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JMeter example source code file (

This example JMeter source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - JMeter tags/keywords

beanshell, beanshelltestelement, init_file, init_file, jmetervariables, needed, non-nls-1, non-nls-1, problem, samplelistener, string, string, visualizer, visualizer

The JMeter source code

 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package org.apache.jmeter.visualizers;

import org.apache.jmeter.gui.UnsharedComponent;
import org.apache.jmeter.samplers.SampleEvent;
import org.apache.jmeter.samplers.SampleListener;
import org.apache.jmeter.samplers.SampleResult;
import org.apache.jmeter.testbeans.TestBean;
import org.apache.jmeter.threads.JMeterContext;
import org.apache.jmeter.threads.JMeterContextService;
import org.apache.jmeter.threads.JMeterVariables;
import org.apache.jmeter.util.BeanShellInterpreter;
import org.apache.jmeter.util.BeanShellTestElement;
import org.apache.jorphan.logging.LoggingManager;
import org.apache.jorphan.util.JMeterException;
import org.apache.log.Logger;

public class BeanShellListener extends BeanShellTestElement
    implements Cloneable, SampleListener, TestBean, Visualizer, UnsharedComponent  {
    // N.B. Needs to implement Visualizer so that TestBeanGUI can find the correct GUI class
    // TODO - remove UnsharedComponent ? Probably does not make sense for a TestBean.

    private static final Logger log = LoggingManager.getLoggerForClass();

    private static final long serialVersionUID = 4;

    // can be specified in
    private static final String INIT_FILE = "beanshell.listener.init"; //$NON-NLS-1$

    protected String getInitFileProperty() {
        return INIT_FILE;

    public void sampleOccurred(SampleEvent se) {
        final BeanShellInterpreter bshInterpreter = getBeanShellInterpreter();
        if (bshInterpreter == null) {
            log.error("BeanShell not found");

        JMeterContext jmctx = JMeterContextService.getContext();
        JMeterVariables vars = jmctx.getVariables();
        SampleResult samp=se.getResult();
        try {
            // Add variables for access to context and variables
            bshInterpreter.set("ctx", jmctx);//$NON-NLS-1$
            bshInterpreter.set("vars", vars);//$NON-NLS-1$
            bshInterpreter.set("sampleEvent", se);//$NON-NLS-1$
            bshInterpreter.set("sampleResult", samp);//$NON-NLS-1$
        } catch (JMeterException e) {
            log.warn("Problem in BeanShell script "+e);

    public void sampleStarted(SampleEvent e) {

    public void sampleStopped(SampleEvent e) {

    public void add(SampleResult sample) {
        // TODO Auto-generated method stub


    public boolean isStats() { // Needed by Visualizer interface
        return false;


Other JMeter examples (source code examples)

Here is a short list of links related to this JMeter source code file:

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