Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
SubSettings |
|
| 1.6;1.6 |
1 | /* | |
2 | * Copyright (C) 1998-2000 Semiotek Inc. All Rights Reserved. | |
3 | * | |
4 | * Redistribution and use in source and binary forms, with or without | |
5 | * modification, are permitted under the terms of either of the following | |
6 | * Open Source licenses: | |
7 | * | |
8 | * The GNU General Public License, version 2, or any later version, as | |
9 | * published by the Free Software Foundation | |
10 | * (http://www.fsf.org/copyleft/gpl.html); | |
11 | * | |
12 | * or | |
13 | * | |
14 | * The Semiotek Public License (http://webmacro.org/LICENSE.) | |
15 | * | |
16 | * This software is provided "as is", with NO WARRANTY, not even the | |
17 | * implied warranties of fitness to purpose, or merchantability. You | |
18 | * assume all risks and liabilities associated with its use. | |
19 | * | |
20 | * See www.webmacro.org for more information on the WebMacro project. | |
21 | */ | |
22 | ||
23 | ||
24 | package org.webmacro.util; | |
25 | ||
26 | import java.util.ArrayList; | |
27 | ||
28 | /** | |
29 | * Models the subsettings of a setting. | |
30 | */ | |
31 | public class SubSettings extends Settings | |
32 | { | |
33 | ||
34 | private final Settings _settings; | |
35 | private final String _prefix; | |
36 | ||
37 | /** | |
38 | * Get a subset of the settings in this Settings. The | |
39 | * returned Settings object will be just those settings | |
40 | * beginning with the supplied prefix, with the | |
41 | * prefix chopped off. So if the Settings had | |
42 | * a setting "LogLevel.foo" then the settings file | |
43 | * returned by getSubSettings("LogLevel") would contain | |
44 | * the key "foo". | |
45 | */ | |
46 | public SubSettings (Settings settings, String prefix) | |
47 | { | |
48 | 84 | super(); |
49 | 84 | _settings = settings; |
50 | 84 | _prefix = (prefix == null) ? "" : prefix + "."; |
51 | 84 | } |
52 | ||
53 | public String[] getKeys () | |
54 | { | |
55 | 60 | String[] underlyingKeys = _settings.getKeys(); |
56 | 60 | ArrayList al = new ArrayList(underlyingKeys.length); |
57 | 6060 | for (int i = 0; i < underlyingKeys.length; i++) |
58 | { | |
59 | 6000 | String key = underlyingKeys[i]; |
60 | 6000 | if (key.startsWith(_prefix)) |
61 | 372 | al.add(key.substring(_prefix.length())); |
62 | } | |
63 | 60 | return (String[]) al.toArray(stringArray); |
64 | } | |
65 | ||
66 | /** | |
67 | * Prefix the key for use with the underlying Settings | |
68 | */ | |
69 | private String prefix (String key) | |
70 | { | |
71 | 504 | return _prefix + key; |
72 | } | |
73 | ||
74 | /** | |
75 | * Find out if a setting is defined | |
76 | */ | |
77 | public boolean containsKey (String key) | |
78 | { | |
79 | 96 | return _settings.containsKey(prefix(key)); |
80 | } | |
81 | ||
82 | /** | |
83 | * Get a setting | |
84 | */ | |
85 | public String getSetting (String key) | |
86 | { | |
87 | 408 | return _settings.getSetting(prefix(key)); |
88 | } | |
89 | } | |
90 |