Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/LocationDistanceSelect.java @ 313:89bd0417418f

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The location/distance state now writes default values into DESCRIBE. flys-artifacts/trunk@1697 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 14 Apr 2011 13:36:06 +0000
parents 2e510c998adb
children 448d0dc64357
rev   line source
136
2e510c998adb New state for the location/distance input and some litte modifications of the DefaultState.
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1 package de.intevation.flys.artifacts.states;
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2
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3 import org.apache.log4j.Logger;
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4
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5 import org.w3c.dom.Element;
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6
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7 import de.intevation.artifacts.Artifact;
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8 import de.intevation.artifacts.CallContext;
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9
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10 import de.intevation.artifacts.common.utils.XMLUtils;
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11
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12 import de.intevation.artifactdatabase.ProtocolUtils;
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13 import de.intevation.artifactdatabase.data.StateData;
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14
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15 import de.intevation.flys.model.River;
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16
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17 import de.intevation.flys.artifacts.FLYSArtifact;
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18 import de.intevation.flys.artifacts.model.RiverFactory;
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19 import de.intevation.flys.artifacts.resources.Resources;
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20
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21 /**
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22 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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23 */
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24 public class LocationDistanceSelect extends DefaultState {
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25
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26 /** The logger used in this class.*/
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27 private static Logger logger = Logger.getLogger(LocationDistanceSelect.class);
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28
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29
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30 /** The default step width.*/
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31 public static final String DEFAULT_STEP = "100";
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32
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33 /**
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34 * The default constructor that initializes an empty State object.
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35 */
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36 public LocationDistanceSelect() {
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37 }
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38
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39 protected Element createData(
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40 XMLUtils.ElementCreator cr,
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41 Artifact artifact,
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42 StateData data,
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43 CallContext context)
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44 {
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45 Element select = ProtocolUtils.createArtNode(
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46 cr, "select", null, null);
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47
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48 cr.addAttr(select, "name", data.getName(), true);
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49
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50 Element label = ProtocolUtils.createArtNode(
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51 cr, "label", null, null);
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52
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53 Element choices = ProtocolUtils.createArtNode(
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54 cr, "choices", null, null);
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55
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56 label.setTextContent(Resources.getMsg(
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57 context.getMeta(),
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58 data.getName(),
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59 data.getName()));
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60
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61 select.appendChild(label);
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62
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63 return select;
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64 }
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65
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66
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67 protected Element[] createItems(
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68 XMLUtils.ElementCreator cr,
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69 Artifact artifact,
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70 String name,
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71 CallContext context)
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72 {
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73 double[] minmax = getMinMaxDistance(artifact);
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74
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75 double minVal = Double.MIN_VALUE;
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76 double maxVal = Double.MAX_VALUE;
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77
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78 if (minmax != null) {
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79 minVal = minmax[0];
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80 maxVal = minmax[1];
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81 }
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82 else {
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83 logger.warn("Could not read min/max distance values!");
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84 }
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85
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86 if (name.equals("ld_from")) {
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87 Element min = createItem(
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88 cr,
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89 new String[] {"min", new Double(minVal).toString()});
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90
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91 return new Element[] { min };
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92 }
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93 else if (name.equals("ld_to")) {
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94 Element max = createItem(
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95 cr,
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96 new String[] {"max", new Double(maxVal).toString()});
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97
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98 return new Element[] { max };
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99 }
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100 else {
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101 Element step = createItem(cr, new String[] {"step", DEFAULT_STEP});
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102 return new Element[] { step };
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103 }
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104
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105 }
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106
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107
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108 protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
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109 Element item = ProtocolUtils.createArtNode(cr, "item", null, null);
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110 Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
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111 Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
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112
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113 String[] arr = (String[]) obj;
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114
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115 label.setTextContent(arr[0]);
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116 value.setTextContent(arr[1]);
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117
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118 item.appendChild(label);
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119 item.appendChild(value);
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120
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121 return item;
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122 }
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123
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124
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125 protected String getUIProvider() {
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126 return "location_distance_panel";
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127 }
313
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128
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129
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130 protected double[] getMinMaxDistance(Artifact artifact) {
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131 FLYSArtifact flysArtifact = (FLYSArtifact) artifact;
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132 StateData data = flysArtifact.getData("river");
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133
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134 String name = (String) data.getValue();
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135
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136 logger.debug("Search for the min/max distances of '" + name + "'");
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137
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138 River river = RiverFactory.getRiver(name);
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139
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140 return river != null ? river.determineMinMaxDistance() : null;
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141 }
136
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142 }
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143 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org