/** * 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.hbase.util; import org.apache.commons.logging.LogFactory; import java.io.PrintWriter; import org.apache.hadoop.classification.InterfaceAudience; import org.apache.hadoop.classification.InterfaceStability; import org.apache.hadoop.hbase.VersionAnnotation; import org.apache.commons.logging.Log; /** * This class finds the package info for hbase and the VersionAnnotation * information. Taken from hadoop. Only name of annotation is different. */ @InterfaceAudience.Public @InterfaceStability.Evolving public class VersionInfo { private static final Log LOG = LogFactory.getLog(VersionInfo.class.getName()); private static Package myPackage; private static VersionAnnotation version; static { myPackage = VersionAnnotation.class.getPackage(); version = myPackage.getAnnotation(VersionAnnotation.class); } /** * Get the meta-data for the hbase package. * @return package */ static Package getPackage() { return myPackage; } /** * Get the hbase version. * @return the hbase version string, eg. "0.6.3-dev" */ public static String getVersion() { return version != null ? version.version() : "Unknown"; } /** * Get the subversion revision number for the root directory * @return the revision number, eg. "451451" */ public static String getRevision() { return version != null ? version.revision() : "Unknown"; } /** * The date that hbase was compiled. * @return the compilation date in unix date format */ public static String getDate() { return version != null ? version.date() : "Unknown"; } /** * The user that compiled hbase. * @return the username of the user */ public static String getUser() { return version != null ? version.user() : "Unknown"; } /** * Get the subversion URL for the root hbase directory. * @return the url */ public static String getUrl() { return version != null ? version.url() : "Unknown"; } static String[] versionReport() { return new String[] { "HBase " + getVersion(), "Subversion " + getUrl() + " -r " + getRevision(), "Compiled by " + getUser() + " on " + getDate() }; } public static void writeTo(PrintWriter out) { for (String line : versionReport()) { out.println(line); } } public static void logVersion() { for (String line : versionReport()) { LOG.info(line); } } public static void main(String[] args) { logVersion(); } }