File D:\maven-qcr-plugin-testsunitaires\qcr4java\jenkins-master\target\site\qc\core\src\main\java\hudson\util\MaskingClassLoader.java.html

1 /*
2 * The MIT License
3 *
4 * Copyright (c) 2004-2009, Sun Microsystems, Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 package hudson.util;
25
26 import java.util.ArrayList;
27 import java.util.Arrays;
28 import java.util.Collection;
29 import java.util.List;
30
31 /**
32 * {@link ClassLoader} that masks a specified set of classes
33 * from its parent class loader.
34 *
35 * <p>
36 * This code is used to create an isolated environment.
37 *
38 * @author Kohsuke Kawaguchi
39 */
40 public class MaskingClassLoader extends ClassLoader {
41 /**
42 * Prefix of the packages that should be hidden.
43 */
44 private List<String> masks;
45
46 public MaskingClassLoader(ClassLoader parent, String... masks) {
47 this(parent, Arrays.asList(masks));
48 }
49
50 public MaskingClassLoader(ClassLoader parent, Collection<String> masks) {
51 super(parent);
52 this.masks = new ArrayList<String>(masks);
53 }
54
55 @Override
56 protected synchronized Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
57 for (String mask : masks) {
58 if(name.startsWith(mask))
59 throw new ClassNotFoundException();
60 }
61
62 return super.loadClass(name, resolve);
63 }
64
65 public synchronized void add(String prefix) {
66 masks.add(prefix);
67 }
68 }
69