Mercurial > dive4elements > framework
comparison artifact-database/src/main/java/de/intevation/artifactdatabase/ArtifactDatabaseImpl.java @ 228:dd977fb7552e
Added an implementation of DeferredOutput for ArtifactCollections and implemented the out() operation of ArtifactCollections.
artifacts/trunk@1630 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Thu, 31 Mar 2011 08:42:53 +0000 |
| parents | 98695dc6d94d |
| children | fbd57d2eeaef |
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| 227:4bb6bfaca393 | 228:dd977fb7552e |
|---|---|
| 282 cc.postCall(); | 282 cc.postCall(); |
| 283 } | 283 } |
| 284 } | 284 } |
| 285 } // class DeferredOutputImpl | 285 } // class DeferredOutputImpl |
| 286 | 286 |
| 287 | |
| 288 /** | |
| 289 * This inner class allows the deferral of writing the output | |
| 290 * of the artifact's out() call. | |
| 291 */ | |
| 292 public class DeferredCollectionOutputImpl | |
| 293 implements DeferredOutput | |
| 294 { | |
| 295 /** | |
| 296 * The persistence wrapper around a living collection. | |
| 297 */ | |
| 298 protected ArtifactCollection collection; | |
| 299 /** | |
| 300 * The input document for the collection's out() call. | |
| 301 */ | |
| 302 protected Document format; | |
| 303 /** | |
| 304 * The meta information of the collection's out() call. | |
| 305 */ | |
| 306 protected CallMeta callMeta; | |
| 307 | |
| 308 /** | |
| 309 * Default constructor. | |
| 310 */ | |
| 311 public DeferredCollectionOutputImpl() { | |
| 312 } | |
| 313 | |
| 314 /** | |
| 315 * Constructor to create a deferred execution unit for | |
| 316 * the collection's out() call given a collection, an input document | |
| 317 * an the meta information. | |
| 318 * @param collection The collection. | |
| 319 * @param format The input document for the collection's out() call. | |
| 320 * @param callMeta The meta information of the collection's out() call. | |
| 321 */ | |
| 322 public DeferredCollectionOutputImpl( | |
| 323 ArtifactCollection collection, | |
| 324 Document format, | |
| 325 CallMeta callMeta | |
| 326 ) { | |
| 327 this.collection = collection; | |
| 328 this.format = format; | |
| 329 this.callMeta = callMeta; | |
| 330 } | |
| 331 | |
| 332 public void write(OutputStream output) throws IOException { | |
| 333 | |
| 334 CollectionCallContext cc = new CollectionCallContext( | |
| 335 ArtifactDatabaseImpl.this, | |
| 336 CallContext.TOUCH, | |
| 337 callMeta, | |
| 338 context, | |
| 339 collection); | |
| 340 | |
| 341 try { | |
| 342 collection.out(format, output, cc); | |
| 343 } | |
| 344 finally { | |
| 345 cc.postCall(); | |
| 346 } | |
| 347 } | |
| 348 } // class DeferredCollectionOutputImpl | |
| 349 | |
| 287 /** | 350 /** |
| 288 * List of name/description pairs needed for | 351 * List of name/description pairs needed for |
| 289 * {@link #artifactFactoryNamesAndDescriptions() }. | 352 * {@link #artifactFactoryNamesAndDescriptions() }. |
| 290 */ | 353 */ |
| 291 protected String [][] factoryNamesAndDescription; | 354 protected String [][] factoryNamesAndDescription; |
| 1352 return result; | 1415 return result; |
| 1353 } | 1416 } |
| 1354 | 1417 |
| 1355 public DeferredOutput outCollection(String collectionId, | 1418 public DeferredOutput outCollection(String collectionId, |
| 1356 Document format, CallMeta callMeta) | 1419 Document format, CallMeta callMeta) |
| 1357 throws ArtifactDatabaseException{ | 1420 throws ArtifactDatabaseException |
| 1358 throw new ArtifactDatabaseException("Not implemented, yet!"); | 1421 { |
| 1422 ArtifactCollectionFactory acf = getArtifactCollectionFactory(); | |
| 1423 | |
| 1424 if (acf == null) { | |
| 1425 throw new ArtifactDatabaseException(NO_SUCH_FACTORY); | |
| 1426 } | |
| 1427 | |
| 1428 UserFactory uf = getUserFactory(); | |
| 1429 if (uf == null) { | |
| 1430 throw new ArtifactDatabaseException(NO_SUCH_FACTORY); | |
| 1431 } | |
| 1432 | |
| 1433 ArtifactCollection c = backend.getCollection( | |
| 1434 collectionId, acf, uf, context); | |
| 1435 | |
| 1436 if (c == null) { | |
| 1437 logger.warn("No collection found with identifier: " + collectionId); | |
| 1438 throw new ArtifactDatabaseException(NO_SUCH_COLLECTION); | |
| 1439 } | |
| 1440 | |
| 1441 CallContext cc = new CollectionCallContext( | |
| 1442 ArtifactDatabaseImpl.this, | |
| 1443 CallContext.NOTHING, | |
| 1444 callMeta, | |
| 1445 context, | |
| 1446 c); | |
| 1447 | |
| 1448 return new DeferredCollectionOutputImpl(c, format, callMeta); | |
| 1359 } | 1449 } |
| 1360 } | 1450 } |
| 1361 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : | 1451 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |