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@cosenary cosenary/Benchmark.java
Last active Dec 19, 2015

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Simple Benchmark chart class in Java.
/**
* Benchmark chart.
* Fancy benchmark chart generator.
*
* @since 4.04.2013
* @author Christian Metz | christian@metzweb.net
* @version 1.0
*/
class Benchmark {
private final String CHART_API = "https://chart.googleapis.com/chart";
private final LinkedHashMap<String, Long> benchmarks = new LinkedHashMap<>();
private int width;
private int height;
/**
* Basic custom constructor.
*/
public Benchmark() {
this(400, 250);
}
/**
* Size custom constructor.
*
* @param width
* @param height
*/
public Benchmark(int width, int height) {
this.width = width;
this.height = height;
}
/**
* Add benchmark.
*
* @param title Description of the benchmark.
* @param value Measured value (e.g. time in ms.)
*/
public void add(String title, long value) {
benchmarks.put(title, value);
}
/**
* Get chart image.
*
* @return Chart image icon.
*/
public ImageIcon getChart() {
// assemble API call
String apiCall = CHART_API;
apiCall += "?cht=bhg&chs=" + width + "x" + height;
String titles = "";
StringBuilder measurements = new StringBuilder();
for (Map.Entry<String, Long> entry : benchmarks.entrySet()) {
titles += entry.getKey() + "|";
measurements.insert(0, entry.getValue() + ",");
}
apiCall += "&chd=t:" + measurements.substring(0, measurements.length() - 1);
apiCall += "&chds=0,10000&chco=4d89f9,c6d9fd,00B88A&chds=0,10000&chbh=a&chxs=0,000000,0,0,_&chxt=y&chm=N,000000,0,,10|N,000000,1,,10|N,000000,2,,10&chxt=x,y";
apiCall += "&chxl=1:|" + titles;
try {
URL url = new URL(apiCall);
BufferedImage image = ImageIO.read(url);
return new ImageIcon(image);
} catch (Exception e) {
System.err.println("Sorry - Chart creation failed :(");
}
return null;
}
}
/**
* Test class.
*/
class Main {
public static void main(String[] args) {
// create new instance
Benchmark benchmark = new Benchmark();
// add some data
benchmark.add("Pizza", 10000);
benchmark.add("Cake", 3000);
benchmark.add("Chocolat", 8000);
// generate chart
ImageIcon chart = benchmark.getChart();
// display it with a JOptionPane
JOptionPane.showMessageDialog(null, new JLabel(chart), "Elvira's Benchmark chart!", JOptionPane.INFORMATION_MESSAGE);
}
}
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