// yacydoc.java
// -----------------------
// (C) 2009 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
// first published 12.01.2009 on http://yacy.net
//
// This is a part of YaCy, a peer-to-peer based web search engine
//
// $LastChangedDate: 2007-11-14 01:15:28 +0000 (Mi, 14 Nov 2007) $
// $LastChangedRevision: 4216 $
// $LastChangedBy: orbiter $
//
// 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
import java.net.MalformedURLException;
import net.yacy.cora.date.ISO8601Formatter;
import net.yacy.cora.document.ASCII;
import net.yacy.cora.document.UTF8;
import net.yacy.cora.protocol.RequestHeader;
import net.yacy.kelondro.data.meta.DigestURI;
import net.yacy.kelondro.data.meta.URIMetadataRow;
import net.yacy.kelondro.data.word.Word;
import net.yacy.kelondro.logging.Log;
import net.yacy.search.Switchboard;
import net.yacy.search.index.Segment;
import net.yacy.search.index.Segments;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
public class yacydoc {
public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
// return variable that accumulates replacements
final Switchboard sb = (Switchboard) env;
final serverObjects prop = new serverObjects();
final Segment segment;
final boolean html = post != null && post.containsKey("html");
prop.setLocalized(html);
final boolean authorized = sb.verifyAuthentication(header);
if (post != null && post.containsKey("segment") && authorized) {
segment = sb.indexSegments.segment(post.get("segment"));
} else {
segment = sb.indexSegments.segment(Segments.Process.PUBLIC);
}
prop.put("dc_title", "");
prop.put("dc_creator", "");
prop.put("dc_description", "");
prop.put("dc_subject", "");
prop.put("dc_publisher", "");
prop.put("dc_contributor", "");
prop.put("dc_date", "");
prop.put("dc_type", "");
prop.put("dc_identifier", "");
prop.put("dc_language", "");
if (post == null) return prop;
final String urlstring = post.get("url", "").trim();
String urlhash = post.get("urlhash", "").trim();
if (urlstring.length() == 0 && urlhash.length() == 0) return prop;
if (urlstring.length() > 0 && urlhash.length() == 0) {
try {
final DigestURI url = new DigestURI(urlstring);
urlhash = ASCII.String(url.hash());
} catch (final MalformedURLException e) {
Log.logException(e);
}
}
if (urlhash == null || urlhash.length() == 0) return prop;
final URIMetadataRow entry = segment.urlMetadata().load(urlhash.getBytes());
if (entry == null) return prop;
final URIMetadataRow.Components metadata = entry.metadata();
if (metadata.url() == null) {
return prop;
}
final URIMetadataRow le = (entry.referrerHash() == null || entry.referrerHash().length != Word.commonHashLength) ? null : segment.urlMetadata().load(entry.referrerHash());
prop.putXML("dc_title", metadata.dc_title());
prop.putXML("dc_creator", metadata.dc_creator());
prop.putXML("dc_description", ""); // this is the fulltext part in the surrogate
prop.putXML("dc_subject", metadata.dc_subject());
prop.putXML("dc_publisher", metadata.dc_publisher());
prop.putXML("dc_contributor", "");
prop.putXML("dc_date", ISO8601Formatter.FORMATTER.format(entry.moddate()));
prop.putXML("dc_type", String.valueOf(entry.doctype()));
prop.putXML("dc_identifier", metadata.url().toNormalform(false, true));
prop.putXML("dc_language", UTF8.String(entry.language()));
prop.put("geo_lat", metadata.lat());
prop.put("geo_long", metadata.lon());
prop.put("yacy_urlhash", metadata.url().hash());
prop.putXML("yacy_loaddate", entry.loaddate().toString());
prop.putXML("yacy_referrer_hash", (le == null) ? "" : ASCII.String(le.hash()));
prop.putXML("yacy_referrer_url", (le == null) ? "" : le.metadata().url().toNormalform(false, true));
prop.put("yacy_size", entry.size());
prop.put("yacy_words",entry.wordCount());
// return rewrite properties
return prop;
}
}