Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/WINFOArtifact.java @ 124:b7a9557957d1
Appende the static data to the static node of the DESCRIBE document.
flys-artifacts/trunk@1452 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Thu, 10 Mar 2011 13:31:36 +0000 |
parents | e0ded17a4846 |
children | 21d791e21aca |
rev | line source |
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1 package de.intevation.flys.artifacts; |
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2 |
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3 import java.util.List; |
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4 import java.util.Set; |
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5 |
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6 import javax.xml.xpath.XPathConstants; |
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7 |
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8 import org.w3c.dom.Document; |
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9 import org.w3c.dom.Element; |
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10 import org.w3c.dom.Node; |
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11 |
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12 import org.apache.log4j.Logger; |
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13 |
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14 import de.intevation.artifacts.ArtifactNamespaceContext; |
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15 import de.intevation.artifacts.CallContext; |
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16 |
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17 import de.intevation.artifactdatabase.ProtocolUtils; |
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18 import de.intevation.artifactdatabase.data.StateData; |
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19 import de.intevation.artifactdatabase.state.State; |
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20 import de.intevation.artifactdatabase.state.StateEngine; |
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21 import de.intevation.artifactdatabase.transition.TransitionEngine; |
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22 |
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23 import de.intevation.artifacts.common.utils.XMLUtils; |
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24 |
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25 import de.intevation.flys.artifacts.context.FLYSContext; |
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26 |
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27 |
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28 /** |
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29 * The default WINFO artifact. |
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30 * |
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31 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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32 */ |
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33 public class WINFOArtifact extends FLYSArtifact { |
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34 |
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35 /** The logger for this class */ |
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36 private static Logger logger = Logger.getLogger(WINFOArtifact.class); |
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37 |
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38 |
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39 /** The name of the artifact.*/ |
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40 public static final String ARTIFACT_NAME = "winfo"; |
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41 |
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42 /** XPath */ |
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43 public static final String XPATH_STATIC_UI ="/art:result/art:ui/art:static"; |
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44 |
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45 |
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46 /** |
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47 * The default constructor. |
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48 */ |
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49 public WINFOArtifact() { |
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50 } |
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51 |
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52 |
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53 /** |
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54 * This method returns a description of this artifact. |
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55 * |
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56 * @param data Some data. |
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57 * @param CallContext The CallContext. |
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58 * |
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59 * @return the description of this artifact. |
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60 */ |
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61 public Document describe(Document data, CallContext context) { |
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62 logger.debug("Describe: the current state is: " + getCurrentStateId()); |
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63 |
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64 FLYSContext flysContext = null; |
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65 if (context instanceof FLYSContext) { |
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66 flysContext = (FLYSContext) context; |
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67 } |
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68 else { |
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69 flysContext = (FLYSContext) context.globalContext(); |
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70 } |
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71 |
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72 StateEngine stateEngine = (StateEngine) flysContext.get( |
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73 FLYSContext.STATE_ENGINE_KEY); |
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74 |
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75 TransitionEngine transitionEngine = (TransitionEngine) flysContext.get( |
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76 FLYSContext.TRANSITION_ENGINE_KEY); |
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77 |
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78 List<State> reachable = transitionEngine.getReachableStates( |
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79 getCurrentState(context), stateEngine); |
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80 |
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81 Document description = XMLUtils.newDocument(); |
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82 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator( |
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83 description, |
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84 ArtifactNamespaceContext.NAMESPACE_URI, |
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85 ArtifactNamespaceContext.NAMESPACE_PREFIX); |
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86 |
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87 Element root = ProtocolUtils.createRootNode(creator); |
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88 description.appendChild(root); |
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89 |
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90 State current = getCurrentState(context); |
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91 |
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92 ProtocolUtils.appendDescribeHeader(creator, root, identifier(), hash()); |
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93 ProtocolUtils.appendState(creator, root, current); |
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94 ProtocolUtils.appendReachableStates(creator, root, reachable); |
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95 |
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96 current.describe(description, root, context, identifier()); |
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97 |
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98 Node ui = (Node) XMLUtils.xpath( |
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99 description, |
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100 XPATH_STATIC_UI, |
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101 XPathConstants.NODE, |
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102 ArtifactNamespaceContext.INSTANCE); |
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103 |
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104 appendStaticUI(creator, ui); |
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105 |
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106 return description; |
105
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107 } |
121
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108 |
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109 |
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110 /** |
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111 * Returns the name of the concrete artifact. |
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112 * |
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113 * @return the name of the concrete artifact. |
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114 */ |
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115 public String getName() { |
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116 return ARTIFACT_NAME; |
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117 } |
124
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118 |
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119 |
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120 /** |
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121 * This method appends the static data - that has already been inserted by |
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122 * the user - to the static node of the DESCRIBE document. |
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123 * |
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124 * @param cr The ElementCreator that is used to create new elements. |
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125 * @param ui The static ui node. |
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126 */ |
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127 protected void appendStaticUI(XMLUtils.ElementCreator cr, Node ui) { |
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128 Set<String> keys = data.keySet(); |
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129 |
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130 // XXX This just handles single selection string values. If we need more |
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131 // complex (maybe multiselect) objects we should introduce a data |
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132 // structure for this - this structure should have a method that returns |
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133 // a <data> node that contains its items. |
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134 for (String k: keys) { |
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135 logger.debug("The key = " + k); |
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136 StateData d = getData(k); |
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137 |
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138 Element dataElement = cr.create("data"); |
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139 cr.addAttr(dataElement, "name", (String) d.getName(), true); |
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140 cr.addAttr(dataElement, "type", d.getType(), true); |
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141 |
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142 Element itemElement = cr.create("item"); |
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143 cr.addAttr(itemElement, "value", (String) d.getValue(), true); |
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144 // TODO Description (human readable) is missing |
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145 |
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146 dataElement.appendChild(itemElement); |
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147 ui.appendChild(dataElement); |
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148 } |
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149 } |
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150 } |
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151 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |