How can I delete and create new csv file with jmeter

Question

I'm storing data in CSV file, I want to remove CSV file content after test execution.

Or delete csv file and create it again before new test run. Was using tearDown Thread Group and BeanShell Samper, and it does not work.

And If adding new csv again before execution, where should I write the script, cause test will not be run, untill system find needed csv file.

Answer 1

I have a script which in the end produces customers to csv file, but before customers creation csv file is deleted. I used setUp Thread Group which is executed before other thread groups and in that setup group I used BeanShell Sampler with such code:

 import org.apache.jmeter.services.FileServer;

 String customers = FileServer.getFileServer().getBaseDir() + "\\customers.csv";

 try {

  File file = new File(customers);

  if (file.delete()) {
   System.out.println(file.getName() + " is deleted!");
  } else {
   System.out.println("Delete operation has failed!");
  }
 } catch (Exception e) {
  e.printStackTrace();
 }

And it works as expected.

Answer 2

• setUp thread Group for creating new file

Check this example for file creation

• teardown thread Group for deleting the file

new File("/path/to/your/file.csv").delete();

Answer 3

Just another BeanShell example, delete the csv of stored filename.

import org.apache.commons.io.FileUtils;

String filename = "D://jmeter//"+vars.get("csvfilename")+".csv";
new File(filename).delete();