Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/datacage/templating/Builder.java @ 5305:e60f65540cc2
Added filter to elements in datacage templating. (most work done by Sascha T.).
| author | Raimund Renkert <rrenkert@intevation.de> |
|---|---|
| date | Thu, 14 Mar 2013 17:09:44 +0100 |
| parents | 9c388de4b4d5 |
| children | d0f5bc8064f1 |
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| 5304:ffa5eaad3a7b | 5305:e60f65540cc2 |
|---|---|
| 234 connectionsStack.pop(); | 234 connectionsStack.pop(); |
| 235 } | 235 } |
| 236 } | 236 } |
| 237 } | 237 } |
| 238 | 238 |
| 239 | |
| 240 protected ResultData createFilteredResultData(ResultData rd, String filter) { | |
| 241 if (filter == null) return rd; | |
| 242 | |
| 243 List<Object []> rows = rd.getRows(); | |
| 244 String [] columns = rd.getColumnLabels(); | |
| 245 | |
| 246 List<Object []> filtered = new ArrayList<Object[]>(rows.size()); | |
| 247 | |
| 248 for (Object [] row: rows) { | |
| 249 frames.enter(); | |
| 250 try { | |
| 251 frames.put(columns, row); | |
| 252 boolean traverse = filter == null; | |
| 253 | |
| 254 if (!traverse) { | |
| 255 Boolean b = evaluateXPathToBoolean(filter); | |
| 256 traverse = b != null && b; | |
| 257 } | |
| 258 if (traverse) { | |
| 259 filtered.add(row); | |
| 260 } | |
| 261 } | |
| 262 finally { | |
| 263 frames.leave(); | |
| 264 } | |
| 265 } | |
| 266 return new ResultData(rd.getColumnLabels(), filtered); | |
| 267 } | |
| 268 | |
| 239 /** | 269 /** |
| 240 * Kind of foreach over results of a statement within a context. | 270 * Kind of foreach over results of a statement within a context. |
| 241 */ | 271 */ |
| 242 protected void elements(Node parent, Element current) | 272 protected void elements(Node parent, Element current) |
| 243 throws SQLException | 273 throws SQLException |
| 247 if (connectionsStack.isEmpty()) { | 277 if (connectionsStack.isEmpty()) { |
| 248 log.warn("dc:elements without having results"); | 278 log.warn("dc:elements without having results"); |
| 249 return; | 279 return; |
| 250 } | 280 } |
| 251 | 281 |
| 282 String filter = current.getAttribute("filter"); | |
| 283 | |
| 284 if ((filter = filter.trim()).length() == 0) { | |
| 285 filter = null; | |
| 286 } | |
| 287 | |
| 252 NodeList subs = current.getChildNodes(); | 288 NodeList subs = current.getChildNodes(); |
| 253 int S = subs.getLength(); | 289 int S = subs.getLength(); |
| 254 | 290 |
| 255 if (S == 0) { | 291 if (S == 0) { |
| 256 log.debug("dc:elements has no children"); | 292 log.debug("dc:elements has no children"); |
| 257 return; | 293 return; |
| 258 } | 294 } |
| 259 | 295 |
| 296 Pair<Builder.NamedConnection, ResultData> pair = | |
| 297 connectionsStack.peek(); | |
| 298 | |
| 260 ResultData rd = connectionsStack.peek().getB(); | 299 ResultData rd = connectionsStack.peek().getB(); |
| 261 | 300 ResultData orig = rd; |
| 262 String [] columns = rd.getColumnLabels(); | 301 |
| 263 | 302 if (filter != null) { |
| 264 //if (log.isDebugEnabled()) { | 303 ResultData rdCopy = createFilteredResultData(rd, filter); |
| 265 // log.debug("pushing vars: " | 304 pair.setB(rdCopy); |
| 266 // + java.util.Arrays.toString(columns)); | 305 rd = rdCopy; |
| 267 //} | 306 } |
| 268 | 307 try { |
| 269 for (Object [] row: rd.getRows()) { | 308 String [] columns = rd.getColumnLabels(); |
| 270 frames.enter(); | 309 |
| 271 try { | 310 //if (log.isDebugEnabled()) { |
| 272 frames.put(columns, row); | 311 // log.debug("pushing vars: " |
| 273 //if (log.isDebugEnabled()) { | 312 // + java.util.Arrays.toString(columns)); |
| 274 // log.debug("current vars: " + frames.dump()); | 313 //} |
| 275 //} | 314 |
| 276 for (int i = 0; i < S; ++i) { | 315 for (Object [] row: rd.getRows()) { |
| 277 build(parent, subs.item(i)); | 316 frames.enter(); |
| 278 } | 317 try { |
| 279 } | 318 frames.put(columns, row); |
| 280 finally { | 319 //if (log.isDebugEnabled()) { |
| 281 frames.leave(); | 320 // log.debug("current vars: " + frames.dump()); |
| 282 } | 321 //} |
| 322 for (int i = 0; i < S; ++i) { | |
| 323 build(parent, subs.item(i)); | |
| 324 } | |
| 325 } | |
| 326 finally { | |
| 327 frames.leave(); | |
| 328 } | |
| 329 } | |
| 330 } | |
| 331 finally { | |
| 332 if (filter != null) { | |
| 333 pair.setB(orig); | |
| 334 } | |
| 283 } | 335 } |
| 284 } | 336 } |
| 285 | 337 |
| 286 /** | 338 /** |
| 287 * Create element. | 339 * Create element. |