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Stripecube is an open source Java framework for Web Applications

There is a newer version: 1.30

package com.clickntap.smart;

import com.clickntap.developers.MessageSource;
import com.google.gson.Gson;
import org.apache.commons.io.FileUtils;
import org.springframework.context.NoSuchMessageException;

import java.util.Locale;

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()), MessageSource.class);
        }
    }

    public String getMessage(String code, Object[] args, Locale locale) throws NoSuchMessageException {
        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);
        }
    }
}