mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-19 00:01:41 +02:00
788288eb9e
The default schema uses only some of them and the resting search index has now the following properties: - webgraph size will have about 40 times as much entries as default index - the complete index size will increase and may be about the double size of current amount As testing showed, not much indexing performance is lost. The default index will be smaller (moved fields out of it); thus searching can be faster. The new index will cause that some old parts in YaCy can be removed, i.e. specialized webgraph data and the noload crawler. The new index will make it possible to: - search within link texts of linked but not indexed documents (about 20 times of document index in size!!) - get a very detailed link graph - enhance ranking using a complete link graph To get the full access to the new index, the API to solr has now two access points: one with attribute core=collection1 for the default search index and core=webgraph to the new webgraph search index. This is also avaiable for p2p operation but client access is not yet implemented.
223 lines
11 KiB
Java
223 lines
11 KiB
Java
// webstructure.java
|
|
// ------------
|
|
// (C) 2009 by Michael Peter Christen; mc@yacy.net
|
|
// first published 01.05.2008 on http://yacy.net
|
|
//
|
|
// $LastChangedDate: 2009-03-16 19:08:43 +0100 (Mo, 16 Mrz 2009) $
|
|
// $LastChangedRevision: 5723 $
|
|
// $LastChangedBy: borg-0300 $
|
|
//
|
|
// 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
|
|
|
|
|
|
import java.io.IOException;
|
|
import java.net.MalformedURLException;
|
|
import java.util.Date;
|
|
import java.util.Iterator;
|
|
import java.util.Map;
|
|
|
|
import net.yacy.cora.date.GenericFormatter;
|
|
import net.yacy.cora.document.ASCII;
|
|
import net.yacy.cora.federate.yacy.CacheStrategy;
|
|
import net.yacy.cora.order.Base64Order;
|
|
import net.yacy.cora.protocol.RequestHeader;
|
|
import net.yacy.crawler.data.CrawlQueues;
|
|
import net.yacy.kelondro.data.citation.CitationReference;
|
|
import net.yacy.kelondro.data.meta.DigestURI;
|
|
import net.yacy.kelondro.logging.Log;
|
|
import net.yacy.kelondro.rwi.IndexCell;
|
|
import net.yacy.kelondro.rwi.ReferenceContainer;
|
|
import net.yacy.peers.graphics.WebStructureGraph;
|
|
import net.yacy.search.Switchboard;
|
|
import net.yacy.server.serverObjects;
|
|
import net.yacy.server.serverSwitch;
|
|
|
|
public class webstructure {
|
|
|
|
public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
|
|
final serverObjects prop = new serverObjects();
|
|
final Switchboard sb = (Switchboard) env;
|
|
String about = post == null ? null : post.get("about", null); // may be a URL, a URL hash or a domain hash
|
|
prop.put("out", 0);
|
|
prop.put("in", 0);
|
|
prop.put("references", 0);
|
|
prop.put("citations", 0);
|
|
boolean authenticated = sb.adminAuthenticated(header) >= 2;
|
|
if (about != null) {
|
|
DigestURI url = null;
|
|
byte[] urlhash = null;
|
|
String hosthash = null;
|
|
if (about.length() == 6 && Base64Order.enhancedCoder.wellformed(ASCII.getBytes(about))) {
|
|
hosthash = about;
|
|
} else if (about.length() == 12 && Base64Order.enhancedCoder.wellformed(ASCII.getBytes(about))) {
|
|
urlhash = ASCII.getBytes(about);
|
|
hosthash = about.substring(6);
|
|
