com.blade.kit.I18nKit Maven / Gradle / Ivy
package com.blade.kit;
import lombok.experimental.UtilityClass;
import java.text.MessageFormat;
import java.util.Locale;
import java.util.Map;
import java.util.ResourceBundle;
import java.util.concurrent.ConcurrentHashMap;
import java.util.regex.Pattern;
/**
* I18n
*
* file name format：i18n_{language}_{country}.properties
* for example:i18n_zh_CN.properties
* How to use
* i18n_zh_CN.properties:
* name=ccqy66
* ...
*
* public String getConfig(String key) {
* return I18nUtils.getInstance("i18n_zh_CN.properties").get(key);
* }
* or
* public String getConfig(String key) {
* return I18nUtils.getInstance(new Locale("zh","CN")).get(key);
* }
* @author ccqy66
* @Date: 2018/1/8
*/
@UtilityClass
public class I18nKit {
private static Map CACHE = new ConcurrentHashMap<>();
private static Pattern pattern = Pattern.compile("_");
public static synchronized ResourceHolder getInstance(String baseName){
return createResourceHolder(baseName,null);
}
public static synchronized ResourceHolder getInstance(Locale locale) {
return createResourceHolder(null,locale);
}
private static ResourceHolder createResourceHolder(String baseName,Locale locale) {
Tuple2 localeModel = toLocaleModel(baseName, locale);
ResourceHolder holder = CACHE.get(localeModel._1());
if (null != holder) {
return holder;
}
holder = new ResourceHolder(ResourceBundle.getBundle(localeModel._1(),localeModel._2()));
CACHE.putIfAbsent(localeModel._1(),holder);
return holder;
}
public static Tuple2 toLocaleModel(String baseName,Locale locale) {
if (StringKit.isBlank(baseName)) {
return new Tuple2<>("i18n_"+locale.getLanguage()+"_"+locale.getCountry(),locale);
}else {
String[] baseNames = pattern.split(baseName);
if (baseNames != null && baseNames.length == 3) {
return new Tuple2<>(baseName,new Locale(baseNames[1],baseNames[2]));
}
throw new IllegalArgumentException("baseName illegal,name format is :i18n_{language}_{country}.properties," +
"for example:i18n_zh_CN.properties");
}
}
public static class ResourceHolder {
private ResourceBundle resourceBundle;
public ResourceHolder(ResourceBundle resourceBundle) {
this.resourceBundle = resourceBundle;
}
public String get(String key) {
return resourceBundle.getString(key);
}
public Object getObject(String key) {
return resourceBundle.getObject(key);
}
public boolean containsKey(String key) {
return resourceBundle.containsKey(key);
}
public String format(String key,String ... params) {
return MessageFormat.format(resourceBundle.getString(key),params);
}
}
}