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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

date, invalidvariableexception, key, list, non-nls-1, non-nls-1, not, override, override, simpledateformat, string, string, text, timefunction, timefunction, util

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.functions;

import java.text.SimpleDateFormat;
import java.util.Collection;
import java.util.Date;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import org.apache.jmeter.engine.util.CompoundVariable;
import org.apache.jmeter.samplers.SampleResult;
import org.apache.jmeter.samplers.Sampler;
import org.apache.jmeter.threads.JMeterVariables;
import org.apache.jmeter.util.JMeterUtils;

// See org.apache.jmeter.functions.TestTimeFunction for unit tests

 * __time() function - returns the current time in milliseconds
public class TimeFunction extends AbstractFunction {

    private static final String KEY = "__time"; // $NON-NLS-1$

    private static final List<String> desc = new LinkedList();

    // Only modified in class init
    private static final Map<String, String> aliases = new HashMap();

    static {
        desc.add(JMeterUtils.getResString("time_format")); //$NON-NLS-1$
        desc.add(JMeterUtils.getResString("function_name_paropt")); //$NON-NLS-1$
        aliases.put("YMD", //$NON-NLS-1$
                JMeterUtils.getPropDefault("time.YMD", //$NON-NLS-1$
                        "yyyyMMdd")); //$NON-NLS-1$
        aliases.put("HMS", //$NON-NLS-1$
                JMeterUtils.getPropDefault("time.HMS", //$NON-NLS-1$
                        "HHmmss")); //$NON-NLS-1$
        aliases.put("YMDHMS", //$NON-NLS-1$
                JMeterUtils.getPropDefault("time.YMDHMS", //$NON-NLS-1$
                        "yyyyMMdd-HHmmss")); //$NON-NLS-1$
        aliases.put("USER1", //$NON-NLS-1$
                JMeterUtils.getPropDefault("time.USER1","")); //$NON-NLS-1$
        aliases.put("USER2", //$NON-NLS-1$
                JMeterUtils.getPropDefault("time.USER2","")); //$NON-NLS-1$

    // Ensure that these are set, even if no paramters are provided
    private String format   = ""; //$NON-NLS-1$
    private String variable = ""; //$NON-NLS-1$

    public TimeFunction(){

    /** {@inheritDoc} */
    public synchronized String execute(SampleResult previousResult, Sampler currentSampler) throws InvalidVariableException {
        String datetime;
        if (format.length() == 0){// Default to milliseconds
            datetime = Long.toString(System.currentTimeMillis());
        } else {
            // Resolve any aliases
            String fmt = aliases.get(format);
            if (fmt == null) {
                fmt = format;// Not found
            SimpleDateFormat df = new SimpleDateFormat(fmt);// Not synchronised, so can't be shared
            datetime = df.format(new Date());

        if (variable.length() > 0) {
            JMeterVariables vars = getVariables();
            if (vars != null){// vars will be null on TestPlan
                vars.put(variable, datetime);
        return datetime;

    /** {@inheritDoc} */
    public synchronized void setParameters(Collection<CompoundVariable> parameters) throws InvalidVariableException {

        checkParameterCount(parameters, 0, 2);

        Object []values = parameters.toArray();
        int count = values.length;

        if (count > 0) {
            format = ((CompoundVariable) values[0]).execute();

        if (count > 1) {
            variable = ((CompoundVariable)values[1]).execute().trim();


    /** {@inheritDoc} */
    public String getReferenceKey() {
        return KEY;

    /** {@inheritDoc} */
    public List<String> getArgumentDesc() {
        return desc;

Other JMeter examples (source code examples)

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