Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/utils/DateAverager.java @ 3929:f37323e86d59
S(Q) relation: Fixed SQL projection.
flys-artifacts/trunk@5623 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Thu, 27 Sep 2012 16:41:16 +0000 |
parents | d520a0869972 |
children |
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package de.intevation.flys.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 :