annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/WINFOArtifact.java @ 115:b51e92fef704

The RiverSelect state creates the dynamic UI part for the describe document now. flys-artifacts/trunk@1304 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 08 Feb 2011 09:11:25 +0000
parents 0fab16cb4d44
children 84c0b151203e
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
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5 import org.w3c.dom.Document;
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6 import org.w3c.dom.Element;
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7
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8 import org.apache.log4j.Logger;
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9
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10 import de.intevation.artifacts.ArtifactFactory;
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11 import de.intevation.artifacts.ArtifactNamespaceContext;
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12 import de.intevation.artifacts.CallContext;
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14 import de.intevation.artifactdatabase.DefaultArtifact;
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15 import de.intevation.artifactdatabase.ProtocolUtils;
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16 import de.intevation.artifactdatabase.state.State;
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17 import de.intevation.artifactdatabase.state.StateEngine;
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18 import de.intevation.artifactdatabase.transition.TransitionEngine;
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20 import de.intevation.artifacts.common.utils.XMLUtils;
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21
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22 import de.intevation.flys.artifacts.context.FLYSContext;
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23
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24
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25 /**
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26 * The default WINFO artifact.
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27 *
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28 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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29 */
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30 public class WINFOArtifact extends DefaultArtifact {
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31
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32 /** The logger for this class */
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33 private static Logger logger = Logger.getLogger(WINFOArtifact.class);
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35 /** The name of the artifact. */
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36 public static final String ARTIFACT_NAME = "winfo";
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37
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38 /** The XPath to the name of the artifact in its configuration. */
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39 public static final String XPATH_ARTIFACT_NAME = "@name";
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41 /** The current state. */
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42 protected State currentState;
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43
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44
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45 /**
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46 * The default constructor.
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47 */
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48 public WINFOArtifact() {
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49 }
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50
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51
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52 /**
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53 * Set the current state of this artifact.
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54 *
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55 * @param state The new current state.
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56 */
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57 protected void setCurrentState(State state) {
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58 currentState = state;
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59 }
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60
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61
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62 /**
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63 * Initialize the artifact and insert new data if <code>data</code> contains
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64 * information necessary for this artifact.
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65 *
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66 * @param identifier The UUID.
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67 * @param factory The factory that is used to create this artifact.
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68 * @param context The CallContext.
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69 * @param data Some optional data.
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70 */
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71 @Override
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72 public void setup(
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73 String identifier,
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74 ArtifactFactory factory,
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75 Object context,
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76 Document data)
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77 {
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78 logger.debug("Setup this artifact with the uuid: " + identifier);
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79
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80 super.setup(identifier, factory, context, data);
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81
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82 FLYSContext flysContext = (FLYSContext) context;
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83 StateEngine engine = (StateEngine) flysContext.get(
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84 FLYSContext.STATE_ENGINE_KEY);
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86 List<State> states = engine.getStates(ARTIFACT_NAME);
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87
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88 setCurrentState(states.get(0));
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89 }
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91
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92 /**
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93 * This method returns a description of this artifact.
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94 *
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95 * @param data Some data.
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96 * @param CallContext The CallContext.
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97 *
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98 * @return the description of this artifact.
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99 */
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100 public Document describe(Document data, CallContext context) {
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101 logger.debug("Describe: the current state is: " + currentState.getID());
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102
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103 FLYSContext flysContext = null;
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104 if (context instanceof FLYSContext) {
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105 flysContext = (FLYSContext) context;
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106 }
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107 else {
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108 flysContext = (FLYSContext) context.globalContext();
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109 }
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111 StateEngine stateEngine = (StateEngine) flysContext.get(
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112 FLYSContext.STATE_ENGINE_KEY);
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113
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114 TransitionEngine transitionEngine = (TransitionEngine) flysContext.get(
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115 FLYSContext.TRANSITION_ENGINE_KEY);
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116
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117 List<State> reachable = transitionEngine.getReachableStates(
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118 currentState, stateEngine);
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119
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120 Document description = XMLUtils.newDocument();
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121 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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122 description,
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123 ArtifactNamespaceContext.NAMESPACE_URI,
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124 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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125
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126 Element root = ProtocolUtils.createRootNode(creator);
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127 description.appendChild(root);
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128
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129 ProtocolUtils.appendDescribeHeader(creator, root, identifier(), hash());
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130 ProtocolUtils.appendState(creator, root, currentState);
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131 ProtocolUtils.appendReachableStates(creator, root, reachable);
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132
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133 currentState.describe(description, root, context, identifier());
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134
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135 return description;
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136 }
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137 }
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138 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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