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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

awt, can't, clear, clear, clearable, clearable, command, event, guipackage, hashset, jmeterguicomponent, jmeterguicomponent, jmetertreenode, jmetertreenode, set, string, 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.gui.action;

import java.awt.event.ActionEvent;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

import org.apache.jmeter.gui.GuiPackage;
import org.apache.jmeter.gui.JMeterGUIComponent;
import org.apache.jmeter.gui.tree.JMeterTreeNode;
import org.apache.jmeter.samplers.Clearable;
import org.apache.jorphan.logging.LoggingManager;
import org.apache.log.Logger;

 * Handles the following actions:
 * - Clear (Data)
 * - Clear All (Data)
 * - Reset (Clear GUI)
public class Clear implements Command {
    private static final Logger log = LoggingManager.getLoggerForClass();

    private static final Set<String> commands = new HashSet();

    static {

    public Clear() {

    public Set<String> getActionNames() {
        return commands;

    public void doAction(ActionEvent e) {
        GuiPackage guiPackage = GuiPackage.getInstance();
        final String actionCommand = e.getActionCommand();
        if (actionCommand.equals(ActionNames.CLEAR)) {
            JMeterGUIComponent guiComp = guiPackage.getCurrentGui();
            if (guiComp instanceof Clearable){
                ((Clearable) guiComp).clearData();
        } else if (actionCommand.equals(ActionNames.RESET_GUI)) {
            JMeterGUIComponent guiComp = guiPackage.getCurrentGui();
        } else {
            Iterator<?> iter = guiPackage.getTreeModel().getNodesOfType(Clearable.class).iterator();
            while (iter.hasNext()) {
                JMeterTreeNode node = null;
                JMeterGUIComponent guiComp = null;
                try {
                    node = (JMeterTreeNode);
                    guiComp = guiPackage.getGui(node.getTestElement());
                    if (guiComp instanceof Clearable){
                        Clearable item = (Clearable) guiComp;
                } catch (Exception ex) {
                    log.error("Can't clear: "+node+" "+guiComp, ex);

Other JMeter examples (source code examples)

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

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