CODEWITHSUNDEEP
jmeterbeanshell
shey
shey

Reputation: 354

How to get the name given to transaction controller using beanshell preprocesssor in jmeter

I want to get the name given to transaction controller using BeanShell preprocessor in JMeter. Which I want to use to connect and display in dynaTrace later using header manager.

I tried something like this using BeanShell listener

String test = sampleResult.getSampleLabel();
log.info(test);

but I want to use the preprocessor.

log.info(sampler.getName());

This is used to get the name of sampler, in the similar way I want to get the name of transaction controller.

Specifically, I want to use BeanShell preprocessor .

Can somebody help me in this?

Upvotes: 1

Views: 4782

Answers (1)

Dmitri T
Dmitri T

Reputation: 168157

You cannot walk further than Previous Result or Previous Sampler so I would state that it is not something you can implement easily. Looks like your test is not very well designed as normally people do not require knowing the name of the parent sampler controller.

Nevertheless you can get access to JMeter Test Plan Tree and figure out information from there. The example code will look something like:

import org.apache.jmeter.control.TransactionController;
import org.apache.jmeter.engine.StandardJMeterEngine;
import org.apache.jorphan.collections.HashTree;
import org.apache.jorphan.collections.SearchByClass;

import java.lang.reflect.Field;
import java.util.Collection;

StandardJMeterEngine engine = ctx.getEngine();
Field test = engine.getClass().getDeclaredField("test");
test.setAccessible(true);
HashTree testPlanTree = (HashTree) test.get(engine);

SearchByClass txnCtrlSearch = new SearchByClass(TransactionController.class);
testPlanTree.traverse(txnCtrlSearch);
Collection txnControllers = txnCtrlSearch.getSearchResults();

for (Object txnController : txnControllers) {
    log.info(((TransactionController) txnController).getName());
}

Demo:

Beanshell Transaction Controller Name

Some information on using JMeter API from Beanshell scripts: How to Use BeanShell: JMeter's Favorite Built-in Component

Upvotes: 6

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