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Java > Open Source Codes > gcc > util > SystemUtil


1 /*
2  * Copyright 2004 The Apache Software Foundation or its licensors, as
3  * applicable.
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * 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
14  * implied.
15  *
16  * See the License for the specific language governing permissions and
17  * limitations under the License.
18  */
19 package gcc.util;
20
21 import gcc.properties.*;
22
23 public class SystemUtil
24 {
25     // properties
26
27     public static final StringProperty vmVersionProperty =
28         new StringProperty(SystemProperties.class, "java.vm.version");
29
30     // private data
31
32     private static String _vmVersion = vmVersionProperty.getString();
33
34     private static boolean _isJDK13 = _vmVersion.startsWith("1.3")
35         || _vmVersion.startsWith("CrE-ME V4.00");
36
37     private static boolean _isJDK14 = _vmVersion.startsWith("1.4");
38
39     // public methods
40
41     public static String getExecutableSuffix()
42     {
43         return isWindows() ? ".exe" : "";
44     }
45
46     public static String getShellScriptSuffix()
47     {
48         return isWindows() ? ".bat" : ".sh";
49     }
50
51     public static boolean isJDK13()
52     {
53         return _isJDK13;
54     }
55
56     public static boolean isJDK14()
57     {
58         return _isJDK14;
59     }
60
61     public static boolean isWindows()
62     {
63         return java.io.File.separatorChar == '\\';
64     }
65 }
66
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