Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/WINFOArtifact.java @ 144:dde6904ba160

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The DESCRIBE of the WINFO artifact contains the available output modes now. flys-artifacts/trunk@1544 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 23 Mar 2011 10:52:01 +0000
parents f3dfa188d8b2
children c97f9bc9b642
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.Vector;
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5
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6 import org.w3c.dom.Document;
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7 import org.w3c.dom.Element;
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8 import org.w3c.dom.Node;
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9
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10 import org.apache.log4j.Logger;
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11
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12 import de.intevation.artifacts.ArtifactNamespaceContext;
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13 import de.intevation.artifacts.CallContext;
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15 import de.intevation.artifactdatabase.ProtocolUtils;
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16 import de.intevation.artifactdatabase.state.Output;
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17 import de.intevation.artifactdatabase.state.State;
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18 import de.intevation.artifactdatabase.state.StateEngine;
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19 import de.intevation.artifactdatabase.transition.TransitionEngine;
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21 import de.intevation.artifacts.common.utils.XMLUtils;
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23 import de.intevation.flys.artifacts.states.DefaultState;
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24 import de.intevation.flys.artifacts.context.FLYSContext;
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25
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26
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27 /**
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28 * The default WINFO artifact.
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29 *
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30 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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31 */
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32 public class WINFOArtifact extends FLYSArtifact {
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33
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34 /** The logger for this class */
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35 private static Logger logger = Logger.getLogger(WINFOArtifact.class);
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37
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38 /** The name of the artifact.*/
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39 public static final String ARTIFACT_NAME = "winfo";
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40
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41 /** XPath */
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42 public static final String XPATH_STATIC_UI ="/art:result/art:ui/art:static";
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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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51
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52 /**
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53 * This method returns a description of this artifact.
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54 *
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55 * @param data Some data.
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56 * @param context The CallContext.
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57 *
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58 * @return the description of this artifact.
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59 */
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60 public Document describe(Document data, CallContext context) {
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61 logger.debug("Describe: the current state is: " + getCurrentStateId());
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63 FLYSContext flysContext = null;
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64 if (context instanceof FLYSContext) {
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65 flysContext = (FLYSContext) context;
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66 }
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67 else {
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68 flysContext = (FLYSContext) context.globalContext();
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69 }
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71 StateEngine stateEngine = (StateEngine) flysContext.get(
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72 FLYSContext.STATE_ENGINE_KEY);
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73
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74 TransitionEngine transitionEngine = (TransitionEngine) flysContext.get(
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75 FLYSContext.TRANSITION_ENGINE_KEY);
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76
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77 List<State> reachable = transitionEngine.getReachableStates(
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78 getCurrentState(context), stateEngine);
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79
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80 Document description = XMLUtils.newDocument();
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81 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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82 description,
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83 ArtifactNamespaceContext.NAMESPACE_URI,
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84 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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86 Element root = ProtocolUtils.createRootNode(creator);
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87 description.appendChild(root);
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89 State current = getCurrentState(context);
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91 ProtocolUtils.appendDescribeHeader(creator, root, identifier(), hash());
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92 ProtocolUtils.appendState(creator, root, current);
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93 ProtocolUtils.appendReachableStates(creator, root, reachable);
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95 Element ui = ProtocolUtils.createArtNode(
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96 creator, "ui", null, null);
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98 Element staticUI = ProtocolUtils.createArtNode(
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99 creator, "static", null, null);
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101 Element outs = ProtocolUtils.createArtNode(
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102 creator, "outputmodes", null, null);
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103 appendOutputModes(description, outs, context, identifier());
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104
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105 appendStaticUI(description, staticUI, context, identifier());
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107 Element dynamic = current.describe(
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108 description,
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109 root,
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110 context,
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111 identifier());
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113 if (dynamic != null) {
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114 ui.appendChild(dynamic);
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115 }
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117 ui.appendChild(staticUI);
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119 root.appendChild(ui);
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120 root.appendChild(outs);
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122 return description;
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123 }
121
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124
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125
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126 /**
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127 * Returns the name of the concrete artifact.
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128 *
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129 * @return the name of the concrete artifact.
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130 */
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131 public String getName() {
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132 return ARTIFACT_NAME;
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133 }
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134
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135
144
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136 protected void appendOutputModes(
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137 Document doc,
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138 Element outs,
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139 CallContext context,
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140 String uuid)
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141 {
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142 Vector<String> stateIds = getPreviousStateIds();
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143
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144 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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145 doc,
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146 ArtifactNamespaceContext.NAMESPACE_URI,
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147 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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148
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149 FLYSContext flysContext = getFlysContext(context);
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150 StateEngine engine = (StateEngine) flysContext.get(
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151 FLYSContext.STATE_ENGINE_KEY);
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152
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153 for (String stateId: stateIds) {
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154 logger.debug("Append output modes for state: " + stateId);
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155 State state = engine.getState(stateId);
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156
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157 List<Output> list = state.getOutputs();
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158 if (list == null || list.size() == 0) {
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159 continue;
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160 }
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161
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162 ProtocolUtils.appendOutputModes(creator, outs, list);
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163 }
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164
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165 // TODO If the current state is already filled with data, the output is
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166 // available as well! So we need some code to append the outputs of the
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167 // current already filled state.
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168 }
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169
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170
124
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171 /**
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172 * This method appends the static data - that has already been inserted by
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173 * the user - to the static node of the DESCRIBE document.
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174 *
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175 * @param doc The document.
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176 * @param ui The root node.
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177 * @param context The CallContext.
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178 * @param uuid The identifier of the artifact.
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179 */
128
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180 protected void appendStaticUI(
134
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181 Document doc,
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182 Node ui,
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183 CallContext context,
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184 String uuid)
128
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185 {
134
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186 Vector<String> stateIds = getPreviousStateIds();
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187
134
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188 FLYSContext flysContext = getFlysContext(context);
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189 StateEngine engine = (StateEngine) flysContext.get(
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190 FLYSContext.STATE_ENGINE_KEY);
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191
134
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192 for (String stateId: stateIds) {
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193 logger.debug("Append static data for state: " + stateId);
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194 DefaultState state = (DefaultState) engine.getState(stateId);
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195 ui.appendChild(state.describeStatic(doc, ui, context, uuid));
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196 }
124
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197
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198 }
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199 }
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200 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org