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>
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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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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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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14 import de.intevation.artifacts.ArtifactNamespaceContext;
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15 import de.intevation.artifacts.CallContext;
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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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23 import de.intevation.artifacts.common.utils.XMLUtils;
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25 import de.intevation.flys.artifacts.context.FLYSContext;
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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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39 /** The name of the artifact.*/
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40 public static final String ARTIFACT_NAME = "winfo";
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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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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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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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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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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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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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87 Element root = ProtocolUtils.createRootNode(creator);
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88 description.appendChild(root);
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90 State current = getCurrentState(context);
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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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96 current.describe(description, root, context, identifier());
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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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106 return description;
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107 }
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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 }
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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 }
105
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150 }
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151 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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