com.ebay.carad.os.vitalsigns.util
Class ChartUtil

java.lang.Object
  com.ebay.carad.os.vitalsigns.util.ChartUtil

public abstract class ChartUtil
extends java.lang.Object

This class produces a time-series chart, and saves it as a JPEG to the specified location.

Version:

$Id$

Author:

Jeremy Thomerson, Jeremy Kraybill

Field Summary

private static java.lang.String	CURRENT_DAY_LABEL Label string for legends.
private static java.lang.String	CURRENT_HOUR_LABEL Label string for legends.
private static java.lang.String	CURRENT_MONTH_LABEL Label string for legends.
private static java.lang.String	CURRENT_WEEK_LABEL Label string for legends.
private static java.lang.String	CURRENT_YEAR_LABEL Label string for legends.
static java.util.List	DAYLEGEND Legend for day charts.
static java.util.List	HOURLEGEND Legend for hour charts.
private static org.apache.log4j.Logger	LOGGER Class logger.
static java.util.List	MONTHLEGEND Legend for month charts.
private static java.lang.String	ONE_DAY_AGO_LABEL Label string for legends.
private static java.lang.String	ONE_MONTH_AGO_LABEL Label string for legends.
private static java.lang.String	ONE_WEEK_AGO_LABEL Label string for legends.
private static java.lang.String	ONE_YEAR_AGO_LABEL Label string for legends.
static java.util.List	WEEKLEGEND Legend for week charts.
static java.util.List	YEARLEGEND Legend for year charts.

Constructor Summary

ChartUtil()

Method Summary

private static void	encode(java.awt.image.BufferedImage img, java.io.OutputStream out, float quality)
static void	saveChart(org.jfree.chart.JFreeChart chart, java.lang.String path, int width, int height) Saves the given chart to the given destination JPG file at 85% quality.
static void	saveChart(org.jfree.chart.JFreeChart chart, java.lang.String path, int width, int height, float quality) Saves the given chart to the given destination JPG file.

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

private static final org.apache.log4j.Logger LOGGER

Class logger.

CURRENT_HOUR_LABEL

private static final java.lang.String CURRENT_HOUR_LABEL

Label string for legends.

See Also:

Constant Field Values

CURRENT_DAY_LABEL

private static final java.lang.String CURRENT_DAY_LABEL

Label string for legends.

See Also:

Constant Field Values

CURRENT_WEEK_LABEL

private static final java.lang.String CURRENT_WEEK_LABEL

Label string for legends.

See Also:

Constant Field Values

CURRENT_MONTH_LABEL

private static final java.lang.String CURRENT_MONTH_LABEL

Label string for legends.

See Also:

Constant Field Values

CURRENT_YEAR_LABEL

private static final java.lang.String CURRENT_YEAR_LABEL

Label string for legends.

See Also:

Constant Field Values

ONE_DAY_AGO_LABEL

private static final java.lang.String ONE_DAY_AGO_LABEL

Label string for legends.

See Also:

Constant Field Values

ONE_WEEK_AGO_LABEL

private static final java.lang.String ONE_WEEK_AGO_LABEL

Label string for legends.

See Also:

Constant Field Values

ONE_MONTH_AGO_LABEL

private static final java.lang.String ONE_MONTH_AGO_LABEL

Label string for legends.

See Also:

Constant Field Values

ONE_YEAR_AGO_LABEL

private static final java.lang.String ONE_YEAR_AGO_LABEL

Label string for legends.

See Also:

Constant Field Values

HOURLEGEND

public static final java.util.List HOURLEGEND

Legend for hour charts.

DAYLEGEND

public static final java.util.List DAYLEGEND

Legend for day charts.

WEEKLEGEND

public static final java.util.List WEEKLEGEND

Legend for week charts.

MONTHLEGEND

public static final java.util.List MONTHLEGEND

Legend for month charts.

YEARLEGEND

public static final java.util.List YEARLEGEND

Legend for year charts.

Constructor Detail

ChartUtil

public ChartUtil()

Method Detail

encode

private static void encode(java.awt.image.BufferedImage img,
                           java.io.OutputStream out,
                           float quality)
                    throws java.io.IOException

Throws:

java.io.IOException

saveChart

public static void saveChart(org.jfree.chart.JFreeChart chart,
                             java.lang.String path,
                             int width,
                             int height)

Saves the given chart to the given destination JPG file at 85% quality.

Parameters:

chart - the chart to save

path - the path of the image to save to

width - the width of the image in pixels

height - the height of the image in pixes

saveChart

public static void saveChart(org.jfree.chart.JFreeChart chart,
                             java.lang.String path,
                             int width,
                             int height,
                             float quality)

Saves the given chart to the given destination JPG file.

Parameters:

chart - the chart to save

path - the path of the image to save to

width - the width of the image in pixels

height - the height of the image in pixes

quality - the quality of the JPG, from 0 to 1.