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yacy_search_server/htroot/NetworkPicture.java

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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
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
// 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 de.anomic.http.httpHeader;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.ymage.ymagePainter;
import de.anomic.plasma.plasmaGrafics;
// draw a picture of the yacy network
public class NetworkPicture {
public static ymagePainter respond(httpHeader header, serverObjects post, serverSwitch env) {
int width = 640;
int height = 480;
int passiveLimit = 300;
int potentialLimit = 300;
int maxCount = 1000;
if (post != null) {
width = post.getInt("width", 640);
height = post.getInt("height", 420);
passiveLimit = post.getInt("pal", 300);
potentialLimit = post.getInt("pol", 300);
maxCount = post.getInt("max", 1000);
}
//too small values lead to an error, too big to huge CPU/memory consumption, resulting in possible DOS.
if (width < 320 ) width = 320;
if (width > 1920) width = 1920;
if (height < 240) height = 240;
if (height > 1200) height = 1200;
if (passiveLimit > 1000000) passiveLimit = 1000000;
if (potentialLimit > 1000000) potentialLimit = 1000000;
if (maxCount > 1000) maxCount = 1000;
return plasmaGrafics.getNetworkPicture(10000, width, height, passiveLimit, potentialLimit, maxCount);
}
}