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Re: Clueless about error

by luke_saluti :: Rate this Message:

I read the content, by the way.
I didn't specify the attribute names that will be marshalled. Because when omitted, all of them become avaiable. But, nonethenless, I will enable only those that I really need, that will improve security and performance. The stackTraceElement is figured out by now. Thank you.

David Marginian-3 wrote:

Did you read the docs I sent? My guess is that you have added a converter
for Exception but not one for the fields on Exception (in your case
stackTrace).
http://directwebremoting.org/dwr/other/errors.html

At the very bottom of the "Exceptions" section this is covered.

"Clearly, permission will be needed to convert nested properties, which
includes the stack trace. By default, there is no permission to convert
StackTrace elements. It is a good idea to either expose only the information
that you wish to expose (better for a live environment):

<convert match="java.lang.Exception" converter="exception">

</convert>

Or allow stack traces too, (which can be useful in development):

<convert match="java.lang.StackTraceElement" converter="bean"/>

Aside from the fact that this is obviously insecure, it can also be quite
verbose, so it might be best to use this technique only when the browser and
web-server are close together in network terms."
- David

On Mon, Jun 15, 2009 at 2:03 PM, luke_saluti <luke_saluti@hotmail.com>wrote:

>
> Just to add:
>
> picture the following stack trace:
>
> NumberFormatException java.util.ArrayList
> SQLException lsf.com.teste.Class, line 50
>
> I found impossible to get the messages e lineNumbers that relate
> specifically to our company packages. Since the project deals with lots of
> developers, this approach has been proven useful to us.
> To get it we perform an iteration. Do you see any problems with that? Below
> goes the example
>
> function errorHandler(msg, ex)
> {
> if(ex.stackTrace)
> {
> var stack = ex.stackTrace;
> //looking for the specific lsf root package.
> for(var i = 0 ; i < stack.length && found = false ; i++)
> {
> if(stack[i].className.search(/lsf/) >= 0)
> {
> msgDWR.metodo = stack[i].methodName + "|" + stack[i].lineNumber;
> msgDWR.classe = stack[i].className;
> found = true;
> }
> }
> }
>
> //do something with msgDWR
> }
> --
> View this message in context:
> http://www.nabble.com/Clueless-about-error-tp24035958p24041880.html
> Sent from the DWR - Users mailing list archive at Nabble.com.
>
>
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