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Java > Open Source Codes > com > jeantessier > classreader > DirectoryExplorer


1 /*
2  * Copyright (c) 2001-2005, Jean Tessier
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * * Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  *
12  * * Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in the
14  * documentation and/or other materials provided with the distribution.
15  *
16  * * Neither the name of Jean Tessier nor the names of his contributors
17  * may be used to endorse or promote products derived from this software
18  * without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32
33 package com.jeantessier.classreader;
34
35 import java.io.*;
36 import java.util.*;
37
38 public class DirectoryExplorer {
39     private Collection collection = new LinkedList();
40
41     public DirectoryExplorer(String JavaDoc[] filenames) throws IOException {
42         for (int i=0; i<filenames.length; i++) {
43             explore(new File(filenames[i]));
44         }
45     }
46
47     public DirectoryExplorer(Collection filenames) throws IOException {
48         Iterator i = filenames.iterator();
49         while (i.hasNext()) {
50             explore(new File(i.next().toString()));
51         }
52     }
53
54     public DirectoryExplorer(String JavaDoc filename) throws IOException {
55         this(new File(filename));
56     }
57
58     public DirectoryExplorer(File file) throws IOException {
59         explore(file);
60     }
61
62     private void explore(File file) throws IOException {
63         if (file.exists()) {
64             collection.add(file);
65             
66             if (file.isDirectory()) {
67                 exploreDirectory(file);
68             }
69         }
70     }
71
72     private void exploreDirectory(File dir) throws IOException {
73         String JavaDoc[] entries = dir.list();
74         for (int i=0; i<entries.length; i++) {
75             explore(new File(dir, entries[i]));
76         }
77     }
78
79     public Collection getCollection() {
80         return collection;
81     }
82 }
83
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