Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/AnnotationArtifact.java @ 2144:a4bdf7d8527e
Use FastAnnotations for LocationProvider.
flys-artifacts/trunk@3723 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Thu, 19 Jan 2012 13:43:58 +0000 |
| parents | 2d0b22602fc2 |
| children | 5642a83420f2 |
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| 2143:c5d24e0587ce | 2144:a4bdf7d8527e |
|---|---|
| 5 | 5 |
| 6 import org.w3c.dom.Document; | 6 import org.w3c.dom.Document; |
| 7 import org.w3c.dom.Element; | 7 import org.w3c.dom.Element; |
| 8 | 8 |
| 9 import org.apache.log4j.Logger; | 9 import org.apache.log4j.Logger; |
| 10 | |
| 11 import net.sf.ehcache.Cache; | |
| 12 | 10 |
| 13 import de.intevation.artifacts.Artifact; | 11 import de.intevation.artifacts.Artifact; |
| 14 import de.intevation.artifacts.ArtifactNamespaceContext; | 12 import de.intevation.artifacts.ArtifactNamespaceContext; |
| 15 import de.intevation.artifacts.CallContext; | 13 import de.intevation.artifacts.CallContext; |
| 16 import de.intevation.artifacts.CallMeta; | 14 import de.intevation.artifacts.CallMeta; |
| 22 import de.intevation.artifactdatabase.state.StateEngine; | 20 import de.intevation.artifactdatabase.state.StateEngine; |
| 23 | 21 |
| 24 import de.intevation.artifacts.common.utils.XMLUtils; | 22 import de.intevation.artifacts.common.utils.XMLUtils; |
| 25 | 23 |
| 26 import de.intevation.flys.artifacts.states.DefaultState; | 24 import de.intevation.flys.artifacts.states.DefaultState; |
| 27 import de.intevation.flys.artifacts.cache.CacheFactory; | |
| 28 import de.intevation.flys.artifacts.context.FLYSContext; | 25 import de.intevation.flys.artifacts.context.FLYSContext; |
| 29 import de.intevation.flys.artifacts.model.AnnotationsFactory; | |
| 30 | |
| 31 import de.intevation.flys.model.Annotation; | |
| 32 | 26 |
| 33 import de.intevation.flys.utils.FLYSUtils; | 27 import de.intevation.flys.utils.FLYSUtils; |
| 34 | 28 |
| 35 /** | 29 /** |
| 36 * Artifact to access names of Points Of Interest along a segment of a river. | 30 * Artifact to access names of Points Of Interest along a segment of a river. |
| 40 /** The logger for this class. */ | 34 /** The logger for this class. */ |
| 41 private static Logger logger = Logger.getLogger(AnnotationArtifact.class); | 35 private static Logger logger = Logger.getLogger(AnnotationArtifact.class); |
| 42 | 36 |
| 43 /** The name of the artifact. */ | 37 /** The name of the artifact. */ |
| 44 public static final String ARTIFACT_NAME = "annotation"; | 38 public static final String ARTIFACT_NAME = "annotation"; |
| 45 | |
| 46 /** Name of cache. */ | |
| 47 public static final String CACHE_NAME = "annotations"; | |
| 48 | 39 |
| 49 /** Get river, setup Facets. */ | 40 /** Get river, setup Facets. */ |
| 50 @Override | 41 @Override |
| 51 protected void initialize(Artifact artifact, Object context, | 42 protected void initialize(Artifact artifact, Object context, |
| 52 CallMeta meta) { | 43 CallMeta meta) { |
| 216 } | 207 } |
| 217 catch (IllegalArgumentException iae) { | 208 catch (IllegalArgumentException iae) { |
| 218 // state is not valid, so we do not append its outputs. | 209 // state is not valid, so we do not append its outputs. |
| 219 } | 210 } |
| 220 } | 211 } |
| 221 | |
| 222 | |
| 223 /** | |
| 224 * Get Annotations for Points (opposed to segments) in river in range. | |
| 225 * | |
| 226 * @return list of Annotations. | |
| 227 */ | |
| 228 public List<Annotation> getAnnotations() { | |
| 229 String river = FLYSUtils.getRiver(this).getName(); | |
| 230 logger.debug("Search annotations for river: " + river); | |
| 231 | |
| 232 Cache cache = CacheFactory.getCache(CACHE_NAME); | |
| 233 String key = river; | |
| 234 Object old = null; | |
| 235 | |
| 236 if (cache != null) { | |
| 237 logger.debug("We are using a cache for annotations."); | |
| 238 | |
| 239 net.sf.ehcache.Element element = cache.get(key); | |
| 240 if (element != null) { | |
| 241 logger.info("Fetched annotations from cache."); | |
| 242 old = element.getValue(); | |
| 243 } | |
| 244 } | |
| 245 | |
| 246 if (old == null) { | |
| 247 old = getAnnotationsUncached(river); | |
| 248 } | |
| 249 | |
| 250 if (cache != null && old != null) { | |
| 251 cache.put(new net.sf.ehcache.Element(key, old)); | |
| 252 } | |
| 253 | |
| 254 return old != null | |
| 255 ? (List<Annotation>) old | |
| 256 : new ArrayList<Annotation>(); | |
| 257 } | |
| 258 | |
| 259 | |
| 260 /** | |
| 261 * Gets Annotations from Session/Database. | |
| 262 * | |
| 263 * @return List of Annotations fetched fresh from session/database. | |
| 264 * @see DistanceInfoService to access cached documents. | |
| 265 */ | |
| 266 protected List<Annotation> getAnnotationsUncached(String river) { | |
| 267 logger.info("Fetch annotations from database."); | |
| 268 | |
| 269 List<Annotation> annotations = new ArrayList<Annotation>(); | |
| 270 annotations = AnnotationsFactory.getPointAnnotations(river); | |
| 271 | |
| 272 return annotations; | |
| 273 } | |
| 274 } | 212 } |
| 275 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : | 213 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |