/*

  * Copyright 2004-2011 the Seasar Foundation and the Others.

  *

  * Licensed 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.seasar.teeda.core;

 import java.io.InputStream;

 import java.net.URL;

 import java.util.Properties;

 /**

  * @author shot

  * @author manhole

  */

 public class ProductInfo {

     private static final String POM_PROPERTIES_NAME = "META-INF/maven/org.seasar.teeda/teeda-core/pom.properties";

     private static final String UNKNOWN_VERSION = "unknown";

     public static String getProductName() {

         return "Teeda";

     }

     public static String getVersion() {

         try {

             final URL url = Thread.currentThread().getContextClassLoader()

                     .getResource(POM_PROPERTIES_NAME);

             if (url == null) {

                 return UNKNOWN_VERSION;

             }

             final InputStream is = url.openStream();

             try {

                 Properties props = new Properties();

                 props.load(is);

                 return props.getProperty("version");

             } finally {

                 is.close();

             }

         } catch (Exception e) {

             e.printStackTrace();

             return UNKNOWN_VERSION;

         }

     }

     /*

      * MANIFEST.MFのmain-classに指定しておき、jarを実行するとバージョン番号が

      * コンソールへ出力されるようにする。

      */

     public static void main(final String[] args) {

         System.out.println("teeda.version: " + getVersion());

     }

 }