Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/AnnotationArtifact.java @ 1053:bfc2ed20b87c

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Prepared the FloodMapState to save geometries. flys-artifacts/trunk@2519 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 22 Aug 2011 10:40:15 +0000
parents eccf966fb677
children 61c051e53f9b
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.artifacts.common.utils.XMLUtils;
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27
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28 import de.intevation.flys.artifacts.states.DefaultState;
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29 import de.intevation.flys.artifacts.context.FLYSContext;
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30
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31 import de.intevation.flys.backend.SessionHolder;
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32
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33 import de.intevation.flys.artifacts.cache.CacheFactory;
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34
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35 import de.intevation.flys.model.Annotation;
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36 import de.intevation.flys.artifacts.model.AnnotationsFactory;
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37
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38
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39 /**
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40 * Artifact to access names of Points Of Interest along a segment of a river.
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41 */
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42 public class AnnotationArtifact extends StaticFLYSArtifact {
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43
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44 /** The logger for this class. */
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45 private static Logger logger = Logger.getLogger(WINFOArtifact.class);
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46
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47 /** The name of the artifact. */
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48 public static final String ARTIFACT_NAME = "annotation";
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49
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50 /* Name of cache. */
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51 //public static final String CACHE_NAME = "annotations";
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52
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53 @Override
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54 protected void initialize(Artifact artifact, Object context, CallMeta meta) {
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55 logger.debug("Initialize internal state of AnnotationArtifact with: " + artifact.identifier());
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56
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57 FLYSArtifact flys = (FLYSArtifact) artifact;
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58 addData("river", flys.getData("river"));
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59 /*
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60 logger.debug("Could set ranges to " +
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61 AnnotationsFactory.getAnnotationsBreadth(
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62 getRiver().getName())[0]);
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63 */
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64
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65 List<Facet> fs = new ArrayList<Facet>();
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66
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67 // TODO Add CallMeta (duplicate TODO in RiverAxisArtifact.java).
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68 DefaultState state = (DefaultState) getCurrentState(context);
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69 state.computeInit(this, hash(), context, meta, fs);
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70
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71 if (!fs.isEmpty()) {
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72 logger.debug("Facets to add in AnnotationsArtifact.initialize .");
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73 facets.put(getCurrentStateId(), fs);
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74 }
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75 else {
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76 logger.debug("No facets to add in AnnotationsArtifact.initialize .");
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77 }
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78 }
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79
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80
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81 @Override
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82 public double[] getDistance() {
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83 /** TODO In initialize(), access maximal range of river (via
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84 * AnnotationFactory) instead of overriding getDistance,
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85 * important for diagram generation. */
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86 return new double[] {0f, 1000f};
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87 }
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88
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89
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90 /**
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91 * Create the description of this AnnotationArtifact-instance.
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92 *
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93 * @param data Some data.
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94 * @param context The CallContext.
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95 *
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96 * @return the description of this artifact.
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97 */
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98 public Document describe(Document data, CallContext context) {
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99 logger.debug("Describe: the current state is: " + getCurrentStateId());
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100
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101 if (logger.isDebugEnabled()) {
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102 dumpArtifact();
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103 }
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104
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105 FLYSContext flysContext = getFlysContext(context);
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106 StateEngine stateEngine = (StateEngine) flysContext.get(
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107 FLYSContext.STATE_ENGINE_KEY);
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108
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109 Document description = XMLUtils.newDocument();
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110 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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111 description,
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112 ArtifactNamespaceContext.NAMESPACE_URI,
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113 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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114
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115 Element root = ProtocolUtils.createRootNode(creator);
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116 description.appendChild(root);
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117
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118 State current = getCurrentState(context);
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119
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120 ProtocolUtils.appendDescribeHeader(creator, root, identifier(), hash());
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121 ProtocolUtils.appendState(creator, root, current);
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122
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123 Element name = ProtocolUtils.createArtNode(
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124 creator, "name",
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125 new String[] { "value" },
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126 new String[] { getName() });
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127
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128 Element outs = ProtocolUtils.createArtNode(
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129 creator, "outputmodes", null, null);
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130 appendOutputModes(description, outs, context);
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131
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132 root.appendChild(name);
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133 root.appendChild(outs);
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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
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139 /**
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140 * Returns the name of the concrete artifact.
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141 *
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142 * @return the name of the concrete artifact.
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143 */
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144 public String getName() {
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145 return ARTIFACT_NAME;
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146 }
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147
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148
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149 /**
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150 * Append outputmode elements to given document.
