mirror of
https://github.com/yacy/yacy_search_server.git
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a563b05b60
- added a new queue 'noload' which can be filled with urls where it is already known that the content cannot be loaded. This may be because there is no parser available or the file is too big - the noload queue is emptied with the parser process which indexes the file names only - the 'start from file' functionality now also reads from ftp crawler git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7368 6c8d7289-2bf4-0310-a012-ef5d649a1542
106 lines
3.9 KiB
Java
106 lines
3.9 KiB
Java
//SitemapImporter.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, 2007
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//
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//this file was contributed by Martin Thelian
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//last major change: $LastChangedDate$ by $LastChangedBy$
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//Revision: $LastChangedRevision$
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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.crawler;
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import java.net.MalformedURLException;
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import java.util.Date;
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import net.yacy.document.parser.sitemapParser;
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import net.yacy.kelondro.data.meta.DigestURI;
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import net.yacy.kelondro.data.meta.URIMetadataRow;
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import net.yacy.kelondro.logging.Log;
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import de.anomic.crawler.retrieval.Request;
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import de.anomic.search.Segments;
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import de.anomic.search.Switchboard;
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public class SitemapImporter extends Thread {
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private CrawlProfile crawlingProfile = null;
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private static final Log logger = new Log("SITEMAP");
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private DigestURI siteMapURL = null;
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private final Switchboard sb;
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public SitemapImporter(final Switchboard sb, final DigestURI sitemapURL, final CrawlProfile profileEntry) {
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assert sitemapURL != null;
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this.sb = sb;
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this.siteMapURL = sitemapURL;
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assert profileEntry != null;
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this.crawlingProfile = profileEntry;
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}
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public void run() {
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try {
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logger.logInfo("Start parsing sitemap file " + this.siteMapURL);
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sitemapParser.SitemapReader parser = sitemapParser.parse(this.siteMapURL);
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for (sitemapParser.URLEntry entry: parser) process(entry);
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} catch (final Exception e) {
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logger.logWarning("Unable to parse sitemap file " + this.siteMapURL, e);
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}
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}
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public void process(sitemapParser.URLEntry entry) {
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// get the url hash
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byte[] nexturlhash = null;
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DigestURI url = null;
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try {
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url = new DigestURI(entry.url());
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nexturlhash = url.hash();
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} catch (final MalformedURLException e1) {
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}
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// check if the url is known and needs to be recrawled
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Date lastMod = entry.lastmod(null);
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if (lastMod != null) {
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final String dbocc = this.sb.urlExists(Segments.Process.LOCALCRAWLING, nexturlhash);
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if ((dbocc != null) && (dbocc.equalsIgnoreCase("loaded"))) {
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// the url was already loaded. we need to check the date
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final URIMetadataRow oldEntry = this.sb.indexSegments.urlMetadata(Segments.Process.LOCALCRAWLING).load(nexturlhash, null, 0);
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if (oldEntry != null) {
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final Date modDate = oldEntry.moddate();
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// check if modDate is null
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if (modDate.after(lastMod)) return;
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}
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}
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}
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// URL needs to crawled
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this.sb.crawlStacker.enqueueEntry(new Request(
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this.sb.peers.mySeed().hash.getBytes(),
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url,
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null, // this.siteMapURL.toString(),
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entry.url(),
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entry.lastmod(new Date()),
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this.crawlingProfile.handle(),
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0,
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0,
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0,
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0
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));
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logger.logInfo("New URL '" + entry.url() + "' added for loading.");
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}
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}
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