Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/BlackboardDataFacet.java @ 8145:52504fc2cd58
Calculate all single years in given interval but only once.
author | Tom Gottfried <tom@intevation.de> |
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date | Wed, 27 Aug 2014 15:01:54 +0200 |
parents | 257d72524249 |
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rev | line source |
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.artifacts.model; |
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10 |
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11 import java.util.ArrayList; |
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12 import java.util.List; |
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13 |
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14 import org.dive4elements.artifacts.Artifact; |
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15 import org.dive4elements.artifacts.CallContext; |
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16 |
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17 import org.dive4elements.artifactdatabase.state.Facet; |
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18 import org.dive4elements.artifactdatabase.state.DefaultFacet; |
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19 |
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20 |
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21 /** |
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22 * Facet that writes artifact-uuid facet name and facet index on the blackboard, |
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23 * delivers data if asked so. |
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24 */ |
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25 public class BlackboardDataFacet extends DefaultFacet { |
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26 |
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27 public BlackboardDataFacet() {} |
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28 |
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29 /** Do not instantiate a BlackboardDataFacet, subclass it instead. */ |
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30 public BlackboardDataFacet(int idx, String name, String description) { |
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31 super(idx, name, description); |
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32 } |
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33 |
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34 |
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35 /** Do not instantiate a BlackboardDataFacet, subclass it instead. */ |
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36 public BlackboardDataFacet(String name, String description) { |
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37 super(0, name, description); |
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38 } |
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39 |
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40 |
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41 /** Define key to which to respond when asked for 'blackboard' |
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42 * (DataProvider)- data. */ |
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43 public String areaDataKey(Artifact art) { |
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44 return art.identifier() + ":" + getName() + ":" + getIndex(); |
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45 } |
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46 |
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47 |
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48 /** Hey, We can ArtifactUUID+:+FacetName+:+FacetIndex (i.e. getData)! */ |
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49 @Override |
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50 public List getStaticDataProviderKeys(Artifact art) { |
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51 List list = new ArrayList(); |
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52 list.add(areaDataKey(art)); |
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53 return list; |
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54 } |
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55 |
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56 |
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57 /** |
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58 * Can provide whatever getData returns. |
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59 * @param key will respond on uuid+facetname+index |
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60 * @param param ignored |
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61 * @param context ignored |
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62 * @return whatever getData delivers when asked for the 'right' key. |
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63 */ |
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64 @Override |
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65 public Object provideBlackboardData(Artifact artifact, |
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66 Object key, |
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67 Object param, |
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68 CallContext context |
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69 ) { |
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70 if (key.equals(areaDataKey(artifact))) { |
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71 return getData(artifact, context); |
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72 } |
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73 else { |
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74 return null; |
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75 } |
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76 } |
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77 |
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78 /** Copy deeply. */ |
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79 @Override |
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80 public Facet deepCopy() { |
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81 BlackboardDataFacet copy = new BlackboardDataFacet(); |
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82 copy.set(this); |
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83 return copy; |
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84 } |
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85 } |
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86 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |