| /******************************************************************************* |
| * Copyright (c) 2000, 2017 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.team.core.mapping.provider; |
| |
| import java.util.*; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.resources.mapping.ResourceTraversal; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.team.core.diff.*; |
| import org.eclipse.team.core.diff.provider.DiffTree; |
| import org.eclipse.team.core.mapping.IResourceDiff; |
| import org.eclipse.team.core.mapping.IResourceDiffTree; |
| |
| /** |
| * Implementation of {@link IResourceDiffTree}. |
| * |
| * @since 3.2 |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class ResourceDiffTree extends DiffTree implements IResourceDiffTree { |
| |
| /** |
| * Get the resource for the diff node that was obtained from an |
| * {@link IResourceDiffTree}. |
| * @param node the diff node. |
| * @return the resource for the diff node |
| */ |
| public static IResource getResourceFor(IDiff node) { |
| if (node instanceof IResourceDiff) { |
| IResourceDiff rd = (IResourceDiff) node; |
| return rd.getResource(); |
| } |
| if (node instanceof IThreeWayDiff) { |
| IThreeWayDiff twd = (IThreeWayDiff) node; |
| IDiff child = twd.getLocalChange(); |
| if (child != null) |
| return getResourceFor(child); |
| child = twd.getRemoteChange(); |
| if (child != null) |
| return getResourceFor(child); |
| } |
| Assert.isLegal(false); |
| return null; |
| } |
| |
| @Override |
| public IDiff getDiff(IResource resource) { |
| return getDiff(resource.getFullPath()); |
| } |
| |
| @Override |
| public IResource getResource(IDiff diff) { |
| if (diff instanceof IThreeWayDiff) { |
| IThreeWayDiff twd = (IThreeWayDiff) diff; |
| IResourceDiff localChange = ((IResourceDiff)twd.getLocalChange()); |
| if (localChange != null) |
| return localChange.getResource(); |
| return ((IResourceDiff)twd.getRemoteChange()).getResource(); |
| } else { |
| return ((IResourceDiff)diff).getResource(); |
| } |
| } |
| |
| @Override |
| public void accept(ResourceTraversal[] traversals, IDiffVisitor visitor) { |
| for (int i = 0; i < traversals.length; i++) { |
| ResourceTraversal traversal = traversals[i]; |
| IResource[] resources = traversal.getResources(); |
| for (int j = 0; j < resources.length; j++) { |
| IResource resource = resources[j]; |
| accept(resource.getFullPath(), visitor, traversal.getDepth()); |
| } |
| } |
| } |
| |
| @Override |
| public IDiff[] getDiffs(final ResourceTraversal[] traversals) { |
| final Set<IDiff> result = new HashSet<>(); |
| for (int i = 0; i < traversals.length; i++) { |
| ResourceTraversal traversal = traversals[i]; |
| IResource[] resources = traversal.getResources(); |
| for (int j = 0; j < resources.length; j++) { |
| IResource resource = resources[j]; |
| internalGetDiffs(resource, traversal.getDepth(), result); |
| } |
| } |
| return result.toArray(new IDiff[result.size()]); |
| } |
| |
| @Override |
| public IDiff[] getDiffs(IResource resource, int depth) { |
| final Set<IDiff> result = new HashSet<>(); |
| internalGetDiffs(resource, depth, result); |
| return result.toArray(new IDiff[result.size()]); |
| } |
| |
| private void internalGetDiffs(IResource resource, int depth, final Set<IDiff> result) { |
| accept(resource.getFullPath(), diff -> result.add(diff), depth); |
| } |
| |
| private IResource internalGetResource(IPath fullPath, boolean container) { |
| if (container) { |
| if (fullPath.segmentCount() == 1) |
| return ResourcesPlugin.getWorkspace().getRoot().getProject(fullPath.segment(0)); |
| return ResourcesPlugin.getWorkspace().getRoot().getFolder(fullPath); |
| } |
| return ResourcesPlugin.getWorkspace().getRoot().getFile(fullPath); |
| } |
| |
| @Override |
| public IResource[] members(IResource resource) { |
| List<IResource> result = new ArrayList<>(); |
| IPath[] paths = getChildren(resource.getFullPath()); |
| for (int i = 0; i < paths.length; i++) { |
| IPath path = paths[i]; |
| IDiff node = getDiff(path); |
| if (node == null) { |
| result.add(internalGetResource(path, true)); |
| } else { |
| result.add(getResource(node)); |
| } |
| } |
| return result.toArray(new IResource[result.size()]); |
| } |
| |
| @Override |
| public IResource[] getAffectedResources() { |
| List<IResource> result = new ArrayList<>(); |
| IDiff[] nodes = getDiffs(); |
| for (int i = 0; i < nodes.length; i++) { |
| IDiff node = nodes[i]; |
| result.add(getResource(node)); |
| } |
| return result.toArray(new IResource[result.size()]); |
| } |
| |
| @Override |
| public void add(IDiff delta) { |
| Assert.isTrue(delta instanceof IResourceDiff || delta instanceof IThreeWayDiff); |
| super.add(delta); |
| } |
| |
| /** |
| * Remove the diff associated with the given resource from |
| * the tree. |
| * @param resource the resource |
| */ |
| public void remove(IResource resource) { |
| remove(resource.getFullPath()); |
| } |
| |
| @Override |
| public boolean hasMatchingDiffs(ResourceTraversal[] traversals, final FastDiffFilter filter) { |
| final RuntimeException found = new RuntimeException(); |
| try { |
| accept(traversals, delta -> { |
| if (filter.select(delta)) { |
| throw found; |
| } |
| return false; |
| }); |
| } catch (RuntimeException e) { |
| if (e == found) |
| return true; |
| throw e; |
| } |
| return false; |
| } |
| } |