Process of Array of Strings in Beanshell preprocessor in Jmeter

Question

I have a Jmeter (version 4.0) test script where I am using json extractor to fetch an array of strings from the response json using $..Names and storing it in a variable groupOfNames. The various names are stored like groupOfNames_1, groupOfNames_2, groupOfNames_ALL.

I need to make POST call next with body as

{
"name1", "name2", "name3" (--actual values--)
}

How can i achieve this using bean shell preprocessor? groupOfNames_ALL gives me all value but like this.... name1, name2, name3 (without quotes surrounding individual names). Please help. Thanks.

may help full to you stack answer for Jason conversion in java — prat22
– prat22, Commented Apr 9, 2018 at 11:40

Dmitri T · Accepted Answer · 2018-04-09 12:33:45Z

3

I heard Groovy is the New Black so you can add quotation marks around each of names as simply as:

vars.put('groupOfNames_ALL',vars.get('groupOfNames_ALL').split(',').collect {"\"$it\""  }.join(', '))

Demo:

Also as a gentle reminder: JMeter users are encouraged to use JSR223 Test Elements for any form of scripting since JMeter 3.1

answered Apr 9, 2018 at 12:33

Dmitri T

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4 Comments

vaibhav misra Over a year ago

I have to mark your solution as the right answer as it achieved what i wanted in just a single line. Can you explain what collect and $it is doing in your solution? Thanks a lot anyways :)

Dmitri T Over a year ago

You're asking for a story while I'm limited to a chapter. It is implicit parameter: groovy-lang.org/closures.html

vaibhav misra Over a year ago

i googled a bit after i asked you and got a rough idea. i am not familiar with groovy so couldn't get it. Thanks for providing the link. It helps

Dymond Over a year ago

@DmitriT thanks for this. have been looking for a couple of hours on how to solve this problem :D

ararar · Accepted Answer · 2018-04-09 12:16:46Z

3

Put the below code in your BeanShell PreProcessor:

int matchNr = Integer.parseInt(vars.get("groupOfNames_matchNr"));

for(int i = 1; i <= matchNr; i++){
    String Names = vars.get("groupOfNames_" + i);
    if(i == matchNr){
        vars.put("AllNames", vars.get("AllNames") + "\"" + Names + "\"");
    }
    else if(i == 1){
        vars.put("AllNames","\"" + Names + "\", ");
    }
    else{
        vars.put("AllNames", vars.get("AllNames") + "\"" + Names + "\", ");
    }

Then use the variable ${AllNames} in your post as below:

{
${AllNames}
}

answered Apr 9, 2018 at 12:16

ararar

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1 Comment

vaibhav misra Over a year ago

Your solution works fine and it solved my problem. Thanks a ton.

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