JMeter example source code file (TableVisualizer.java)

This example JMeter source code file (TableVisualizer.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, border, functor, functor, gui, jlabel, jpanel, jpanel, jtextfield, jtextfield, non-nls-1, non-nls-1, renderers, samplesuccessfunctor, string, swing, table, tablevisualizer, text, time

The JMeter TableVisualizer.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.visualizers;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.text.Format;
import java.text.SimpleDateFormat;

import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.border.Border;
import javax.swing.border.EmptyBorder;
import javax.swing.table.TableCellRenderer;

import org.apache.jmeter.gui.util.HeaderAsPropertyRenderer;
import org.apache.jmeter.samplers.Clearable;
import org.apache.jmeter.samplers.SampleResult;
import org.apache.jmeter.util.Calculator;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jmeter.visualizers.gui.AbstractVisualizer;
import org.apache.jorphan.gui.ObjectTableModel;
import org.apache.jorphan.gui.RendererUtils;
import org.apache.jorphan.gui.RightAlignRenderer;
import org.apache.jorphan.gui.layout.VerticalLayout;
import org.apache.jorphan.reflect.Functor;

/**
 * This class implements a statistical analyser that calculates both the average
 * and the standard deviation of the sampling process. The samples are displayed
 * in a JTable, and the statistics are displayed at the bottom of the table.
 *
 * created March 10, 2002
 *
 */
public class TableVisualizer extends AbstractVisualizer implements Clearable {

    private static final long serialVersionUID = 240L;

    // Note: the resource string won't respond to locale-changes,
    // however this does not matter as it is only used when pasting to the clipboard
    private static final ImageIcon imageSuccess = JMeterUtils.getImage(
            JMeterUtils.getPropDefault("viewResultsTree.success",  //$NON-NLS-1$
                                       "icon_success_sml.gif"),    //$NON-NLS-1$
            JMeterUtils.getResString("table_visualizer_success")); //$NON-NLS-1$

    private static final ImageIcon imageFailure = JMeterUtils.getImage(
            JMeterUtils.getPropDefault("viewResultsTree.failure",  //$NON-NLS-1$
                                       "icon_warning_sml.gif"),    //$NON-NLS-1$
            JMeterUtils.getResString("table_visualizer_warning")); //$NON-NLS-1$

    private static final String[] COLUMNS = new String[] {
            "table_visualizer_sample_num",  // $NON-NLS-1$
            "table_visualizer_start_time",  // $NON-NLS-1$
            "table_visualizer_thread_name", // $NON-NLS-1$
            "sampler_label",                // $NON-NLS-1$
            "table_visualizer_sample_time", // $NON-NLS-1$
            "table_visualizer_status",      // $NON-NLS-1$
            "table_visualizer_bytes" };     // $NON-NLS-1$

    private ObjectTableModel model = null;

    private JTable table = null;

    private JTextField dataField = null;

    private JTextField averageField = null;

    private JTextField deviationField = null;

    private JTextField noSamplesField = null;

    private JScrollPane tableScrollPanel = null;

    private transient Calculator calc = new Calculator();

    private long currentData = 0;

    private Format format = new SimpleDateFormat("HH:mm:ss.SSS"); //$NON-NLS-1$

    // Column renderers
    private static final TableCellRenderer[] RENDERERS =
        new TableCellRenderer[]{
            null, // Count
            new RightAlignRenderer(), // Start Time
            null, // Thread Name
            null, // Label
            null, // Sample Time
            null, // Status
            null, // Bytes
        };

    /**
     * Constructor for the TableVisualizer object.
     */
    public TableVisualizer() {
        super();
        model = new ObjectTableModel(COLUMNS,
                Sample.class,         // The object used for each row
                new Functor[] {
                new Functor("getCount"), // $NON-NLS-1$
                new Functor("getStartTimeFormatted",  // $NON-NLS-1$
                        new Object[]{format}),
                new Functor("getThreadName"), // $NON-NLS-1$
                new Functor("getLabel"), // $NON-NLS-1$
                new Functor("getData"), // $NON-NLS-1$
                new SampleSuccessFunctor("isSuccess"), // $NON-NLS-1$
                new Functor("getBytes") }, // $NON-NLS-1$
                new Functor[] { null, null, null, null, null, null, null },
                new Class[] {
                Long.class, String.class, String.class, String.class, Long.class, ImageIcon.class, Integer.class });
        init();
    }

    public static boolean testFunctors(){
        TableVisualizer instance = new TableVisualizer();
        return instance.model.checkFunctors(null,instance.getClass());
    }