url = authenticated ? sb.getURL(urlhash) : null;
|
|
} else if (authenticated && about.length() > 0) {
|
|
// consider "about" as url or hostname
|
|
try {
|
|
url = new DigestURI(about.indexOf("://") >= 0 ? about : "http://" + about); // accept also domains
|
|
urlhash = url.hash();
|
|
hosthash = ASCII.String(urlhash, 6, 6);
|
|
} catch (MalformedURLException e) {
|
|
}
|
|
}
|
|
if (hosthash != null) {
|
|
prop.put("out", 1);
|
|
prop.put("in", 1);
|
|
WebStructureGraph.StructureEntry sentry = sb.webStructure.outgoingReferences(hosthash);
|
|
if (sentry != null && sentry.references.size() > 0) {
|
|
reference(prop, "out", 0, sentry, sb.webStructure);
|
|
prop.put("out_domains", 1);
|
|
} else {
|
|
prop.put("out_domains", 0);
|
|
}
|
|
sentry = sb.webStructure.incomingReferences(hosthash);
|
|
if (sentry != null && sentry.references.size() > 0) {
|
|
reference(prop, "in", 0, sentry, sb.webStructure);
|
|
prop.put("in_domains", 1);
|
|
} else {
|
|
prop.put("in_domains", 0);
|
|
}
|
|
}
|
|
if (urlhash != null) {
|
|
// anchors
|
|
prop.put("references", 1);
|
|
net.yacy.document.Document scraper = null;
|
|
if (url != null) try {
|
|
scraper = sb.loader.loadDocument(url, CacheStrategy.IFEXIST, null, CrawlQueues.queuedMinLoadDelay);
|
|
} catch (final IOException e) {
|
|
Log.logException(e);
|
|
}
|
|
if (scraper != null) {
|
|
prop.put("references_count", 1);
|
|
prop.put("references_documents", 1);
|
|
prop.put("references_documents_0_hash", urlhash);
|
|
prop.put("references_documents_0_count", scraper.inboundLinks().size() + scraper.outboundLinks().size());
|
|
prop.put("references_documents_0_date", GenericFormatter.SHORT_DAY_FORMATTER.format(new Date()));
|
|
prop.put("references_documents_0_urle", url == null ? 0 : 1);
|
|
if (url != null) prop.putXML("references_documents_0_urle_url", url.toNormalform(true));
|
|
int d = 0;
|
|
Iterator<DigestURI> i = scraper.inboundLinks().iterator();
|
|
while (i.hasNext()) {
|
|
DigestURI refurl = i.next();
|
|
byte[] refhash = refurl.hash();
|
|
prop.putXML("references_documents_0_anchors_" + d + "_url", refurl.toNormalform(true));
|
|
prop.put("references_documents_0_anchors_" + d + "_hash", refhash);
|
|
prop.put("references_documents_0_anchors_" + d + "_outbound", 0);
|
|
d++;
|
|
}
|
|
i = scraper.outboundLinks().iterator();
|
|
while (i.hasNext()) {
|
|
DigestURI refurl = i.next();
|
|
byte[] refhash = refurl.hash();
|
|
prop.putXML("references_documents_0_anchors_" + d + "_url", refurl.toNormalform(true));
|
|
prop.put("references_documents_0_anchors_" + d + "_hash", refhash);
|
|
prop.put("references_documents_0_anchors_" + d + "_outbound", 1);
|
|
d++;
|
|
}
|
|
prop.put("references_documents_0_count", d);
|
|
prop.put("references_documents_0_anchors", d);
|
|
} else {
|
|
prop.put("references_count", 0);
|
|
prop.put("references_documents", 0);
|
|
}
|
|
|
|
// citations
|
|
prop.put("citations", 1);
|
|
IndexCell<CitationReference> citationReferences = sb.index.urlCitation();
|
|
ReferenceContainer<CitationReference> citations = null;
|
|
// citationReferences.count(urlhash) would give to the number of references good for ranking
|
|
try {
|
|
citations = citationReferences != null ? citationReferences.get(urlhash, null) : null;
|
|
} catch (IOException e) {
|
|
}
|
|
if (citations != null) {
|
|
