// $Header: /home/cvs/jakarta-jmeter/src/core/org/apache/jmeter/engine/util/SimpleVariable.java,v 1.7 2004/02/14 03:34:28 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.engine.util;

import org.apache.jmeter.threads.JMeterContext;
import org.apache.jmeter.threads.JMeterContextService;
import org.apache.jmeter.threads.JMeterVariables;

/**
 * @version $Revision: 1.7 $
 */
public class SimpleVariable
{

    private String name;

    public SimpleVariable(String name)
    {
        this.name = name;
    }

    public SimpleVariable()
    {
        this.name = "";
    }

    public String getName()
    {
        return name;
    }

    public void setName(String name)
    {
        this.name = name;
    }

    /**
     * @see org.apache.jmeter.functions.Function#execute(SampleResult, Sampler)
     */
    public String toString()
    {
        String ret = null;
        JMeterVariables vars = getVariables();

        if (vars != null)
        {
            ret = vars.get(name);
        }

        if (ret == null)
        {
            return "${" + name + "}";
        }

        return ret;
    }

    private JMeterVariables getVariables()
    {
        JMeterContext context = JMeterContextService.getContext();
        return context.getVariables();
    }

}