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annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/fixings/FixRealizingCalculationExtended.java @ 8957:7565d7dce850

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Implemented calculation of 'year' for fixations
author gernotbelger
date Fri, 23 Mar 2018 17:52:59 +0100
parents bd3095b3f028
children 9744ce3c3853
rev   line source
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1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by
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3 * Björnsen Beratende Ingenieure GmbH
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4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
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5 *
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6 * This file is Free Software under the GNU AGPL (>=v3)
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7 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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8 * documentation coming with Dive4Elements River for details.
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9 */
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10 package org.dive4elements.river.artifacts.model.fixings;
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11
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12 import java.util.Calendar;
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13 import java.util.Date;
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14 import java.util.List;
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15 import java.util.SortedSet;
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16 import java.util.TreeSet;
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17
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18 import org.dive4elements.river.artifacts.access.FixRealizingAccess;
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19 import org.dive4elements.river.artifacts.model.FixingsOverview;
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20 import org.dive4elements.river.artifacts.model.FixingsOverviewFactory;
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21
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22 /**
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23 * REMARK: this inheritance is only needed, beause changing the orignal calculation will probably break the
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24 * serialization of the artifact....
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25 *
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26 * @author Gernot Belger
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27 */
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28 public class FixRealizingCalculationExtended extends FixRealizingCalculation {
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29 private static final long serialVersionUID = 1L;
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30
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31 public FixRealizingCalculationExtended(final FixRealizingAccess fixAccess) {
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32 super(fixAccess);
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33 }
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34
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35 public int determineMeanYear() {
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36 final FixingsOverview overview = FixingsOverviewFactory.getOverview(this.river);
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37 final ColumnCache cc = new ColumnCache();
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38
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39 final SortedSet<Integer> years = new TreeSet<>();
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40
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41 final Calendar cal = Calendar.getInstance();
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42
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43 final List<Column> columns = getEventColumns(overview, cc);
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44 for (final Column column : columns) {
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45 final Date date = column.getDate();
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46 cal.setTime(date);
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47
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48 final int year = cal.get(Calendar.YEAR);
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49 years.add(year);
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50 }
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51
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52 final Integer first = years.first();
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53 final Integer last = years.last();
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54 if (first == null || last == null)
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55 return -1;
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56
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57 return (first + last) / 2;
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58 }
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59 }
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