Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
ClassFactoryClassLoader |
|
| 4.0;4 |
1 | // Copyright 2004, 2005 The Apache Software Foundation | |
2 | // | |
3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |
4 | // you may not use this file except in compliance with the License. | |
5 | // You may obtain a copy of the License at | |
6 | // | |
7 | // http://www.apache.org/licenses/LICENSE-2.0 | |
8 | // | |
9 | // Unless required by applicable law or agreed to in writing, software | |
10 | // distributed under the License is distributed on an "AS IS" BASIS, | |
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 | // See the License for the specific language governing permissions and | |
13 | // limitations under the License. | |
14 | package org.apache.tapestry.enhance; | |
15 | ||
16 | import java.util.ArrayList; | |
17 | import java.util.List; | |
18 | ||
19 | /** | |
20 | * ClassLoader used to properly instantiate newly created classes. | |
21 | * | |
22 | * @author Howard Lewis Ship / Essl Christian | |
23 | * @see org.apache.hivemind.service.impl.CtClassSource | |
24 | */ | |
25 | 0 | class ClassFactoryClassLoader extends ClassLoader |
26 | { | |
27 | 0 | private List _loaders = new ArrayList(); |
28 | ||
29 | /** | |
30 | * Adds a delegate class loader to the list of delegate class loaders. | |
31 | */ | |
32 | public synchronized void addDelegateLoader(ClassLoader loader) | |
33 | { | |
34 | 0 | _loaders.add(loader); |
35 | 0 | } |
36 | ||
37 | /** | |
38 | * Searches each of the delegate class loaders for the given class. | |
39 | */ | |
40 | protected synchronized Class findClass(String name) throws ClassNotFoundException | |
41 | { | |
42 | 0 | ClassNotFoundException cnfex = null; |
43 | ||
44 | try | |
45 | { | |
46 | 0 | return super.findClass(name); |
47 | } | |
48 | 0 | catch (ClassNotFoundException ex) |
49 | { | |
50 | 0 | cnfex = ex; |
51 | } | |
52 | ||
53 | 0 | int count = _loaders.size(); |
54 | 0 | for (int i = 0; i < count; i++) |
55 | { | |
56 | 0 | ClassLoader l = (ClassLoader) _loaders.get(i); |
57 | ||
58 | try | |
59 | { | |
60 | 0 | return l.loadClass(name); |
61 | } | |
62 | 0 | catch (ClassNotFoundException ex) |
63 | { | |
64 | // | |
65 | } | |
66 | } | |
67 | ||
68 | // Not found .. throw the first exception | |
69 | ||
70 | 0 | throw cnfex; |
71 | } | |
72 | } |