Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/LocationDistanceSelect.java @ 627:833290f16f09
ISSUE-85 (part I/III) Added further fields for the location/range state.
flys-artifacts/trunk@1992 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Tue, 24 May 2011 11:27:37 +0000 |
parents | 929137ee8154 |
children | 51b69bca4560 |
rev | line source |
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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 RangeState { |
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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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ISSUE-85 (part I/III) Added further fields for the location/range state.
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33 /** The name of the 'mode' field. */ |
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34 public static final String MODE = "ld_mode"; |
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35 |
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ISSUE-85 (part I/III) Added further fields for the location/range state.
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36 /** The name of the 'locations' field.*/ |
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37 public static final String LOCATIONS = "ld_locations"; |
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38 |
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39 /** The name of the 'from' field. */ |
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40 public static final String FROM = "ld_from"; |
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41 |
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42 /** The name of the 'to' field. */ |
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43 public static final String TO = "ld_to"; |
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44 |
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45 /** The name of the 'step' field. */ |
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46 public static final String STEP = "ld_step"; |
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47 |
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48 /** |
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49 * The default constructor that initializes an empty State object. |
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50 */ |
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51 public LocationDistanceSelect() { |
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52 } |
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53 |
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54 protected Element createData( |
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55 XMLUtils.ElementCreator cr, |
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56 Artifact artifact, |
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57 StateData data, |
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58 CallContext context) |
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59 { |
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60 Element select = ProtocolUtils.createArtNode( |
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61 cr, "select", null, null); |
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62 |
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63 cr.addAttr(select, "name", data.getName(), true); |
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64 |
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65 Element label = ProtocolUtils.createArtNode( |
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66 cr, "label", null, null); |
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67 |
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68 Element choices = ProtocolUtils.createArtNode( |
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69 cr, "choices", null, null); |
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70 |
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71 label.setTextContent(Resources.getMsg( |
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72 context.getMeta(), |
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73 data.getName(), |
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74 data.getName())); |
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75 |
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76 select.appendChild(label); |
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77 |
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78 return select; |
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79 } |
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80 |
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81 |
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82 protected Element[] createItems( |
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83 XMLUtils.ElementCreator cr, |
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84 Artifact artifact, |
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85 String name, |
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86 CallContext context) |
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87 { |
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88 double[] minmax = getMinMaxDistance(artifact); |
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89 |
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90 double minVal = Double.MIN_VALUE; |
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91 double maxVal = Double.MAX_VALUE; |
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92 |
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93 if (minmax != null) { |
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94 minVal = minmax[0]; |
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95 maxVal = minmax[1]; |
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96 } |
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97 else { |
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98 logger.warn("Could not read min/max distance values!"); |
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99 } |
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100 |
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101 if (name.equals("ld_from")) { |
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102 Element min = createItem( |
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103 cr, |
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104 new String[] {"min", new Double(minVal).toString()}); |
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105 |
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106 return new Element[] { min }; |
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107 } |
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108 else if (name.equals("ld_to")) { |
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109 Element max = createItem( |
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110 cr, |
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111 new String[] {"max", new Double(maxVal).toString()}); |
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112 |
136
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113 return new Element[] { max }; |
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114 } |
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115 else { |
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116 Element step = createItem(cr, new String[] {"step", DEFAULT_STEP}); |
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117 return new Element[] { step }; |
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118 } |
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119 |
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120 } |
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121 |
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122 |
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123 protected Element createItem(XMLUtils.ElementCreator cr, Object obj) { |
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124 Element item = ProtocolUtils.createArtNode(cr, "item", null, null); |
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125 Element label = ProtocolUtils.createArtNode(cr, "label", null, null); |
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126 Element value = ProtocolUtils.createArtNode(cr, "value", null, null); |
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127 |
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128 String[] arr = (String[]) obj; |
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129 |
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130 label.setTextContent(arr[0]); |
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131 value.setTextContent(arr[1]); |
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132 |
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133 item.appendChild(label); |
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134 item.appendChild(value); |
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135 |
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136 return item; |
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137 } |
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138 |
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139 |
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140 protected String getUIProvider() { |
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141 return "location_distance_panel"; |
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142 } |
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143 |
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144 |
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145 protected double[] getMinMaxDistance(Artifact artifact) { |
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146 FLYSArtifact flysArtifact = (FLYSArtifact) artifact; |
