mirror of https://github.com/apache/cloudstack.git
55 lines
2.0 KiB
Java
55 lines
2.0 KiB
Java
// Copyright 2012 Citrix Systems, Inc. Licensed under the
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// Apache License, Version 2.0 (the "License"); you may not use this
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// file except in compliance with the License. Citrix Systems, Inc.
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// reserves all rights not expressly granted by the License.
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// You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Automatically generated by addcopyright.py at 04/03/2012
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package com.cloud.maint;
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public class Version {
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/**
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* Compares two version strings and see which one is higher version.
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* @param ver1
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* @param ver2
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* @return positive if ver1 is higher. negative if ver1 is lower; zero if the same.
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*/
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public static int compare(String ver1, String ver2) {
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String[] tokens1 = ver1.split("[.]");
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String[] tokens2 = ver2.split("[.]");
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// assert(tokens1.length <= tokens2.length);
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int compareLength = Math.min(tokens1.length, tokens2.length);
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for (int i = 0; i < compareLength; i++) {
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long version1 = Long.parseLong(tokens1[i]);
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long version2 = Long.parseLong(tokens2[i]);
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if (version1 != version2) {
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return version1 < version2 ? -1 : 1;
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}
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}
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if (tokens1.length > tokens2.length) {
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return 1;
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} else if (tokens1.length < tokens2.length) {
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return -1;
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}
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return 0;
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}
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public static String trimToPatch(String version) {
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String[] tokens = version.split("[.]");
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return tokens[0] + "." + tokens[1]+ "." + tokens[2];
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}
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public static void main(String[] args) {
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System.out.println("Result is " + compare(args[0], args[1]));
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}
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}
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