/*
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
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; version 2 of the License.
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 com.bigdata.rdf.inf;
import com.bigdata.counters.CAT;
/**
* Statistics collected when performing inference.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class ClosureStats {
/**
* The #of entailments that were added to the database (this includes axioms
* and statements entailed given the data). This reports only the actual
* change in the #of statements in the database across the closure
* operation.
*/
public final CAT mutationCount = new CAT();
/**
* Time to compute the entailments and store them within the database
* (milliseconds).
*/
public final CAT elapsed = new CAT();
public ClosureStats() {
}
/**
*
* @param mutationCount
* @param elapsed
*/
public ClosureStats(final long mutationCount,final long elapsed) {
this.mutationCount.set(mutationCount);
this.elapsed.set( elapsed);
}
public void add(final ClosureStats o) {
this.mutationCount.add( o.mutationCount.get());
this.elapsed.add(o.elapsed.get());
}
public long triplesPerSecond() {
return ((long) (((double) mutationCount.get()) / ((double) elapsed.get()) * 1000d));
}
public String toString() {
return getClass().getSimpleName() + "{mutationCount=" + mutationCount.estimate_get()
+ ", elapsed=" + elapsed.estimate_get() + "ms, rate="+triplesPerSecond()+"}";
}
}