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package org.crosswire.common.util; |
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import java.text.MessageFormat; |
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import java.util.HashMap; |
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import java.util.Locale; |
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import java.util.Map; |
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import java.util.MissingResourceException; |
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import java.util.ResourceBundle; |
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import org.crosswire.common.icu.NumberShaper; |
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import org.crosswire.jsword.internationalisation.LocaleProviderManager; |
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import org.slf4j.LoggerFactory; |
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public class MsgBase { |
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45 | 0 | protected MsgBase() { |
46 | 0 | this.shaper = new NumberShaper(); |
47 | 0 | } |
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public String lookup(String key, Object... params) { |
57 | 0 | String rawMessage = obtainString(key); |
58 | 0 | if (params.length == 0) { |
59 | 0 | return shaper.shape(rawMessage); |
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} |
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63 | 0 | rawMessage = rawMessage.replaceAll("'", "''"); |
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65 | 0 | return shaper.shape(MessageFormat.format(rawMessage, params)); |
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} |
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private String obtainString(String key) { |
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try { |
70 | 0 | if (getLocalisedResources() != null) { |
71 | 0 | return getLocalisedResources().getString(key); |
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} |
73 | 0 | } catch (MissingResourceException ex) { |
74 | 0 | log.error("Missing resource: Locale={} name={} package={}", LocaleProviderManager.getLocale(), key, getClass().getName()); |
75 | 0 | } |
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77 | 0 | return key; |
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} |
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private ResourceBundle getLocalisedResources() { |
81 | 0 | Class<? extends MsgBase> implementingClass = getClass(); |
82 | 0 | String className = implementingClass.getName(); |
83 | 0 | String shortClassName = ClassUtil.getShortClassName(className); |
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85 | 0 | Locale currentUserLocale = LocaleProviderManager.getLocale(); |
86 | 0 | Map<String, ResourceBundle> localisedResourceMap = getLazyLocalisedResourceMap(currentUserLocale); |
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88 | 0 | ResourceBundle resourceBundle = localisedResourceMap.get(className); |
89 | 0 | if (resourceBundle == null) { |
90 | 0 | resourceBundle = getResourceBundleForClass(implementingClass, className, shortClassName, currentUserLocale, localisedResourceMap); |
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} |
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94 | 0 | if (resourceBundle == null) { |
95 | 0 | resourceBundle = getResourceBundleForClass(implementingClass, className, shortClassName, Locale.ENGLISH, localisedResourceMap); |
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} |
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99 | 0 | if (resourceBundle == null) { |
100 | 0 | log.error("Missing resources: Locale={} class={}", currentUserLocale, className); |
101 | 0 | throw new MissingResourceException("Unable to find the language resources.", className, shortClassName); |
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} |
103 | 0 | return resourceBundle; |
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} |
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private ResourceBundle getResourceBundleForClass(Class<? extends MsgBase> implementingClass, String className, String shortClassName, Locale currentUserLocale, Map<String, ResourceBundle> localisedResourceMap) { |
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ResourceBundle resourceBundle; |
118 | 0 | synchronized (MsgBase.class) { |
119 | 0 | resourceBundle = localisedResourceMap.get(className); |
120 | 0 | if (resourceBundle == null) { |
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try { |
122 | 0 | resourceBundle = ResourceBundle.getBundle(shortClassName, currentUserLocale, CWClassLoader.instance(implementingClass)); |
123 | 0 | localisedResourceMap.put(className, resourceBundle); |
124 | 0 | } catch (MissingResourceException ex) { |
125 | 0 | log.warn("Assuming key is the default message {}", className); |
126 | 0 | } |
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} |
128 | 0 | } |
129 | 0 | return resourceBundle; |
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} |
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private Map<String, ResourceBundle> getLazyLocalisedResourceMap(Locale currentUserLocale) { |
139 | 0 | Map<String, ResourceBundle> localisedResourceMap = localeToResourceMap.get(currentUserLocale); |
140 | 0 | if (localisedResourceMap == null) { |
141 | 0 | synchronized (MsgBase.class) { |
142 | 0 | localisedResourceMap = localeToResourceMap.get(currentUserLocale); |
143 | 0 | if (localisedResourceMap == null) { |
144 | 0 | localisedResourceMap = new HashMap<String, ResourceBundle>(512); |
145 | 0 | localeToResourceMap.put(currentUserLocale, localisedResourceMap); |
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} |
147 | 0 | } |
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} |
149 | 0 | return localisedResourceMap; |
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} |
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152 | 0 | private static Map<Locale, Map<String, ResourceBundle>> localeToResourceMap = new HashMap<Locale, Map<String, ResourceBundle>>(); |
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private NumberShaper shaper; |
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160 | 0 | private static final org.slf4j.Logger log = LoggerFactory.getLogger(MsgBase.class); |
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} |