org.apache.jackrabbit.oak.plugins.document.PathComparator 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.plugins.document;
import java.io.Serializable;
import java.util.Comparator;
import org.apache.jackrabbit.oak.plugins.document.util.Utils;
/**
* Implements a comparator, which sorts path string according to 1) their
* depth (highest first) and 2) the path string itself.
*/
public class PathComparator implements Comparator, Serializable {
private static final long serialVersionUID = -1523171906146067782L;
public static final Comparator INSTANCE = new PathComparator();
private PathComparator() {
}
@Override
public int compare(String o1, String o2) {
int d1 = Utils.pathDepth(o1);
int d2 = Utils.pathDepth(o2);
if (d1 != d2) {
return Integer.signum(d2 - d1);
}
return o1.compareTo(o2);
}
}