// $Header: /home/cvs/jakarta-jmeter/src/functions/org/apache/jmeter/functions/JavaScript.java,v 1.6 2004/02/10 00:35:12 sebb Exp $
/*
* Copyright 2003-2004 The Apache Software Foundation.
*
* Licensed 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.functions;
import java.io.Serializable;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
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;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.JavaScriptException;
import org.mozilla.javascript.Scriptable;
public class JavaScript extends AbstractFunction implements Serializable
{
private static final List desc = new LinkedList();
private static final String KEY = "__javaScript";
static {
desc.add("JavaScript expression to evaluate");
desc.add(JMeterUtils.getResString("function_name_param"));
}
private Object[] values;
public JavaScript()
{
}
public Object clone()
{
JavaScript newJavaScript = new JavaScript();
return newJavaScript;
}
/* (non-Javadoc)
* @see org.apache.jmeter.functions.Function#execute(SampleResult, Sampler)
*/
public synchronized String execute(
SampleResult previousResult,
Sampler currentSampler)
throws InvalidVariableException
{
JMeterVariables vars = getVariables();
String script = ((CompoundVariable) values[0]).execute();
String varName =
((CompoundVariable) values[values.length - 1]).execute();
String resultStr = "";
Context cx = Context.enter();
try
{
Scriptable scope = cx.initStandardObjects(null);
Object result = cx.evaluateString(scope, script, "<cmd>", 1, null);
resultStr = Context.toString(result);
vars.put(varName, resultStr);
}
catch (JavaScriptException e)
{
throw new InvalidVariableException();
}
finally
{
Context.exit();
}
return resultStr;
}
/* (non-Javadoc)
* @see org.apache.jmeter.functions.Function#setParameters(Collection)
*/
public void setParameters(Collection parameters)
throws InvalidVariableException
{
values = parameters.toArray();
if (values.length < 2)
{
throw new InvalidVariableException();
}
}
/* (non-Javadoc)
* @see org.apache.jmeter.functions.Function#getReferenceKey()
*/
public String getReferenceKey()
{
return KEY;
}
/* (non-Javadoc)
* @see org.apache.jmeter.functions.Function#getArgumentDesc()
*/
public List getArgumentDesc()
{
return desc;
}
}