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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

function_ref_prefix, function_ref_suffix, function_ref_suffix, malformedpatternexception, map, non-nls-1, non-nls-1, perl5compiler, replacefunctionswithstrings, replacefunctionswithstrings, string, string, stringproperty, stringsubstitution, 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.

 * Created on May 4, 2003
package org.apache.jmeter.engine.util;

import java.util.Iterator;
import java.util.Map;

import org.apache.jmeter.functions.InvalidVariableException;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jmeter.util.StringUtilities;
import org.apache.jorphan.logging.LoggingManager;
import org.apache.log.Logger;
import org.apache.oro.text.regex.MalformedPatternException;
import org.apache.oro.text.regex.Pattern;
import org.apache.oro.text.regex.PatternCompiler;
import org.apache.oro.text.regex.PatternMatcher;
import org.apache.oro.text.regex.Perl5Compiler;
import org.apache.oro.text.regex.StringSubstitution;
import org.apache.oro.text.regex.Util;

 * Transforms strings into variable references (in spite of the name, which
 * suggests the opposite!)
public class ReplaceFunctionsWithStrings extends AbstractTransformer {
    private static final Logger log = LoggingManager.getLoggerForClass();

    // Functions are wrapped in ${ and }
    private static final String FUNCTION_REF_PREFIX = "${"; //$NON-NLS-1$

    private static final String FUNCTION_REF_SUFFIX = "}"; //$NON-NLS-1$

    private boolean regexMatch;// Should we match using regexes?

    public ReplaceFunctionsWithStrings(CompoundVariable masterFunction, Map<String, String> variables) {
        this(masterFunction, variables, false);

    public ReplaceFunctionsWithStrings(CompoundVariable masterFunction, Map<String, String> variables, boolean regexMatch) {
        this.regexMatch = regexMatch;

    public JMeterProperty transformValue(JMeterProperty prop) throws InvalidVariableException {
        PatternMatcher pm = JMeterUtils.getMatcher();
        Pattern pattern = null;
        PatternCompiler compiler = new Perl5Compiler();
        Iterator<String> iter = getVariables().keySet().iterator();
        String input = prop.getStringValue();
        while (iter.hasNext()) {
            String key =;
            String value = getVariables().get(key);
            if (regexMatch) {
                try {
                    pattern = compiler.compile(value);
                    input = Util.substitute(pm, pattern,
                            new StringSubstitution(FUNCTION_REF_PREFIX + key + FUNCTION_REF_SUFFIX),
                            input, Util.SUBSTITUTE_ALL);
                } catch (MalformedPatternException e) {
                    log.warn("Malformed pattern " + value);
            } else {
                input = StringUtilities.substitute(input, value, FUNCTION_REF_PREFIX + key + FUNCTION_REF_SUFFIX);
        StringProperty newProp = new StringProperty(prop.getName(), input);
        return newProp;

Other JMeter examples (source code examples)

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

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