Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/transition/TransitionBase.java @ 58:f31343d80d53
Artifact.advance initial implementiert
gnv-artifacts/trunk@40 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Tim Englich <tim.englich@intevation.de> |
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date | Tue, 08 Sep 2009 14:07:59 +0000 |
parents | f01592cd6419 |
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1 /** |
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2 * |
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3 */ |
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4 package de.intevation.gnv.transition; |
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5 |
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6 import java.util.ArrayList; |
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7 import java.util.Collection; |
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8 import java.util.HashMap; |
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9 import java.util.Iterator; |
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10 import java.util.Map; |
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11 |
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12 import org.apache.log4j.Logger; |
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13 import org.w3c.dom.Document; |
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14 import org.w3c.dom.Node; |
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15 import org.w3c.dom.NodeList; |
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16 |
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17 import de.intevation.artifactdatabase.Config; |
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18 import de.intevation.gnv.artifacts.GNVArtifactBase; |
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19 import de.intevation.gnv.geobackend.base.Result; |
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20 import de.intevation.gnv.geobackend.base.query.QueryExecutor; |
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21 import de.intevation.gnv.geobackend.base.query.QueryExecutorFactory; |
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22 import de.intevation.gnv.geobackend.base.query.exception.QueryException; |
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23 import de.intevation.gnv.transition.exception.TransitionException; |
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24 |
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25 /** |
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26 * @author Tim Englich <tim.englich@intevation.de> |
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27 * |
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28 */ |
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29 public abstract class TransitionBase implements Transition { |
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30 /** |
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31 * the logger, used to log exceptions and additonaly information |
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32 */ |
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33 private static Logger log = Logger.getLogger(GNVArtifactBase.class); |
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34 |
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35 private String id = null; |
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36 |
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37 private String description = null; |
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38 |
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39 |
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40 |
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41 protected String queryID = null; |
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42 |
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43 private Collection<String> reachableTransitions = null; |
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44 |
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45 private Collection<String> inputValueNames = null; |
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46 |
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47 private Map<String,InputValue> inputValues = null; |
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48 |
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49 private Transition parent = null; |
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50 |
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51 private Map<String,InputData> inputData = null; |
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52 |
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53 private Collection<Object> descibeData = null; |
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54 /** |
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55 * Constructor |
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56 */ |
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57 public TransitionBase() { |
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58 super(); |
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59 } |
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60 |
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61 /** |
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62 * @see de.intevation.gnv.transition.Transition#getID() |
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63 */ |
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64 public String getID() { |
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65 return this.id; |
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66 } |
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67 |
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68 /** |
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69 * @see de.intevation.gnv.transition.Transition#getDescription() |
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70 */ |
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71 public String getDescription() { |
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72 return this.description; |
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73 } |
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74 |
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75 /** |
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76 * @see de.intevation.gnv.transition.Transition#reachableTransitions() |
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77 */ |
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78 public Collection<String> reachableTransitions() { |
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79 return this.reachableTransitions; |
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80 } |
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81 |
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82 /** |
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83 * @see de.intevation.gnv.transition.Transition#getRequiredInputValues() |
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84 */ |
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85 public Collection<InputValue> getRequiredInputValues() { |
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86 return this.inputValues.values(); |
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87 } |
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88 |
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89 /** |
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90 * @see de.intevation.gnv.transition.Transition#setup(org.w3c.dom.Node) |
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91 */ |
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92 public void setup(Node configuration) { |
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93 |
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94 this.id = Config.getStringXPath(configuration,"@id"); |
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95 this.description = Config.getStringXPath(configuration,"@description"); |
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96 |
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97 log.info("Transition-ID = "+ this.id); |
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98 NodeList nodes = Config.getNodeSetXPath(configuration,"reachableTransitions/transition"); |
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99 this.reachableTransitions = new ArrayList<String>(nodes.getLength()); |
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100 for (int i = 0 ; i < nodes.getLength(); i++){ |
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101 String reachableTransition = nodes.item(i).getTextContent(); |
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102 log.info("ReachableTransition ==> "+ reachableTransition); |
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103 this.reachableTransitions.add(reachableTransition); |
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104 |
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105 } |
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106 |
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107 NodeList inputValuesNodes = Config.getNodeSetXPath(configuration,"inputvalues/inputvalue"); |
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108 this.inputValues = new HashMap<String,InputValue>(inputValuesNodes.getLength()); |
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109 this.inputValueNames = new ArrayList<String>(inputValuesNodes.getLength()); |
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110 for (int i = 0 ; i < inputValuesNodes.getLength(); i++){ |
