JMeter example source code file (BeanShellPreProcessor.java)

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

Java - JMeter tags/keywords

beanshell, beanshell, beanshelltestelement, init_file, init_file, jmetervariables, non-nls-1, non-nls-1, override, preprocessor, problem, sampler, string, string

The JMeter BeanShellPreProcessor.java 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
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 */

package org.apache.jmeter.modifiers;

import org.apache.jmeter.processor.PreProcessor;
import org.apache.jmeter.samplers.SampleResult;
import org.apache.jmeter.samplers.Sampler;
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 BeanShellPreProcessor extends BeanShellTestElement
    implements Cloneable, PreProcessor, TestBean
{
    private static final Logger log = LoggingManager.getLoggerForClass();

    private static final long serialVersionUID = 4;

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

    @Override
    protected String getInitFileProperty() {
        return INIT_FILE;
    }

    public void process(){
        final BeanShellInterpreter bshInterpreter = getBeanShellInterpreter();
        if (bshInterpreter == null) {
            log.error("BeanShell not found");
            return;
        }
        JMeterContext jmctx = JMeterContextService.getContext();
        JMeterVariables vars = jmctx.getVariables();
        Sampler sam = jmctx.getCurrentSampler();
        SampleResult prev = jmctx.getPreviousResult();
        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("sampler", sam);//$NON-NLS-1$
            bshInterpreter.set("prev", prev);//$NON-NLS-1$

            processFileOrScript(bshInterpreter);
        } catch (JMeterException e) {
            log.warn("Problem in BeanShell script "+e);
        }
    }
}