01: // The contents of this file are subject to the Mozilla Public License Version
02: // 1.1
03: //(the "License"); you may not use this file except in compliance with the
04: //License. You may obtain a copy of the License at http://www.mozilla.org/MPL/
05: //
06: //Software distributed under the License is distributed on an "AS IS" basis,
07: //WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
08: //for the specific language governing rights and
09: //limitations under the License.
10: //
11: //The Original Code is "The Columba Project"
12: //
13: //The Initial Developers of the Original Code are Frederik Dietz and Timo
14: // Stich.
15: //Portions created by Frederik Dietz and Timo Stich are Copyright (C) 2003.
16: //
17: //All Rights Reserved.
18: package org.columba.core.plugin;
19:
20: import java.lang.reflect.Constructor;
21:
22: /**
23: * @author fdietz
24: *
25: */
26: public class ClassLoaderHelper {
27:
28: /**
29: * @param args
30: * @param actClass
31: * @return @throws
32: * NoSuchMethodException
33: */
34: public static Constructor findConstructor(Object[] args,
35: Class actClass) throws NoSuchMethodException {
36:
37: Constructor constructor = null;
38:
39: Constructor[] list = actClass.getConstructors();
40:
41: for (int i = 0; i < list.length; i++) {
42: Constructor c = list[i];
43:
44: Class[] parameterTypes = c.getParameterTypes();
45:
46: // this constructor has the correct number
47: // of arguments
48: if (parameterTypes.length == args.length) {
49: boolean success = true;
50:
51: for (int j = 0; j < parameterTypes.length; j++) {
52: Class parameter = parameterTypes[j];
53:
54: if (args[j] == null) {
55: success = true;
56: } else if (!parameter.isAssignableFrom(args[j]
57: .getClass())) {
58: success = false;
59: }
60: }
61:
62: // ok, we found a matching constructor
63: // -> create correct list of arguments
64: if (success) {
65: constructor = actClass
66: .getConstructor(parameterTypes);
67: }
68: }
69: }
70: return constructor;
71: }
72: }
|