta.CHANGED : |
| handleChange(delta); |
| return true; |
| } |
| return true; |
| } |
| |
| } |