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

    protected synchronized void updateTextFields() {
        noSamplesField.setText(Long.toString(calc.getCount()));
        dataField.setText(Long.toString(currentData));
        averageField.setText(Long.toString((long) calc.getMean()));
        deviationField.setText(Long.toString((long) calc.getStandardDeviation()));
    }

    public void add(SampleResult res) {
        currentData = res.getTime();
        synchronized (calc) {
            calc.addValue(currentData);
            int count = calc.getCount();
            Sample newS = new Sample(res.getSampleLabel(), res.getTime(), 0, 0, 0, 0, 0, 0,
                    res.isSuccessful(), count, res.getEndTime(),res.getBytes(),
                    res.getThreadName());
            model.addRow(newS);
        }
        updateTextFields();
    }

    public synchronized void clearData() {
        model.clearData();
        currentData = 0;
        calc.clear();
        noSamplesField.setText("0"); // $NON-NLS-1$
        dataField.setText("0"); // $NON-NLS-1$
        averageField.setText("0"); // $NON-NLS-1$
        deviationField.setText("0"); // $NON-NLS-1$
        repaint();
    }

    @Override
    public String toString() {
        return "Show the samples in a table";
    }

    private void init() {
        this.setLayout(new BorderLayout());

        // MAIN PANEL
        JPanel mainPanel = new JPanel();
        Border margin = new EmptyBorder(10, 10, 5, 10);

        mainPanel.setBorder(margin);
        mainPanel.setLayout(new VerticalLayout(5, VerticalLayout.BOTH));

        // NAME
        mainPanel.add(makeTitlePanel());

        // Set up the table itself
        table = new JTable(model);
        table.getTableHeader().setDefaultRenderer(new HeaderAsPropertyRenderer());
        // table.getTableHeader().setReorderingAllowed(false);
        RendererUtils.applyRenderers(table, RENDERERS);

        tableScrollPanel = new JScrollPane(table);
        tableScrollPanel.setViewportBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2));

        // Set up footer of table which displays numerics of the graphs
        JPanel dataPanel = new JPanel();
        JLabel dataLabel = new JLabel(JMeterUtils.getResString("graph_results_latest_sample")); // $NON-NLS-1$
        dataLabel.setForeground(Color.black);
        dataField = new JTextField(5);
        dataField.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
        dataField.setEditable(false);
        dataField.setForeground(Color.black);
        dataField.setBackground(getBackground());
        dataPanel.add(dataLabel);
        dataPanel.add(dataField);

        JPanel averagePanel = new JPanel();
        JLabel averageLabel = new JLabel(JMeterUtils.getResString("graph_results_average")); // $NON-NLS-1$
        averageLabel.setForeground(Color.blue);
        averageField = new JTextField(5);
        averageField.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
        averageField.setEditable(false);
        averageField.setForeground(Color.blue);
        averageField.setBackground(getBackground());
        averagePanel.add(averageLabel);
        averagePanel.add(averageField);

        JPanel deviationPanel = new JPanel();
        JLabel deviationLabel = new JLabel(JMeterUtils.getResString("graph_results_deviation")); // $NON-NLS-1$
        deviationLabel.setForeground(Color.red);
        deviationField = new JTextField(5);
        deviationField.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
        deviationField.setEditable(false);
        deviationField.setForeground(Color.red);
        deviationField.setBackground(getBackground());
        deviationPanel.add(deviationLabel);
        deviationPanel.add(deviationField);

        JPanel noSamplesPanel = new JPanel();
        JLabel noSamplesLabel = new JLabel(JMeterUtils.getResString("graph_results_no_samples")); // $NON-NLS-1$

        noSamplesField = new JTextField(10);
        noSamplesField.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
        noSamplesField.setEditable(false);
        noSamplesField.setForeground(Color.black);
        noSamplesField.setBackground(getBackground());
        noSamplesPanel.add(noSamplesLabel);
        noSamplesPanel.add(noSamplesField);

        JPanel tableInfoPanel = new JPanel();
        tableInfoPanel.setLayout(new FlowLayout());
        tableInfoPanel.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));

        tableInfoPanel.add(noSamplesPanel);
        tableInfoPanel.add(dataPanel);
        tableInfoPanel.add(averagePanel);
        tableInfoPanel.add(deviationPanel);

        // Set up the table with footer
        JPanel tablePanel = new JPanel();

        tablePanel.setLayout(new BorderLayout());
        tablePanel.add(tableScrollPanel, BorderLayout.CENTER);
        tablePanel.add(tableInfoPanel, BorderLayout.SOUTH);

        // Add the main panel and the graph
        this.add(mainPanel, BorderLayout.NORTH);
        this.add(tablePanel, BorderLayout.CENTER);
    }

    public static class SampleSuccessFunctor extends Functor {
        public SampleSuccessFunctor(String methodName) {
            super(methodName);
        }

        @Override
        public Object invoke(Object p_invokee) {
            Boolean success = (Boolean)super.invoke(p_invokee);

            if(success != null) {
                if(success.booleanValue()) {
                    return imageSuccess;
                }
                else {
                    return imageFailure;
                }
            }
            else {
                return null;
            }
        }
    }
}