Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/utils/DateAverager.java @ 6511:ed0e4208facd
Artifacts: Removed obsolete imports.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Fri, 28 Jun 2013 20:26:05 +0200 |
parents | af13ceeba52a |
children |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.utils; import gnu.trove.TLongArrayList; import java.util.Date; public class DateAverager { protected TLongArrayList dates; public DateAverager() { dates = new TLongArrayList(); } public void add(Date date) { dates.add(date.getTime()); } public Date getAverage() { int N = dates.size(); if (N == 0) { return null; } long min = dates.min(); long sum = 0L; for (int i = 0; i < N; ++i) { sum += dates.getQuick(i) - min; } return new Date(min + (long)Math.round(sum/(double)N)); } public void clear() { dates.resetQuick(); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :