1 /* ====================================================================
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 2000 The Apache Software Foundation. All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * 3. The end-user documentation included with the redistribution,
20 * if any, must include the following acknowledgment:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowledgment may appear in the software itself,
24 * if and wherever such third-party acknowledgments normally appear.
25 *
26 * 4. The names "Apache" and "Apache Software Foundation" must
27 * not be used to endorse or promote products derived from this
28 * software without prior written permission. For written
29 * permission, please contact apache@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache",
32 * nor may "Apache" appear in their name, without prior written
33 * permission of the Apache Software Foundation.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>;.
53 *
54 * Portions of this software are based upon public domain software
55 * originally written at the National Center for Supercomputing Applications,
56 * University of Illinois, Urbana-Champaign.
57 */
58
59 package net.sourceforge.jane;
60
61 import net.sourceforge.jane.util.JavaLangUtils;
62
63 /***
64 * Locates artifacts using a class loader.
65 */
66 public class ClassLoaderArtifactLocator
67 implements ArtifactLocator
68 {
69
70 static final public String TYPE = "class-loader";
71
72 private ClassLoader classLoader;
73
74 /***
75 * Create a new <code>ClassLoaderArtifactLocator</code>.
76 */
77 public ClassLoaderArtifactLocator(ClassLoader aClassLoader)
78 {
79 classLoader = aClassLoader;
80 }
81
82 /***
83 * Returns the type of locator.
84 */
85 public String getType()
86 {
87 return TYPE;
88 }
89
90 /***
91 * Returns <code>true</code> if this locator can find the given class.
92 */
93 public boolean canFindClass(String className)
94 {
95 String classFile = JavaLangUtils.getRelativePathToClass(className);
96 return classLoader.getResource(classFile) != null;
97 }
98
99 /***
100 * Returns the class loader.
101 */
102 public ClassLoader getClassLoader()
103 {
104 return classLoader;
105 }
106
107 /***
108 * Returns an instance of this locator that locates artifacts using
109 * a system class loader.
110 */
111 static public ArtifactLocator getSystemInstance()
112 {
113 return new ClassLoaderArtifactLocator(ClassLoader.getSystemClassLoader());
114 }
115
116 /***
117 * Returns an instance of this locator that locates artifacts using
118 * the current thread's context class loader.
119 */
120 static public ArtifactLocator getContextInstance()
121 {
122 return new ClassLoaderArtifactLocator(Thread.currentThread().getContextClassLoader());
123 }
124
125 }
126
This page was automatically generated by Maven