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List:       jmeter-user
Subject:    Re: Run code block only once with JSR223
From:       Mariusz W <mawasak () gmail ! com>
Date:       2020-03-15 17:10:45
Message-ID: CANWL8w5XJODddj1Lj-pN=LrFednkGj5YegnbiX9nFqE1=4nTwQ () mail ! gmail ! com
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Hi,
It's ok - Properties is subclass of Hashtable
https://docs.oracle.com/javase/8/docs/api/java/util/Hashtable.html#put-K-V-
so you can use put method on props in JSR 223 Sampler (
https://jmeter.apache.org/usermanual/component_reference.html#JSR223_Sampler
)

Regards,
Mariusz

On Sun, 15 Mar 2020 at 17:56, Alexandre Gattiker <agattiker@gmail.com>
wrote:

> Thanks a lot! I was able to set an object as a property and get this to
> work. It also turns out that KafkaProducer is thread safe, so I only need
> to create one instance in my setUp thread group.
> 
> However - this violates the contract of the Properties class, which should
> have only strings as keys and values (
> https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html). Not
> sure it's a proper thing to do.
> 
> On Sun, Mar 15, 2020 at 5:37 PM Sergio Boso <sergio@bosoconsulting.it>
> wrote:
> 
> > Hi Alexandre,
> > 
> > 
> > never tried this, but I think you can set property objects.
> > Have a look at
> > 
> > 
> https://jmeter.apache.org/api/org/apache/jmeter/testelement/property/ObjectProperty.html
> 
> > 
> > You should be able to get and set properties.
> > Let me know if this is successful!
> > 
> > regards
> > 
> > Sergio
> > 
> > Il 15/03/2020 16:52, Alexandre Gattiker ha scritto:
> > > Thanks Sergio. So I would have to say create 10 Kafka Producers in my
> > setUp Thread Group, and then pass them to my standard Thread
> > > Group? How? As I understand, JMeter variables can't be shared between
> > Thread groups, and Properties can, but are limited to String
> > > values.
> > > 
> > > On Sun, Mar 15, 2020 at 4:31 PM Sergio Boso <sergio@bosoconsulting.it
> > <mailto:sergio@bosoconsulting.it>> wrote:
> > > 
> > > Hi, you can easily add a "setUp Thread Group" end insert proper
> > samplers below this thread group
> > > 
> > > Regards
> > > Sergio
> > > 
> > > 
> > > Il 15/03/2020 16:22, Alexandre Gattiker ha scritto:
> > > > I'm trying to write a JSR 223 Sampler that sends messages to
> Kafka,
> > > > essentially replicating PepperBox (
> > > > 
> > 
> https://github.com/GSLabDev/pepper-box/blob/master/src/main/java/com/gslab/pepper/sampler/PepperBoxKafkaSampler.java
> 
> > )
> > > > in
> > > > Groovy.
> > > > 
> > > > Is there a way to replicate the behavior of setupTest(), i.e. run
> > a code
> > > > block only once before all iterations (to create the Kafka
> > producer)?
> > > --
> > > 
> > > Ing. Sergio Boso
> > > 
> > > 
> > > 
> > 
> > 
> > --
> > 
> > Ing. Sergio Boso
> > 
> > 
> > 
> > 
> 



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