Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/LocationDistanceSelect.java @ 340:b36fd8f21e6a

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Implementation of interfaces and its default implementations and a factory to work with themes. flys-artifacts/trunk@1739 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 21 Apr 2011 08:44:41 +0000
parents 448d0dc64357
children ed3325a0232a
rev   line source
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1 package de.intevation.flys.artifacts.states;
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2
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3 import java.util.Map;
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4
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5 import org.apache.log4j.Logger;
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6
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7 import org.w3c.dom.Element;
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8
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9 import de.intevation.artifacts.Artifact;
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10 import de.intevation.artifacts.CallContext;
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11
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12 import de.intevation.artifacts.common.utils.XMLUtils;
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13
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14 import de.intevation.artifactdatabase.ProtocolUtils;
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15 import de.intevation.artifactdatabase.data.StateData;
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17 import de.intevation.flys.model.River;
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18
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19 import de.intevation.flys.artifacts.FLYSArtifact;
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20 import de.intevation.flys.artifacts.model.RiverFactory;
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21 import de.intevation.flys.artifacts.resources.Resources;
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22
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23 /**
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24 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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25 */
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26 public class LocationDistanceSelect extends RangeState {
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28 /** The logger used in this class.*/
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29 private static Logger logger = Logger.getLogger(LocationDistanceSelect.class);
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31
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32 /** The default step width.*/
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33 public static final String DEFAULT_STEP = "100";
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34
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35 /** The name of the 'from' field. */
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36 public static final String FROM = "ld_from";
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37
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38 /** The name of the 'to' field. */
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39 public static final String TO = "ld_to";
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40
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41 /** The name of the 'step' field. */
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42 public static final String STEP = "ld_step";
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43
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44 /**
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45 * The default constructor that initializes an empty State object.
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46 */
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47 public LocationDistanceSelect() {
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48 }
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49
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50 protected Element createData(
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51 XMLUtils.ElementCreator cr,
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52 Artifact artifact,
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53 StateData data,
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54 CallContext context)
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55 {
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56 Element select = ProtocolUtils.createArtNode(
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57 cr, "select", null, null);
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58
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59 cr.addAttr(select, "name", data.getName(), true);
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60
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61 Element label = ProtocolUtils.createArtNode(
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62 cr, "label", null, null);
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63
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64 Element choices = ProtocolUtils.createArtNode(
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65 cr, "choices", null, null);
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66
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67 label.setTextContent(Resources.getMsg(
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68 context.getMeta(),
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69 data.getName(),
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70 data.getName()));
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71
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72 select.appendChild(label);
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73
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74 return select;
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75 }
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76
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77
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78 protected Element[] createItems(
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79 XMLUtils.ElementCreator cr,
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80 Artifact artifact,
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81 String name,
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82 CallContext context)
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83 {
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84 double[] minmax = getMinMaxDistance(artifact);
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85
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86 double minVal = Double.MIN_VALUE;
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87 double maxVal = Double.MAX_VALUE;
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88
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89 if (minmax != null) {
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90 minVal = minmax[0];
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91 maxVal = minmax[1];
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92 }
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93 else {
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94 logger.warn("Could not read min/max distance values!");
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95 }
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96
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97 if (name.equals("ld_from")) {
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98 Element min = createItem(
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99 cr,
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100 new String[] {"min", new Double(minVal).toString()});
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101
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102 return new Element[] { min };
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103 }
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104 else if (name.equals("ld_to")) {
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105 Element max = createItem(
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106 cr,
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107 new String[] {"max", new Double(maxVal).toString()});
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108
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109 return new Element[] { max };
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110 }
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111 else {
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112 Element step = createItem(cr, new String[] {"step", DEFAULT_STEP});
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113 return new Element[] { step };
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114 }
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115
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116 }
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117
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118
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119 protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
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120 Element item = ProtocolUtils.createArtNode(cr, "item", null, null);
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121 Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
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122 Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
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123
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124 String[] arr = (String[]) obj;
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125
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126 label.setTextContent(arr[0]);
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127 value.setTextContent(arr[1]);
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128
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129 item.appendChild(label);
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130 item.appendChild(value);
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131
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132 return item;
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133 }
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134
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135
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136 protected String getUIProvider() {
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137 return "location_distance_panel";
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138 }
313
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139
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140
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141 protected double[] getMinMaxDistance(Artifact artifact) {
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142 FLYSArtifact flysArtifact = (FLYSArtifact) artifact;
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143 StateData data = flysArtifact.getData("river");
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144
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145 String name = (String) data.getValue();
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146
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147 logger.debug("Search for the min/max distances of '" + name + "'");
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148
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149 River river = RiverFactory.getRiver(name);
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150
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151 return river != null ? river.determineMinMaxDistance() : null;
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152 }
322
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153
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154
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155 @Override
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156 public boolean validate(Artifact artifact, CallContext context)
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157 throws IllegalArgumentException
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158 {
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159 logger.debug("LocationDistanceSelect.validate");
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160
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161 Map<String, StateData> data = getData();
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162
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163 String fromStr = (String) data.get(FROM).getValue();
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164 String toStr = (String) data.get(TO).getValue();
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165 String stepStr = (String) data.get(STEP).getValue();
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166
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167 try {
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168 double from = Double.parseDouble(fromStr);
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169 double to = Double.parseDouble(toStr);
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170 double step = Double.parseDouble(stepStr);
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171
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172 double[] minmaxDist = getMinMaxDistance(artifact);
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173
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174 return validateRange(minmaxDist[0], minmaxDist[1], from, to, step);
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175 }
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176 catch (NumberFormatException nfe) {
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177 throw new IllegalArgumentException("error_feed_number_format");
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178 }
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179 }
136
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180 }
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181 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org