Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/client/ui/sinfo/WaterlevelSoundingYearFilter.java @ 9279:83ef08b5e1ac

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Waterlevel/Sounding TwinPanel wil hide all soundings/waterlevels that have no year information.
author gernotbelger
date Fri, 20 Jul 2018 14:56:27 +0200
parents 082e8e808902
children
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.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 Integer soundingYear;
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22
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23 /**
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24 * @param soundingYear If <code>null</code>, we do not check the distance to the waterlevel year, but still hide waterlevels without year
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25 */
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26 public WaterlevelSoundingYearFilter(final Integer soundingYear) {
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27 this.soundingYear = soundingYear;
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28 }
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29
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30 @Override
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31 public boolean accept(final DataCageNode node) {
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32
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33 final AttrList attributes = node.getAttributes();
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34
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35 if (isFolder(attributes))
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36 return true;
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37
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38 final String year = attributes.getValue(WaterlevelSoundingSelectionController.ATTRIBUTE_YEAR);
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39 final Integer waterlevelYear = parseYear(year);
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40 if (waterlevelYear == null) {
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41 // should never happen, we should only show waterlevels that have a year
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42 return false;
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43 }
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44
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45 if( this.soundingYear == null )
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46 return true;
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47
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48 final int diff = Math.abs(this.soundingYear - waterlevelYear);
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49
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50 return diff <= getMaxYearDifference();
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51 }
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52
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53 private int getMaxYearDifference() {
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54
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55 if (this.soundingYear < 1918)
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56 return 25;
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57
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58 if (1918 <= this.soundingYear && this.soundingYear < 1958)
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59 return 12;
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60
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61 if (1958 <= this.soundingYear && this.soundingYear < 1998)
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62 return 6;
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63
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64 // > 1998
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65 return 3;
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66 }
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67
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68 static Integer parseYear(final String year) {
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69
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70 if (year == null || year.trim().isEmpty())
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71 return null;
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72
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73 try {
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74 return Integer.valueOf(year);
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75 }
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76 catch (final NumberFormatException e) {
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77 e.printStackTrace();
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78 return null;
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79 }
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80 }
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81
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82 static boolean isFolder(final AttrList attributes) {
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83 if (attributes == null)
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84 return true;
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85
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86 if (!attributes.hasAttribute("factory"))
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87 return true;
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88
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89 return false;
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90 }
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91 }
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