Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/GNVArtifactBase.java @ 71:e4ecf3188bdf

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Integrated FIS-Artifact gnv-artifacts/trunk@62 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Thu, 10 Sep 2009 13:11:24 +0000
parents 0035862b0295
children 504570de21fd
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.artifacts;
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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 javax.xml.XMLConstants;
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13 import javax.xml.xpath.XPathConstants;
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14
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15 import org.apache.log4j.Logger;
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16 import org.w3c.dom.Document;
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17 import org.w3c.dom.Element;
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18 import org.w3c.dom.Node;
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19 import org.w3c.dom.NodeList;
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20
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21 import de.intevation.artifactdatabase.Config;
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22 import de.intevation.artifactdatabase.DefaultArtifact;
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23 import de.intevation.artifactdatabase.XMLUtils;
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24 import de.intevation.artifacts.ArtifactFactory;
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25 import de.intevation.artifacts.ArtifactNamespaceContext;
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26 import de.intevation.gnv.artifacts.context.GNVArtifactContext;
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27 import de.intevation.gnv.transition.DefaultInputData;
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28 import de.intevation.gnv.transition.InputData;
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29 import de.intevation.gnv.transition.InputValue;
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30 import de.intevation.gnv.transition.OutputMode;
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31 import de.intevation.gnv.transition.OutputTransition;
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32 import de.intevation.gnv.transition.Transition;
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33 import de.intevation.gnv.transition.TransitionFactory;
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34 import de.intevation.gnv.transition.exception.TransitionException;
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35 import de.intevation.gnv.utils.ArtifactXMLUtilities;
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36
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37 /**
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38 * @author Tim Englich <tim.englich@intevation.de>
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39 *
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40 */
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41 public abstract class GNVArtifactBase extends DefaultArtifact {
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42 /**
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43 * the logger, used to log exceptions and additonaly information
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44 */
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45 private static Logger log = Logger.getLogger(GNVArtifactBase.class);
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46 /**
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47 * The UID of this Class
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48 */
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49 private static final long serialVersionUID = -8907096744400741458L;
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51 /**
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52 * The Identifier for the Replacement of the Artifactname
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53 */
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54 public static final String XPATH_IDENTIFIER_REPLACE = "IDENTIFIER";
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56 /**
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57 * The XPATH to the XML-Fragment that should be used for the Configuration
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58 */
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59 public static final String XPATH_ARTIFACT_CONFIGURATION= "/artifact-database/artifacts/artifact[@name='"+XPATH_IDENTIFIER_REPLACE+"']";
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62 /**
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63 * The current Transition
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64 */
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65 protected Transition current = null;
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66
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67 /**
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68 * The Transitions that can be used
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69 */
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70 protected Map<String, Transition> transitions = null;
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71
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72 /**
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73 * The Name of the Artifact
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74 */
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75 protected String name = null;
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76
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77 private ArtifactXMLUtilities xmlUtilities = new ArtifactXMLUtilities();
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78
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79 /**
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80 * Constructor
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81 */
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82 public GNVArtifactBase() {
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83 super();
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84 }
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85
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86 /**
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87 * @see de.intevation.artifactdatabase.DefaultArtifact#advance(org.w3c.dom.Document, java.lang.Object)
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88 */
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89 @Override
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90 public Document advance(Document target, Object context) {
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91 Document result = XMLUtils.newDocument();
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92 if (this.current != null){
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93 String transitionName = this.readTransitionName(target);
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94 if (this.current.isTransitionReachable(transitionName)){
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95 // 1. Pr�fung ob Transition valide ist
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96 if (this.current.validate()){
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97
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98 try {
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99 Transition nextStep = this.transitions.get(transitionName);
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100 // 2.Ergebnisse Berechnen
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101 this.current.advance();
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102 // 3. Ergebnisse �bergeben
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103 nextStep.setDescibeData(this.current.getDescibeData());
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104 nextStep.putInputData(this.current.getInputData());
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105 // 4. Umschalten auf neue Transistion
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106 this.current = nextStep;
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107 } catch (TransitionException e) {
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108 log.error(e,e);
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109 // TODO: Errormmessage senden.
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110 }
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111
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112 }else{
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113 log.error("Advance nicht m�glich, da die Bedingungen f�r den �bergang " +
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114 "in den neuen Zustand noch nicht gegeben ist.");
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115 // TODO: Errormmessage senden.
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116 }
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117
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118 }else{
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119 log.error("Transitions�bergang wird nicht unterst�tzt.");
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120 // TODO: Errormmessage senden.
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121 }
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122 }else{
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123 log.error("Kein Transitionsschritt aktiviert.");
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124 // TODO: Errormmessage senden.
