Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/transition/TransitionBase.java @ 58:f31343d80d53

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Artifact.advance initial implementiert gnv-artifacts/trunk@40 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Tue, 08 Sep 2009 14:07:59 +0000
parents f01592cd6419
children 2c5d8f5bced1
rev   line source
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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 }
52
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222 }
http://dive4elements.wald.intevation.org