Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/utils/DateAverager.java @ 4198:1cdbd8a0c994

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Added two new tables ClickableQDTable and ClickableWTable and made Ws and Qs clickable in historical discharge calculation. The new tables define listener interfaces (clicked lower or upper icon) to listen to user clicks. In addition to this, there is an enum ClickMode with NONE, SINGLE and RANGE options, which allows to specifiy, which icons are displayed in the tables. NONE means no icon for user clicks, SINGLE has 1 icon, RANGE 2 icons for lower and upper.
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 22 Oct 2012 13:31:25 +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;
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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 {
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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
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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>
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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) {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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22 return null;
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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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26 for (int i = 0; i < N; ++i) {
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27 sum += dates.getQuick(i) - min;
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28 }
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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>
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36 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org