JMeter example source code file (ReplaceFunctionsWithStrings.java)

This example JMeter source code file (ReplaceFunctionsWithStrings.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

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 ReplaceFunctionsWithStrings.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.
 *
 */

/*
 * 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.testelement.property.JMeterProperty;
import org.apache.jmeter.testelement.property.StringProperty;
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) {
        super();
        setMasterFunction(masterFunction);
        setVariables(variables);
        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 = iter.next();
            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;
    }
}