An
xquery signature provided by BofA WILL work properly with CA’s diagnostician,
and vica versa. But, CA’s editor will not be able to parse/interpret the
signature correctly.
Maybe that’s Ok?
Fyi
– a generic XQuery editor isn’t going to help much. It won’t understand that “3”
is a frequency threshold and “30” is a time interval.
The
xquery was simplified to get my point across.
From: Isaiadis, Stavros
[mailto:stavros.isaiadis@baml.com]
Sent: Wednesday, May 25, 2011 4:42 AM
To: Vaught, Jeffrey A; saf@lists.oasis-open.org
Subject: RE: Syndrome composition - interpreting an xquery signature in
an editor
Hi Jeff,
The editor thing is
particularly difficult; the possibilities are infinite when it comes to
conditions identified and relationships between the symptoms in a syndrome. The
editor to XQuery path seems much easier, but for the reverse I think the editor
should keep some other structure in place (as was proposed in the near past,
was it Alvin or you?).
I think some Eclipse
visual plugins are doing a similar think, they keep a “proprietary” file to
“render” information in an editor, and from there they can export to standard
formats –but the reverse is typically not possible without the original
“proprietary” file as well.
We can also just rely
on some existing XQuery editors which really make life easy but not to the
point we would have liked.
Cheers,
Stavros
PS. By the way, I
think the xquery below needs more complex algorithm to identify the condition
you mentioned :-)
From: Vaught, Jeffrey A
[mailto:Jeffrey.Vaught@ca.com]
Sent: 23 May 2011 15:05
To: saf@lists.oasis-open.org
Subject: [saf] Syndrome composition - interpreting an xquery signature
in an editor
It was on
my task list to provide an example where interpreting an XQuery with time &
frequency elements would be very difficult (for an editor, for example).
Symptoms
below.
We will be
searching for 3 or more occurrences within 30 second interval of
application/responsetime/threshold/breach where Subject is identical.
<?xml
version="1.0" encoding="UTF-8"?>
<SymptomStore>
<Symptom>
<SymptomId>com/ca/symptom/1</SymptomId>
<SymptomType>application/responsetime/threshold/breach</SymptomType>
<CreationDate>2011-05-23T10:00:00</CreationDate>
<Confidence>ModerateConfidence</Confidence>
<Reporter>com/ca/application/apm</Reporter>
<Subject>APP1@server1.ca.com</Subject>
<Content></Content>
</Symptom>
<Symptom>
<SymptomId>com/ca/symptom/2</SymptomId>
<SymptomType>system/process/memory/threshold/breach</SymptomType>
<CreationDate>2011-05-23T10:01:00</CreationDate>
<Confidence>ModerateConfidence</Confidence>
<Reporter>com/ca/system/nsm</Reporter>
<Subject>APP1@server1.ca.com</Subject>
<Content></Content>
</Symptom>
<Symptom>
<SymptomId>com/ca/symptom/3</SymptomId>
<SymptomType>system/process/memory/threshold/breach</SymptomType>
<CreationDate>2011-05-23T10:02:00</CreationDate>
<Confidence>ModerateConfidence</Confidence>
<Reporter>com/ca/system/nsm</Reporter>
<Subject>APP2@server2.ca.com</Subject>
<Content></Content>
</Symptom>
<Symptom>
<SymptomId>com/ca/symptom/4</SymptomId>
<SymptomType>application/responsetime/threshold/breach</SymptomType>
<CreationDate>2011-05-23T10:00:15</CreationDate>
<Confidence>ModerateConfidence</Confidence>
<Reporter>com/ca/application/apm</Reporter>
<Subject>APP1@server1.ca.com</Subject>
<Content></Content>
</Symptom>
<Symptom>
<SymptomId>com/ca/symptom/5</SymptomId>
<SymptomType>application/responsetime/threshold/breach</SymptomType>
<CreationDate>2011-05-23T10:00:20</CreationDate>
<Confidence>ModerateConfidence</Confidence>
<Reporter>com/ca/application/apm</Reporter>
<Subject>APP1@server1.ca.com</Subject>
<Content></Content>
</Symptom>
</SymptomStore>
Here is one
possible xquery. Note: Some liberties were taken to keep simple.
let $s := doc('file:///c:/docs/_symptoms/symptomstore.xml')/SymptomStore/Symptom[SymptomType='application/responsetime/threshold/breach' and
Subject='APP1@server1.ca.com']
let $freq := count($s)
return
if ($freq >= 3) then (
if ((fn:seconds-from-dateTime($s[$freq]/CreationDate)
- fn:seconds-from-dateTime($s[1]/CreationDate))
<= 30) then (
$s
)
else
()
)
else
()
How is it possible to
consistently extract the time interval (30) and the frequency (3) from such an
xquery, for the purposes of rendering in an editor?
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