| /******************************************************************************* |
| * 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 |
| * James Blackburn (Broadcom Corp.) - ongoing development |
| * Lars Vogel <Lars.Vogel@vogella.com> - Bug 473427 |
| *******************************************************************************/ |
| package org.eclipse.core.internal.resources.mapping; |
| |
| import java.util.*; |
| import org.eclipse.core.resources.*; |
| import org.eclipse.core.runtime.*; |
| |
| /** |
| * Concrete implementation of IResourceDelta used for operation validation |
| */ |
| public final class ProposedResourceDelta extends PlatformObject implements IResourceDelta { |
| protected static int KIND_MASK = 0xFF; |
| |
| private HashMap<String, ProposedResourceDelta> children = new HashMap<>(8); |
| private IPath movedFromPath; |
| private IPath movedToPath; |
| private IResource resource; |
| private int status; |
| |
| public ProposedResourceDelta(IResource resource) { |
| this.resource = resource; |
| } |
| |
| @Override |
| public void accept(IResourceDeltaVisitor visitor) throws CoreException { |
| accept(visitor, 0); |
| } |
| |
| @Override |
| public void accept(IResourceDeltaVisitor visitor, boolean includePhantoms) throws CoreException { |
| accept(visitor, includePhantoms ? IContainer.INCLUDE_PHANTOMS : 0); |
| } |
| |
| @Override |
| public void accept(IResourceDeltaVisitor visitor, int memberFlags) throws CoreException { |
| if (!visitor.visit(this)) |
| return; |
| for (ProposedResourceDelta childDelta : children.values()) { |
| childDelta.accept(visitor, memberFlags); |
| } |
| } |
| |
| /** |
| * Adds a child delta to the list of children for this delta node. |
| * @param delta |
| */ |
| protected void add(ProposedResourceDelta delta) { |
| if (children.size() == 0 && status == 0) |
| setKind(IResourceDelta.CHANGED); |
| children.put(delta.getResource().getName(), delta); |
| } |
| |
| /** |
| * Adds the given flags to this delta. |
| * @param flags The flags to add |
| */ |
| protected void addFlags(int flags) { |
| //make sure the provided flags don't influence the kind |
| this.status |= (flags & ~KIND_MASK); |
| } |
| |
| @Override |
| public IResourceDelta findMember(IPath path) { |
| int segmentCount = path.segmentCount(); |
| if (segmentCount == 0) |
| return this; |
| |
| //iterate over the path and find matching child delta |
| ProposedResourceDelta current = this; |
| for (int i = 0; i < segmentCount; i++) { |
| current = current.children.get(path.segment(i)); |
| if (current == null) |
| return null; |
| } |
| return current; |
| } |
| |
| @Override |
| public IResourceDelta[] getAffectedChildren() { |
| return getAffectedChildren(ADDED | REMOVED | CHANGED, IResource.NONE); |
| } |
| |
| @Override |
| public IResourceDelta[] getAffectedChildren(int kindMask) { |
| return getAffectedChildren(kindMask, IResource.NONE); |
| } |
| |
| @Override |
| public IResourceDelta[] getAffectedChildren(int kindMask, int memberFlags) { |
| List<ProposedResourceDelta> result = new ArrayList<>(); |
| for (ProposedResourceDelta child : children.values()) { |
| if ((child.getKind() & kindMask) != 0) |
| result.add(child); |
| } |
| return result.toArray(new IResourceDelta[result.size()]); |
| } |
| |
| /** |
| * Returns the child delta corresponding to the given child resource name, |
| * or <code>null</code>. |
| */ |
| ProposedResourceDelta getChild(String name) { |
| return children.get(name); |
| } |
| |
| @Override |
| public int getFlags() { |
| return status & ~KIND_MASK; |
| } |
| |
| @Override |
| public IPath getFullPath() { |
| return getResource().getFullPath(); |
| } |
| |
| @Override |
| public int getKind() { |
| return status & KIND_MASK; |
| } |
| |
| @Override |
| public IMarkerDelta[] getMarkerDeltas() { |
| return new IMarkerDelta[0]; |
| } |
| |
| @Override |
| public IPath getMovedFromPath() { |
| return movedFromPath; |
| } |
| |
| @Override |
| public IPath getMovedToPath() { |
| return movedToPath; |
| } |
| |
| @Override |
| public IPath getProjectRelativePath() { |
| return getResource().getProjectRelativePath(); |
| } |
| |
| @Override |
| public IResource getResource() { |
| return resource; |
| } |
| |
| public void setFlags(int flags) { |
| status = getKind() | (flags & ~KIND_MASK); |
| } |
| |
| protected void setKind(int kind) { |
| status = getFlags() | (kind & KIND_MASK); |
| } |
| |
| protected void setMovedFromPath(IPath path) { |
| movedFromPath = path; |
| } |
| |
| protected void setMovedToPath(IPath path) { |
| movedToPath = path; |
| } |
| |
| /** |
| * For debugging purposes only. |
| */ |
| @Override |
| public String toString() { |
| return "ProposedDelta(" + resource + ')'; //$NON-NLS-1$ |
| } |
| } |