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Date: Thu, 04 Dec 2003 09:20:55 -0600
From: "Bob Jacoby" <RJacoby@tceq.state.tx.us>
To: <jmeter-user@jakarta.apache.org>
Subject: Re: Using Regular Expression Extractor
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Thanks, it's nice to know I'm not going nuts - at least in this instance. =
:)

I'm still missing something - though it may be my misinterpretation of the =
docs. Again, using 1.9.1 on w2k.

>From the docs it sounds like I can use a single extractor to set multiple =
variables and use the <refName>_g# to reference them in following =
requests. For example (assumes that the reponse being parsed has the text =
Java <something> Platform in it and is on the same line), using the =
following values in an extractor:

Ref Name: test
Reg Ex: (Java).*?(Platform)
Template: $1$
Match No: 1
Default: hello

I expected to be able to reference these in my next sampler http request =
via:
template =3D $(test) <expected to be set to "Java">
firstentry =3D $(test_g1) <expected to be set to "Java">
secondentry =3D $(test_g2) <expected to be set to "Platform">

However,  the following request is:
Query Data: template=3Dhello&firstentry=3D${test_g1}&second=3D${test_g2}&=
=3D

If I modify the Reg Ex in the extractor to be (Java) rather than (Java).*?(=
Platform) I get the following:
Query Data: template=3DJava&firstentry=3DJava&second=3D${test_g2}&=3D

I've tested my regex in another tool to make sure that (Java).*?(Platform) =
does actually have a match in the response from the first request. Am I =
misunderstanding the docs?

Thanks,
Bob

>>> jsalvata@atg.com 12/03/03 05:26PM >>>
Yes, I remember some modifier (now called pre-processors) that was=20
working on the result of _previous_ request to decide on some change to=20
the one where it was placed. I don't know if any of the available=20
modifiers work this way anymore...

En/na Bob Jacoby ha escrit:
> That's funny. I could of sworn I tried doing that before even my first =
post, but alas, I must of screwed up somewhere else. I know I read a =
archived email that said specifically that you were supposed to put the =
regex call as a response to the 2nd request - and not the first. Oh well, =
maybe that's how it used to work in an older version or I'm going =
completly out of my mind.
>=20
> Thanks for you help!
>=20
> Bob=20
>=20
>=20
>>>>mikel@ticketweb.com 12/03/03 03:56PM >>>
>=20
> Ok.  I see the problem.  Move the Regexp extractor to the first =
sampler.=20
>   The extractor gets run on the -output- of the sampler it's attached=20
> to.  So, the variable isn't filled with anything in your case, until=20
> your test is done.
>=20
> And in your case, you still don't need the _g1.  But after rereading =
the=20
> docs, it won't hurt, either.
>=20
> Bob Jacoby wrote:
>=20
>=20
>>I tried that and the output is just=20
>>Query Data: timestamp=3D${stamp}&amp;=3D
>>I've tried every combination I can think of to get the $(stamp}=20
>>(with/without _g1) variable replaced with _anything_ and it never is. =
=20
>>:( Why would I need to drop the _g1 anyways since the manual states =
that=20
>>_g1 refers to the first group? If anyone has the time to look at them =
I=20
>>wrote a quick test page and a jmeter test plan to use the extractor -=20
>>which doesn't appear to work. Just put the pages in your doc root.
>>=20
>>Appreciate your help!
>>=20
>>Thanks,
>>Bob
>>=20
>>
>> >>> mikel@ticketweb.com 12/03/03 03:16PM >>>
>>Drop the _g1 from your variable.
>>
>>${stamp}
>>will do what you want.
>>
>>Bob Jacoby wrote:
>>
>> > Using 1.9.1 with Sun 1.3.1 JVM on windows 2k
>> >
>> > For the life of me I can't figure this out. I'm sure I'm missing=20
>>something stupid, but have wasted too much time trying to figure out=20
>>what that is. I want to use the Reg Exp. Extractor to dynamically add =
a=20
>>value to a http request from the response of the previous one. Per=20
>>previous posts I have a setup similar to:
>> >
>> > - simple controller
>> >  - http request
>> >  - http request
>> >    - Regular Expression Extractor
>> >
>> > I think i'm messing up the settings in my second http request. I=20
>>added a parameter:
>> > Name: timestamp
>> > value: ${stamp_g1}
>> >
>> > For my Reg Exp Extractor I have the following:
>> > Ref: stamp
>> > Regular Exp: .*(hidden?)  [note - i just have this cause i know it=20
>>returns something]
>> > Template: $1$
>> > Match No: 1
>> > Default Value: hello
>> >
>> > When I run it and look at the log file for my simple data writer =
the=20
>>request sent for the second request contains:
>> > Query Data: timestamp=3D${stamp_g1}
>> >
>> > I expected it to replace the ${stamp_g1} with the value of the =
regexp...
>> >
>> > Any points would be appreciated.
>> >
>> > Thanks,
>> > Bob
>> >
>>
>>
>>--=20
>>Mike Lindsey
>>"Ya know I vass normal once.  I came to work vith a tie and a suit and
>>sometimes panfs."
>>
>>
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>=20
>=20
>=20


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