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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

abstractfunction, invalidvariableexception, key, key, list, non-nls-1, non-nls-1, object, override, override, sampler, string, string, unescapehtml, 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.util.Collection;
import java.util.LinkedList;
import java.util.List;

import org.apache.commons.lang.StringEscapeUtils;
import org.apache.jmeter.engine.util.CompoundVariable;
import org.apache.jmeter.samplers.SampleResult;
import org.apache.jmeter.samplers.Sampler;
import org.apache.jmeter.util.JMeterUtils;

 * Function to unescape a string containing entity escapes
 * to a string containing the actual Unicode characters corresponding to the escapes. 
 * Supports HTML 4.0 entities.
 * <p>
 * For example, the string "&lt;Fran&ccedil;ais&gt;" will become "<Français>"
 * </p>
 * <p>
 * If an entity is unrecognized, it is left alone, and inserted verbatim into the result string.
 * e.g. "&gt;&zzzz;x" will become ">&zzzz;x".
 * </p>
 * @see org.apache.commons.lang.StringEscapeUtils#unescapeHtml(String)
public class UnEscapeHtml extends AbstractFunction {

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

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

    static {
        desc.add(JMeterUtils.getResString("unescape_html_string")); //$NON-NLS-1$

    private Object[] values;

    public UnEscapeHtml() {

    /** {@inheritDoc} */
    public synchronized String execute(SampleResult previousResult, Sampler currentSampler)
            throws InvalidVariableException {

        String escapedString = ((CompoundVariable) values[0]).execute();
        return StringEscapeUtils.unescapeHtml(escapedString);


    /** {@inheritDoc} */
    public synchronized void setParameters(Collection<CompoundVariable> parameters) throws InvalidVariableException {
        checkParameterCount(parameters, 1);
        values = parameters.toArray();

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

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

Other JMeter examples (source code examples)

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

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