Seam FacesMessages with its createFacesMessage method and i1

[fernando_jmt]

Hi everyone.

I just developing JSF converters and JSF validators and you are noticed that both of them have a way to add a FacesMessage when throwing the Exception (ConverterException and ValidatorException respectively).

I saw static method FacesMessages.createFacesMessage(..) which returns a FacesMessage, but that mehod does not works for me, because I wanna show an internationalized message (using messages.properties).

So, what do you think to add a new method which allows us to get a FacesMessage using a resource bundle key?

Something like:

public static FacesMessage createFacesMessageFromResourceBundle(Severity severity, String key, Object... params)

What do you think?

or is there another way can I get a FacesMessage in the situation I describe above?

[pmuir]

You can use:

FacesMessages.instance().addFromResourceBundle(getClientId(facesContext), severity, key, params);

[fernando_jmt]

"petemuir" wrote:
You can use:

FacesMessages.instance().addFromResourceBundle(getClientId(facesContext), severity, key, params);

I tried what you suggest me before posting the message here. But it does not work.

This because the ValidatorException has this signature when creating it:

public ValidatorException(javax.faces.application.FacesMessage facesMessage)

So, I need a FacesMessage in order to use it for the ValidatorEception constructor.

This is was I tried:

 FacesMessages.instance().addFromResourceBundle(uiComponent.getId(), FacesMessage.SEVERITY_ERROR, MESSAGE_KEY, messageParams);

 throw new ValidatorException(new FacesMessage());

But adding above code does not work. It validates, but no message appear in the page. So, FacesMessages.instance().addFromResourceBundle() does not work in this situation.

I also tried this and this works:

FacesMessage message =FacesMessages.createFacesMessage(FacesMessage.SEVERITY_ERROR, "The value (#0) is not equal with value of #1", messageParams);

throw new ValidatorException(message);

But in the above code the problem is that there is no way to create a FacesMessage from resource bundle. This is the reason because I suggest to add the method I mentioned before.


Is there something I am missing?

There is another way?

Thanks in advance.

[pmuir]

Seems like a good idea. Please put it in JIRA

[fernando_jmt]

JIRA issue reported.

http://jira.jboss.org/jira/browse/JBSEAM-818

[cdupont]

My solution:

public void validate(FacesContext context, UIComponent cmp, Object value)
throws ValidatorException
{
if (ValidationUtils.validateEmail((String) value))
{
MemberManager memberManager = (MemberManager) Component
.getInstance("memberManager");

if (!memberManager.isUsernameAvailable((String) value))
{
String msg = ResourceBundle.instance().getString(
"validation.member.email.taken");

FacesMessage errorMessage = new FacesMessage();
errorMessage.setDetail(msg);
errorMessage.setSummary(msg);
errorMessage.setSeverity(FacesMessage.SEVERITY_ERROR);

throw new ValidatorException(errorMessage);
}
}
else
{
String msg = ResourceBundle.instance().getString(
"validation.member.email.invalid");

FacesMessage errorMessage = new FacesMessage();
errorMessage.setDetail(msg);
errorMessage.setSummary(msg);
errorMessage.setSeverity(FacesMessage.SEVERITY_ERROR);

throw new ValidatorException(errorMessage);
}
}
}