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125 }
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126 return result;
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127 }
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128
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129 protected String readTransitionName(Document document) {
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130 String returnValue = Config.getStringXPath(document, "action/target/@name");
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131 return returnValue;
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132 }
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133
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134 protected Node getConfigurationFragment(Document document){
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135 log.debug("GNVArtifactBase.getConfigurationFragment");
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136 String xpathQuery = XPATH_ARTIFACT_CONFIGURATION.replaceAll(XPATH_IDENTIFIER_REPLACE, this.name);
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137 log.debug(xpathQuery);
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138 return Config.getNodeXPath(document,xpathQuery);
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139 }
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140
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141 /**
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142 * @see de.intevation.artifactdatabase.DefaultArtifact#feed(org.w3c.dom.Document, java.lang.Object)
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143 */
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144 @Override
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145 public Document feed(Document target, Object context) {
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146 Document result = XMLUtils.newDocument();
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147 try {
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148 if (this.current != null){
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149 this.current.putInputData(this.parseInputData(target));
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150 // TODO Ergebnisdokument erzeugen.
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151 }
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152 } catch (TransitionException e) {
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153 log.error(e,e);
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154 //TODO: Fehlerdokumenterzeugen.
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155 }
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156 return result;
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157 }
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158
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159 /**
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160 * @see de.intevation.artifactdatabase.DefaultArtifact#setup(java.lang.String, java.lang.Object)
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161 */
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162 @Override
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163 public void setup(String identifier, ArtifactFactory factory, Object context) {
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164 log.debug("GNVArtifactBase.setup");
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165 super.setup(identifier, factory, context);
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166 if (context instanceof GNVArtifactContext){
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167 GNVArtifactContext gnvContext = (GNVArtifactContext)context;
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168 Document doc = gnvContext.getConfig();
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169 Node artifactNode = this.getConfigurationFragment(doc);
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170 NodeList transitionList = Config.getNodeSetXPath(artifactNode, "transitions/transition");
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171 this.transitions = new HashMap<String, Transition>(transitionList.getLength());
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172 for (int i = 0 ; i < transitionList.getLength(); i++){
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173 Transition tmpTransition = TransitionFactory.getInstance().createTransition(transitionList.item(i));
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174 if (tmpTransition != null){
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175 this.transitions.put(tmpTransition.getID(), tmpTransition);
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176 if (this.current == null){
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177 this.current = tmpTransition;
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178 }
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179 }
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180 }
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181
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182 }
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183 }
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184
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185
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186 protected Document createDescibeOutput(){
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187 log.debug("GNVArtifactBase.createDescibeOutput");
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188 Document document = XMLUtils.newDocument();
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189 Element rootNode = this.createRootNode(document);
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190 this.createHeader(rootNode, document, "describe");
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2c5d8f5bced1 Outputs integrated in describe and XForms integrated
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191 this.createOutputs(rootNode, document);
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192 this.createCurrentState(rootNode, document);
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193 this.createReachableStates(rootNode, document);
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194 this.createModel(rootNode, document);
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195 this.createUserInterface(rootNode, document);
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196
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197 return document;
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198 }
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199
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200 protected Element createRootNode(Document document){
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201 Element rootNode = xmlUtilities.createArtifactElement(document,"result");
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202 document.appendChild(rootNode);
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203 return rootNode;
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204 }
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205
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206 protected void createHeader(Element parent, Document document, String documentType){
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207 Element typeNode = xmlUtilities.createArtifactElement(document,"type");
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208 typeNode.setAttribute("name", documentType);
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209 parent.appendChild(typeNode);
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210
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211 Element uuidNode = xmlUtilities.createArtifactElement(document,"uuid");
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212 uuidNode.setAttribute("value", super.identifier);
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213 parent.appendChild(uuidNode);
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214
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215 Element hashNode = xmlUtilities.createArtifactElement(document,"hash");
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216 hashNode.setAttribute("value", this.hash());
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217 parent.appendChild(hashNode);
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218
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219
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220 }
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221 protected void createReachableStates(Element parent,Document document){
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222 Element stateNode = xmlUtilities.createArtifactElement(document,"reachable-states");
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223 if (this.current != null){
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224 Iterator<String> states = this.current.reachableTransitions().iterator();
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225 while(states.hasNext()){
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226 String value = states.next();
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227 Element currentNode = xmlUtilities.createArtifactElement(document,"state");
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228 currentNode.setAttribute("name", value);
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229 currentNode.setAttribute("description", transitions.get(value).getDescription());
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230 stateNode.appendChild(currentNode);
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231 }
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232 }
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233 parent.appendChild(stateNode);
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234 }
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235
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236 protected void createCurrentState(Element parent, Document document){
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237 Element stateNode = xmlUtilities.createArtifactElement(document,"state");
54
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238 stateNode.setAttribute("name", this.current.getID());
