IANTVersion.java revision f6fe897e173f4e4bda72a7dddb091b667066764a 
1/* Copyright (C) 2003 Vladimir Roubtsov. All rights reserved.
2 *
3 * This program and the accompanying materials are made available under
4 * the terms of the Common Public License v1.0 which accompanies this distribution,
5 * and is available at http://www.eclipse.org/legal/cpl-v10.html
6 *
7 * $Id: IANTVersion.java,v 1.1.1.1.2.1 2004/07/10 03:34:52 vlad_r Exp $
8 */
9package com.vladium.emma.ant;
10
11import java.io.File;
12import java.lang.reflect.Method;
13import java.lang.reflect.Modifier;
14
15import org.apache.tools.ant.types.FileSet;
16
17// ----------------------------------------------------------------------------
18/**
19 * @author Vlad Roubtsov, (C) 2004
20 */
21public
22interface IANTVersion
23{
24    // public: ................................................................
25
26    /** 'true' iff the current runtime version is 1.2 or later */
27    boolean ANT_1_5_PLUS = _ANTVersion._ANT_1_5_PLUS; // static final but not inlinable
28
29
30    abstract class _ANTVersion
31    {
32        static final boolean _ANT_1_5_PLUS; // set in <clinit>
33
34        private _ANTVersion () {  /* prevent subclassing */ }
35
36        static
37        {
38            boolean temp = true;
39            try
40            {
41                final Method m = FileSet.class.getMethod ("setFile", new Class [] { File.class });
42
43                // [assertion: 'm' is public]
44
45                final int modifiers = m.getModifiers ();
46                if ((modifiers & Modifier.STATIC) != 0)
47                    temp = false;
48            }
49            catch (NoSuchMethodException nsme)
50            {
51                temp = false;
52            }
53            catch (SecurityException se)
54            {
55                temp = false;
56            }
57            catch (Throwable t)
58            {
59                t.printStackTrace (System.out);
60                temp = false;
61            }
62
63            _ANT_1_5_PLUS = temp;
64        }
65
66    } // end of nested class
67
68} // end of interface
69// ----------------------------------------------------------------------------