1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
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7  * published by the Free Software Foundation.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle in the LICENSE file that accompanied this code.
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11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
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19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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24  */
25 
26 package sun.misc;
27 
28 import java.net.URL;
29 import java.io.File;
30 import sun.net.www.ParseUtil;
31 
32 /**
33  * (Solaris) platform specific handling for file: URLs .
34  * urls must not contain a hostname in the authority field
35  * other than "localhost".
36  *
37  * This implementation could be updated to map such URLs
38  * on to /net/host/...
39  *
40  * @author      Michael McMahon
41  */
42 
43 public class FileURLMapper {
44 
45     URL url;
46     String path;
47 
FileURLMapper(URL url)48     public FileURLMapper (URL url) {
49         this.url = url;
50     }
51 
52     /**
53      * @returns the platform specific path corresponding to the URL
54      *  so long as the URL does not contain a hostname in the authority field.
55      */
56 
getPath()57     public String getPath () {
58         if (path != null) {
59             return path;
60         }
61         String host = url.getHost();
62         if (host == null || "".equals(host) || "localhost".equalsIgnoreCase (host)) {
63             path = url.getFile();
64             path = ParseUtil.decode (path);
65         }
66         return path;
67     }
68 
69     /**
70      * Checks whether the file identified by the URL exists.
71      */
exists()72     public boolean exists () {
73         String s = getPath ();
74         if (s == null) {
75             return false;
76         } else {
77             File f = new File (s);
78             return f.exists();
79         }
80     }
81 }
82