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151 *
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152 * @param doc Document to add outputmodes to.
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153 * @param outs Element to add outputmode elements to.
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154 * @param context The given CallContext (mostly for internationalization).
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155 */
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156 protected void appendOutputModes(
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157 Document doc,
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158 Element outs,
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159 CallContext context)
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160 {
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161 List<String> stateIds = getPreviousStateIds();
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162
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163 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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164 doc,
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165 ArtifactNamespaceContext.NAMESPACE_URI,
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166 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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167
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168 FLYSContext flysContext = getFlysContext(context);
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169 StateEngine engine = (StateEngine) flysContext.get(
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170 FLYSContext.STATE_ENGINE_KEY);
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171
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172 for (String stateId: stateIds) {
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173 logger.debug("Append output modes for state: " + stateId);
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174 DefaultState state = (DefaultState) engine.getState(stateId);
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175
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176 List<Output> list = state.getOutputs();
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177 if (list == null || list.size() == 0) {
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178 logger.debug("-> No output modes for this state.");
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179 continue;
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180 }
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181
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182 List<Facet> fs = facets.get(stateId);
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183 if (fs == null || fs.size() == 0) {
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184 logger.debug("No facets found.");
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185 continue;
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186 }
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187
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188 logger.debug("Found " + fs.size() + " facets in previous states.");
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189
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190 List<Output> generated = generateOutputs(list, fs);
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191
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192 ProtocolUtils.appendOutputModes(doc, outs, generated);
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193 }
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194
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195 try {
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196 DefaultState cur = (DefaultState) getCurrentState(context);
1050
eccf966fb677 State engine: Removed CallContext from state validation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1033
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197 if (cur.validate(this)) {
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198 List<Output> list = cur.getOutputs();
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199 if (list != null && list.size() > 0) {
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200 logger.debug(
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201 "Append output modes for state: " + cur.getID());
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202
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203 List<Facet> fs = facets.get(cur.getID());
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204 if (fs != null && fs.size() > 0) {
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205 List<Output> generated = generateOutputs(list, fs);
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206
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207 logger.debug("Found " + fs.size() + " current facets.");
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208 if (!generated.isEmpty()) {
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209 ProtocolUtils.appendOutputModes(
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210 doc, outs, generated);
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211 }
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212 else{
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213 logger.debug("Cannot append output to generated document.");
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214 }
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parents:
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215 }
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216 else {
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217 logger.debug("No facets found for the current state.");
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parents:
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218 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
219 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
220 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
221 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
222 catch (IllegalArgumentException iae) {
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parents:
diff changeset
223 // state is not valid, so we do not append its outputs.
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parents:
diff changeset
224 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
225 }
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parents:
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226
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parents:
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227
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parents:
diff changeset
228 /**
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parents:
diff changeset
229 * Get Annotations for Points (opposed to segments) in river in range.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
230 *
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parents:
diff changeset
231 * @return list of Annotations.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
232 */
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diff changeset
233 public List<Annotation> getAnnotations() {
1032
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
234 String river = getRiver().getName();
1026
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diff changeset
235 logger.debug("Search annotations for river: " /*+ river*/);
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diff changeset
236 //Cache cache = CacheFactory.getCache(CACHE_NAME);
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parents:
diff changeset
237
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parents:
diff changeset
238 List<Annotation> annotations = new ArrayList<Annotation>();
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
239
1032
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
240 return getAnnotationsUncached(river);
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
241 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
242
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
243 /**
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
244 * Gets Annotations from Session/Database.
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
245 *
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
246 * @return List of Annotations fetched fresh from session/database.
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
247 * @see DistanceInfoService to access cached documents.
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
248 */
abd2ab6dff4f Let AnnotationArtifact fetch "more correct" data.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1026
diff changeset
249 protected List<Annotation> getAnnotationsUncached(String river) {
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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diff changeset
250 List<Annotation> annotations = new ArrayList<Annotation>();
1026
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parents:
diff changeset
251 Session session = SessionHolder.acquire();
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parents:
diff changeset
252 try {
1032
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diff changeset
253 annotations = AnnotationsFactory.getPointAnnotations(river);
1026
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diff changeset
254 } finally {session.close(); SessionHolder.release();}
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parents:
diff changeset
255 return annotations;
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parents:
diff changeset
256 }
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parents:
diff changeset
257 }
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parents:
diff changeset
258 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org