[Engine-devel] Query regarding ValidationUtils#validateInputs

[Omer Frenkel]

----- Original Message -----

> From: "Shireesh Anjal" <sanjal at redhat.com>
> To: engine-devel at ovirt.org
> Sent: Thursday, April 12, 2012 9:35:25 AM
> Subject: [Engine-devel] Query regarding
> ValidationUtils#validateInputs

> Hi,

> This is regarding the following validation method we have in
> ValidationUtils:

> public static <T extends VdcActionParametersBase> ArrayList<String>
> validateInputs(List<Class<?>> validationGroupList, T parameters);

> I there any particular reason for supporting the validations only on
> objects of classes derived from VdcActionParametersBase? I guess
> this was done because this method is primarily intended to validate
> the action parameters passed to a BLL action, using the validation
> annotations on the parameter class. However I think this method can
> be useful for general use as well. e.g. I cannot add a "@Valid"
> annotation on a "list" or a "map" in a parameter class. So I need to
> iterate over the list/map, and validate each element inside the
> loop. The validation inside the loop can also utilize the above
> method if the restriction "extends VdcActionParametersBase" is
> removed. This will allow me to do the following in the canDoAction
> method:

> protected boolean canDoAction() {
> ...
> for(GlusterBrickEntity brick :
> getParameters().getGlusterVolume().getBricks()) {
> List<String> errors =
> ValidationUtils.validateInputs(getValidationGroups(), brick);
> if(errors != null) {
> for(String error : errors) {
> addCanDoActionMessage(error);
> }
> }
> }
> ...
> }

> Regards,
> Shireesh

> _______________________________________________
> Engine-devel mailing list
> Engine-devel at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/engine-devel

i don't think there is a reason to restrict only for VdcActionParametersBase, roy what do you think? 

also you can use here 
getReturnValue().getCanDoActionMessages().addAll(errors); 
instead of going over on all errors. 
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