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111 Node inputValueNode = inputValuesNodes.item(i); |
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112 InputValue inputValue = new DefaultInputValue(Config.getStringXPath(inputValueNode,"@name"), Config.getStringXPath(inputValueNode,"@type")); |
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113 log.debug(inputValue.toString()); |
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114 this.inputValues.put(inputValue.getName(),inputValue); |
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115 this.inputValueNames.add(inputValue.getName()); |
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116 } |
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117 |
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118 this.queryID = Config.getStringXPath(configuration,"queryID"); |
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119 log.info("QueryID ==> "+ this.queryID); |
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120 |
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121 } |
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122 |
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123 /** |
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124 * @see de.intevation.gnv.transition.Transition#getParent() |
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125 */ |
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126 public Transition getParent() { |
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127 return this.parent; |
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128 } |
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129 |
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130 /** |
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131 * @see de.intevation.gnv.transition.Transition#setParent(de.intevation.gnv.transition.Transition) |
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132 */ |
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133 public void setParent(Transition transition) { |
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134 this.parent = transition; |
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135 } |
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136 |
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137 /** |
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138 * @see de.intevation.gnv.transition.Transition#putInputData(java.util.Collection) |
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139 */ |
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140 public void putInputData(Collection<InputData> inputData) throws TransitionException { |
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141 log.debug("TransitionBase.putInputData"); |
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142 if (inputData != null){ |
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143 Iterator<InputData> it = inputData.iterator(); |
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144 while(it.hasNext()){ |
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145 InputData tmpItem = it.next(); |
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146 InputValue inputValue = this.inputValues.get(tmpItem.getName()); |
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147 if (inputValue != null){ |
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148 if (this.inputData == null){ |
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149 this.inputData = new HashMap<String,InputData>(inputData.size()); |
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150 // TODO validate Value; und Valueconcatenieren |
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151 this.inputData.put(tmpItem.getName(),tmpItem); |
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152 } |
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153 |
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154 }else{ |
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155 String errMsg = "No Inputvalue given for Inputdata "+ tmpItem.getName(); |
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156 log.warn(errMsg+ "Value will be ignored"); |
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157 throw new TransitionException(errMsg); |
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158 |
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159 } |
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160 } |
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161 }else{ |
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162 log.warn("No Inputdata given"); |
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163 } |
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164 |
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165 } |
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166 |
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167 /** |
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168 * @see de.intevation.gnv.transition.Transition#isTransitionReachable(java.lang.String) |
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169 */ |
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170 public boolean isTransitionReachable(String transitionID) { |
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171 log.debug("TransitionBase.isTransitionReachable"); |
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172 boolean returnValue = false; |
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173 Iterator<String> transitions = reachableTransitions.iterator(); |
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174 while (transitions.hasNext()){ |
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175 if(transitions.next().equals(transitionID)){ |
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176 log.debug("Transition "+transitionID+" wird unterst�tzt."); |
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177 returnValue = true; |
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178 break; |
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179 } |
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180 } |
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181 return returnValue; |
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182 } |
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183 |
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184 /** |
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185 * @see de.intevation.gnv.transition.Transition#advance() |
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186 */ |
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187 public void advance() throws TransitionException { |
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188 log.debug("TransitionBase.advance"); |
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189 try { |
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190 String[] filterValues = new String[this.inputValueNames.size()]; |
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191 Iterator<String> it = this.inputValueNames.iterator(); |
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192 int i = 0; |
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193 while (it.hasNext()){ |
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194 filterValues[i++] = this.inputData.get(it.next()).getValue(); |
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195 } |
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196 QueryExecutor queryExecutor = QueryExecutorFactory.getInstance().getQueryExecutor(); |
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197 Collection<Result> result = queryExecutor.executeQuery(this.queryID, filterValues); |
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198 if (this.descibeData == null){ |
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199 this.descibeData = new ArrayList<Object>(); |
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200 } |
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201 this.descibeData.add(result); |
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202 } catch (QueryException e) { |
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203 log.error(e,e); |
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204 throw new TransitionException(e); |
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205 } |
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206 } |
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207 |
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208 /** |
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209 * @see de.intevation.gnv.transition.Transition#getDescibeData() |
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210 */ |
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211 public Collection<Object> getDescibeData() { |
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212 return this.descibeData; |
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213 } |
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214 |
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215 /** |
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216 * @see de.intevation.gnv.transition.Transition#setDescibeData(java.util.Collection) |
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217 */ |
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218 public void setDescibeData(Collection<Object> descibeData) { |
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219 this.descibeData = descibeData; |
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220 |
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221 } |
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222 } |