prop.put("citations_count", 1);
|
|
prop.put("citations_documents", 1);
|
|
prop.put("citations_documents_0_hash", urlhash);
|
|
prop.put("citations_documents_0_count", citations.size());
|
|
prop.put("citations_documents_0_date", GenericFormatter.SHORT_DAY_FORMATTER.format(new Date(citations.lastWrote())));
|
|
prop.put("citations_documents_0_urle", url == null ? 0 : 1);
|
|
if (url != null) prop.putXML("citations_documents_0_urle_url", url.toNormalform(true));
|
|
int d = 0;
|
|
Iterator<CitationReference> i = citations.entries();
|
|
while (i.hasNext()) {
|
|
CitationReference cr = i.next();
|
|
byte[] refhash = cr.urlhash();
|
|
DigestURI refurl = authenticated ? sb.getURL(refhash) : null;
|
|
prop.put("citations_documents_0_anchors_" + d + "_urle", refurl == null ? 0 : 1);
|
|
if (refurl != null) prop.putXML("citations_documents_0_anchors_" + d + "_urle_url", refurl.toNormalform(true));
|
|
prop.put("citations_documents_0_anchors_" + d + "_urle_hash", refhash);
|
|
prop.put("citations_documents_0_anchors_" + d + "_urle_date", GenericFormatter.SHORT_DAY_FORMATTER.format(new Date(cr.lastModified())));
|
|
d++;
|
|
}
|
|
prop.put("citations_documents_0_count", d);
|
|
prop.put("citations_documents_0_anchors", d);
|
|
} else {
|
|
prop.put("citations_count", 0);
|
|
prop.put("citations_documents", 0);
|
|
}
|
|
}
|
|
} else if (authenticated) {
|
|
// show a complete list of link structure informations in case that the user is authenticated
|
|
final boolean latest = ((post == null) ? false : post.containsKey("latest"));
|
|
final Iterator<WebStructureGraph.StructureEntry> i = sb.webStructure.structureEntryIterator(latest);
|
|
int c = 0;
|
|
WebStructureGraph.StructureEntry sentry;
|
|
while (i.hasNext()) {
|
|
sentry = i.next();
|
|
reference(prop, "out", c, sentry, sb.webStructure);
|
|
c++;
|
|
}
|
|
prop.put("out_domains", c);
|
|
prop.put("out", 1);
|
|
if (latest) sb.webStructure.joinOldNew();
|
|
} else {
|
|
// not-authenticated users show nothing
|
|
prop.put("out_domains", 0);
|
|
prop.put("out", 1);
|
|
}
|
|
prop.put("out_maxref", WebStructureGraph.maxref);
|
|
prop.put("maxhosts", WebStructureGraph.maxhosts);
|
|
|
|
// return rewrite properties
|
|
return prop;
|
|
}
|
|
|
|
public static void reference(serverObjects prop, String prefix, int c, WebStructureGraph.StructureEntry sentry, WebStructureGraph ws) {
|
|
prop.put(prefix + "_domains_" + c + "_hash", sentry.hosthash);
|
|
prop.put(prefix + "_domains_" + c + "_domain", sentry.hostname);
|
|
prop.put(prefix + "_domains_" + c + "_date", sentry.date);
|
|
Iterator<Map.Entry<String, Integer>> k = sentry.references.entrySet().iterator();
|
|
Map.Entry<String, Integer> refentry;
|
|
String refdom, refhash;
|
|
Integer refcount;
|
|
int d = 0;
|
|
refloop: while (k.hasNext()) {
|
|
refentry = k.next();
|
|
refhash = refentry.getKey();
|
|
refdom = ws.hostHash2hostName(refhash);
|
|
if (refdom == null) continue refloop;
|
|
prop.put(prefix + "_domains_" + c + "_citations_" + d + "_refhash", refhash);
|
|
prop.put(prefix + "_domains_" + c + "_citations_" + d + "_refdom", refdom);
|
|
refcount = refentry.getValue();
|
|
prop.put(prefix + "_domains_" + c + "_citations_" + d + "_refcount", refcount.intValue());
|
|
d++;
|
|
}
|
|
prop.put(prefix + "_domains_" + c + "_citations", d);
|
|
}
|
|
}
|