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yacy_search_server/source/de/anomic/plasma/plasmaSearchImages.java

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// plasmaSearchImages.java
// -----------------------
// part of YACY
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2006
// Created: 04.04.2006
//
// 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.
package de.anomic.plasma;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.util.HashMap;
import java.util.Iterator;
import de.anomic.htmlFilter.htmlFilterContentScraper;
import de.anomic.htmlFilter.htmlFilterImageEntry;
import de.anomic.plasma.parser.ParserException;
import de.anomic.server.serverDate;
import de.anomic.yacy.yacyURL;
public final class plasmaSearchImages {
private HashMap<String, htmlFilterImageEntry> images;
public plasmaSearchImages(long maxTime, yacyURL url, int depth) {
long start = System.currentTimeMillis();
this.images = new HashMap<String, htmlFilterImageEntry>();
if (maxTime > 10) {
Object[] resource = plasmaSnippetCache.getResource(url, true, (int) maxTime, false);
InputStream res = (InputStream) resource[0];
Long resLength = (Long) resource[1];
if (res != null) {
plasmaParserDocument document = null;
try {
// parse the document
document = plasmaSnippetCache.parseDocument(url, resLength.longValue(), res);
} catch (ParserException e) {
// parsing failed
} finally {
try { res.close(); } catch (Exception e) {/* ignore this */}
}
if (document == null) return;
// add the image links
htmlFilterContentScraper.addAllImages(this.images, document.getImages());
// add also links from pages one step deeper, if depth > 0
if (depth > 0) {
Iterator<yacyURL> i = document.getHyperlinks().keySet().iterator();
String nexturlstring;
while (i.hasNext()) {
try {
nexturlstring = i.next().toNormalform(true, true);
addAll(new plasmaSearchImages(serverDate.remainingTime(start, maxTime, 10), new yacyURL(nexturlstring, null), depth - 1));
} catch (MalformedURLException e1) {
e1.printStackTrace();
}
}
}
document.close();
}
}
}
public void addAll(plasmaSearchImages m) {
synchronized (m.images) {
htmlFilterContentScraper.addAllImages(this.images, m.images);
}
}
public Iterator<htmlFilterImageEntry> entries() {
// returns htmlFilterImageEntry - Objects
return images.values().iterator();
}
}