net.i2p.router.web

Class GraphRenderer

java.lang.Object

net.i2p.router.web.GraphRenderer

class GraphRenderer
extends Object

Generate the RRD graph png images, including the combined rate graph.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) String	DEFAULT_FONT_NAME
(package private) String	DEFAULT_LEGEND_FONT_NAME
(package private) String	DEFAULT_TITLE_FONT_NAME
(package private) GraphicsEnvironment	e
(package private) List<String>	fontlist
(package private) String[]	sysfonts

Constructor Summary

Constructors

Constructor and Description
GraphRenderer(I2PAppContext ctx, GraphListener lsnr)

Method Summary

Modifier and Type	Method and Description
void	render(OutputStream out)
void	render(OutputStream out, int width, int height, boolean hideLegend, boolean hideGrid, boolean hideTitle, boolean showEvents, int periodCount, int endp, boolean showCredit) Single graph.
void	render(OutputStream out, int width, int height, boolean hideLegend, boolean hideGrid, boolean hideTitle, boolean showEvents, int periodCount, int endp, boolean showCredit, GraphListener lsnr2, String titleOverride) Single or two-data-source graph.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_FONT_NAME

String DEFAULT_FONT_NAME

DEFAULT_LEGEND_FONT_NAME

String DEFAULT_LEGEND_FONT_NAME

DEFAULT_TITLE_FONT_NAME

String DEFAULT_TITLE_FONT_NAME

e

GraphicsEnvironment e

fontlist

List<String> fontlist

sysfonts

String[] sysfonts

Constructor Detail

GraphRenderer

public GraphRenderer(I2PAppContext ctx,
                     GraphListener lsnr)

Method Detail

render

public void render(OutputStream out)
            throws IOException

Throws:

IOException

render

public void render(OutputStream out,
                   int width,
                   int height,
                   boolean hideLegend,
                   boolean hideGrid,
                   boolean hideTitle,
                   boolean showEvents,
                   int periodCount,
                   int endp,
                   boolean showCredit)
            throws IOException

Single graph.

Parameters:

endp - number of periods before now

Throws:

IOException

render

public void render(OutputStream out,
                   int width,
                   int height,
                   boolean hideLegend,
                   boolean hideGrid,
                   boolean hideTitle,
                   boolean showEvents,
                   int periodCount,
                   int endp,
                   boolean showCredit,
                   GraphListener lsnr2,
                   String titleOverride)
            throws IOException

Single or two-data-source graph.

Parameters:

lsnr2 - 2nd data source to plot on same graph, or null. Not recommended for events.

titleOverride - If non-null, overrides the title

Throws:

IOException