org.javasimon.utils
Class GoogleChartImageGenerator

java.lang.Object
  org.javasimon.utils.GoogleChartImageGenerator

public final class GoogleChartImageGenerator
extends Object

Produces URLs for Google Chart Image API - column type. http://code.google.com/apis/chart/image/

Author:

Richard "Virgo" Richter

Field Summary

private static int	BAR_SPACING
private static int	BAR_SPACING_MAX_MIN
private static int	BAR_WIDTH
private double	divisor
private boolean	first
private static int	FIXED_WIDTH
private static int	IMAGE_HEIGHT
private double	max
private static DecimalFormat	NUMBER_FORMAT
private static List<Replacer>	REPLACERS
private StopwatchSample[]	samples
private boolean	showMaxMin
private static int	TEN_BASE
private String	title
private static String	TYPE_BAR1
private static String	TYPE_BAR2
private String	unit
private static String	URL_START

Constructor Summary

private

GoogleChartImageGenerator(StopwatchSample[] samples, String title, double divisor, String unit, boolean showMaxMin)

Method Summary

private String	addValueToAxis(StringBuilder axis, double value)
static String	barChart(StopwatchSample[] samples, String title, double divisor, String unit, boolean showMaxMin) Generates Google bar chart URL for the provided samples.
private static String	encode(String s)
private String	process()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FIXED_WIDTH

private static final int FIXED_WIDTH

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Constant Field Values

BAR_WIDTH

private static final int BAR_WIDTH

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Constant Field Values

BAR_SPACING

private static final int BAR_SPACING

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Constant Field Values

BAR_SPACING_MAX_MIN

private static final int BAR_SPACING_MAX_MIN

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Constant Field Values

IMAGE_HEIGHT

private static final int IMAGE_HEIGHT

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Constant Field Values

URL_START

private static final String URL_START

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Constant Field Values

TYPE_BAR1

private static final String TYPE_BAR1

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Constant Field Values

TYPE_BAR2

private static final String TYPE_BAR2

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Constant Field Values

NUMBER_FORMAT

private static final DecimalFormat NUMBER_FORMAT

REPLACERS

private static final List<Replacer> REPLACERS

TEN_BASE

private static final int TEN_BASE

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Constant Field Values

samples

private StopwatchSample[] samples

title

private String title

divisor

private double divisor

unit

private String unit

showMaxMin

private boolean showMaxMin

max

private double max

first

private boolean first

Constructor Detail

GoogleChartImageGenerator

private GoogleChartImageGenerator(StopwatchSample[] samples,
                                  String title,
                                  double divisor,
                                  String unit,
                                  boolean showMaxMin)

Method Detail

barChart

public static String barChart(StopwatchSample[] samples,
                              String title,
                              double divisor,
                              String unit,
                              boolean showMaxMin)

Generates Google bar chart URL for the provided samples.

Parameters:

samples - stopwatch samples

title - chart title

divisor - value divisor. For example: if values are in ns and ms are required, divisor should be set to 1000000.

unit - unit shown after values under every bar

showMaxMin - true if additional datasets for max and min values should be shown

Returns:

URL generating the bar chart

process

private String process()

addValueToAxis

private String addValueToAxis(StringBuilder axis,
                              double value)

encode

private static String encode(String s)