ResourceBundleUtil.java

package org.joget.commons.util;

import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.List;
import java.util.ArrayList;
import org.joget.commons.spring.model.ResourceBundleMessageDao;
import org.joget.commons.spring.model.ResourceBundleMessage;
import org.springframework.web.multipart.MultipartFile;

public class ResourceBundleUtil {
    
    private ResourceBundleMessageDao resourceBundleMessageDao;

    public void POFileImport(MultipartFile multipartFile, String locale) throws IOException {

        InputStream inputStream = multipartFile.getInputStream();
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream,"UTF-8"));

        List<ResourceBundleMessage> resourceBundleMessageList = new ArrayList<ResourceBundleMessage>();
        ResourceBundleMessage resourceBundleMessage;

        String line = null, key = null, original = null, translated =null;

        while ((line = bufferedReader.readLine()) != null)
        {
            if(line.equalsIgnoreCase("") || line.length() == 0)
                continue;

            if(line.length() > 12 && line.substring(0, 11).equalsIgnoreCase("\"Language: ")){
                //this is the locale
                locale = line.substring(11, line.length() -3);

            }else if(line.length() > 4 && locale != null && line.substring(0, 3).equalsIgnoreCase("#: ")){
                //this is the key
                key = line.substring(3, line.length());
                original = null;
                translated = null;

            }else if(line.length()> 8 && locale != null &&  key != null && line.substring(0,7).equalsIgnoreCase("msgid \"")){
                //this is the original string
                original = line.substring(7, line.length() -1);

            }else if(line.length() > 9 && locale != null &&  key != null && original != null && line.substring(0,8).equalsIgnoreCase("msgstr \"")){
                //this is the translated string
                translated = line.substring(8, line.length() -1);

            }

            if( key != null && original != null && translated != null){
                //if this is a entry, insert into the list
                resourceBundleMessage = new ResourceBundleMessage();
                resourceBundleMessage.setKey(key);
                resourceBundleMessage.setLocale(locale);
                resourceBundleMessage.setMessage(translated);
                resourceBundleMessageList.add(resourceBundleMessage);
                key = null;
                original = null;
                translated = null;
            }
        }
        bufferedReader.close();

        if(resourceBundleMessageList.size() > 0)
            bulkUpdatePO(resourceBundleMessageList);
    }

    protected void bulkUpdatePO(List<ResourceBundleMessage> resourceBundleMessageList){
        for( ResourceBundleMessage r : resourceBundleMessageList){
            getResourceBundleMessageDao().saveOrUpdate(r);
        }
    }

    public ResourceBundleMessageDao getResourceBundleMessageDao() {
        return resourceBundleMessageDao;
    }

    public void setResourceBundleMessageDao(ResourceBundleMessageDao resourceBundleMessageDao) {
        this.resourceBundleMessageDao = resourceBundleMessageDao;
    }

}