Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/states/LocationSelect.java @ 9584:1a7cfeb1ff89

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Punkt 10.8 WQ-Vorschau
author gernotbelger
date Wed, 09 Jan 2019 17:13:25 +0100
parents e4606eae8ea5
children
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.artifacts.states;
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10
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11 import org.apache.log4j.Logger;
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12 import org.dive4elements.artifactdatabase.data.StateData;
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13 import org.dive4elements.artifacts.Artifact;
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14 import org.dive4elements.artifacts.CallContext;
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15 import org.dive4elements.artifacts.common.utils.XMLUtils;
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16 import org.dive4elements.river.artifacts.D4EArtifact;
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17 import org.w3c.dom.Element;
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18
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19 import gnu.trove.TDoubleArrayList;
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20
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21 /**
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22 * This state is used to realize the input of multiple locations as string.
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23 *
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24 * The string should be a whitespace separated list of double values where each
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25 * double value represents a location.
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26 *
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27 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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28 */
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29 public class LocationSelect extends LocationDistanceSelect {
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30
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31 private static final long serialVersionUID = 1L;
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32 /** The log used in this class. */
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33 private static Logger log = Logger.getLogger(LocationSelect.class);
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34
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35 public LocationSelect() {
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36 }
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37
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38 /** UI Provider (which input method should the client provide to user. */
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39 @Override
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40 protected String getUIProvider() {
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41 return "location_panel";
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42 }
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43
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44 @Override
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45 protected Element[] createItems(final XMLUtils.ElementCreator cr, final Artifact artifact, final String name, final CallContext context) {
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46 final double[] minmax = getMinMax(artifact);
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47
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48 double minVal = Double.MIN_VALUE;
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49 double maxVal = Double.MAX_VALUE;
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50
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51 if (minmax != null) {
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52 minVal = minmax[0];
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53 maxVal = minmax[1];
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54 } else {
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55 log.warn("Could not read min/max distance values!");
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56 }
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57
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58 if (name.equals(LOCATIONS)) {
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59 final Element min = createItem(cr, new String[] { "min", new Double(minVal).toString() });
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60
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61 final Element max = createItem(cr, new String[] { "max", new Double(maxVal).toString() });
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62
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63 return new Element[] { min, max };
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64 }
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65
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66 return null;
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67 }
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68
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69 /** Validates data from artifact. */
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70 @Override
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71 public boolean validate(final Artifact artifact) throws IllegalArgumentException {
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72 log.debug("LocationSelect.validate");
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73
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74 final D4EArtifact flys = (D4EArtifact) artifact;
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75 final StateData data = getData(flys, LOCATIONS);
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76
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77 final String locationStr = data != null ? (String) data.getValue() : null;
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78
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79 if (locationStr == null || locationStr.length() == 0) {
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80 log.error("No locations given.");
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81 throw new IllegalArgumentException("error_empty_state");
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82 }
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83
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84 final double[] minmax = getMinMax(artifact);
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85 final double[] mm = extractLocations(locationStr);
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86
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87 log.debug("Inserted min location: " + mm[0]);
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88 log.debug("Inserted max location: " + mm[mm.length - 1]);
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89
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90 return validateBounds(minmax[0], minmax[1], mm[0], mm[mm.length - 1], 0d);
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91 }
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92
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93 /**
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94 * This method takes a string that consist of whitespace separated double
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95 * values and returns the double values as array.
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96 *
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97 * @param locationStr
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98 * The locations inserted in this state.
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99 *
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100 * @return the locations as array.
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101 */
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102 protected double[] extractLocations(final String locationStr) {
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103 final String[] tmp = locationStr.split(" ");
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104 final TDoubleArrayList locations = new TDoubleArrayList();
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105
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106 for (final String l : tmp) {
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107 try {
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108 locations.add(Double.parseDouble(l));
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109 }
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110 catch (final NumberFormatException nfe) {
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111 log.warn(nfe, nfe);
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112 }
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113 }
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114
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115 locations.sort();
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116
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117 return locations.toNativeArray();
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118 }
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119 }
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120 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org