Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/AnnotationArtifact.java @ 1094:b1c6d945848d

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Added a new method to FLYSArtifact to destroy a single state (call its endOfLife). flys-artifacts/trunk@2597 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 26 Aug 2011 14:55:18 +0000
parents 3067e700fc13
children af73f196eccc
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.ArrayList;
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4 import java.util.List;
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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
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9 import org.apache.log4j.Logger;
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10
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11 import org.hibernate.Session;
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12
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13 //import net.sf.ehcache.Cache;
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14
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15 import de.intevation.artifacts.Artifact;
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16 import de.intevation.artifacts.ArtifactNamespaceContext;
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17 import de.intevation.artifacts.CallContext;
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18 import de.intevation.artifacts.CallMeta;
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19
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20 import de.intevation.artifactdatabase.ProtocolUtils;
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21 import de.intevation.artifactdatabase.state.Facet;
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22 import de.intevation.artifactdatabase.state.Output;
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23 import de.intevation.artifactdatabase.state.State;
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24 import de.intevation.artifactdatabase.state.StateEngine;
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25
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26 import de.intevation.artifactdatabase.data.StateData;
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27
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28 import de.intevation.artifacts.common.utils.XMLUtils;
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29
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30 import de.intevation.flys.artifacts.states.DefaultState;
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31 import de.intevation.flys.artifacts.context.FLYSContext;
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32
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33 import de.intevation.flys.backend.SessionHolder;
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34
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35 import de.intevation.flys.artifacts.cache.CacheFactory;
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36
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37 import de.intevation.flys.model.Annotation;
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38 import de.intevation.flys.artifacts.model.AnnotationsFactory;
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39
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40 import de.intevation.flys.model.River;
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41
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42 import de.intevation.flys.artifacts.model.RiverFactory;
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43
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44 /**
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45 * Artifact to access names of Points Of Interest along a segment of a river.
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46 */
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47 public class AnnotationArtifact extends StaticFLYSArtifact {
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48
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49 /** The logger for this class. */
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50 private static Logger logger = Logger.getLogger(WINFOArtifact.class);
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51
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52 /** The name of the artifact. */
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53 public static final String ARTIFACT_NAME = "annotation";
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54
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55 /* Name of cache. */
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56 //public static final String CACHE_NAME = "annotations";
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57
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58 @Override
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59 protected void initialize(Artifact artifact, Object context,
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60 CallMeta meta) {
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61 logger.debug("AnnotationArtifact.initialize, id: "
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62 + artifact.identifier());
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63
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64 FLYSArtifact flys = (FLYSArtifact) artifact;
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65 addData("river", flys.getData("river"));
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66 /*
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67 logger.debug("Could set ranges to " +
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68 AnnotationsFactory.getAnnotationsBreadth(
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69 getRiver().getName())[0]);
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70 */
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71
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72 List<Facet> fs = new ArrayList<Facet>();
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73
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74 // TODO Add CallMeta (duplicate TODO in RiverAxisArtifact.java).
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75 DefaultState state = (DefaultState) getCurrentState(context);
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76 state.computeInit(this, hash(), context, meta, fs);
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77
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78 if (!fs.isEmpty()) {
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79 logger.debug("Facets to add in AnnotationsArtifact.initialize .");
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80 facets.put(getCurrentStateId(), fs);
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81 }
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82 else {
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83 logger.debug("No facets to add in AnnotationsArtifact.initialize .");
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84 }
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85 }
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86
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87
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88 public double[] getDistance() {
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89 /** TODO In initialize(), access maximal range of river (via
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90 * AnnotationFactory) instead of overriding getDistance,
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91 * important for diagram generation. */
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92 return new double[] {0f, 1000f};
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93 }
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94
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95
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96 /**
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97 * Create the description of this AnnotationArtifact-instance.
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98 *
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99 * @param data Some data.
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100 * @param context The CallContext.
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101 *
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102 * @return the description of this artifact.
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103 */
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104 @Override
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105 public Document describe(Document data, CallContext context) {
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106 logger.debug("Describe: the current state is: " + getCurrentStateId());
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107
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108 if (logger.isDebugEnabled()) {
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109 dumpArtifact();
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110 }
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111
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112 FLYSContext flysContext = getFlysContext(context);
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113 StateEngine stateEngine = (StateEngine) flysContext.get(
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114 FLYSContext.STATE_ENGINE_KEY);
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115
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116 Document description = XMLUtils.newDocument();
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117 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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118 description,
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119 ArtifactNamespaceContext.NAMESPACE_URI,
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120 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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121
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122 Element root = ProtocolUtils.createRootNode(creator);
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123 description.appendChild(root);
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124
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125 State current = getCurrentState(context);
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126
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127 ProtocolUtils.appendDescribeHeader(creator, root, identifier(), hash());
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128 ProtocolUtils.appendState(creator, root, current);
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129
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130 Element name = ProtocolUtils.createArtNode(
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131 creator, "name",
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132 new String[] { "value" },
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133 new String[] { getName() });
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134
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135 Element outs = ProtocolUtils.createArtNode(
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136 creator, "outputmodes", null, null);
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137 appendOutputModes(description, outs, context);
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138
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139 root.appendChild(name);
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140 root.appendChild(outs);
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141
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142 return description;
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143 }
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144
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145
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146 /**
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147 * Returns the name of the concrete artifact.
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148 *
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149 * @return the name of the concrete artifact.
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150 */
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151 public String getName() {
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152 return ARTIFACT_NAME;
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153 }
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154
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155
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156 /**
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157 * Append outputmode elements to given document.
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158 *
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159 * @param doc Document to add outputmodes to.
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160 * @param outs Element to add outputmode elements to.
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161 * @param context The given CallContext (mostly for internationalization).
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162 */
1070
b1ed0ec0236f Smaller Cosmetics.
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163 //@Override
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164 protected void appendOutputModes(
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165 Document doc,
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166 Element outs,
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167 CallContext context)
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168 {
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169 List<String> stateIds = getPreviousStateIds();
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170
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171 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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172 doc,
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173 ArtifactNamespaceContext.NAMESPACE_URI,
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174 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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175
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176 FLYSContext flysContext = getFlysContext(context);
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177 StateEngine engine = (StateEngine) flysContext.get(
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178 FLYSContext.STATE_ENGINE_KEY);
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179
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180 for (String stateId: stateIds) {
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181 logger.debug("Append output modes for state: " + stateId);
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182 DefaultState state = (DefaultState) engine.getState(stateId);
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183
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184 List<Output> list = state.getOutputs();
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185 if (list == null || list.size() == 0) {
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186 logger.debug("-> No output modes for this state.");
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187 continue;
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188 }
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189
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190 List<Facet> fs = facets.get(stateId);
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191 if (fs == null || fs.size() == 0) {
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192 logger.debug("No facets found.");
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193 continue;
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194 }
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195
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196 logger.debug("Found " + fs.size() + " facets in previous states.");
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197
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198 List<Output> generated = generateOutputs(list, fs);
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199
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200 ProtocolUtils.appendOutputModes(doc, outs, generated);
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201 }
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202
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diff changeset
203 try {
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204 DefaultState cur = (DefaultState) getCurrentState(context);
1050
eccf966fb677 State engine: Removed CallContext from state validation.
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parents: 1033
diff changeset
205 if (cur.validate(this)) {
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206 List<Output> list = cur.getOutputs();
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207 if (list != null && list.size() > 0) {
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diff changeset
208 logger.debug(
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209 "Append output modes for state: " + cur.getID());
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210
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diff changeset
211 List<Facet> fs = facets.get(cur.getID());
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212 if (fs != null && fs.size() > 0) {
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diff changeset
213 List<Output> generated = generateOutputs(list, fs);
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diff changeset
214
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diff changeset
215 logger.debug("Found " + fs.size() + " current facets.");
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diff changeset
216 if (!generated.isEmpty()) {
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diff changeset
217 ProtocolUtils.appendOutputModes(
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218 doc, outs, generated);
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diff changeset
219 }
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diff changeset
220 else{
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221 logger.debug("Cannot append output to generated document.");
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parents:
diff changeset
222 }
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parents:
diff changeset
223 }
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parents:
diff changeset
224 else {
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diff changeset
225 logger.debug("No facets found for the current state.");
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parents:
diff changeset
226 }
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parents:
diff changeset
227 }
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parents:
diff changeset
228 }
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parents:
diff changeset
229 }
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parents:
diff changeset
230 catch (IllegalArgumentException iae) {
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parents:
diff changeset
231 // state is not valid, so we do not append its outputs.
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parents:
diff changeset
232 }
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parents:
diff changeset
233 }
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parents:
diff changeset
234
1055
61c051e53f9b Moved WINFO specific stuff from FLYS into WINFO artifact.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1050
diff changeset
235 public River getRiver() {
61c051e53f9b Moved WINFO specific stuff from FLYS into WINFO artifact.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1050
diff changeset
236 StateData dRiver = getData("river");
61c051e53f9b Moved WINFO specific stuff from FLYS into WINFO artifact.
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parents: 1050
diff changeset
237
61c051e53f9b Moved WINFO specific stuff from FLYS into WINFO artifact.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1050
diff changeset
238 return dRiver != null
61c051e53f9b Moved WINFO specific stuff from FLYS into WINFO artifact.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1050
diff changeset
239 ? RiverFactory.getRiver((String) dRiver.getValue())
61c051e53f9b Moved WINFO specific stuff from FLYS into WINFO artifact.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1050
diff changeset
240 : null;
61c051e53f9b Moved WINFO specific stuff from FLYS into WINFO artifact.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1050
diff changeset
241 }
1026
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242
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parents:
diff changeset
243 /**
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parents:
diff changeset
244 * Get Annotations for Points (opposed to segments) in river in range.
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parents:
diff changeset
245 *
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parents:
diff changeset
246 * @return list of Annotations.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
247 */
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diff changeset
248 public List<Annotation> getAnnotations() {
1032
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
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diff changeset
249 String river = getRiver().getName();
1026
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diff changeset
250 logger.debug("Search annotations for river: " /*+ river*/);
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diff changeset
251 //Cache cache = CacheFactory.getCache(CACHE_NAME);
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diff changeset
252
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parents:
diff changeset
253 List<Annotation> annotations = new ArrayList<Annotation>();
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parents:
diff changeset
254
1032
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
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diff changeset
255 return getAnnotationsUncached(river);
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diff changeset
256 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
257
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
258 /**
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
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diff changeset
259 * Gets Annotations from Session/Database.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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diff changeset
260 *
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diff changeset
261 * @return List of Annotations fetched fresh from session/database.
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
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parents: 1026
diff changeset
262 * @see DistanceInfoService to access cached documents.
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diff changeset
263 */
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
264 protected List<Annotation> getAnnotationsUncached(String river) {
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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diff changeset
265 List<Annotation> annotations = new ArrayList<Annotation>();
1026
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parents:
diff changeset
266 Session session = SessionHolder.acquire();
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parents:
diff changeset
267 try {
1032
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
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diff changeset
268 annotations = AnnotationsFactory.getPointAnnotations(river);
1026
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parents:
diff changeset
269 } finally {session.close(); SessionHolder.release();}
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parents:
diff changeset
270 return annotations;
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parents:
diff changeset
271 }
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parents:
diff changeset
272 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
273 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org