yacy_search_server/htroot/Collage.java
orbiter 1995faef8d - refactoring of Colage back-end: move to plasma package
- renamed also the plasmaCrawlResults to have a consistent naming for url and image queues
- added a double-check for the images
- added additional queues for the images: all worse-quality images go there, so the queue can be used also if no sizes are given; no image is lost
- added a cleanup for the stacks so they cannot flood the memory

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4722 6c8d7289-2bf4-0310-a012-ef5d649a1542
2008-04-21 22:42:49 +00:00

112 lines
5.5 KiB
Java
Executable File

// Collage.java
// -----------------------
// part of YaCy
// (C) by Detlef Reichl; detlef!reichl()gmx!org
// Pforzheim, Germany, 2008
//
// 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.util.Random;
import de.anomic.http.httpHeader;
import de.anomic.plasma.plasmaCrawlResultImages;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
public class Collage {
private static final int fifoMax = 20;
private static final int posXMax = 800;
private static final int posYMax = 500;
private static int fifoPos = -1;
private static int fifoSize = 0;
private static long zIndex = 0;
private static plasmaCrawlResultImages.OriginEntry origins[] = new plasmaCrawlResultImages.OriginEntry[fifoMax];
private static Integer imgWidth[] = new Integer[fifoMax];
private static Integer imgHeight[] = new Integer[fifoMax];
private static Integer imgPosX[] = new Integer[fifoMax];
private static Integer imgPosY[] = new Integer[fifoMax];
private static long imgZIndex[] = new long[fifoMax];
private static final Random rand = new Random();
public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch<?> env) {
final serverObjects prop = new serverObjects();
final plasmaSwitchboard sb = (plasmaSwitchboard) env;
final boolean authenticated = sb.adminAuthenticated(header) >= 2;
plasmaCrawlResultImages.OriginEntry nextOrigin = plasmaCrawlResultImages.next(!authenticated);
if (nextOrigin != null) {
if (fifoSize == 0 || origins[fifoPos] != nextOrigin) {
fifoPos = fifoPos + 1 == fifoMax ? 0 : fifoPos + 1;
fifoSize = fifoSize + 1 > fifoMax ? fifoMax : fifoSize + 1;
origins[fifoPos] = nextOrigin;
float scale = rand.nextFloat() * 1.5f + 1;
imgWidth[fifoPos] = (int) (((float)nextOrigin.imageEntry.width()) / scale);
imgHeight[fifoPos] = (int) (((float)nextOrigin.imageEntry.height()) / scale);
imgPosX[fifoPos] = rand.nextInt(posXMax);
imgPosY[fifoPos] = rand.nextInt(posYMax);
imgZIndex[fifoPos] = zIndex;
zIndex += 1;
}
}
if (fifoSize > 0) {
prop.put("imgurl", "1");
for (int i = 0; i < fifoSize; i++)
prop.put("imgurl_list_" + i + "_url",
"<a href=\"" + origins[i].baseURL.toNormalform(true, false) + "\">"
+ "<img src=\"" + origins[i].imageEntry.url().toNormalform(true, false) + "\" style=\"width:" + imgWidth[i]
+ "px;height:" + imgHeight[i]
+ "px;position:absolute;top:" + imgPosY[i]
+ "px;left:" + imgPosX[i]
+ "px;z-index:" + imgZIndex[i] + "\" title=\"" + origins[i].baseURL.toNormalform(true, false) + "\">"
+ "</a><br>");
prop.put("imgurl_list", fifoSize);
} else {
prop.put("imgurl", "0");
}
prop.putNum("refresh", Math.max(2, Math.min(5, 500 / (1 + plasmaCrawlResultImages.queueSize(!authenticated)))));
prop.put("privateQueueSize", plasmaCrawlResultImages.privateQueueHighSize() + "+" + plasmaCrawlResultImages.privateQueueLowSize());
prop.put("publicQueueSize", plasmaCrawlResultImages.publicQueueHighSize() + "+" + plasmaCrawlResultImages.publicQueueLowSize());
return prop;
}
}