// rwilist_p
// ------------
// (C) 2011 by Michael Peter Christen; mc@yacy.net
// first published 25.08.2011 on http://yacy.net
//
// $LastChangedDate: 2011-01-03 21:52:54 +0100 (Mo, 03 Jan 2011) $
// $LastChangedRevision: 7420 $
// $LastChangedBy: orbiter $
//
// 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.util.ArrayList;
import java.util.Iterator;
import net.yacy.cora.document.ASCII;
import net.yacy.cora.protocol.RequestHeader;
import net.yacy.cora.ranking.Rating;
import net.yacy.kelondro.index.Row;
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 termlist_p {
public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
final Log log = new Log("TERMLIST");
final serverObjects prop = new serverObjects();
final Switchboard sb = (Switchboard) env;
Segment segment = null;
final boolean delete = post != null && post.containsKey("delete");
final long mincount = post == null ? 10000 : post.getLong("mincount", 10000);
if (post != null && post.containsKey("segment") && sb.verifyAuthentication(header)) {
segment = sb.indexSegments.segment(post.get("segment"));
}
if (segment == null) segment = sb.indexSegments.segment(Segments.Process.PUBLIC);
final Iterator<Rating<byte[]>> i = segment.termIndex().referenceCountIterator(null, false);
Rating<byte[]> e;
int c = 0, termnumber = 0;
byte[] termhash, maxterm = null;
long count, mem, maxcount = 0, totalmemory = 0;
String hstring;
final Row referenceRow = segment.termIndex().referenceRow();
final int rowsize = referenceRow.objectsize;
final ArrayList<byte[]> deleteterms = new ArrayList<byte[]>();
long over1000 = 0, over10000 = 0, over100000 = 0, over1000000 = 0, over10000000 = 0, over100000000 = 0;
while (i.hasNext()) {
e = i.next();
termnumber++;
count = e.getScore();
if (count >= 1000) over1000++;
if (count >= 10000) over10000++;
if (count >= 100000) over100000++;
if (count >= 1000000) over1000000++;
if (count >= 10000000) over10000000++;
if (count >= 100000000) over100000000++;
if (count > maxcount) {
maxcount = count;
maxterm = e.getObject();
}
if (count < mincount) continue;
termhash = e.getObject();
if (delete) deleteterms.add(termhash);
hstring = ASCII.String(termhash);
mem = 20 + count * rowsize;
prop.put("terms_" + c + "_termhash", hstring);
prop.put("terms_" + c + "_count", count);
prop.put("terms_" + c + "_memory", mem);
//log.logWarning("termhash: " + hstring + " | count: " + count + " | memory: " + mem);
c++;
totalmemory += mem;
}
if (delete) {
for (final byte[] t: deleteterms) {
try {
segment.termIndex().delete(t);
} catch (final IOException e1) {
log.logWarning("Error deleting " + ASCII.String(t), e1);
e1.printStackTrace();
}
}
}
prop.put("terms", c);
prop.put("maxterm", maxterm == null ? "" : ASCII.String(maxterm));
prop.put("maxcount", maxcount);
prop.put("maxcountmemory", 20 + maxcount * rowsize);
prop.put("termnumber", termnumber);
prop.put("totalmemory", totalmemory);
prop.put("over1000", over1000);
prop.put("over10000", over10000);
prop.put("over100000", over100000);
prop.put("over1000000", over1000000);
prop.put("over10000000", over10000000);
prop.put("over100000000", over100000000);
log.logWarning("finished termlist_p -> terms: " + c);
log.logWarning("maxterm: "+ (maxterm == null ? "" : ASCII.String(maxterm)));
log.logWarning("maxcount: " + maxcount);
log.logWarning("termnumber: " + termnumber);
log.logWarning("totalmemory: " + totalmemory);
// return rewrite properties
return prop;
}
}