Loop sample with Regular Expression Extractor result in JMeter

Question

I have 4 samples:

First one has a response similar to the XML:

<userId>9709262083</userId>
<name>Tom</name>
<relatedTo>9709262080</relatedTo>
<userId>9709262084</userId>
<name>John</name>
<relatedTo>9709262080</relatedTo>
<userId>9709262085</userId>
<name>Michael</name>
<relatedTo>9709262080</relatedTo>

I created special Regular expression extractor to fetch all userIds (-1 as a Match no.) and fetching work correctly.

And I have 3 exact same samples with only one difference in one parameter (${USER_ID_1}, ${USER_ID_2} and ${USER_ID_3}), but I would like to make my solution more generic and work even if I'll don't know the number of users will be in response.

How can I replace these 3 samples with 1 sample in some kind of loop for each element found in Regular Expression Extractor (without knowing an exact number of users).

(I'm using JMeter 3.2, I'm able to bump it to 5.1)

Update:

How about another way, instead of splitting them I would like to use them as a single variable inside sampler.

//e.g. 3 users 
"<User><userId>9709262083</userId></User> <User><userId>9709262084</userId></User> <User><userId>97092620835</userId></User>"

//e.g. 2 users
"<User><userId>9709262083</userId></User> <User><userId>9709262084</userId></User>"

The ideal solution would be to create a temp variable and in each step of the for each, I would just add to that variable pattern with my value.

${myVariable} += "<User><userId>${userId}</userId></User>"

and then I can jsut use ${myVariable}

Answer 1

EDIT

Your new requirement ${myVariable} += "<User><userId>${userId}</userId></User>"

Can be achieved by using JSR223 Sampler with the following line

vars.put("myVariable", vars.get("myVariable") + "<User><userId>"+ vars.get("userId") + "</userId></User>");

You should use the ForEach controller.example:

following variables should have been defined:

inputVar_1 = wendy

inputVar_2 = charles

inputVar_3 = peter

inputVar_4 = john

When the return variable is given as "returnVar", the collection of samplers and controllers under the ForEach controller will be executed 4 consecutive times