Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/client/ui/sinfo/WaterlevelSoundingYearFilter.java @ 9227:84397da33d17

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Allow to control specific behaviour in TwinDatacagePanel Implemented client logic of 'intelligent datacage filtering' for SINFO
author gernotbelger
date Wed, 04 Jul 2018 18:28:08 +0200
parents
children 082e8e808902
rev   line source
9227
84397da33d17 Allow to control specific behaviour in TwinDatacagePanel
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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.client.client.ui.sinfo;
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11
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12 import org.dive4elements.river.client.client.ui.DatacageWidget.DatacageFilter;
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13 import org.dive4elements.river.client.shared.model.AttrList;
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14 import org.dive4elements.river.client.shared.model.DataCageNode;
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15
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16 /**
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17 * @author Gernot Belger
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18 */
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19 final class WaterlevelSoundingYearFilter implements DatacageFilter {
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20
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21 private final int soundingYear;
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22
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23 public WaterlevelSoundingYearFilter(final int soundingYear) {
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24 this.soundingYear = soundingYear;
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25 }
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26
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27 @Override
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28 public boolean accept(final DataCageNode node) {
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29
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30 final AttrList attributes = node.getAttributes();
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31 if (attributes == null)
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32 return true;
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33
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34 if (!attributes.hasAttribute("factory"))
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35 return true;
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36
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37 final Integer waterlevelYear = getYear(attributes);
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38 if (waterlevelYear == null) {
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39 // should never happen, we should only show waterlevels that have a year
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40 return false;
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41 }
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42
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43 final int diff = Math.abs(this.soundingYear - waterlevelYear);
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44
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45 return diff <= getMaxYearDifference();
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46 }
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47
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48 private int getMaxYearDifference() {
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49
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50 if (this.soundingYear < 1918)
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51 return 25;
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52
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53 if (1918 <= this.soundingYear && this.soundingYear < 1958)
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54 return 12;
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55
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56 if (1958 <= this.soundingYear && this.soundingYear < 1998)
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57 return 6;
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58
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59 // > 1998
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60 return 3;
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61 }
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62
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63 private static Integer getYear(final AttrList attributes) {
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64
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65 final String year = attributes.getValue(WaterlevelSoundingSelectionController.ATTRIBUTE_YEAR);
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66 if (year == null || year.trim().isEmpty())
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67 return null;
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68
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69 try {
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70 return Integer.valueOf(year);
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71 }
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72 catch (final NumberFormatException e) {
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73 e.printStackTrace();
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74 return null;
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75 }
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76 }
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77 }
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