| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.jackrabbit.oak.namepath; |
| |
| import org.apache.jackrabbit.oak.commons.PathUtils; |
| |
| /** |
| * Simple utility class for lazily tracking the current path during |
| * a tree traversal that recurses down a subtree. |
| */ |
| public class PathTracker { |
| |
| private final PathTracker parent; |
| |
| private final String name; |
| |
| private String path; |
| |
| public PathTracker() { |
| this.parent = null; |
| this.name = null; |
| this.path = "/"; |
| } |
| |
| private PathTracker(PathTracker parent, String name) { |
| this.parent = parent; |
| this.name = name; |
| this.path = null; // initialize lazily |
| } |
| |
| public PathTracker getChildTracker(String name) { |
| return new PathTracker(this, name); |
| } |
| |
| public String getPath() { |
| if (path == null) { // implies parent != null |
| path = PathUtils.concat(parent.getPath(), name); |
| } |
| return path; |
| } |
| |
| } |