mirror of
https://github.com/yacy/yacy_search_server.git
synced 2025-10-30 23:46:12 -04:00
103 lines
3.7 KiB
Java
103 lines
3.7 KiB
Java
// CrawlStarterFromScraper.java
|
|
// ---------------------------
|
|
// SPDX-FileCopyrightText: 2016 2017 luccioman; https://github.com/luccioman
|
|
// SPDX-FileCopyrightText: 2016 2017 Apply55gx; https://github.com/Apply55gx
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
//
|
|
// This is a part of YaCy, a peer-to-peer based web search engine
|
|
//
|
|
// LICENSE
|
|
//
|
|
// 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
|
|
|
|
package net.yacy.crawler;
|
|
|
|
import java.net.MalformedURLException;
|
|
import java.util.ArrayList;
|
|
import java.util.List;
|
|
import java.util.Properties;
|
|
|
|
import net.yacy.cora.document.id.AnchorURL;
|
|
import net.yacy.cora.util.ConcurrentLog;
|
|
import net.yacy.crawler.data.CrawlProfile;
|
|
import net.yacy.document.parser.html.ContentScraperListener;
|
|
|
|
/**
|
|
* Enqueue an entry to the crawlStacker each time an anchor is discovered by the ContentScraper
|
|
* @author luccioman
|
|
*
|
|
*/
|
|
public class CrawlStarterFromScraper implements ContentScraperListener {
|
|
|
|
private final static ConcurrentLog log = new ConcurrentLog(CrawlStarterFromScraper.class.getSimpleName());
|
|
|
|
/** CrawlStacker instance : will receive anchor links used as crawl starting points */
|
|
private CrawlStacker crawlStacker;
|
|
/** Hash of the peer initiating the crawl */
|
|
private final byte[] initiatorHash;
|
|
/** Active crawl profile */
|
|
private CrawlProfile profile;
|
|
/** Specify whether old indexed entries should be replaced */
|
|
private final boolean replace;
|
|
|
|
/**
|
|
* Constructor
|
|
* @param crawlStacker CrawlStacker instance : will receive anchor links used as crawl starting points
|
|
* @param initiatorHash Hash of the peer initiating the crawl (must not be null)
|
|
* @param profile active crawl profile (must not be null)
|
|
* @param replace Specify whether old indexed entries should be replaced
|
|
* @throws IllegalArgumentException when a required parameter is null
|
|
*/
|
|
public CrawlStarterFromScraper(final CrawlStacker crawlStacker, final byte[] initiatorHash,
|
|
final CrawlProfile profile,
|
|
final boolean replace) {
|
|
if(crawlStacker == null) {
|
|
throw new IllegalArgumentException("crawlStacker parameter must not be null");
|
|
}
|
|
this.crawlStacker = crawlStacker;
|
|
if(initiatorHash == null) {
|
|
throw new IllegalArgumentException("initiatorHash parameter must not be null");
|
|
}
|
|
this.initiatorHash = initiatorHash;
|
|
this.replace = replace;
|
|
if(profile == null) {
|
|
throw new IllegalArgumentException("profile parameter must not be null");
|
|
}
|
|
this.profile = profile;
|
|
}
|
|
|
|
@Override
|
|
public void scrapeTag0(String tagname, Properties tagopts) {
|
|
// Nothing to do on this event
|
|
}
|
|
|
|
@Override
|
|
public void scrapeTag1(String tagname, Properties tagopts, char[] text) {
|
|
// Nothing to do on this event
|
|
}
|
|
|
|
@Override
|
|
public void anchorAdded(String anchorURL) {
|
|
List<AnchorURL> urls = new ArrayList<>();
|
|
try {
|
|
urls.add(new AnchorURL(anchorURL));
|
|
this.crawlStacker.enqueueEntries(this.initiatorHash, this.profile.handle(), urls, this.replace, this.profile.timezoneOffset());
|
|
} catch (MalformedURLException e) {
|
|
log.warn("Malformed URL : " + anchorURL);
|
|
}
|
|
}
|
|
|
|
}
|