Hi,
I upload a file in which I read information to fill a Collection of
ValidatorForm object. The file is stocked in a DynaValidatorForm, who is
called in the ActionMapping of the struts-config. The Collection of Form is
fill in the DispatchAction of the ActionMapping.
I validate the DynaValidatorForm but, after that, I want to validate each of
the ValidatorForm object in the Dispatch Action.
I use the validate method from the ValidatorForm. But, the method
call me a null pointer exception in the validate method when I do
"validatorForm".validate(mapping,request). The code where is the error in
the validate method is : super.validate(mapping,request). Somebody can give
me an idea to validate each ValidatorForm in the same dispatch action of the
ActionMapping without the exception. Sorry for my english, this isn't my
native language :0).
Any ideas are welcome !
Charles Gouin-Vallerand
This is a snippet of my code :
<action path="/createMasterFromFile"
type="plateinv.actions.plate.MPCreateAction"
name="plateCreationForm"
parameter="method"
validate="true"
input="tiles.plate.master.create.option">
<forward name="createFromFile"
path="tiles.plate.master.create.confirmationMP"/>
<forward name="createFromFileMPDP"
path="tiles.plate.master.create.confirmationMPDP"/>
</action>
public class MPCreateAction extends DispatchAction {
.......
public ActionForward createFromFile(ActionMapping mapping,ActionForm form,
HttpServletRequest request,
HttpServletResponse response) throws
Exception {
DynaValidatorForm pcf = (DynaValidatorForm) form;
//retrieve the file representation
FormFile file = (FormFile) pcf.get("fileName");
ReadMP rmp = new ReadMP(file.getInputStream());
Collection collMP = rmp.read(); //Collection of MasterPlateForm
Iterator it = collMP.iterator();
while(it.hasNext()) {
MasterPlateForm mpf = ( MasterPlateForm ) it.next();
Enumeration enum = request.getAttributeNames();
mpf.validate( mapping, request ); // Where I call the validate
method
}
return mapping.findForward("createFromFile");
}
}
public class MasterPlateForm extends ValidatorForm {
.....
public ActionErrors validate(ActionMapping mapping, HttpServletRequest
request) {
ActionMessages errors = super.validate(mapping,request); // This is
the line where the null pointer exception is called
String method = request.getParameter("method").toString();
if(method.equals("cancel")) {
return null;
} else {
return (ActionErrors) errors;
}
}
}
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