1 /*
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 2000-2003 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, if
20 * any, must include the following acknowlegement:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowlegement may appear in the software itself,
24 * if and wherever such third-party acknowlegements normally appear.
25 *
26 * 4. The names "Ant" and "Apache Software
27 * Foundation" must not be used to endorse or promote products derived
28 * from this 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 names without prior written
33 * permission of the Apache Group.
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
55 package attrib4j.utensil;
56
57 import java.io.File;
58 import java.util.Vector;
59
60 /***
61 * <b>Modifed for Attrib4j</b> to only take the utility method to convert
62 * path names to the correct platform representation.
63 *
64 * This object represents a path as used by CLASSPATH or PATH
65 * environment variable.
66 * <p>
67 * <code>
68 * <sometask><br>
69 * <somepath><br>
70 * <pathelement location="/path/to/file.jar" /><br>
71 * <pathelement path="/path/to/file2.jar:/path/to/class2;/path/to/class3" /><br>
72 * <pathelement location="/path/to/file3.jar" /><br>
73 * <pathelement location="/path/to/file4.jar" /><br>
74 * </somepath><br>
75 * </sometask><br>
76 * </code>
77 * <p>
78 * The object implemention <code>sometask</code> must provide a method called
79 * <code>createSomepath</code> which returns an instance of <code>Path</code>.
80 * Nested path definitions are handled by the Path object and must be labeled
81 * <code>pathelement</code>.<p>
82 *
83 * The path element takes a parameter <code>path</code> which will be parsed
84 * and split into single elements. It will usually be used
85 * to define a path from an environment variable.
86 *
87 * @author Thomas.Haas@softwired-inc.com
88 * @author Stefan Bodewig
89 */
90 public class PathUtil {
91
92 /***
93 * Splits a PATH (with : or ; as separators) into its parts.
94 */
95 public static String[] translatePath(String source) {
96 final Vector result = new Vector();
97 if (source == null) {
98 return new String[0];
99 }
100
101 PathTokenizer tok = new PathTokenizer(source);
102 StringBuffer element = new StringBuffer();
103 while (tok.hasMoreTokens()) {
104 String pathElement = tok.nextToken();
105 element.append(pathElement);
106 for (int i = 0; i < element.length(); i++) {
107 translateFileSep(element, i);
108 }
109 result.addElement(element.toString());
110 element = new StringBuffer();
111 }
112 String[] res = new String[result.size()];
113 result.copyInto(res);
114 return res;
115 }
116
117 /***
118 * Translates all occurrences of / or \ to correct separator of the
119 * current platform and returns whether it had to do any
120 * replacements.
121 */
122 protected static boolean translateFileSep(StringBuffer buffer, int pos) {
123 if (buffer.charAt(pos) == '/' || buffer.charAt(pos) == '//') {
124 buffer.setCharAt(pos, File.separatorChar);
125 return true;
126 }
127 return false;
128 }
129 }
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