JMeter example source code file (ThroughputControllerGui.java)

This example JMeter source code file (ThroughputControllerGui.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

awt, defaultcomboboxmodel, event, gui, jcheckbox, jlabel, jpanel, jtextfield, non-nls-1, non-nls-1, override, string, string, swing, throughputcontroller, throughputcontroller, throughputcontrollergui, throughputcontrollergui

The JMeter ThroughputControllerGui.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.control.gui;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.DefaultComboBoxModel;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

import org.apache.jmeter.control.ThroughputController;
import org.apache.jmeter.testelement.TestElement;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.gui.layout.VerticalLayout;

public class ThroughputControllerGui extends AbstractControllerGui {
    private static final long serialVersionUID = 240L;

    private JComboBox styleBox;

    private int style;

    private JTextField throughput;

    private JCheckBox perthread;

    private boolean isPerThread = true;

    // These must not be static, otherwise Language change does not work
    private final String BYNUMBER_LABEL = JMeterUtils.getResString("throughput_control_bynumber_label"); // $NON-NLS-1$

    private final String BYPERCENT_LABEL = JMeterUtils.getResString("throughput_control_bypercent_label"); // $NON-NLS-1$

    private final String THROUGHPUT_LABEL = JMeterUtils.getResString("throughput_control_tplabel"); // $NON-NLS-1$

    private final String PERTHREAD_LABEL = JMeterUtils.getResString("throughput_control_perthread_label"); // $NON-NLS-1$

    public ThroughputControllerGui() {
        init();
    }

    public TestElement createTestElement() {
        ThroughputController tc = new ThroughputController();
        modifyTestElement(tc);
        return tc;
    }

    /**
     * Modifies a given TestElement to mirror the data in the gui components.
     *
     * @see org.apache.jmeter.gui.JMeterGUIComponent#modifyTestElement(TestElement)
     */
    public void modifyTestElement(TestElement tc) {
        configureTestElement(tc);
        ((ThroughputController) tc).setStyle(style);
        ((ThroughputController) tc).setPerThread(isPerThread);
        if (style == ThroughputController.BYNUMBER) {
            try {
                ((ThroughputController) tc).setMaxThroughput(Integer.parseInt(throughput.getText().trim()));
            } catch (NumberFormatException e) {
                // In case we are converting back from floating point, drop the decimal fraction
                ((ThroughputController) tc).setMaxThroughput((throughput.getText().trim().split("\\.")[0])); // $NON-NLS-1$
            }
        } else {
            try {
                ((ThroughputController) tc).setPercentThroughput(Float.parseFloat(throughput.getText().trim()));
            } catch (NumberFormatException e) {
                ((ThroughputController) tc).setPercentThroughput(throughput.getText());
            }
        }
    }

    /**
     * Implements JMeterGUIComponent.clearGui
     */
    @Override
    public void clearGui() {
        super.clearGui();
        styleBox.setSelectedIndex(0);
        throughput.setText("1"); // $NON-NLS-1$
        perthread.setSelected(true);
    }

    @Override
    public void configure(TestElement el) {
        super.configure(el);
        if (((ThroughputController) el).getStyle() == ThroughputController.BYNUMBER) {
            styleBox.getModel().setSelectedItem(BYNUMBER_LABEL);
            throughput.setText(((ThroughputController) el).getMaxThroughput());
        } else {
            styleBox.setSelectedItem(BYPERCENT_LABEL);
            throughput.setText(((ThroughputController) el).getPercentThroughput());
        }
        perthread.setSelected(((ThroughputController) el).isPerThread());
    }

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

    private void init() {
        setLayout(new VerticalLayout(5, VerticalLayout.BOTH, VerticalLayout.TOP));
        setBorder(makeBorder());
        add(makeTitlePanel());

        DefaultComboBoxModel styleModel = new DefaultComboBoxModel();
        styleModel.addElement(BYNUMBER_LABEL);
        styleModel.addElement(BYPERCENT_LABEL);
        styleBox = new JComboBox(styleModel);
        styleBox.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                if (((String) styleBox.getSelectedItem()).equals(BYNUMBER_LABEL)) {
                    style = ThroughputController.BYNUMBER;
                } else {
                    style = ThroughputController.BYPERCENT;
                }
            }
        });
        add(styleBox);

        // TYPE FIELD
        JPanel tpPanel = new JPanel();
        JLabel tpLabel = new JLabel(THROUGHPUT_LABEL);
        tpPanel.add(tpLabel);

        // TEXT FIELD
        throughput = new JTextField(5);
        tpPanel.add(throughput);
        throughput.setText("1"); // $NON-NLS-1$
        // throughput.addActionListener(this);
        tpPanel.add(throughput);
        add(tpPanel);

        // PERTHREAD FIELD
        perthread = new JCheckBox(PERTHREAD_LABEL, isPerThread);
        perthread.addItemListener(new ItemListener() {
            public void itemStateChanged(ItemEvent event) {
                if (event.getStateChange() == ItemEvent.SELECTED) {
                    isPerThread = true;
                } else {
                    isPerThread = false;
                }
            }
        });
        add(perthread);
    }
}