svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / main / java / org / gvsig / fmap / dal / feature / impl / DefaultForeingKey.java @ 45772
History | View | Annotate | Download (18.3 KB)
1 |
package org.gvsig.fmap.dal.feature.impl; |
---|---|
2 |
|
3 |
import org.gvsig.fmap.dal.feature.EditableForeingKey; |
4 |
import org.gvsig.fmap.dal.feature.ForeingKey; |
5 |
import java.util.List; |
6 |
import java.util.Objects; |
7 |
import org.apache.commons.lang3.StringUtils; |
8 |
import org.gvsig.expressionevaluator.Expression; |
9 |
import org.gvsig.expressionevaluator.ExpressionBuilder; |
10 |
import org.gvsig.expressionevaluator.ExpressionUtils; |
11 |
import org.gvsig.expressionevaluator.MutableSymbolTable; |
12 |
import org.gvsig.expressionevaluator.SymbolTable; |
13 |
import org.gvsig.fmap.dal.DALLocator; |
14 |
import org.gvsig.fmap.dal.DataManager; |
15 |
import org.gvsig.fmap.dal.StoresRepository; |
16 |
import org.gvsig.fmap.dal.exception.DataException; |
17 |
import org.gvsig.fmap.dal.expressionevaluator.FeatureSymbolTable; |
18 |
import org.gvsig.fmap.dal.feature.Feature; |
19 |
import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
20 |
import org.gvsig.fmap.dal.feature.FeatureQuery; |
21 |
import org.gvsig.fmap.dal.feature.FeatureSet; |
22 |
import org.gvsig.fmap.dal.feature.FeatureStore; |
23 |
import org.gvsig.fmap.dal.feature.FeatureType; |
24 |
import static org.gvsig.fmap.dal.feature.ForeingKey.MAX_AVAILABLE_VALUES; |
25 |
import org.gvsig.tools.ToolsLocator; |
26 |
import org.gvsig.tools.dispose.DisposeUtils; |
27 |
import org.gvsig.tools.dynobject.DynObject; |
28 |
import org.gvsig.tools.dynobject.DynObjectValueItem; |
29 |
import org.gvsig.tools.dynobject.DynStruct; |
30 |
import org.gvsig.tools.persistence.PersistenceManager; |
31 |
import org.gvsig.tools.persistence.Persistent; |
32 |
import org.gvsig.tools.persistence.PersistentState; |
33 |
import org.gvsig.tools.persistence.exception.PersistenceException; |
34 |
import org.slf4j.Logger; |
35 |
import org.slf4j.LoggerFactory; |
36 |
|
37 |
/**
|
38 |
*
|
39 |
* @author jjdelcerro
|
40 |
*/
|
41 |
@SuppressWarnings("UseSpecificCatch") |
42 |
public class DefaultForeingKey implements Persistent, ForeingKey, EditableForeingKey, org.gvsig.tools.lang.Cloneable { |
43 |
|
44 |
private static final Logger LOGGER = LoggerFactory.getLogger(DefaultForeingKey.class); |
45 |
|
46 |
private class DefaultContextForeingKey implements ContextForeingKey { |
47 |
|
48 |
private FeatureStore featureStore = null; |
49 |
private StoresRepository storesRepository = null; |
50 |
private Expression labelExpression; |
51 |
private SymbolTable symbolTable;
|
52 |
private FeatureSymbolTable featureSymbolTable;
|
53 |
private DynObject contextValues;
|
54 |
private int refs; |
55 |
|
56 |
public DefaultContextForeingKey(StoresRepository storesRepository) {
|
57 |
this.refs = 1; |
58 |
this.storesRepository = storesRepository;
|
59 |
} |
60 |
|
61 |
public void addRef() { |
62 |
this.refs++;
|
63 |
} |
64 |
|
65 |
public void relese() { |
66 |
this.refs--;
|
67 |
} |
68 |
|
69 |
@Override
|
70 |
public void dispose() { |
71 |
DisposeUtils.disposeQuietly(featureStore); |
72 |
DisposeUtils.disposeQuietly(contextValues); |
73 |
this.featureStore = null; |
74 |
this.storesRepository = null; |
75 |
this.labelExpression = null; |
76 |
this.symbolTable = null; |
77 |
this.featureSymbolTable = null; |
78 |
} |
79 |
|
80 |
@Override
|
81 |
public StoresRepository getStoresRepository() {
|
82 |
if (this.storesRepository == null) { |
83 |
this.storesRepository = DALLocator.getDataManager().getStoresRepository();
|
84 |
} |
85 |
return this.storesRepository; |
86 |
} |
87 |
|
88 |
@Override
|
89 |
public FeatureStore getFeatureStore() {
|
90 |
if (this.featureStore == null) { |
91 |
StoresRepository repository = this.getStoresRepository();
|
92 |
this.featureStore = (FeatureStore) repository.getStore(tableName);
|
93 |
if (this.featureStore == null) { |
94 |
LOGGER.warn("Can't locate store '" + tableName + "' to get available values."); |
95 |
return null; |
96 |
} |
97 |
} |
98 |
return this.featureStore; |
99 |
} |
100 |
|
101 |
@Override
|
102 |
public Expression getLabelExpression() { |
103 |
if (this.labelExpression == null) { |
104 |
if (StringUtils.isBlank(labelFormula)) {
|
105 |
return null; |
106 |
} |
107 |
this.labelExpression = ExpressionUtils.createExpression(labelFormula);
|
108 |
} |
109 |
return this.labelExpression; |
110 |
} |
111 |
|
112 |
@Override
|
113 |
public FeatureSymbolTable getFeatureSymbolTable() {
|
114 |
if (this.featureSymbolTable == null) { |
115 |
DataManager dataManager = DALLocator.getDataManager(); |
116 |
this.featureSymbolTable = dataManager.createFeatureSymbolTable();
|
117 |
this.symbolTable = this.featureSymbolTable.createParent(); |
118 |
} |
119 |
return this.featureSymbolTable; |
120 |
} |
121 |
|
122 |
@Override
|
123 |
public SymbolTable getSymbolTable() {
|
124 |
if (this.symbolTable == null) { |
125 |
DataManager dataManager = DALLocator.getDataManager(); |
126 |
this.featureSymbolTable = dataManager.createFeatureSymbolTable();
|
127 |
this.symbolTable = this.featureSymbolTable.createParent(); |
128 |
} |
129 |
return this.symbolTable; |
130 |
} |
131 |
|
132 |
@Override
|
133 |
public DynObject getContextValues() {
|
134 |
return this.contextValues; |
135 |
} |
136 |
|
137 |
@Override
|
138 |
public void setContextValues(DynObject values) { |
139 |
this.contextValues = values;
|
140 |
} |
141 |
} |
142 |
|
143 |
private boolean foreingKey; |
144 |
private boolean closedList; |
145 |
private String labelFormula; |
146 |
private String tableName; |
147 |
private String codeName; |
148 |
private DynObjectValueItem[] availableValues; |
149 |
private boolean ensureReferentialIntegrity; |
150 |
private StoresRepository storesRepository = null; |
151 |
private FeatureAttributeDescriptor descriptor;
|
152 |
|
153 |
public DefaultForeingKey() {
|
154 |
this.foreingKey = false; |
155 |
this.closedList = false; |
156 |
this.tableName = null; |
157 |
this.codeName = null; |
158 |
this.labelFormula = null; |
159 |
this.ensureReferentialIntegrity = false; |
160 |
} |
161 |
|
162 |
public void setDescriptor(FeatureAttributeDescriptor descriptor) { |
163 |
this.descriptor = descriptor;
|
164 |
FeatureStore store = descriptor.getStore(); |
165 |
if (store == null) { |
