1 /* 2 * Copyright (c) 2011. The Apache Software Foundation 3 * 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 21 package org.apache.hadoop.hbase.hbql.util; 22 23 /** 24 * This class finds the package info for hbase and the VersionAnnotation 25 * information. Taken from hadoop. Only name of annotation is different. 26 */ 27 public class VersionInfo { 28 private static Package myPackage; 29 private static VersionAnnotation version; 30 31 static { 32 myPackage = VersionAnnotation.class.getPackage(); 33 version = myPackage.getAnnotation(VersionAnnotation.class); 34 } 35 36 /** 37 * Get the meta-data for the hbase package. 38 * 39 * @return 40 */ 41 static Package getPackage() { 42 return myPackage; 43 } 44 45 /** 46 * Get the hbase version. 47 * 48 * @return the hbase version string, eg. "0.6.3-dev" 49 */ 50 public static String getVersion() { 51 return version != null ? version.version() : "Unknown"; 52 } 53 54 /** 55 * Get the subversion revision number for the root directory 56 * 57 * @return the revision number, eg. "451451" 58 */ 59 public static String getRevision() { 60 return version != null ? version.revision() : "Unknown"; 61 } 62 63 /** 64 * The date that hbase was compiled. 65 * 66 * @return the compilation date in unix date format 67 */ 68 public static String getDate() { 69 return version != null ? version.date() : "Unknown"; 70 } 71 72 /** 73 * The user that compiled hbase. 74 * 75 * @return the username of the user 76 */ 77 public static String getUser() { 78 return version != null ? version.user() : "Unknown"; 79 } 80 81 /** 82 * Get the subversion URL for the root hbase directory. 83 * 84 * @return the url 85 */ 86 public static String getUrl() { 87 return version != null ? version.url() : "Unknown"; 88 } 89 90 /** 91 * @param args 92 */ 93 public static void main(String[] args) { 94 System.out.println("HBql " + getVersion()); 95 } 96 }