Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/utils/DateAverager.java @ 4897:9c388de4b4d5
Builder: Doc, comments.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
---|---|
date | Tue, 29 Jan 2013 11:49:37 +0100 |
parents | d520a0869972 |
children |
line wrap: on
line source
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 :