/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.index.mapper;
public final class ContentPath {
private static final char DELIMITER = '.';
private final StringBuilder sb;
private final int offset;
private int index = 0;
private String[] path = new String[10];
public ContentPath() {
this(0);
}
/**
* Constructs a json path with an offset. The offset will result an <tt>offset</tt>
* number of path elements to not be included in {@link #pathAsText(String)}.
*/
public ContentPath(int offset) {
this.sb = new StringBuilder();
this.offset = offset;
this.index = 0;
}
public void add(String name) {
path[index++] = name;
if (index == path.length) { // expand if needed
String[] newPath = new String[path.length + 10];
System.arraycopy(path, 0, newPath, 0, path.length);
path = newPath;
}
}
public void remove() {
path[index--] = null;
}
public String pathAsText(String name) {
sb.setLength(0);
for (int i = offset; i < index; i++) {
sb.append(path[i]).append(DELIMITER);
}
sb.append(name);
return sb.toString();
}
}