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239 stateNode.setAttribute("description", this.current.getDescription());
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240 parent.appendChild(stateNode);
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241 }
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242
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243
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244 protected void createModel(Element parent, Document document){
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245 Element modelNode = xmlUtilities.createArtifactElement(document,"model");
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246 if (this.current != null){
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247 Collection<InputValue> inputValues = this.current.getRequiredInputValues();
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248 if (inputValues != null){
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249 Iterator<InputValue> it = inputValues.iterator();
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250 while(it.hasNext()){
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251 InputValue inputValue = it.next();
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252 Element inputNode = xmlUtilities.createArtifactElement(document,"input");
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253 inputNode.setAttribute("name", inputValue.getName());
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254 inputNode.setAttribute("type", inputValue.getType());
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255 modelNode.appendChild(inputNode);
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256 }
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257 }
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258 }
54
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259 parent.appendChild(modelNode);
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260 }
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261
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262 protected void createUserInterface(Element parent, Document document){
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263 Element uiNode = xmlUtilities.createArtifactElement(document,"ui");
54
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264
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5f47881f7c97 Implementation of the MIN- / MAX-Value Representation
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265 if (this.current != null){
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266 this.current.describe(document, uiNode);
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267 }
54
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268
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269 parent.appendChild(uiNode);
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270 }
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271
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272 protected void createOutputs(Element parent, Document document){
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273 log.debug("GNVArtifactBase.createOutputs");
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274 Element outputsNode = xmlUtilities.createArtifactElement(document,"outputs");
64
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275 if (this.current instanceof OutputTransition){
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276 Collection<OutputMode> outputModes = ((OutputTransition)this.current).getOutputModes();
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277 if (outputModes != null){
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278 Iterator<OutputMode> it = outputModes.iterator();
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279 while(it.hasNext()){
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280 OutputMode outputMode = it.next();
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281 log.debug("Write Outputnode for "+ outputMode.toString());
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282 Element outputModeNode = xmlUtilities.createArtifactElement(document,"output");
64
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283 outputModeNode.setAttribute("name", outputMode.getName());
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284 outputModeNode.setAttribute("description", outputMode.getDescription());
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285 outputModeNode.setAttribute("mime-type", outputMode.getMimeType());
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286 outputsNode.appendChild(outputModeNode);
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287 }
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288 }else{
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289 log.warn("No Outputmodes given.");
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290 }
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291 }
54
09b4bf848c7b 2009-09-08 Tim Englich <tim.englich@intevation.de>
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292 parent.appendChild(outputsNode);
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293 }
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294
09b4bf848c7b 2009-09-08 Tim Englich <tim.englich@intevation.de>
Tim Englich <tim.englich@intevation.de>
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295
57
f01592cd6419 Funktionalität Feed initial bereitgestellt.
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296 protected Collection<InputData> parseInputData(Document document){
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297 log.debug("GNVArtifactBase.parseInputData");
f01592cd6419 Funktionalität Feed initial bereitgestellt.
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298 Collection<InputData> returnValue = null;
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299
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e4ecf3188bdf Integrated FIS-Artifact
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300 log.debug(new ArtifactXMLUtilities().writeDocument2String(document));
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301
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302 NodeList inputElemets = (NodeList)XMLUtils.xpath(document, "/action/data/input",XPathConstants.NODESET, ArtifactNamespaceContext.INSTANCE);//Config.getNodeSetXPath(document, "");
57
f01592cd6419 Funktionalität Feed initial bereitgestellt.
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diff changeset
303 if(inputElemets != null){
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304 returnValue = new ArrayList<InputData>(inputElemets.getLength());
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diff changeset
305 for (int i = 0; i < inputElemets.getLength(); i++){
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306 Node inputDataNode = inputElemets.item(i);
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307 InputData inputData = new DefaultInputData(Config.getStringXPath(inputDataNode,"@name"), Config.getStringXPath(inputDataNode,"@value"));
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308 log.debug(inputData.toString());
f01592cd6419 Funktionalität Feed initial bereitgestellt.
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309 returnValue.add(inputData);
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310 }
f01592cd6419 Funktionalität Feed initial bereitgestellt.
Tim Englich <tim.englich@intevation.de>
parents: 56
diff changeset
311 }
f01592cd6419 Funktionalität Feed initial bereitgestellt.
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312 return returnValue;
f01592cd6419 Funktionalität Feed initial bereitgestellt.
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313 }
68
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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314 /**
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315 * @see de.intevation.artifactdatabase.DefaultArtifact#out(org.w3c.dom.Document, java.lang.Object)
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316 */
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317 public byte[] out(Document format, Object context) {
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318 log.debug("TGNVArtifactBase.out");
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319 try {
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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320
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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321 if (current != null && current instanceof OutputTransition){
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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322 return ((OutputTransition)current).out(this.readOutputType(format));
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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323 }
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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324 } catch (TransitionException e) {
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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325 log.error(e,e);
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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326 }
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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327 return null;
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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328 }
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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parents: 64
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329
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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330 protected String readOutputType(Document document){
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331 String value = Config.getStringXPath(document,"action/out/@name");
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
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332 return value;
d117fd4b82e5 Chartrendering integrated in Timeseries Transition
Tim Englich <tim.englich@intevation.de>
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333 }
52
4d6a82b96059 First Implementation of the GNV-Artifacts
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
334 }
http://dive4elements.wald.intevation.org