| 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 |