/* $Id: JavaRuntimeUtility.java 17887 2010-01-12 21:17:18Z linus $

  *****************************************************************************

  * Copyright (c) 2009 Contributors - see below

  * All rights reserved. This program and the accompanying materials

  * are made available under the terms of the Eclipse Public License v1.0

  * which accompanies this distribution, and is available at

  * http://www.eclipse.org/legal/epl-v10.html

  *

  * Contributors:

  *    bobtarling

  *****************************************************************************

  *

  * Some portions of this file was previously release using the BSD License:

  */

 // Copyright (c) 2008 The Regents of the University of California. All

 // Rights Reserved. Permission to use, copy, modify, and distribute this

 // software and its documentation without fee, and without a written

 // agreement is hereby granted, provided that the above copyright notice

 // and this paragraph appear in all copies. This software program and

 // documentation are copyrighted by The Regents of the University of

 // California. The software program and documentation are supplied "AS

 // IS", without any accompanying services from The Regents. The Regents

 // does not warrant that the operation of the program will be

 // uninterrupted or error-free. The end-user understands that the program

 // was developed for research purposes and is advised not to rely

 // exclusively on the program for any reason. IN NO EVENT SHALL THE

 // UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,

 // SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,

 // ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF

 // THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF

 // SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY

 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE

 // PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF

 // CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,

 // UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

 package org.argouml.util;

 /**

  * Some utility methods to simplify tests of what Java Runtime is currently in

  * use.

  */

 public class JavaRuntimeUtility {

     /**

      * Determine if the java runtime found is supported by the current version

      * of ArgoUML.

      * 

      * @return true if the version of Java is supported

      */

     public static boolean isJreSupported() {

         String javaVersion = System.getProperty("java.version", "");

         return (!(javaVersion.startsWith("1.4") 

                 || javaVersion.startsWith("1.3")

                 || javaVersion.startsWith("1.2")

                 || javaVersion.startsWith("1.1")));

     }

     /**

      * Determine if the java runtime found is JRE 5

      * <p>Note that plugins should not rely on this method existing in

      * it is likely to be removed without deprecation as soon as JRE 5 is

      * no longer supported.

      * 

      * @return true if we're running on JRE 5

      */

     public static boolean isJre5() {

         String javaVersion = System.getProperty("java.version", "");

         return (javaVersion.startsWith("1.5"));

     }

     /**

      * Get the JRE version described in system properties

      * @return the JRE version

      */

     public static String getJreVersion() {

         return System.getProperty("java.version", "");

     }

 }