I am developing an application in which I am using log4j.
In that am getting an exception com.opensymphony.xwork2.interceptor.ParametersInterceptor. But i don't want this particular exception to be logged.Is it possible to configure the same using log4j ??
Related
I have a java project written using spring-cloud-function and deployed in aws-lambda.
I am trying to return a custom exception with some fields in the exception message body, something like"
{
reason: <exception reason>
code: <error code>
<some other fields>
}
#ExceptionHandler, that is generally used in spring boot doesn't seem to work here.
I can return the exception in the required format by creating a class for building the exception message in required format but in that case the error code will always be 200 since it will not be an exception object per se. Instead it will be my custom error object.
Is there a way I can set this up so that the above required format of exception object is returned and correct error code can be returned too?
Thanks in advance
First, the exception has nothing to do with Spring Boot. It's part of spring-web, so yes it would not work here since s-c-function is a general purpose framework, where the same function could be deployed and triggered via web, streaming, aws-lambda etc. .
Now, yes we had a problem returning JSON error (as you show) or object that represents the same, but that was fixed. So please update s-c-function to 3.2.3.
In .NET Core you can easily add a detailed exception page for developers:
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
This then gives you the exception details:
However, I'd like to include additional exception detail - for instance the SQL query attempted when the exception is a SqlException.
I can write my own exception handler from scratch with app.UseExceptionHandler, but I'd rather extend the built-in error. For instance by adding a tab to the results including additional info.
Is it possible to extend the information on this exception page?
What is the concept behind exception handling in Spring Integration or any other EAI framework: Are they treated as a Message?
Lets say that a JMS timeout exception was thrown from jms-outbound-gateway. Now it has to be moved all the way upto the parent custom gateway addEmployeeGateway which defines a method called addEmployee which throws a custom exception called SystemDownException. These two components are connected through request and reply channels and thats the only medium of communication. Does it mean that Exceptions are also treated as messages?
Also, if i had to map the JMS timeout exception to my custom exception SystemDownException and rethrow the SystemDownException how and where would i achieve this. I dont want to use an errorchannel.
The general mechanism for handling exceptions is an error-channel on the inbound (or some intermediate) endpoint; the ErrorMessage payload has failedMessage and cause properties.
The mechanism is similar to try {...} catch {...} in Java.
I dont want to use an errorchannel.
Alternatively, you can configure a custom request handler advice on the JMS outbound gateway; there, you can do whatever you want, including throwing your SystemDownException after catching an exception on callback.execute().
I have a problem in catching the exceptions in my spring integration application.
Flow of operations in my application.
Http:inbound gateway which receives the request (error-channel defined to my custom error channel)
Service Activator for basic validations (Exceptions which are thrown from here are handled by error-channel defined on the GW)
splitter
Aggregator
Exceptions on my splitter or Aggregator are not handled by my error channel. why?
Steps taken:
I added a chain and included a header enricher and specified an error channel just before the splitter.
After this, any exception on my splitter is handled by my error channel mentioned in the header enricher.
<chain input-channel="invitations">
<header-enricher>
<error-channel ref="failed-invitations" />
</header-enricher>
<int:splitter ref="payloadSplitter" />
</chain>
But the same doesnt work when do the same on my Aggregator. why?
Whenever there is an exception in my code, it retries and gets executed more than one time. why?
I have a "errorChannel" defined which logs the exceptions. it doesnt work.
I know the thread is too old, but I was also facing a similar issue and found I declared error-channel in header-enricher but not provide 'overwrite="true"' as a parameter. And after providing 'overwrite="true"'it is working as needed. I am surprised why spring integration does not provide an overwrite=true by default.
Let us know this is what solution you did in your old code? So everyone can find out the solution for such a scenario.
I have just implemented exception handling for a unique-constraint of a JPA entity. It is working as I want it to, but when triggered dumps the handled exceptions to the container logfile.
A JPA entity is managed by a SLSB (Service Façade). The Service Façade is called from another SLSB, which provides remoting capabilities based on JAX-RS.
In the Service Façade, the EntityManager operations are wrapped in a try-catch-block, detecting the cause of the unique-constraint-violation. It then throws a custom checked ApplicationException.
The REST-Bean catches the ApplicationException and throws a custom unchecked BadRequestException.
An ExceptionMapper outputs the BadRequestException to the remote client.
This is all working well. The part that I don't understand is: the (handled) exceptions get logged in the container's logfile (complete with a long stacktrace):
[#|2010-09-29T18:49:39.185+0200|WARNING|glassfish3.0.1|org.eclipse.persistence.session.file:/Users/hank/NetBeansProjects/CoreServer/build/classes/_coreServerPersistenceUnit|_ThreadID=30;_ThreadName=Thread-1;|
Local Exception Stack:
Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.0.1.v20100213-r6600): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry....
....
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry....
and from throwing the BadRequestException:
[#|2010-09-29T18:49:39.336+0200|WARNING|glassfish3.0.1|javax.enterprise.system.container.ejb.com.sun.ejb.containers|_ThreadID=30;_ThreadName=Thread-1;|A system exception occurred during an invocation on EJB ShopperResource method public javax.ws.rs.core.Response mvs.gateway.ShopperResource.create(javax.xml.bind.JAXBElement)
javax.ejb.EJBException
at com.sun.ejb.containers.BaseContainer.processSystemException(BaseContainer.java:5119)
....
Caused by: mvs.api.exception.BadRequestException: mvs.api.exception.MvsCause: Field 'MSISDN' must be unique!
Is this how it should be? I thought since I handle the exceptions, they wouldn't be dumped to the log?
The exceptions are logged because you have exception logging enabled.
Exceptions get logged by default when your log level is WARNING or greater. If you set your log level to SEVERE or OFF then they will not be logged.
i.e.
"eclipselink.logging.level"="SEVERE"
You can also set the "eclipselink.logging.exceptions"="false" property to disable just exception logging.
See,
http://wiki.eclipse.org/EclipseLink/Examples/JPA/Logging
It's the database layer that does the logging of the exceptions. The time you catch them they are already written to the log.