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package cn.featherfly.common.locale;
import java.text.MessageFormat;
import java.util.Locale;
import java.util.MissingResourceException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import cn.featherfly.common.lang.LangUtils;
import cn.featherfly.common.lang.ServiceLoaderUtils;
/**
*
* ResourceBundleUtils
*
*
* @author zhongj
*/
public final class ResourceBundleUtils {
private static final Logger LOGGER = LoggerFactory
.getLogger(ResourceBundleUtils.class);
private static final ResourceBundleFactory RESOURCE_BUNDLE_FACTORY = ServiceLoaderUtils
.load(ResourceBundleFactory.class, new JdkResourceBundleFactory());
private static final LocaleManager LOCALE_MANAGER = ServiceLoaderUtils
.load(LocaleManager.class, new DefaultLocaleManager());
/**
*
*/
private ResourceBundleUtils() {
super();
}
/**
* Bundle标识符
*/
public static final char RESOURCE_SIGN = '@';
/**
* key标识符
*/
public static final char KEY_SIGN = '#';
/**
*
* 获取ResourceBundleUtils在没有传入Locale时使用的默认Locale,默认Locale使用LocaleManager加载
*
*
* @return Locale
*/
public static Locale getLocale() {
return LOCALE_MANAGER.getLocale();
}
/**
*
* getBundle,use default locale
*
*
* @param baseName
* the base name of the resource bundle, a fully qualified class
* name
* @return ResourceBundle
*/
public static ResourceBundle getBundle(String baseName) {
return RESOURCE_BUNDLE_FACTORY.getBundle(baseName,
LOCALE_MANAGER.getLocale());
}
/**
*
* getBundle
*
*
* @param baseName
* the base name of the resource bundle, a fully qualified class
* name
* @param locale
* the locale for which a resource bundle is desired
* @return ResourceBundle
*/
public static ResourceBundle getBundle(String baseName, Locale locale) {
return RESOURCE_BUNDLE_FACTORY.getBundle(baseName, locale);
}
/**
* {@link java.util.ResourceBundle#getString(java.lang.String) getString}
*
* @see java.util.ResourceBundle#getString(java.lang.String) getString
* @param pattern
* 查找字符串的模式
* @return the string for the given key
*/
public static String getString(String pattern) {
return getString(pattern, null);
}
/**
* {@link java.util.ResourceBundle#getString(java.lang.String) getString}
*
* @see java.util.ResourceBundle#getString(java.lang.String) getString
* @param pattern
* 查找字符串的模式
* @param argus
* string format argus
* @return the string for the given key
*/
public static String getString(String pattern, Object[] argus) {
return getString(pattern, argus, LOCALE_MANAGER.getLocale());
}
/**
* {@link java.util.ResourceBundle#getString(java.lang.String) getString}
*
* @see java.util.ResourceBundle#getString(java.lang.String) getString
* @param pattern
* 查找字符串的模式
* @param argus
* string format argus
* @param locale
* locale
* @return the string for the given key
*/
public static String getString(String pattern, Object[] argus,
Locale locale) {
String baseName = null;
String key = null;
int keyIndex = pattern.indexOf(KEY_SIGN);
char firstChar = pattern.charAt(0);
if (firstChar == RESOURCE_SIGN && keyIndex != -1) {
baseName = pattern.substring(1, pattern.indexOf(KEY_SIGN));
key = pattern.substring(pattern.indexOf(KEY_SIGN) + 1);
return getStringFromBundle(pattern, baseName, key, argus, locale);
} else {
throw new IllegalArgumentException(
"argu code must start with @ and split bundle baseName and key with #, example: @bundleBaseName#key");
}
}
/**
* {@link java.util.ResourceBundle#getString(java.lang.String) getString}
*
* @see java.util.ResourceBundle#getString(java.lang.String) getString
* @param baseName
* bundle baseName
* @param key
* string key
* @param argus
* string format argus
* @param locale
* locale
* @return the string for the given key
*/
public static String getString(String baseName, String key, Object[] argus,
Locale locale) {
return getStringFromBundle(baseName, key, argus, locale);
}
/**
* {@link java.util.ResourceBundle#getString(java.lang.String) getString}
*
* @see java.util.ResourceBundle#getString(java.lang.String) getString
* @param type
* resolve for classType
* @param key
* string key
* @return the string for the given key
*/
public static String getString(Class type, String key) {
return getString(type, key, getLocale());
}
/**
* {@link java.util.ResourceBundle#getString(java.lang.String) getString}
*
* @see java.util.ResourceBundle#getString(java.lang.String) getString
* @param type
* resolve for classType
* @param key
* string key
* @param locale
* locale
* @return the string for the given key
*/
public static String getString(Class type, String key, Locale locale) {
return getString(type, key, new Object[] {}, locale);
}
/**
* {@link java.util.ResourceBundle#getString(java.lang.String) getString}
*
* @see java.util.ResourceBundle#getString(java.lang.String) getString
* @param type
* resolve for classType
* @param key
* string key
* @param argus
* string format argus
* @return the string for the given key
*/
public static String getString(Class type, String key, Object[] argus) {
return getString(type, key, argus, getLocale());
}
/**
* {@link java.util.ResourceBundle#getString(java.lang.String) getString}
*
* @see java.util.ResourceBundle#getString(java.lang.String) getString
* @param type
* resolve for classType
* @param key
* string key
* @param argus
* string format argus
* @param locale
* locale
* @return the string for the given key
*/
public static String getString(Class type, String key, Object[] argus,
Locale locale) {
try {
return getString(type.getName(), key,argus, locale);
} catch (MissingResourceException e) {
return getString(type.getSimpleName(), key,argus, locale);
}
}
private static String getStringFromBundle(String baseName,
String key, Object[] argus, Locale locale) {
if (locale == null) {
locale = getLocale();
}
String string = format(getBundle(baseName, locale).getString(key),
argus);
return string;
}
private static String getStringFromBundle(String code, String baseName,
String key, Object[] argus, Locale locale) {
if (locale == null) {
locale = getLocale();
}
String string = format(getBundle(baseName, locale).getString(key),
argus);
LOGGER.debug(
"match ResourceBundle pattern -> [{}] : baseName[{}] and key[{}], message -> {}",
new Object[] { code, baseName, key, string });
return string;
}
private static String format(String string, Object[] argus) {
if (LangUtils.isNotEmpty(argus)) {
return MessageFormat.format(string, argus);
}
return string;
}
}