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 java.io.File;
62 import java.io.InputStream;
63 import java.io.IOException;
64 import java.util.Iterator;
65 import java.util.LinkedList;
66 import java.util.List;
67 import java.util.StringTokenizer;
68
69 /***
70 * A composite of {@link ArtifactPath}s.
71 *
72 * @author Calvin Yu
73 */
74 public class CompositeArtifactPath extends ArtifactPath
75 {
76
77 private List paths;
78
79 /***
80 * Create a new <code>CompositeArtifactPath</code>.
81 */
82 public CompositeArtifactPath()
83 {
84 super("");
85 paths = new LinkedList();
86 }
87
88 /***
89 * Create a new <code>CompositeArtifactPath</code>.
90 */
91 public CompositeArtifactPath(String aPath)
92 throws InvalidPathException
93 {
94 super(aPath);
95 paths = new LinkedList();
96 if (path != null) {
97 StringTokenizer strtok = new StringTokenizer(path, File.pathSeparator);
98 while (strtok.hasMoreTokens()) {
99 String token = strtok.nextToken();
100 addPath(ArtifactPath.resolvePath(token));
101 }
102 }
103 }
104
105 /***
106 * Returns the path to the given artifact.
107 */
108 public String getPathToArtifact(String name)
109 {
110 for (Iterator i = paths.iterator(); i.hasNext();) {
111 ArtifactPath path = (ArtifactPath) i.next();
112 String pathToArtifact = path.getPathToArtifact(name);
113 if (pathToArtifact != null) {
114 return pathToArtifact;
115 }
116 }
117 return null;
118 }
119
120 /***
121 * Find the specified artifact.
122 */
123 public InputStream findArtifact(String name)
124 throws IOException
125 {
126 for (Iterator i = paths.iterator(); i.hasNext();) {
127 ArtifactPath path = (ArtifactPath) i.next();
128 if (path.getPathToArtifact(name) != null) {
129 return path.findArtifact(name);
130 }
131 }
132 return null;
133 }
134
135 /***
136 * Add a path.
137 */
138 public void addPath(ArtifactPath path)
139 {
140 paths.add(path);
141 }
142
143 }
144
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