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added new network picture at Network menu using the new image-servlet…
… method git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@880 6c8d7289-2bf4-0310-a012-ef5d649a1542
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orbiter
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Oct 8, 2005
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| // 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. | ||
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| import java.awt.image.BufferedImage; | ||
| import java.util.Enumeration; | ||
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| import de.anomic.http.httpHeader; | ||
| import de.anomic.server.serverObjects; | ||
| import de.anomic.server.serverSwitch; | ||
| import de.anomic.tools.ImagePainter; | ||
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| import de.anomic.yacy.yacyCore; | ||
| import de.anomic.yacy.yacySeed; | ||
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| // draw a picture of the yacy network | ||
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| public class NetworkPicture { | ||
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| private static final int width = 640; | ||
| private static final int height = 420; | ||
| private static final int radius = Math.min(width, height) / 5; | ||
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| public static BufferedImage respond(httpHeader header, serverObjects post, serverSwitch env) { | ||
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| ImagePainter img = new ImagePainter(width, height, ImagePainter.TRANSPARENT); | ||
| img.setMode(ImagePainter.MODE_ADD); | ||
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| 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 | ||
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| // draw network circle | ||
| img.setColor("004020"); | ||
| img.arc(width / 2, height / 2, radius - 20, radius + 20, 0, 360); | ||
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| final int maxCount = 300; | ||
| yacySeed seed; | ||
| int count = 0; | ||
| int angle; | ||
| img.setColor(ImagePainter.ADDITIVE_BLACK); | ||
| //System.out.println("Seed Maximum distance is " + yacySeed.maxDHTDistance); | ||
| //System.out.println("Seed Minimum distance is " + yacySeed.minDHTNumber); | ||
| 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", "A0A0A0"); | ||
| count++; | ||
| } | ||
| } | ||
| count = 0; | ||
| e = yacyCore.seedDB.seedsPotential(true, false, null); | ||
| long lastseen; | ||
| while (e.hasMoreElements() && count < maxCount) { | ||
| seed = (yacySeed) e.nextElement(); | ||
| if (seed != null) { | ||
| lastseen = Math.abs((System.currentTimeMillis() - seed.getLastSeenTime()) / 1000 / 60); | ||
| if (lastseen < 60) drawPeer(img, width / 2, height / 2, radius, seed, "100010", "606060"); | ||
| count++; | ||
| } | ||
| } | ||
| drawPeer(img, width / 2, height / 2, radius, yacyCore.seedDB.mySeed, "800000", "D0D0D0"); | ||
| return img.toImage(true); | ||
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| } | ||
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| 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()); | ||
| } | ||
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| } |
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