Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/utils/DateAverager.java @ 4205:0dd8963cec9c

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Set also the width of the GaugeTree when resizing the GaugePanel GWT is no longer able to calculate and set the correct width of the GaugeTree since the GaugeTree is added via a Canvas wrapper. Therefore set the width manually when resizing the GaugeTree.
author Björn Ricks <bjoern.ricks@intevation.de>
date Mon, 22 Oct 2012 15:33:16 +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>
parents:
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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;
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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) {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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16 dates.add(date.getTime());
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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17 }
d520a0869972 Added class to average dates without overflows.
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18
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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;
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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23 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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24 long min = dates.min();
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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;
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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));
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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
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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 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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35 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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36 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org