Tags
People
Badges
Help-
CORE FRAMEWORK
FEATURED COMPONENTS
-
RESOURCES
-
LEARN ZK
RESOURCES
Hi to everyone!
I'm trying to insert dynamic label for internationalization in my test application with ZK. I found the instructions on "The user guide" where the following instructions are contained:
Locale preferredLocale = ...; //decide the locale (from, say, database)
session.setAttribute("px_preferred_locale", preferredLocale);
My application contains something like the following after the user login (not in zscript, but in a pure Java class):
Sessions.getCurrent().setAttribute("px_preferred_locale",new Locale("en","EN"));
But it doesn't work because, while I'm expecting that now it reads the labels from the file i3-label_en.properties that I placed in the WEB-INF directory, it continues to read the label from the default i3-label.properties.
Any suggestions?
Thanks
Emanuele
The following worked for me:
1. In web.xml I defined a listener
<listener> <listener-class> mypackage.MyListener </listener-class> </listener>
2. Then in MyListener
public class BciOeListener implements HttpSessionListener {
public void sessionCreated(HttpSessionEvent e) {
HttpSession session = e.getSession();
// Forcing locale to portuguese
session.setAttribute("px_preferred_locale", new Locale("pt", "PT"));
}
public void sessionDestroyed(HttpSessionEvent e) {
// TODO:
}
}
Hope it help
Thank you sousa.
I think this solution may work if I want to set the language statically. But what happens if I want to set the language in a second moment (this is what I want to do), when the session has been already created?
I found this solution for my question...
I defined the following class:
*************************************************************
import java.io.File;
import java.net.URL;
import java.util.Locale;
import org.zkoss.mesg.Messages;
import org.zkoss.util.resource.LabelLocator;
/**
* Class which implements a locator for general labels.<br/>
* It must be registered for Labels with
* <i>Labels.register(org.zkoss.util.resource.LabelLocator)</i>
*/
public class GeneralLabelLocator implements LabelLocator {
private static final String MENU_FILE_NAME="i3-label";
private static final String MENU_FILE_SUFFIX=".properties";
private String context;
/**
* Constructor
*
* @param context wam context
*/
public GeneralLabelLocator(String context)
{
this.context = context;
}
/* (non-Javadoc)
* @see org.zkoss.util.resource.LabelLocator#locate(java.util.Locale)
*/
public URL locate(Locale locale) throws Exception
{
String menu_res_filename =(locale.getLanguage().equals(Locale.ITALIAN.getLanguage()))?MENU_FILE_NAME+MENU_FILE_SUFFIX:MENU_FILE_NAME+"_"+locale.getLanguage()+MENU_FILE_SUFFIX;
// real path
String menu_res_path = AppUtil.getRealPath("/WEB-INF/"+menu_res_filename);
// check if the file exists
File fmr = new File(menu_res_path);
if(!fmr.exists())
throw new Exception(...........);
// return url
return fmr.toURL();
}
}
*******************************************************************************
After that, I added something like the following line in the method invocated when the application is initialized:
Labels.register(new GeneralLabelLocator(context));
And it works!
Hope this will be useful for you!
Emanuele, It works good for me. But I added something that might be helpful for people who do not want to deal with files and real file-system location.
- Please note that all properties files must be encoded in UTF-8 to let ZK reads them properly
public class ZKLabelLocator implements org.zkoss.util.resource.LabelLocator
{
private static final char FS='/';
public URL locate(final Locale locale) throws Exception
{
final String country = locale.getLanguage();
final StringBuffer path = new StringBuffer().append("com").append(FS).append("trade4stas").append(FS).append("config").append(FS); //Set a relative path as you would do it for a resource bundle
if ("ru".equalsIgnoreCase(country)) //Choose a properties file. Do not forget about UTF-8 encoding
{
path.append("struts_messages_ru_RU.properties"); //Russian
}
else
{
path.append("struts_messages.properties"); //English
}
final URL finalURL=this.getClass().getClassLoader().getResource(path.toString());
return finalURL; //Here we go !
}
}
Asked: 2008-07-23 10:59:12 +0800
Seen: 639 times
Last updated: Mar 14 '10