unusedClasses.MemoryUsageDemo.java Source code

Introduction

Here is the source code for unusedClasses.MemoryUsageDemo.java

Source

/*
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package unusedClasses;

import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.data.time.Millisecond;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;

public class MemoryUsageDemo extends JPanel {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private TimeSeries total = new TimeSeries("Total Memory");
    private TimeSeries free;

    public MemoryUsageDemo(int paramInt) {
        super(new BorderLayout());
        this.total.setMaximumItemAge(paramInt);
        this.free = new TimeSeries("Free Memory");
        this.free.setMaximumItemAge(paramInt);
        TimeSeriesCollection localTimeSeriesCollection = new TimeSeriesCollection();
        localTimeSeriesCollection.addSeries(this.total);
        localTimeSeriesCollection.addSeries(this.free);
        DateAxis localDateAxis = new DateAxis("Time");
        NumberAxis localNumberAxis = new NumberAxis("Memory");
        localDateAxis.setTickLabelFont(new Font("SansSerif", 0, 12));
        localNumberAxis.setTickLabelFont(new Font("SansSerif", 0, 12));
        localDateAxis.setLabelFont(new Font("SansSerif", 0, 14));
        localNumberAxis.setLabelFont(new Font("SansSerif", 0, 14));
        XYLineAndShapeRenderer localXYLineAndShapeRenderer = new XYLineAndShapeRenderer(true, false);
        localXYLineAndShapeRenderer.setSeriesPaint(0, Color.red);
        localXYLineAndShapeRenderer.setSeriesPaint(1, Color.green);
        localXYLineAndShapeRenderer.setSeriesStroke(0, new BasicStroke(3.0F, 0, 2));
        localXYLineAndShapeRenderer.setSeriesStroke(1, new BasicStroke(3.0F, 0, 2));
        XYPlot localXYPlot = new XYPlot(localTimeSeriesCollection, localDateAxis, localNumberAxis,
                localXYLineAndShapeRenderer);
        localDateAxis.setAutoRange(true);
        localDateAxis.setLowerMargin(0.0D);
        localDateAxis.setUpperMargin(0.0D);
        localDateAxis.setTickLabelsVisible(true);
        localNumberAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
        JFreeChart localJFreeChart = new JFreeChart("JVM Memory Usage", new Font("SansSerif", 1, 24), localXYPlot,
                true);
        ChartUtilities.applyCurrentTheme(localJFreeChart);
        ChartPanel localChartPanel = new ChartPanel(localJFreeChart, true);
        localChartPanel.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4),
                BorderFactory.createLineBorder(Color.black)));
        add(localChartPanel);
    }

    private void addTotalObservation(double paramDouble) {
        this.total.add(new Millisecond(), paramDouble);
    }

    private void addFreeObservation(double paramDouble) {
        this.free.add(new Millisecond(), paramDouble);
    }

    public static void main(String[] paramArrayOfString) {
        JFrame localJFrame = new JFrame("Memory Usage Demo");
        MemoryUsageDemo localMemoryUsageDemo = new MemoryUsageDemo(30000);
        localJFrame.getContentPane().add(localMemoryUsageDemo, "Center");
        localJFrame.setBounds(200, 120, 600, 280);
        localJFrame.setVisible(true);
        MemoryUsageDemo tmp56_55 = localMemoryUsageDemo;
        tmp56_55.getClass();
        tmp56_55.new DataGenerator(100).start();
        localJFrame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent paramWindowEvent) {
                System.exit(0);
            }
        });
    }

    class DataGenerator extends Timer implements ActionListener {
        /**
        * 
        */
        private static final long serialVersionUID = 1L;

        DataGenerator(int paramInt) {
            super(paramInt, null);
            addActionListener(this);
        }

        public void actionPerformed(ActionEvent paramActionEvent) {
            long l1 = Runtime.getRuntime().freeMemory();
            long l2 = Runtime.getRuntime().totalMemory();
            MemoryUsageDemo.this.addTotalObservation(l2);
            MemoryUsageDemo.this.addFreeObservation(l1);
        }
    }
}