PrimeFaces Galleria caption internationalization in JSF [duplicate] - jsf

Question

I would like to be able to retrieve a string from a message bundle from inside a JSF 2 managed bean. This would be done in situations where the string is used as the summary or details parameter in a FacesMessage or as the message in a thrown exception.
I want to make sure that the managed bean loads the correct message bundle for the user's locale. It is not clear to me how to do this from a managed bean using JSF API calls.
My configuration is:
Using Tomcat 7 as the container so the solution cannot depend on API calls that only work in a full application server container
Using the JSF 2 reference implementation (Mojarra)
NOT using any libraries that allow CDI
NOTE: I did see this similar question, but it depends on features that are unavailable in my configuration
EDIT: I made a mistake in my original question. What I meant to ask was "How can I get a resource bundle string from inside a managed bean"? BalusC gave me the correct answer for what I asked. The solution for what I actually meant to ask is very similar:
public static String getResourceBundleString(
String resourceBundleName,
String resourceBundleKey)
throws MissingResourceException {
FacesContext facesContext = FacesContext.getCurrentInstance();
ResourceBundle bundle =
facesContext.getApplication().getResourceBundle(
facesContext, resourceBundleName);
return bundle.getString(resourceBundleKey);
}
Also, here is a link to another question that explains the difference between "message" bundles and "resource" bundles.

Answer 1

You can get the full qualified bundle name of <message-bundle> by Application#getMessageBundle(). You can get the current locale by UIViewRoot#getLocale(). You can get a ResourceBundle out of a full qualified bundle
name and the locale by ResourceBundle#getBundle().
So, summarized:
FacesContext facesContext = FacesContext.getCurrentInstance();
String messageBundleName = facesContext.getApplication().getMessageBundle();
Locale locale = facesContext.getViewRoot().getLocale();
ResourceBundle bundle = ResourceBundle.getBundle(messageBundleName, locale);
// ...
Update: as per the mistake in the question, you actually want to get the bundle which is identified by the <base-name> of <resource-bundle>. This is unfortunately not directly available by a standard JSF API. You've either to hardcode the same base name in the code and substitute the messageBundleName in the above example with it, or to inject it as a managed property on <var> in a request scoped bean:
#ManagedProperty("#{msg}")
private ResourceBundle bundle; // +setter

Answer 2

FacesContext context = FacesContext.getCurrentInstance();
ResourceBundle bundle = context.getApplication().getResourceBundle(context, "msg");
String message = bundle.getString("key");
here is key is property name which you want to access from properties file .
message = This is "message"
This entry is from messages.properites file. and "message" is "key" .

Answer 3

There are two ways to get String resource bundle in managed bean, using baseName or varName (see definition of each one below):
Using varName:
varName: is the String representing the <var></var> in <resource-bundle>
FacesContext context = FacesContext.getCurrentInstance();
Application app = context.getApplication();
ResourceBundle bundle = app.getResourceBundle(context, varName);
String msg = bundle.getString("key");
Using baseName:
baseName: The fully qualified name of the resource bundle (<base-name> in <resource-bundle>).
FacesContext context = FacesContext.getCurrentInstance();
Locale locale = context .getViewRoot().getLocale();
ClassLoader loader = Thread.currentThread().getContextClassLoader();
ResourceBundle bundle = ResourceBundle.getBundle(baseName, locale, loader);
String msg = bundle.getString("key");