JMeter example source code file (UniformRandomTimerGui.java)

This example JMeter source code file (UniformRandomTimerGui.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

box, field, gui, jpanel, jtextfield, jtextfield, non-nls-1, non-nls-1, override, randomtimer, randomtimer, string, string, swing, uniformrandomtimergui, verticallayout

The JMeter UniformRandomTimerGui.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.timers.gui;

import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;

import org.apache.jmeter.gui.util.FocusRequester;
import org.apache.jmeter.testelement.TestElement;
import org.apache.jmeter.timers.RandomTimer;
import org.apache.jmeter.timers.UniformRandomTimer;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.gui.layout.VerticalLayout;

/**
 * Implementation of a uniform random timer.
 *
 */
public class UniformRandomTimerGui extends AbstractTimerGui {

    private static final long serialVersionUID = 240L;

    // TODO - are these gui item names needed?
    private static final String DELAY_FIELD = "Delay Field";

    private static final String RANGE_FIELD = "Range Field";

    private static final String DEFAULT_DELAY = "0"; // $NON-NLS-1$

    private static final String DEFAULT_RANGE = "100.0";// $NON-NLS-1$

    private JTextField delayField;

    private JTextField rangeField;

    /**
     * No-arg constructor.
     */
    public UniformRandomTimerGui() {
        init();
    }

    /**
     * Handle an error.
     *
     * @param e
     *            the Exception that was thrown.
     * @param thrower
     *            the JComponent that threw the Exception.
     */
    public static void error(Exception e, JComponent thrower) {
        JOptionPane.showMessageDialog(thrower, e, "Error", JOptionPane.ERROR_MESSAGE);
    }

    public String getLabelResource() {
        return "uniform_timer_title"; //$NON-NLS-1$
    }

    /**
     * Create the test element underlying this GUI component.
     *
     * @see org.apache.jmeter.gui.JMeterGUIComponent#createTestElement()
     */
    public TestElement createTestElement() {
        RandomTimer timer = new UniformRandomTimer();
        modifyTestElement(timer);
        return timer;
    }

    /**
     * Modifies a given TestElement to mirror the data in the gui components.
     *
     * @see org.apache.jmeter.gui.JMeterGUIComponent#modifyTestElement(TestElement)
     */
    public void modifyTestElement(TestElement timer) {
        this.configureTestElement(timer);
        ((RandomTimer) timer).setDelay(delayField.getText());
        ((RandomTimer) timer).setRange(rangeField.getText());
    }

    /**
     * Configure this GUI component from the underlying TestElement.
     *
     * @see org.apache.jmeter.gui.JMeterGUIComponent#configure(TestElement)
     */
    @Override
    public void configure(TestElement el) {
        super.configure(el);
        delayField.setText(el.getPropertyAsString(RandomTimer.DELAY));
        rangeField.setText(el.getPropertyAsString(RandomTimer.RANGE));
    }

    /**
     * Initialize this component.
     */
    private void init() {
        setLayout(new VerticalLayout(5, VerticalLayout.BOTH));
        setBorder(makeBorder());

        add(makeTitlePanel());

        // THREAD DELAY PROPERTIES
        JPanel threadDelayPropsPanel = new JPanel();
        threadDelayPropsPanel.setLayout(new VerticalLayout(5, VerticalLayout.LEFT));
        threadDelayPropsPanel.setBorder(BorderFactory.createTitledBorder(JMeterUtils
                .getResString("thread_delay_properties"))); //$NON-NLS-1$

        // DELAY DEVIATION
        Box delayDevPanel = Box.createHorizontalBox();
        delayDevPanel.add(new JLabel(JMeterUtils.getResString("uniform_timer_range"))); //$NON-NLS-1$
        delayDevPanel.add(Box.createHorizontalStrut(5));

        rangeField = new JTextField(6);
        rangeField.setText(DEFAULT_RANGE);
        rangeField.setName(RANGE_FIELD);
        delayDevPanel.add(rangeField);

        threadDelayPropsPanel.add(delayDevPanel);

        // AVG DELAY
        Box avgDelayPanel = Box.createHorizontalBox();
        avgDelayPanel.add(new JLabel(JMeterUtils.getResString("uniform_timer_delay"))); //$NON-NLS-1$
        avgDelayPanel.add(Box.createHorizontalStrut(5));

        delayField = new JTextField(6);
        delayField.setText(DEFAULT_DELAY);
        delayField.setName(DELAY_FIELD);
        avgDelayPanel.add(delayField);

        threadDelayPropsPanel.add(avgDelayPanel);

        add(threadDelayPropsPanel);

        // Set the initial focus to the range field
        new FocusRequester(rangeField);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void clearGui() {
        rangeField.setText(DEFAULT_RANGE);
        delayField.setText(DEFAULT_DELAY);
        super.clearGui();
    }
}