How to read a text file line by line define a count function using groovy script engine in jmeter

Question

I have a text file contains 45 lines. I need to read the text file line by line based on the counter increment function.

Example: If we read the first line of a line then it prints count value is 1 and so on...

please provide me some good examples.

Answer 1

Try this:

new File(filename).eachWithIndex() { line, idx ->
    log.info "${idx} : ${line}"
}

Answer 2

• new File('/path/to/your/file').readLines().get(0) - returns the first line of the file
• new File('/path/to/your/file').readLines().get(1) - returns the second line of the file
• etc.

If you need to access the JMeter variable defined by the Counter configuration element - use vars shorthand for JMeterVariables class instance like:

new File('/path/to/your/file').readLines().get(vars.get('your_counter_variable') as int))

More information:

• Groovy File.readLines() function
• Apache Groovy - Why and How You Should Use It