echelon/i2p.i2p
1
0
Fork 0
forked from I2P_Developers/i2p.i2p
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

1st cut

Browse Source
This commit is contained in:
zzz
2011-03-17 02:07:08 +00:00
parent be4be9716d
commit 8461beba1c
5 changed files with 100 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files

66
apps/routerconsole/java/src/net/i2p/router/web/SummaryRenderer.java
View File

@ -1,9 +1,16 @@
package net.i2p.router.web;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.OutputStream;
import javax.imageio.ImageIO;
import javax.imageio.stream.ImageOutputStream;
import javax.imageio.stream.MemoryCacheImageOutputStream;
import net.i2p.I2PAppContext;
import net.i2p.data.DataHelper;
import net.i2p.stat.Rate;
@ -38,6 +45,7 @@ class SummaryRenderer {
* DOM level 3 load and store support. Perhaps we can bundle that, or
* specify who can get it from where, etc.
*
* @deprecated unsed
*/
public static synchronized void render(I2PAppContext ctx, OutputStream out, String filename) throws IOException {
long end = ctx.clock().now() - 60*1000;
@ -45,10 +53,21 @@ class SummaryRenderer {
try {
RrdGraphDefTemplate template = new RrdGraphDefTemplate(filename);
RrdGraphDef def = template.getRrdGraphDef();
def.setTimePeriod(start/1000, end/1000); // ignore the periods in the template
def.setTimeSpan(start/1000, end/1000); // ignore the periods in the template
// FIXME not clear how to get the height and width from the template
int width = GraphHelper.DEFAULT_X;
int height = GraphHelper.DEFAULT_Y;
def.setWidth(width);
def.setHeight(height);
RrdGraph graph = new RrdGraph(def);
byte img[] = graph.getPNGBytes();
out.write(img);
int totalWidth = graph.getRrdGraphInfo().getWidth();
int totalHeight = graph.getRrdGraphInfo().getHeight();
BufferedImage img = new BufferedImage(totalWidth, totalHeight, BufferedImage.TYPE_USHORT_565_RGB);
Graphics gfx = img.getGraphics();
graph.render(gfx);
ImageOutputStream ios = new MemoryCacheImageOutputStream(out);
ImageIO.write(img, "png", ios);
} catch (RrdException re) {
//_log.error("Error rendering " + filename, re);
throw new IOException("Error plotting: " + re.getMessage());
@ -58,7 +77,8 @@ class SummaryRenderer {
}
}
public void render(OutputStream out) throws IOException { render(out, -1, -1, false, false, false, false, -1, false); }
public void render(OutputStream out) throws IOException { render(out, GraphHelper.DEFAULT_X, GraphHelper.DEFAULT_Y,
false, false, false, false, -1, false); }
public void render(OutputStream out, int width, int height, boolean hideLegend, boolean hideGrid, boolean hideTitle, boolean showEvents, int periodCount, boolean showCredit) throws IOException {
long end = _listener.now() - 60*1000;
@ -69,13 +89,13 @@ class SummaryRenderer {
//long begin = System.currentTimeMillis();
try {
RrdGraphDef def = new RrdGraphDef();
def.setTimePeriod(start/1000, 0);
def.setLowerLimit(0d);
def.setTimeSpan(start/1000, end/1000);
def.setMinValue(0d);
String name = _listener.getRate().getRateStat().getName();
// heuristic to set K=1024
if ((name.startsWith("bw.") || name.indexOf("Size") >= 0 || name.indexOf("Bps") >= 0 || name.indexOf("memory") >= 0)
&& !showEvents)
def.setBaseValue(1024);
def.setBase(1024);
if (!hideTitle) {
String title;
String p;
@ -109,11 +129,11 @@ class SummaryRenderer {
descr = _(_listener.getRate().getRateStat().getDescription());
}
def.datasource(plotName, path, plotName, "AVERAGE", "MEMORY");
def.area(plotName, Color.BLUE, descr + "@r");
def.area(plotName, Color.BLUE, descr + "\\r");
if (!hideLegend) {
def.gprint(plotName, "AVERAGE", _("avg") + ": @2@s");
def.gprint(plotName, "MAX", ' ' + _("max") + ": @2@s");
def.gprint(plotName, "LAST", ' ' + _("now") + ": @2@s@r");
def.gprint(plotName, "AVERAGE", _("avg") + ": %.2f %s");
def.gprint(plotName, "MAX", ' ' + _("max") + ": %.2f %S");
def.gprint(plotName, "LAST", ' ' + _("now") + ": %.2f %S\\r");
}
if (!showCredit)
def.setShowSignature(false);
@ -126,24 +146,28 @@ class SummaryRenderer {
def.line(dsNames[1], Color.RED, "Events per period");
*/
if (hideLegend)
def.setShowLegend(false);
def.setNoLegend(true);
if (hideGrid) {
def.setGridX(false);
def.setGridY(false);
def.setDrawXGrid(false);
def.setDrawYGrid(false);
}
//System.out.println("rendering: path=" + path + " dsNames[0]=" + dsNames[0] + " dsNames[1]=" + dsNames[1] + " lsnr.getName=" + _listener.getName());
def.setAntiAliasing(false);
//System.out.println("Rendering: \n" + def.exportXmlTemplate());
//System.out.println("*****************\nData: \n" + _listener.getData().dump());
def.setWidth(width);
def.setHeight(height);
RrdGraph graph = new RrdGraph(def);
int totalWidth = graph.getRrdGraphInfo().getWidth();
int totalHeight = graph.getRrdGraphInfo().getHeight();
BufferedImage img = new BufferedImage(totalWidth, totalHeight, BufferedImage.TYPE_USHORT_565_RGB);
Graphics gfx = img.getGraphics();
graph.render(gfx);
ImageOutputStream ios = new MemoryCacheImageOutputStream(out);
ImageIO.write(img, "png", ios);
//System.out.println("Graph created");
byte data[] = null;
if ( (width <= 0) || (height <= 0) )
data = graph.getPNGBytes();
else
data = graph.getPNGBytes(width, height);
//long timeToPlot = System.currentTimeMillis() - begin;
out.write(data);
//File t = File.createTempFile("jrobinData", ".xml");
//_listener.getData().dumpXml(new FileOutputStream(t));
//System.out.println("plotted: " + (data != null ? data.length : 0) + " bytes in " + timeToPlot