// NetworkPicture.java // ----------------------- // part of YaCy // (C) by Michael Peter Christen; mc@anomic.de // first published on http://www.anomic.de // Frankfurt, Germany, 2005 // Created 08.10.2005 // // $LastChangedDate: 2005-09-29 02:24:09 +0200 (Thu, 29 Sep 2005) $ // $LastChangedRevision: 811 $ // $LastChangedBy: orbiter $ // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // // Using this software in any meaning (reading, learning, copying, compiling, // running) means that you agree that the Author(s) is (are) not responsible // for cost, loss of data or any harm that may be caused directly or indirectly // by usage of this softare or this documentation. The usage of this software // is on your own risk. The installation and usage (starting/running) of this // software may allow other people or application to access your computer and // any attached devices and is highly dependent on the configuration of the // software which must be done by the user of the software; the author(s) is // (are) also not responsible for proper configuration and usage of the // software, even if provoked by documentation provided together with // the software. // // Any changes to this file according to the GPL as documented in the file // gpl.txt aside this file in the shipment you received can be done to the // lines that follows this copyright notice here, but changes must not be // done inside the copyright notive above. A re-distribution must contain // the intact and unchanged copyright notice. // Contributions and changes to the program code must be marked as such. import java.awt.image.BufferedImage; import java.util.Enumeration; import java.util.Date; import de.anomic.http.httpHeader; import de.anomic.server.serverObjects; import de.anomic.server.serverSwitch; import de.anomic.tools.ImagePainter; import de.anomic.yacy.yacyCore; import de.anomic.yacy.yacySeed; // draw a picture of the yacy network public class NetworkPicture { private static final int width = 640; private static final int height = 420; private static final int radius = Math.min(width, height) / 5; public static BufferedImage respond(httpHeader header, serverObjects post, serverSwitch env) { ImagePainter img = new ImagePainter(width, height, ImagePainter.TRANSPARENT); img.setMode(ImagePainter.MODE_ADD); if (yacyCore.seedDB == null) return img.toImage(true); // no other peers known int size = yacyCore.seedDB.sizeConnected(); if (size == 0) return img.toImage(true); // no other peers known // draw network circle img.setColor("004020"); img.arc(width / 2, height / 2, radius - 20, radius + 20, 0, 360); //System.out.println("Seed Maximum distance is " + yacySeed.maxDHTDistance); //System.out.println("Seed Minimum distance is " + yacySeed.minDHTNumber); final int maxCount = 300; yacySeed seed; int angle; long lastseen; // draw connected senior and principals int count = 0; int totalCount = 0; Enumeration e = yacyCore.seedDB.seedsConnected(true, false, null); while (e.hasMoreElements() && count < maxCount) { seed = (yacySeed) e.nextElement(); if (seed != null) { drawPeer(img, width / 2, height / 2, radius, seed, "000040", "B0FFB0"); count++; } } totalCount += count; // draw disconnected senior and principals that have been seen lately count = 0; e = yacyCore.seedDB.seedsSortedDisconnected(true, yacySeed.STR_LASTSEEN); while (e.hasMoreElements() && count < maxCount) { seed = (yacySeed) e.nextElement(); if (seed != null) { lastseen = Math.abs((System.currentTimeMillis() - seed.getLastSeenTime()) / 1000 / 60); if (lastseen > 120) break; // we have enough, this list is sorted so we don't miss anything drawPeer(img, width / 2, height / 2, radius, seed, "101010", "802000"); count++; } } totalCount += count; // draw juniors that have been seen lately count = 0; e = yacyCore.seedDB.seedsSortedPotential(true, yacySeed.STR_LASTSEEN); while (e.hasMoreElements() && count < maxCount) { seed = (yacySeed) e.nextElement(); if (seed != null) { lastseen = Math.abs((System.currentTimeMillis() - seed.getLastSeenTime()) / 1000 / 60); if (lastseen > 120) break; // we have enough, this list is sorted so we don't miss anything drawPeer(img, width / 2, height / 2, radius, seed, "202000", "A0A000"); count++; } } totalCount += count; // draw my own peer drawPeer(img, width / 2, height / 2, radius, yacyCore.seedDB.mySeed, "800000", "FFFFFF"); // draw description img.setColor("FFFFFF"); img.print(2, 8, "YACY NETWORK PICTURE", true); img.print(2, 16, "DRAWING OF " + totalCount + " SELECTED PEERS", true); img.print(width - 2, 8, "SNAPSHOT FROM " + new Date().toString().toUpperCase(), false); return img.toImage(true); } private static void drawPeer(ImagePainter img, int x, int y, int radius, yacySeed seed, String colorDot, String colorText) { int angle = (int) ((long) 360 * (seed.dhtDistance() / (yacySeed.maxDHTDistance / (long) 10000)) / (long) 10000); //System.out.println("Seed " + seed.hash + " has distance " + seed.dhtDistance() + ", angle = " + angle); int linelength = radius + 60 + (seed.hash.hashCode() % (radius / 2)); int dotsize = 6 + 2 * (int) (seed.getLinkCount() / 500000L); if (dotsize > 18) dotsize = 18; img.setColor(colorDot); img.arcDot(x, y, radius, dotsize, angle); img.setColor(colorText); img.arcLine(x, y, radius + 18, linelength, angle); img.arcPrint(x, y, linelength, angle, seed.getName().toUpperCase()); } }