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a3b510ab NR |
1 | package com.googlecode.lanterna.bundle; |
2 | ||
3 | import java.security.PrivilegedAction; | |
4 | import java.text.MessageFormat; | |
5 | import java.util.HashMap; | |
6 | import java.util.Locale; | |
7 | import java.util.Map; | |
8 | import java.util.ResourceBundle; | |
9 | ||
10 | /** | |
11 | * This class permits to deal easily with bundles. | |
12 | * @author silveryocha | |
13 | */ | |
14 | public abstract class BundleLocator { | |
15 | ||
16 | private final String bundleName; | |
17 | private static final ClassLoader loader = BundleLocator.class.getClassLoader(); | |
18 | ||
19 | /** | |
20 | * Hidden constructor. | |
21 | * @param bundleName the name of the bundle. | |
22 | */ | |
23 | protected BundleLocator(final String bundleName) { | |
24 | this.bundleName = bundleName; | |
25 | } | |
26 | ||
27 | /** | |
28 | * Method that centralizes the way to get the value associated to a bundle key. | |
29 | * @param locale the locale. | |
30 | * @param key the key searched for. | |
31 | * @param parameters the parameters to apply to the value associated to the key. | |
32 | * @return the formatted value associated to the given key. Empty string if no value exists for | |
33 | * the given key. | |
34 | */ | |
35 | protected String getBundleKeyValue(Locale locale, String key, Object... parameters) { | |
36 | String value = null; | |
37 | try { | |
38 | value = getBundle(locale).getString(key); | |
39 | } catch (Exception ignore) { | |
40 | } | |
41 | return value != null ? MessageFormat.format(value, parameters) : null; | |
42 | } | |
43 | ||
44 | /** | |
45 | * Gets the right bundle.<br/> | |
46 | * A cache is handled as well as the concurrent accesses. | |
47 | * @param locale the locale. | |
48 | * @return the instance of the bundle. | |
49 | */ | |
50 | private ResourceBundle getBundle(Locale locale) { | |
51 | return ResourceBundle.getBundle(bundleName, locale, loader); | |
52 | } | |
53 | } |