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147 StateData data = getData(flysArtifact, "river"); |
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148 |
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149 String name = data != null ? (String) data.getValue() : ""; |
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150 |
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151 logger.debug("Search for the min/max distances of '" + name + "'"); |
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152 |
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153 River river = RiverFactory.getRiver(name); |
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154 |
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155 return river != null ? river.determineMinMaxDistance() : null; |
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156 } |
322
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157 |
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158 |
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159 @Override |
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160 public boolean validate(Artifact artifact, CallContext context) |
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161 throws IllegalArgumentException |
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162 { |
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163 logger.debug("LocationDistanceSelect.validate"); |
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164 |
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165 FLYSArtifact flys = (FLYSArtifact) artifact; |
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166 |
627
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167 if (flys.isRange()) { |
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168 return validateRange(flys, context); |
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169 } |
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170 else { |
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171 return validateLocations(flys, context); |
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172 } |
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173 } |
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174 |
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175 |
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176 protected boolean validateLocations(FLYSArtifact flys, CallContext context) |
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177 throws IllegalArgumentException |
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178 { |
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179 StateData dValues = getData(flys, LOCATIONS); |
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180 String values = dValues != null ? (String)dValues.getValue() : null; |
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181 |
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182 if (values == null || values.length() == 0) { |
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183 throw new IllegalArgumentException("error_empty_state"); |
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184 } |
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185 |
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186 double[] absMinMax = getMinMaxDistance(flys); |
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187 double[] relMinMax = getMinMaxFromString(values); |
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188 |
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189 if (relMinMax[0] < absMinMax[0] || relMinMax[0] > absMinMax[1]) { |
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190 throw new IllegalArgumentException("error_feed_from_out_of_range"); |
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191 } |
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192 |
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193 if (relMinMax[1] > absMinMax[1] || relMinMax[1] < absMinMax[0]) { |
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194 throw new IllegalArgumentException("error_feed_to_out_of_range"); |
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195 } |
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196 |
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197 return true; |
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198 } |
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199 |
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200 |
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201 protected boolean validateRange(FLYSArtifact flys, CallContext context) |
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202 throws IllegalArgumentException |
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203 { |
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204 StateData dFrom = getData(flys, FROM); |
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205 StateData dTo = getData(flys, TO); |
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206 StateData dStep = getData(flys, STEP); |
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207 |
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208 String fromStr = dFrom != null ? (String) dFrom.getValue() : null; |
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209 String toStr = dTo != null ? (String) dTo.getValue() : null; |
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210 String stepStr = dStep != null ? (String) dStep.getValue() : null; |
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211 |
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212 if (fromStr == null || toStr == null || stepStr == null) { |
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213 throw new IllegalArgumentException("error_empty_state"); |
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214 } |
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215 |
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216 try { |
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217 double from = Double.parseDouble(fromStr); |
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218 double to = Double.parseDouble(toStr); |
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219 double step = Double.parseDouble(stepStr); |
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220 |
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221 double[] minmaxDist = getMinMaxDistance(flys); |
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222 |
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223 return validateBounds(minmaxDist[0], minmaxDist[1], from, to, step); |
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224 } |
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225 catch (NumberFormatException nfe) { |
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226 throw new IllegalArgumentException("error_invalid_double_value"); |
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227 } |
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228 } |
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229 |
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230 |
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231 /** |
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232 * Extracts the min/max values from String <i>s</i>. An |
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233 * IllegalArgumentException is thrown if there is a value that throws a |
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234 * NumberFormatException. |
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235 * |
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236 * @param s String that contains whitespace separated double values. |
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237 * |
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238 * @return a 2dmin array [min,max]. |
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239 */ |
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240 public static double[] getMinMaxFromString(String s) |
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241 throws IllegalArgumentException |
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242 { |
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243 String[] values = s.split(" "); |
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244 |
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245 double[] minmax = new double[] { |
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246 Double.MAX_VALUE, |
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247 -Double.MAX_VALUE }; |
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248 |
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249 for (String v: values) { |
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250 try { |
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251 double value = Double.valueOf(v); |
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252 |
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253 minmax[0] = minmax[0] < value ? minmax[0] : value; |
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254 minmax[1] = minmax[1] > value ? minmax[1] : value; |
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255 } |
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256 catch (NumberFormatException nfe) { |
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257 throw new IllegalArgumentException( |
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258 "error_invalid_double_value"); |
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259 } |
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260 } |
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261 |
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262 return minmax; |
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263 } |
136
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264 } |
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265 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |