| /** |
| * 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.hadoop.util; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| |
| /** |
| * A wrapper class to maven's ComparableVersion class, to comply |
| * with maven's version name string convention |
| */ |
| @InterfaceAudience.Private |
| public abstract class VersionUtil { |
| /** |
| * Compares two version name strings using maven's ComparableVersion class. |
| * |
| * @param version1 |
| * the first version to compare |
| * @param version2 |
| * the second version to compare |
| * @return a negative integer if version1 precedes version2, a positive |
| * integer if version2 precedes version1, and 0 if and only if the two |
| * versions are equal. |
| */ |
| public static int compareVersions(String version1, String version2) { |
| ComparableVersion v1 = new ComparableVersion(version1); |
| ComparableVersion v2 = new ComparableVersion(version2); |
| return v1.compareTo(v2); |
| } |
| } |