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https://issues.jboss.org/browse/SEAMCATCH-4?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12569367#comment-12569367
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Dan Allen commented on SEAMCATCH-4:
-----------------------------------
Here are some examples.
1. Drop all frames in NoDefClassFoundError
public class NoClassFoundStackFrameFilter implements
ExceptionStackFrameFilter<NoClassDefFoundError>
{
@Override
public StackFrameFilterResult process(StackFrame frame)
{
return StackFrameFilterResult.BREAK;
}
}
2. Truncate frames after a threshold (though no indication we did that we did)
public class TruncateExceptionStackFilter implements
ExceptionStackFrameFilter<Throwable>
{
@Override
public StackFrameFilterResult process(StackFrame frame)
{
if (frame.getIterationStatus().getIndex() >= 20)
{
return StackFrameFilterResult.DROP_REMAINING;
}
return StackFrameFilterResult.INCLUDE;
}
}
3. Remove noise in between fire event and invoke observer
public class InvokeObserverStackFrameFilter implements
ExceptionStackFrameFilter<Throwable>
{
@Override
public StackFrameFilterResult process(StackFrame frame)
{
StackTraceElement el = frame.getStackTraceElement();
if (frame.isMarkSet("event.firing"))
{
if (isReflectionInvoke(el))
{
frame.clearMark("event.firing");
return StackFrameFilterResult.DROP;
}
else
{
return StackFrameFilterResult.DROP;
}
}
else if (el.getClassName().contains(".BeanManager") &&
el.getMethodName().equals("fireEvent"))
{
frame.mark("event.firing");
return StackFrameFilterResult.INCLUDE;
}
return StackFrameFilterResult.INCLUDE;
}
private boolean isReflectionInvoke(StackTraceElement candidate)
{
return candidate.getClassName().equals(Method.class.getName())
&& candidate.getMethodName().equals("invoke");
}
}
4. Flatten reflections invoke into a single line
public class ReflectionInvokeStackFrameFilter implements
ExceptionStackFrameFilter<Throwable>
{
@Override
public StackFrameFilterResult process(StackFrame frame)
{
if (frame.isMarkSet("reflections.invoke"))
{
if (frame.getStackTraceElement().getMethodName().startsWith("invoke")
||
frame.getStackTraceElement().getClassName().contains("_WeldClientProxy"))
{
return StackFrameFilterResult.DROP;
}
else
{
frame.clearMark("reflections.invoke");
}
}
return StackFrameFilterResult.INCLUDE;
}
}
> Include the ability to filter stack traces
> ------------------------------------------
>
> Key: SEAMCATCH-4
> URL: https://issues.jboss.org/browse/SEAMCATCH-4
> Project: Seam Catch
> Issue Type: Feature Request
> Reporter: Jason Porter
> Assignee: Jason Porter
> Fix For: Alpha3
>
>
> Catch should support ideas such as
> http://stackoverflow.com/questions/2504647/bash-how-to-filter-java-exception-info
> http://squirrelsewer.blogspot.com/2010/03/filter-your-stack-traces.html and
> http://pastebin.com/p8aCSeuu
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