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120 lines
4.8 KiB
120 lines
4.8 KiB
// plasmaSearchImages.java
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// -----------------------
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// part of YACY
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// (C) by Michael Peter Christen; mc@anomic.de
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2006
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// Created: 04.04.2006
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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package de.anomic.plasma;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.TreeSet;
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import de.anomic.htmlFilter.htmlFilterContentScraper;
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import de.anomic.htmlFilter.htmlFilterImageEntry;
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import de.anomic.server.serverDate;
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public final class plasmaSearchImages {
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private TreeSet images;
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public plasmaSearchImages(plasmaSnippetCache sc, long maxTime, URL url, int depth) {
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long start = System.currentTimeMillis();
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this.images = new TreeSet();
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if (maxTime > 10) {
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byte[] res = sc.getResource(url, true, (int) maxTime);
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if (res != null) {
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plasmaParserDocument document = sc.parseDocument(url, res);
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// add the image links
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this.addAll(document.getImages());
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// add also links from pages one step deeper, if depth > 0
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if (depth > 0) {
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Map hl = document.getHyperlinks();
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Iterator i = hl.entrySet().iterator();
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while (i.hasNext()) {
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Map.Entry e = (Map.Entry) i.next();
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String nexturlstring = htmlFilterContentScraper.urlNormalform(null, (String) e.getKey());
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try {
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addAll(new plasmaSearchImages(sc, serverDate.remainingTime(start, maxTime, 10), new URL(nexturlstring), depth - 1));
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} catch (MalformedURLException e2) {}
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}
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}
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}
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}
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}
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public plasmaSearchImages(plasmaSnippetCache sc, long maxTime, plasmaSearchResult sres, int depth) {
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long start = System.currentTimeMillis();
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this.images = new TreeSet();
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plasmaCrawlLURL.Entry urlentry;
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while (sres.hasMoreElements()) {
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urlentry = sres.nextElement();
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addAll(new plasmaSearchImages(sc, serverDate.remainingTime(start, maxTime, 10), urlentry.url(), depth));
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}
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}
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public void addAll(plasmaSearchImages m) {
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synchronized (m.images) {
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addAll(m.images);
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}
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}
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private void addAll(TreeSet ts) {
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Iterator i = ts.iterator();
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htmlFilterImageEntry ie;
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while (i.hasNext()) {
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ie = (htmlFilterImageEntry) i.next();
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if (images.contains(ie)) {
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if ((ie.height() > 0) && (ie.width() > 0)) images.add(ie);
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} else {
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images.add(ie);
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}
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}
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}
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public Iterator entries() {
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// returns htmlFilterImageEntry - Objects
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return images.iterator();
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}
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}
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