Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/utils/DateAverager.java @ 4216:a04862abce42

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Don't redirect to the login page without query params Don't redirect to the login page without query params for the development mode. Therefore just reload the page after the user object is removed from the session and GGInAFilter will redirect to the correct long URL.
author Björn Ricks <bjoern.ricks@intevation.de>
date Tue, 23 Oct 2012 10:50:48 +0200
parents d520a0869972
children
rev   line source
3007
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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1 package de.intevation.flys.utils;
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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2
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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3 import gnu.trove.TLongArrayList;
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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4
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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5 import java.util.Date;
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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6
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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7 public class DateAverager
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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8 {
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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9 protected TLongArrayList dates;
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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10
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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11 public DateAverager() {
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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12 dates = new TLongArrayList();
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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13 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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14
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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15 public void add(Date date) {
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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16 dates.add(date.getTime());
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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17 }
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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18
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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19 public Date getAverage() {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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20 int N = dates.size();
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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21 if (N == 0) {
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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22 return null;
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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23 }
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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24 long min = dates.min();
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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25 long sum = 0L;
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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26 for (int i = 0; i < N; ++i) {
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27 sum += dates.getQuick(i) - min;
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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28 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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29 return new Date(min + (long)Math.round(sum/(double)N));
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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30 }
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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31
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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32 public void clear() {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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33 dates.resetQuick();
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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34 }
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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35 }
d520a0869972 Added class to average dates without overflows.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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36 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org