org.apache.jackrabbit.oak.namepath.PathTracker Maven / Gradle / Ivy
/*
* 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;
}
}