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101 lines
4.1 KiB
101 lines
4.1 KiB
// plasmaSearchImages.java
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// -----------------------
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// part of YACY
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// (C) by Michael Peter Christen; mc@yacy.net
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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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package de.anomic.plasma;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.MalformedURLException;
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import java.util.HashMap;
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import java.util.Iterator;
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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.kelondro.util.DateFormatter;
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import de.anomic.kelondro.util.Log;
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import de.anomic.plasma.parser.ParserException;
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import de.anomic.yacy.yacyURL;
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public final class plasmaSearchImages {
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private final HashMap<String, htmlFilterImageEntry> images;
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public plasmaSearchImages(final long maxTime, final yacyURL url, final int depth, final boolean indexing) {
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final long start = System.currentTimeMillis();
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this.images = new HashMap<String, htmlFilterImageEntry>();
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if (maxTime > 10) {
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Object[] resource = null;
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try {
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resource = plasmaSnippetCache.getResource(url, true, (int) maxTime, false, indexing);
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} catch (IOException e) {
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Log.logWarning("ViewImage", "cannot load: " + e.getMessage());
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}
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if (resource == null) return;
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final InputStream res = (InputStream) resource[0];
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final Long resLength = (Long) resource[1];
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if (res != null) {
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plasmaParserDocument document = null;
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try {
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// parse the document
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document = plasmaSnippetCache.parseDocument(url, resLength.longValue(), res);
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} catch (final ParserException e) {
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// parsing failed
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Log.logWarning("ViewImage", "cannot parse: " + e.getMessage());
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} finally {
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try { res.close(); } catch (final Exception e) {/* ignore this */}
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}
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if (document == null) return;
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// add the image links
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htmlFilterContentScraper.addAllImages(this.images, 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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final Iterator<yacyURL> i = document.getHyperlinks().keySet().iterator();
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String nexturlstring;
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while (i.hasNext()) {
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try {
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nexturlstring = i.next().toNormalform(true, true);
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addAll(new plasmaSearchImages(DateFormatter.remainingTime(start, maxTime, 10), new yacyURL(nexturlstring, null), depth - 1, indexing));
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} catch (final MalformedURLException e1) {
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e1.printStackTrace();
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}
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}
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}
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document.close();
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}
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}
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}
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public void addAll(final plasmaSearchImages m) {
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synchronized (m.images) {
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htmlFilterContentScraper.addAllImages(this.images, m.images);
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}
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}
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public Iterator<htmlFilterImageEntry> entries() {
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// returns htmlFilterImageEntry - Objects
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return images.values().iterator();
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}
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}
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