Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/context/FLYSContext.java @ 4118:116464587b51

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Documentation.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Fri, 12 Oct 2012 15:14:29 +0200
parents 28be160b5870
children
rev   line source
106
5864c41219db Initializes a TransitionEngine storing all transitions for each artifact at the application start.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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1 package de.intevation.flys.artifacts.context;
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2
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3 import java.util.Map;
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4
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5 import org.apache.log4j.Logger;
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6
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7 import org.w3c.dom.Document;
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8
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9 import de.intevation.artifactdatabase.DefaultArtifactContext;
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10 import de.intevation.artifacts.CallContext;
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11 import de.intevation.flys.exports.OutGenerator;
106
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12
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13
5864c41219db Initializes a TransitionEngine storing all transitions for each artifact at the application start.
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14 /**
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15 * This class is used to store application wide information in a global context.
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16 *
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17 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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18 */
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19 public class FLYSContext extends DefaultArtifactContext {
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20
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21 /** The logger used in this class. */
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22 private static Logger logger = Logger.getLogger(FLYSContext.class);
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23
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24 /** The key that is used to store the StateEngine in the context. */
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25 public static final String ARTIFACT_KEY =
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26 "artifact";
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27
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28 /** The key that is used to store the TransitionEngine in the context. */
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29 public static final String TRANSITION_ENGINE_KEY =
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30 "artifact.transition.engine";
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31
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32 /** The key that is used to store the StateEngine in the context. */
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33 public static final String STATE_ENGINE_KEY =
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34 "artifact.state.engine";
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35
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36 /** The key that is used to store the Map of OutGenerator classes in the
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37 * context. */
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38 public static final String OUTGENERATORS_KEY =
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39 "flys.export.outgenerators";
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40
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41 /** The key that is used to store the map of themes in the context. */
341
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42 public static final String THEMES =
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43 "flys.themes.map";
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44
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45 /** The key that is used to store a map of theme mappings in the context. */
345
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46 public static final String THEME_MAPPING =
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47 "flys.themes.mapping.map";
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48
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49 /** The key that is used to store a map of WMS urls for each river. */
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50 public static final String RIVER_WMS =
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51 "flys.floodmap.river.wms";
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52
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53 /** The key that is used to store an instance of Scheduler in the context.*/
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54 public static final String SCHEDULER =
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55 "flys.wsplgen.scheduler";
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56
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57 /** Key to store the configured modules in the context. */
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58 public static final String MODULES = "flys.modules";
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59
106
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60
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61 /**
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62 * The default constructor.
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63 */
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64 public FLYSContext() {
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65 super();
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66 }
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67
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68
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69 /**
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70 * A constructor with a config document.
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71 */
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72 public FLYSContext(Document config) {
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73 super(config);
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74 }
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75
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76 /**
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77 * Returns the OutGenerator for a specified <i>type</i>.
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78 *
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79 * @param name The name of the output type.
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80 * @param type Defines the type of the desired OutGenerator.
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81 *
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82 * @return Instance of an OutGenerator for specified <i>type</i>.
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83 */
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84 public static OutGenerator getOutGenerator(
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85 CallContext context,
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86 String name,
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87 String type)
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88 {
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89
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90 FLYSContext flysContext = context instanceof FLYSContext
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91 ? (FLYSContext) context
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92 : (FLYSContext) context.globalContext();
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93
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94 Map<String, Class> generators = (Map<String, Class>)
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95 flysContext.get(FLYSContext.OUTGENERATORS_KEY);
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96
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97 if (generators == null) {
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98 return null;
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99 }
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100
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101 Class clazz = generators.get(name);
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102
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103 try {
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104 return clazz != null ? (OutGenerator) clazz.newInstance() : null;
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105 }
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106 catch (InstantiationException ie) {
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107 logger.error(ie, ie);
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108 }
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109 catch (IllegalAccessException iae) {
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110 logger.error(iae, iae);
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111 }
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112
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113 return null;
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114 }
106
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115 }
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116 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org