I think this is something I should address in Undertow Core (Servlet
already has io.undertow.servlet.api.ExceptionHandler), to allow you to
register a handler that will be called if an exception propagates
outside of the handler chain.
I think there are two options:
1) HttpServerExchange.setExceptionHandler(HttpHandler handler), and
then make the exception available as an attachment on the Exchange.
2) HttpServerExchange.setExceptionHandler(ExceptionHandler handler),
where ExceptionHandler has a single method that takes the exchange and
the exception.
Thoughts?
Stuart
On Wed, Feb 8, 2017 at 7:26 AM, Steve Hu <stevehu(a)gmail.com> wrote:
Hi Bill,
My exception handler is the first in the chain and it captures majority of
exceptions but this one. It is basically a try/catch block to wrap all
handler calls and you can find the source code at
https://github.com/networknt/light-java/blob/master/exception/src/main/ja...
I will try to dispatch in this handler first tonight and see if it works
based on your recommendation.
Hi Miere/Kim,
I am in the office now and will try both your approaches tonight on my home
computer.
Thanks a lot for your help.
Steve
On Tue, Feb 7, 2017 at 2:22 PM, Bill O'Neil <bill(a)dartalley.com> wrote:
>
> @Steve - If your exception handler is in the handler chain before calling
> dispatch then an exception is thrown it might not be handled properly (I
> think I ran into this). If you make sure you add an exception handler after
> calling dispatch that handles Throwable.class but before your logic, you
> should be able to catch all Exceptions. I'm not 100% positive here but this
> seemed to work for me.
>
>
> On Tue, Feb 7, 2017 at 1:48 PM, Kim Rasmussen <kr(a)asseco.dk> wrote:
>>
>> Hi,
>>
>> I have had success with adding the system property:
>>
>> -Dorg.jboss.logging.provider=slf4j
>>
>> A random search for this on the net revelated this page which does a good
>> job of explaining various ways of getting it working with WildFly - I myself
>> use Undertow embedded, so the system property is enough for me.
>>
>> /Kim
>>
>> 2017-02-07 11:55 GMT+01:00 Miere Teixeira <miere.teixeira(a)gmail.com>:
>>>
>>> Hi Steve,
>>>
>>> I've found myself on the same situation couple of years ago and to solve
>>> my problem I've configured the LoggerProvider to point to
>>> Slf4JLoggerProvider. Basically, this can be reproduced by declaring a
>>> META-INF/services/org.jboss.logging.LoggerProvider file with
>>> org.jboss.logging.Slf4jLoggerProvider as a value.
>>>
>>> I hope it helps.
>>>
>>> Cheers!
>>>
>>>
>>> On Mon, Feb 6, 2017 at 9:09 PM Steve Hu <stevehu(a)gmail.com> wrote:
>>>>
>>>> Hi,
>>>>
>>>> Undertow is using jboss logger to log errors and my application is
>>>> using slf4j/logback with logback.xml config file in the classpath with
>>>> Undertow core http server embedded. I handles most exceptions in my own
>>>> handlers but sometimes uncaught exceptions reaches Connectors class -
>>>> executeRootHandler method which logs the error and return 500 response
code.
>>>>
>>>> My first question: Is there a way to redirect the logs from Undertow to
>>>> logback logs and controlled by logback.xml? I've found some
discussions
>>>> about replacing logger in WildFly but I am using embedded Undertow core
>>>> only.
>>>>
>>>> Second question: When Connectors.executeRootHandler will be called? Is
>>>> it called when you have the following line in your handler?
>>>>
>>>> if (exchange.isInIoThread()) {
>>>> exchange.dispatch(this);
>>>> return;
>>>>
>>>> }
>>>>
>>>> Is there any way we can by pass this so that I can handle uncaught
>>>> exceptions in my ExceptionHandler in the handler chain?
>>>>
>>>> Thanks,
>>>>
>>>> Steve
>>>>
>>>>
>>>> _______________________________________________
>>>> undertow-dev mailing list
>>>> undertow-dev(a)lists.jboss.org
>>>>
https://lists.jboss.org/mailman/listinfo/undertow-dev
>>>
>>> --
>>>
>>> Miere Teixeira
>>>
>>>
>>> _______________________________________________
>>> undertow-dev mailing list
>>> undertow-dev(a)lists.jboss.org
>>>
https://lists.jboss.org/mailman/listinfo/undertow-dev
>>
>>
>>
>>
>> --
>> Med venlig hilsen / Best regards
>>
>> Kim Rasmussen
>> Partner, IT Architect
>>
>> Asseco Denmark A/S
>> Kronprinsessegade 54
>> DK-1306 Copenhagen K
>> Mobile: +45 26 16 40 23
>> Ph.: +45 33 36 46 60
>> Fax: +45 33 36 46 61
>>
>>
>> _______________________________________________
>> undertow-dev mailing list
>> undertow-dev(a)lists.jboss.org
>>
https://lists.jboss.org/mailman/listinfo/undertow-dev
>
>
>
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>
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