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Java Framework based on Spring Framework, Freemarker and Simplicity

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package com.clickntap.smart;

import java.util.Locale;

import org.apache.commons.io.FileUtils;
import org.springframework.context.NoSuchMessageException;

import com.clickntap.developers.MessageSource;
import com.clickntap.utils.ConstUtils;
import com.google.gson.Gson;

public class SmartJsonMessageSource extends SmartMessageSource {

  private boolean isJson;
  private MessageSource messageSource;

  public void start() throws Exception {
    isJson = true;
    if (messageResource.getFile().getName().endsWith(".properties")) {
      isJson = false;
      super.start();
    } else {
      messageSource = new Gson().fromJson(FileUtils.readFileToString(messageResource.getFile(), ConstUtils.UTF_8), MessageSource.class);
    }
  }

  public String getMessage(String code, Object[] args, Locale locale) throws NoSuchMessageException {
    locale = new Locale("en");
    if (isJson) {
      try {
        if (code.contains("[")) {
          int x1 = 0;
          int x2 = 0;
          while ((x1 = code.indexOf("[")) > 0) {
            x2 = x1;
            while (code.charAt(x2) != ']' && x2 < code.length())
              x2++;
            code = code.substring(0, x1) + code.substring(x2 + 1);
          }
        }
        String value = (String) messageSource.getLanguages().get(locale.getLanguage()).get(code);
        if (args[0] instanceof SmartContext)
          return scriptEngine.evalScript((SmartContext) args[0], value);
        return value;
      } catch (Exception e) {
        return code;
      }
    } else {
      return super.getMessage(code, args, locale);
    }
  }
}