Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/BlackboardDataFacet.java @ 3468:f37e7e8907cb
merged flys-artifacts/2.8.1
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 28 Sep 2012 12:14:39 +0200 |
| parents | ccc955ef8811 |
| children |
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| 3387:5ffad8bde8ad | 3468:f37e7e8907cb |
|---|---|
| 1 package de.intevation.flys.artifacts.model; | |
| 2 | |
| 3 import java.util.ArrayList; | |
| 4 import java.util.List; | |
| 5 | |
| 6 import de.intevation.artifacts.Artifact; | |
| 7 import de.intevation.artifacts.CallContext; | |
| 8 | |
| 9 import de.intevation.artifactdatabase.state.Facet; | |
| 10 import de.intevation.artifactdatabase.state.DefaultFacet; | |
| 11 | |
| 12 | |
| 13 /** | |
| 14 * Facet that writes artifact-uui and facet index on the blackboard, | |
| 15 * delivers data if asked so. | |
| 16 */ | |
| 17 public class BlackboardDataFacet extends DefaultFacet { | |
| 18 | |
| 19 public BlackboardDataFacet() {} | |
| 20 | |
| 21 /** Do not instantiate a BlackboardDataFacet, subclass it instead. */ | |
| 22 public BlackboardDataFacet(int idx, String name, String description) { | |
| 23 super(idx, name, description); | |
| 24 } | |
| 25 | |
| 26 | |
| 27 /** Do not instantiate a BlackboardDataFacet, subclass it instead. */ | |
| 28 public BlackboardDataFacet(String name, String description) { | |
| 29 super(0, name, description); | |
| 30 } | |
| 31 | |
| 32 | |
| 33 /** Define key to which to respond when asked for 'blackboard' | |
| 34 * (DataProvider)- data. */ | |
| 35 public String areaDataKey(Artifact art) { | |
| 36 return art.identifier() + ":" + getName() + ":" + getIndex(); | |
| 37 } | |
| 38 | |
| 39 | |
| 40 /** Hey, We can ArtifactUUID+:+FacetName+:+FacetIndex (i.e. getData)! */ | |
| 41 @Override | |
| 42 public List getStaticDataProviderKeys(Artifact art) { | |
| 43 List list = new ArrayList(); | |
| 44 list.add(areaDataKey(art)); | |
| 45 return list; | |
| 46 } | |
| 47 | |
| 48 | |
| 49 /** | |
| 50 * Can provide whatever getData returns. | |
| 51 * @param key will respond on uuid+index | |
| 52 * @param param ignored | |
| 53 * @param context ignored | |
| 54 * @return whatever getData delivers. | |
| 55 */ | |
| 56 @Override | |
| 57 public Object provideBlackboardData(Artifact artifact, | |
| 58 Object key, | |
| 59 Object param, | |
| 60 CallContext context | |
| 61 ) { | |
| 62 if (key.equals(areaDataKey(artifact))) { | |
| 63 return getData(artifact, context); | |
| 64 } | |
| 65 else { | |
| 66 return null; | |
| 67 } | |
| 68 } | |
| 69 | |
| 70 /** Copy deeply. */ | |
| 71 @Override | |
| 72 public Facet deepCopy() { | |
| 73 BlackboardDataFacet copy = new BlackboardDataFacet(); | |
| 74 copy.set(this); | |
| 75 return copy; | |
| 76 } | |
| 77 } | |
| 78 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |