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Java > Open Source Codes > org > opencms > setup > comptest > CmsSetupTestJdkVersion


1 /*
2  * File : $Source: /usr/local/cvs/opencms/src/org/opencms/setup/comptest/CmsSetupTestJdkVersion.java,v $
3  * Date : $Date: 2006/03/27 14:52:42 $
4  * Version: $Revision: 1.2 $
5  *
6  * This library is part of OpenCms -
7  * the Open Source Content Mananagement System
8  *
9  * Copyright (c) 2005 Alkacon Software GmbH (http://www.alkacon.com)
10  *
11  * This library is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU Lesser General Public
13  * License as published by the Free Software Foundation; either
14  * version 2.1 of the License, or (at your option) any later version.
15  *
16  * This library is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19  * Lesser General Public License for more details.
20  *
21  * For further information about Alkacon Software GmbH, please see the
22  * company website: http://www.alkacon.com
23  *
24  * For further information about OpenCms, please see the
25  * project website: http://www.opencms.org
26  *
27  * You should have received a copy of the GNU Lesser General Public
28  * License along with this library; if not, write to the Free Software
29  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30  */
31
32 package org.opencms.setup.comptest;
33
34 import org.opencms.setup.CmsSetupBean;
35
36 /**
37  * Tests the version of the JDK.<p>
38  *
39  * @author Michael Moossen
40  *
41  * @version $Revision: 1.2 $
42  *
43  * @since 6.1.8
44  */
45 public class CmsSetupTestJdkVersion implements I_CmsSetupTest {
46
47     /** The test name. */
48     public static final String JavaDoc TEST_NAME = "JDK Version";
49
50     /**
51      * @see org.opencms.setup.comptest.I_CmsSetupTest#getName()
52      */
53     public String JavaDoc getName() {
54
55         return TEST_NAME;
56     }
57
58     /**
59      * @see org.opencms.setup.comptest.I_CmsSetupTest#execute(org.opencms.setup.CmsSetupBean)
60      */
61     public CmsSetupTestResult execute(CmsSetupBean setupBean) {
62
63         CmsSetupTestResult testResult = new CmsSetupTestResult(this);
64
65         String JavaDoc requiredJDK = "1.4.0";
66         String JavaDoc JDKVersion = System.getProperty("java.version");
67
68         testResult.setResult(JDKVersion);
69
70         boolean supportedJDK = compareJDKVersions(JDKVersion, requiredJDK);
71
72         if (!supportedJDK) {
73             testResult.setRed();
74             testResult.setHelp("OpenCms requires at least Java version "
75                 + requiredJDK
76                 + " to run. Please update your JDK");
77         } else {
78             testResult.setGreen();
79         }
80         return testResult;
81     }
82
83     /**
84      * Checks if the used JDK is a higher version than the required JDK.<p>
85      *
86      * @param usedJDK The JDK version in use
87      * @param requiredJDK The required JDK version
88      *
89      * @return true if used JDK version is equal or higher than required JDK version, false otherwise
90      */
91     private boolean compareJDKVersions(String JavaDoc usedJDK, String JavaDoc requiredJDK) {
92
93         int compare = usedJDK.compareTo(requiredJDK);
94         return (!(compare < 0));
95     }
96 }
97
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