166 |
this.storesRepository = DALLocator.getDataManager().getStoresRepository();
|
167 |
|
168 |
} else {
|
169 |
this.storesRepository = store.getStoresRepository();
|
170 |
} |
171 |
} |
172 |
|
173 |
public void unbind() { |
174 |
this.descriptor = null; |
175 |
this.availableValues = null; |
176 |
} |
177 |
|
178 |
@Override
|
179 |
public boolean isClosedList() { |
180 |
return this.closedList; |
181 |
} |
182 |
|
183 |
@Override
|
184 |
public void setClosedList(boolean selectable) { |
185 |
this.closedList = selectable;
|
186 |
} |
187 |
|
188 |
@Override
|
189 |
public boolean isForeingKey() { |
190 |
return this.foreingKey; |
191 |
} |
192 |
|
193 |
@Override
|
194 |
public void setForeingKey(boolean foreingKey) { |
195 |
this.foreingKey = foreingKey;
|
196 |
} |
197 |
|
198 |
@Override
|
199 |
public String getLabelFormula() { |
200 |
return this.labelFormula; |
201 |
} |
202 |
|
203 |
@Override
|
204 |
public void setLabelFormula(String labelFormula) { |
205 |
this.labelFormula = labelFormula;
|
206 |
} |
207 |
|
208 |
@Override
|
209 |
public String getCodeName() { |
210 |
return this.codeName; |
211 |
} |
212 |
|
213 |
@Override
|
214 |
public void setCodeName(String codeName) { |
215 |
this.codeName = codeName;
|
216 |
} |
217 |
|
218 |
@Override
|
219 |
public String getTableName() { |
220 |
return this.tableName; |
221 |
} |
222 |
|
223 |
@Override
|
224 |
public void setTableName(String tableName) { |
225 |
this.tableName = tableName;
|
226 |
} |
227 |
|
228 |
@Override
|
229 |
public boolean isEmpty() { |
230 |
if (!this.foreingKey |
231 |
&& !this.closedList
|
232 |
&& StringUtils.isBlank(this.tableName)
|
233 |
&& StringUtils.isBlank(this.codeName)
|
234 |
&& StringUtils.isBlank(this.labelFormula)) {
|
235 |
return true; |
236 |
} |
237 |
return false; |
238 |
} |
239 |
|
240 |
@Override
|
241 |
public void clean() { |
242 |
this.foreingKey = false; |
243 |
this.closedList = false; |
244 |
this.tableName = null; |
245 |
this.codeName = null; |
246 |
this.labelFormula = null; |
247 |
this.ensureReferentialIntegrity = false; |
248 |
} |
249 |
|
250 |
private void disposeIfLocalContext(ContextForeingKey context) { |
251 |
DefaultContextForeingKey c = (DefaultContextForeingKey) context; |
252 |
c.relese(); |
253 |
if (c.refs == 0) { |
254 |
context.dispose(); |
255 |
} |
256 |
} |
257 |
|
258 |
private ContextForeingKey createLocalContextIfNull(ContextForeingKey context) {
|
259 |
if (context == null) { |
260 |
return createContext();
|
261 |
} |
262 |
DefaultContextForeingKey c = (DefaultContextForeingKey) context; |
263 |
c.addRef(); |
264 |
return c;
|
265 |
} |
266 |
|
267 |
@Override
|
268 |
public ContextForeingKey createContext() {
|
269 |
return new DefaultContextForeingKey(this.storesRepository); |
270 |
} |
271 |
|
272 |
@Override
|
273 |
public StoresRepository getStoresRepository(ContextForeingKey context) {
|
274 |
context = createLocalContextIfNull(context); |
275 |
try {
|
276 |
return context.getStoresRepository();
|
277 |
} finally {
|
278 |
disposeIfLocalContext(context); |
279 |
} |
280 |
} |
281 |
|
282 |
@Override
|
283 |
public FeatureStore getFeatureStore(ContextForeingKey context) {
|
284 |
context = createLocalContextIfNull(context); |
285 |
try {
|
286 |
return context.getFeatureStore();
|
287 |
} finally {
|
288 |
disposeIfLocalContext(context); |
289 |
} |
290 |
} |
291 |
|
292 |
@Override
|
293 |
public FeatureType getFeatureType(ContextForeingKey context) {
|
294 |
context = createLocalContextIfNull(context); |
295 |
FeatureStore store = context.getFeatureStore(); |
296 |
if (store == null) { |
297 |
return null; |
298 |
} |
299 |
try {
|
300 |
return store.getDefaultFeatureType();
|
301 |
} catch (DataException ex) {
|
302 |
return null; |
303 |
} finally {
|
304 |
disposeIfLocalContext(context); |
305 |
} |
306 |
} |
307 |
|
308 |
@Override
|
309 |
public List<Feature> getFeatures(ContextForeingKey context) { |
310 |
context = createLocalContextIfNull(context); |
311 |
FeatureStore store = context.getFeatureStore(); |
312 |
if (store == null) { |
313 |
return null; |
314 |
} |
315 |
try {
|
316 |
return store.getFeatures();
|
317 |
} finally {
|
318 |
disposeIfLocalContext(context); |
319 |
} |
320 |
} |
321 |
|
322 |
@Override
|
323 |
public Object getCode(ContextForeingKey context, Feature feature) { |
324 |
// context = createLocalContextIfNull(context);
|
325 |
try {
|
326 |
return feature.get(codeName);
|
327 |
} finally {
|
328 |
// disposeIfLocalContext(context);
|
329 |
} |
330 |
} |
331 |
|
332 |
@Override
|
333 |
public FeatureQuery getQuery(ContextForeingKey context, Object codeValue) { |
334 |
context = createLocalContextIfNull(context); |
335 |
try {
|
336 |
ExpressionBuilder builder = ExpressionUtils.createExpressionBuilder(); |
337 |
FeatureStore store = context.getFeatureStore(); |
338 |
FeatureQuery query = store.createFeatureQuery(); |
339 |
query.setFilter(builder.eq( |
340 |
builder.variable(codeName), |
341 |
builder.constant(codeValue) |
342 |
).toString() |
343 |
); |
344 |
query.retrievesAllAttributes(); |
345 |
return query;
|
346 |
} finally {
|
347 |
disposeIfLocalContext(context); |
348 |
} |
349 |
} |
350 |
|
351 |
@Override
|
352 |
public Feature getFeature(ContextForeingKey context, Object codeValue) { |
353 |
context = createLocalContextIfNull(context); |
354 |
try {
|
355 |
FeatureStore store = context.getFeatureStore(); |
356 |
if (store == null) { |
357 |
return null; |
358 |
} |
359 |
FeatureQuery query = this.getQuery(context, codeValue);
|
360 |
Feature feature = store.findFirst(query); |
361 |
return feature;
|
362 |
} catch (DataException ex) {
|
363 |
return null; |
364 |
} finally {
|
365 |
disposeIfLocalContext(context); |
366 |
} |
367 |
} |
368 |
|
369 |
@Override
|
370 |
public String getLabel(ContextForeingKey context, Object codeValue) { |
371 |
context = createLocalContextIfNull(context); |
372 |
try {
|
373 |
Feature feature = this.getFeature(context, codeValue);
|
374 |
if (feature == null) { |
375 |
return null; |
376 |
} |
377 |
return getLabel(context, feature);
|
378 |
} finally {
|
379 |
disposeIfLocalContext(context); |
380 |
} |
381 |
} |
382 |
|
383 |
@Override
|
384 |
public Expression getLabelExpression(ContextForeingKey context) { |
385 |
context = createLocalContextIfNull(context); |
386 |
try {
|
387 |
return context.getLabelExpression();
|
388 |
} finally {
|
389 |
disposeIfLocalContext(context); |
390 |
} |
391 |
} |
392 |
|
393 |
@Override
|
394 |
public String getLabel(ContextForeingKey context, Feature feature) { |
395 |
if (feature == null) { |
396 |
return null; |
397 |
} |
398 |
context = createLocalContextIfNull(context); |
399 |
try {
|
400 |
Expression labelExpression = context.getLabelExpression();
|
401 |
if (labelExpression == null) { |
402 |
return feature.toString();
|
403 |
} |
404 |
context.getFeatureSymbolTable().setFeature(feature); |
405 |
Object x = labelExpression.execute(context.getSymbolTable());
|
406 |
if (x == null) { |
407 |
return null; |
408 |
} |
409 |
return x.toString();
|
410 |
} finally {
|
411 |
disposeIfLocalContext(context); |
412 |
} |
413 |
} |
414 |
|
415 |
@Override
|
416 |
public DynObjectValueItem[] getAvailableValues(ContextForeingKey context) { |
417 |
if (!this.isClosedList()) { |
418 |
return null; |
419 |
} |
420 |
if (this.availableValues == null) { |
421 |
|
422 |
FeatureStore foreingStore = null;
|
423 |
FeatureSet.DisposableFeatureSetIterable set = null;
|
424 |
|
425 |
try {
|
426 |
|
427 |
StoresRepository theStoresRepository = this.getStoresRepository(context);
|
428 |
|
429 |
foreingStore = (FeatureStore) theStoresRepository.getStore( |
430 |
this.getTableName()
|
431 |
); |
432 |
Expression labelExpression = this.getLabelExpression(null); |
433 |
String theCodeName = this.getCodeName(); |
434 |
FeatureSymbolTable featureSymbolTable = DALLocator.getDataManager().createFeatureSymbolTable(); |
435 |
MutableSymbolTable symbolTable = featureSymbolTable.createParent(); |
436 |
|
437 |
int count = (int) foreingStore.getFeatureCount(); |
438 |
DynObjectValueItem[] values = new DynObjectValueItem[Math.min(count, MAX_AVAILABLE_VALUES)]; |
439 |
int n = 0; |
440 |
for (Feature feature : set = foreingStore.getFeatureSet().iterable()) {
|
441 |
Object code = feature.get(theCodeName);
|
442 |
Object value;
|
443 |
if (labelExpression == null) { |
444 |
value = code; |
445 |
} else {
|
446 |
featureSymbolTable.setFeature(feature); |
447 |
value = labelExpression.execute(symbolTable); |
448 |
} |
449 |
values[n++] = new DynObjectValueItem(code, Objects.toString(value, Objects.toString(code, "##ERROR##"))); |
450 |
if (n >= MAX_AVAILABLE_VALUES) {
|
451 |
break;
|
452 |
} |
453 |
} |
454 |
this.availableValues = values;
|
455 |
|
456 |
} catch (Exception ex) { |
457 |
LOGGER.warn("Can't get available values for field '" + this.getStoreName() + "." + this.getCodeName() + "' from table '" + this.getTableName() + "'.", ex); |
458 |
} finally {
|
459 |
DisposeUtils.disposeQuietly(set); |
460 |
DisposeUtils.disposeQuietly(foreingStore); |
461 |
} |
462 |
} |
463 |
return this.availableValues; |
464 |
} |
465 |
|
466 |
private String getStoreName() { |
467 |
if (this.descriptor==null) { |
468 |
return "Unknown"; |
469 |
} |
470 |
return this.descriptor.getStore().getName(); |
471 |
} |
472 |
|
473 |
@Override
|
474 |
public String getLabelForValue(Object value) { |
475 |
DynObjectValueItem[] values = this.getAvailableValues(null); |
476 |
if (values != null) { |
477 |
for (DynObjectValueItem value1 : values) {
