package com.hb.proj.allconfig;

import java.util.Locale;

import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.web.servlet.LocaleResolver;
import org.springframework.web.servlet.i18n.SessionLocaleResolver;

/**
 * 多语言配置
 * @author cwen
 *
 */

@Configuration
@ConditionalOnProperty(prefix = "spring.messages",name = "active")
public class LocalConfig {
	
	//spring.messages.basename 配置国际化文件的名称，比如默认值是messages，多个值逗号分隔
	private static MessageSource messageSource;
	
	public LocalConfig(MessageSource messageSource) {
		LocalConfig.messageSource=messageSource;
	}
	
	public static String get(String msgKey,String defaultMsg) {
		return get(msgKey,defaultMsg,LocaleContextHolder.getLocale());
	}
	
	public static String get(String msgKey) {
		return get(msgKey,msgKey,LocaleContextHolder.getLocale());
	}
	
	public static String get(String msgKey,String defaultMessage,Locale locale)
    {
        try
        {
            return messageSource==null?defaultMessage:messageSource.getMessage(msgKey, null, defaultMessage,locale);
        }
        catch (Exception e)
        {
            return msgKey;
        }
    }

	/**
     * 默认解析器 其中locale表示默认语言  bean name必须是localeResolver，
     * 这样DispatcherServlet才能自动侦测到它，每DispatcherServlet只能注册一个区域解析器
     */
    @Bean
    public LocaleResolver localeResolver() {
        SessionLocaleResolver localeResolver = new SessionLocaleResolver();
        localeResolver.setDefaultLocale(Locale.CHINA);
        return localeResolver;
    }
}