[seam-issues] [JBoss JIRA] Issue Comment Edited: (SEAMCATCH-4) Include the ability to filter stack traces
Jason Porter (JIRA)
jira-events at lists.jboss.org
Sat Feb 19 14:27:14 EST 2011
[ https://issues.jboss.org/browse/SEAMCATCH-4?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12569367#comment-12569367 ]
Jason Porter edited comment on SEAMCATCH-4 at 2/19/11 2:27 PM:
---------------------------------------------------------------
Here are some examples.
1. Drop all frames in NoDefClassFoundError
{code:java}
public class NoClassFoundStackFrameFilter implements ExceptionStackFrameFilter<NoClassDefFoundError>
{
@Override
public StackFrameFilterResult process(StackFrame frame)
{
return StackFrameFilterResult.BREAK;
}
}
{code}
2. Truncate frames after a threshold (though no indication we did that we did)
{code:java}
public class TruncateExceptionStackFilter implements ExceptionStackFrameFilter<Throwable>
{
@Override
public StackFrameFilterResult process(StackFrame frame)
{
if (frame.getIterationStatus().getIndex() >= 20)
{
return StackFrameFilterResult.DROP_REMAINING;
}
return StackFrameFilterResult.INCLUDE;
}
}
{code}
3. Remove noise in between fire event and invoke observer
{code:java}
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");
}
}
{code}
4. Flatten reflections invoke into a single line
{code:java}
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;
}
}
{code}
was (Author: dan.j.allen):
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: 3.0.0.CR1
>
>
> Catch should draw from ideas such as:
> - http://www.docjar.org/html/api/org/apache/commons/lang/exception/NestableDelegate.java.html
> - http://stackoverflow.com/questions/2504647/bash-how-to-filter-java-exception-info
> - http://squirrelsewer.blogspot.com/2010/03/filter-your-stack-traces.html
> - http://pastebin.com/p8aCSeuu
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