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    1   /**
    2    *  Licensed to the Apache Software Foundation (ASF) under one or more
    3    *  contributor license agreements.  See the NOTICE file distributed with
    4    *  this work for additional information regarding copyright ownership.
    5    *  The ASF licenses this file to You under the Apache License, Version 2.0
    6    *  (the "License"); you may not use this file except in compliance with
    7    *  the License.  You may obtain a copy of the License at
    8    *
    9    *     http://www.apache.org/licenses/LICENSE-2.0
   10    *
   11    *  Unless required by applicable law or agreed to in writing, software
   12    *  distributed under the License is distributed on an "AS IS" BASIS,
   13    *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14    *  See the License for the specific language governing permissions and
   15    *  limitations under the License.
   16    */
   17   
   18   package org.apache.geronimo.system.serverinfo;
   19   
   20   import java.util.Properties;
   21   
   22   /**
   23    * Information about this build of the server.
   24    *
   25    * @version $Rev: 476049 $ $Date: 2006-11-16 20:35:17 -0800 (Thu, 16 Nov 2006) $
   26    */
   27   public class ServerConstants {
   28       private static final String VERSION;
   29       private static final String BUILD_DATE;
   30       private static final String BUILD_TIME;
   31       private static final String COPYRIGHT;
   32   
   33       /**
   34        * Gets the server version
   35        * @return version of the server
   36        */
   37       public static String getVersion() {
   38           return VERSION;
   39       }
   40   
   41       /**
   42        * Gets the date the server was built
   43        * @return date of the server build
   44        */
   45       public static String getBuildDate() {
   46           return BUILD_DATE;
   47       }
   48   
   49       /**
   50        * Gets the time the server was built
   51        * @return time of the server build
   52        */
   53       public static String getBuildTime() {
   54           return BUILD_TIME;
   55       }
   56   
   57       /**
   58        * Gets the copyright message for the server
   59        * @return
   60        */
   61       public static String getCopyright() {
   62           return COPYRIGHT;
   63       }
   64   
   65       /**
   66        * load all of the properties from the geronimo-version.properties file, which is generated during the build
   67        */
   68       static {
   69           Properties versionInfo = new Properties();
   70           try {
   71               java.io.InputStream input = ServerConstants.class.getClassLoader().getResourceAsStream("org/apache/geronimo/system/serverinfo/geronimo-version.properties");
   72               if (input == null) {
   73                   throw new Error("Missing geronimo-version.properties");
   74               }
   75               
   76               versionInfo.load(input);
   77           }
   78           catch (java.io.IOException e) {
   79               throw new Error("Could not load geronimo-version.properties", e);
   80           }
   81           
   82           VERSION = versionInfo.getProperty("version");
   83           if (VERSION == null || VERSION.length() == 0) {
   84               throw new Error("geronimo-version.properties does not contain a 'version' property");
   85           }
   86   
   87           BUILD_DATE = versionInfo.getProperty("build.date");
   88           if (BUILD_DATE == null || BUILD_DATE.length() == 0) {
   89               throw new Error("geronimo-version.properties does not contain a 'build.date' property");
   90           }
   91   
   92           BUILD_TIME = versionInfo.getProperty("build.time");
   93           if (BUILD_TIME == null || BUILD_TIME.length() == 0) {
   94               throw new Error("geronimo-version.properties does not contain a 'build.time' property");
   95           }
   96   
   97           COPYRIGHT = versionInfo.getProperty("copyright");
   98           if (COPYRIGHT == null || COPYRIGHT.length() == 0) {
   99               throw new Error("geronimo-version.properties does not contain a 'copyright' property");
  100           }
  101       }
  102   }

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