|
478 |
if (Objects.equals(value, value1.getValue())) {
|
479 |
return value1.getLabel();
|
480 |
} |
481 |
} |
482 |
} |
483 |
return Objects.toString(value, "##ERROR##"); |
484 |
} |
485 |
|
486 |
@Override
|
487 |
public void loadFromState(PersistentState state) |
488 |
throws PersistenceException {
|
489 |
foreingKey = state.getBoolean("foreingKey");
|
490 |
closedList = state.getBoolean("selectable");
|
491 |
labelFormula = state.getString("labelFormula");
|
492 |
codeName = state.getString("codeName");
|
493 |
tableName = state.getString("tableName");
|
494 |
ensureReferentialIntegrity = state.getBoolean("ensureReferentialIntegrity");
|
495 |
} |
496 |
|
497 |
@Override
|
498 |
public void saveToState(PersistentState state) throws PersistenceException { |
499 |
state.set("foreingKey", foreingKey);
|
500 |
state.set("selectable", closedList);
|
501 |
state.set("labelFormula", labelFormula);
|
502 |
state.set("codeName", codeName);
|
503 |
state.set("tableName", tableName);
|
504 |
state.set("ensureReferentialIntegrity", ensureReferentialIntegrity);
|
505 |
} |
506 |
|
507 |
private static final String FOREINGKEY_PERSISTENCE_DEFINITION_NAME = "ForeingKey"; |
508 |
|
509 |
public static void registerPersistenceDefinition() { |
510 |
PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
511 |
|
512 |
if (manager.getDefinition(FOREINGKEY_PERSISTENCE_DEFINITION_NAME)
|
513 |
== null) {
|
514 |
DynStruct definition = manager.addDefinition(DefaultForeingKey.class, |
515 |
FOREINGKEY_PERSISTENCE_DEFINITION_NAME, |
516 |
FOREINGKEY_PERSISTENCE_DEFINITION_NAME |
517 |
+ " persistent definition",
|
518 |
null,
|
519 |
null
|
520 |
); |
521 |
definition.addDynFieldBoolean("foreingKey");
|
522 |
definition.addDynFieldBoolean("selectable");
|
523 |
definition.addDynFieldString("LabelFormula");
|
524 |
definition.addDynFieldString("codeName");
|
525 |
definition.addDynFieldString("tableName");
|
526 |
definition.addDynFieldBoolean("ensureReferentialIntegrity");
|
527 |
} |
528 |
} |
529 |
|
530 |
@Override
|
531 |
public ForeingKey clone() throws CloneNotSupportedException { |
532 |
DefaultForeingKey other = (DefaultForeingKey) super.clone();
|
533 |
return other;
|
534 |
} |
535 |
|
536 |
@Override
|
537 |
public boolean getEnsureReferentialIntegrity() { |
538 |
return this.ensureReferentialIntegrity; |
539 |
} |
540 |
|
541 |
@Override
|
542 |
public void setEnsureReferentialIntegrity(boolean ensureReferentialIntegrity) { |
543 |
this.ensureReferentialIntegrity = ensureReferentialIntegrity;
|
544 |
} |
545 |
|
546 |
@Override
|
547 |
public boolean isInAvailableValues(Object valueToCheck) { |
548 |
if (this.hasAvailableValues() && availableValues.length > 0) { |
549 |
for (DynObjectValueItem availableValue : availableValues) {
|
550 |
if (Objects.equals(valueToCheck, availableValue.getValue())) {
|
551 |
return true; |
552 |
} |
553 |
} |
554 |
} |
555 |
return false; |
556 |
} |
557 |
|
558 |
@Override
|
559 |
public boolean hasAvailableValues() { |
560 |
if (this.availableValues == null) { |
561 |
this.getAvailableValues(null); |
562 |
} |
563 |
return this.availableValues != null; |
564 |
} |
565 |
|
566 |
} |