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 / LargeFeatureReferenceSelection.java @ 46309
History | View | Annotate | Download (13.2 KB)
1 |
/*
|
---|---|
2 |
* gvSIG. Desktop Geographic Information System.
|
3 |
*
|
4 |
* Copyright (C) 2007-2020 gvSIG Association.
|
5 |
*
|
6 |
* This program is free software; you can redistribute it and/or
|
7 |
* modify it under the terms of the GNU General Public License
|
8 |
* as published by the Free Software Foundation; either version 3
|
9 |
* of the License, or (at your option) any later version.
|
10 |
*
|
11 |
* This program is distributed in the hope that it will be useful,
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
14 |
* GNU General Public License for more details.
|
15 |
*
|
16 |
* You should have received a copy of the GNU General Public License
|
17 |
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
18 |
*
|
19 |
* For any additional information, do not hesitate to contact us
|
20 |
* at info AT gvsig.com, or visit our website www.gvsig.com.
|
21 |
*/
|
22 |
package org.gvsig.fmap.dal.feature.impl; |
23 |
|
24 |
import java.util.Iterator; |
25 |
import java.util.List; |
26 |
import java.util.Set; |
27 |
import org.gvsig.fmap.dal.DataStore; |
28 |
import org.gvsig.fmap.dal.DataStoreNotification; |
29 |
import org.gvsig.fmap.dal.exception.DataException; |
30 |
import org.gvsig.fmap.dal.feature.Feature; |
31 |
import org.gvsig.fmap.dal.feature.FeatureReference; |
32 |
import org.gvsig.fmap.dal.feature.FeatureReferenceSelection; |
33 |
import org.gvsig.fmap.dal.feature.FeatureStore; |
34 |
import org.gvsig.fmap.dal.feature.FeatureStoreNotification; |
35 |
import org.gvsig.fmap.dal.feature.FeatureType; |
36 |
import org.gvsig.tools.ToolsLocator; |
37 |
import org.gvsig.tools.dispose.DisposeUtils; |
38 |
import org.gvsig.tools.dispose.impl.AbstractDisposable; |
39 |
import org.gvsig.tools.dynobject.DynStruct; |
40 |
import org.gvsig.tools.exception.BaseException; |
41 |
import org.gvsig.tools.observer.Observable; |
42 |
import org.gvsig.tools.observer.Observer; |
43 |
import org.gvsig.tools.observer.impl.DelegateWeakReferencingObservable; |
44 |
import org.gvsig.tools.persistence.PersistentState; |
45 |
import org.gvsig.tools.persistence.exception.PersistenceException; |
46 |
import org.gvsig.tools.util.Size64; |
47 |
import org.gvsig.tools.visitor.Visitor; |
48 |
|
49 |
/**
|
50 |
*
|
51 |
* @author gvSIG Team
|
52 |
*/
|
53 |
@SuppressWarnings("UseSpecificCatch") |
54 |
public class LargeFeatureReferenceSelection extends AbstractDisposable |
55 |
implements FeatureReferenceSelection {
|
56 |
|
57 |
public static final String DYNCLASS_PERSISTENT_NAME = "LargeFeatureReferenceSelection"; |
58 |
|
59 |
private Set<String> selection; |
60 |
private DefaultFeatureStore featureStore;
|
61 |
private Boolean available = null; |
62 |
private DelegateWeakReferencingObservable delegateObservable
|
63 |
= new DelegateWeakReferencingObservable(this); |
64 |
|
65 |
public LargeFeatureReferenceSelection(DefaultFeatureStore featureStore) {
|
66 |
super();
|
67 |
this.featureStore = featureStore;
|
68 |
DisposeUtils.bind(this.featureStore);
|
69 |
this.selection = featureStore.getManager().createLargeSet();
|
70 |
|
71 |
} |
72 |
|
73 |
LargeFeatureReferenceSelection(FeatureStore featureStore, FeatureSelectionHelper helper) { |
74 |
super();
|
75 |
this.featureStore = (DefaultFeatureStore) featureStore;
|
76 |
DisposeUtils.bind(this.featureStore);
|
77 |
this.selection = this.featureStore.getManager().createLargeSet(); |
78 |
} |
79 |
|
80 |
/**
|
81 |
* Constructor used by the persistence manager. Don't use directly. After to
|
82 |
* invoke this method, the persistence manager calls the the method
|
83 |
* {@link #loadFromState(PersistentState)} to set the values of the internal
|
84 |
* attributes that this class needs to work.
|
85 |
*/
|
86 |
LargeFeatureReferenceSelection() { |
87 |
super();
|
88 |
} |
89 |
|
90 |
public FeatureStore getFeatureStore() {
|
91 |
return featureStore;
|
92 |
} |
93 |
|
94 |
@Override
|
95 |
public boolean select(FeatureReference reference) { |
96 |
return this.selection.add(reference.getCode()); |
97 |
} |
98 |
|
99 |
@Override
|
100 |
public boolean deselect(FeatureReference reference) { |
101 |
boolean change;
|
102 |
change = this.selection.contains(reference.getCode());
|
103 |
this.selection.remove(reference.getCode());
|
104 |
if (change) {
|
105 |
notifyObservers(DataStoreNotification.SELECTION_CHANGE); |
106 |
} |
107 |
return change;
|
108 |
} |
109 |
|
110 |
@Override
|
111 |
public void selectAll() throws DataException { |
112 |
try {
|
113 |
this.featureStore.accept((Object obj) -> { |
114 |
selection.add(((Feature) obj).getReference().getCode()); |
115 |
}); |
116 |
} catch (BaseException ex) {
|
117 |
throw new RuntimeException("Can't select all", ex); |
118 |
} |
119 |
} |
120 |
|
121 |
@Override
|
122 |
public void deselectAll() throws DataException { |
123 |
this.selection.clear();
|
124 |
} |
125 |
|
126 |
@Override
|
127 |
public boolean isSelected(FeatureReference reference) { |
128 |
return this.selection.contains(reference.getCode()); |
129 |
} |
130 |
|
131 |
@Override
|
132 |
public void reverse() { |
133 |
try {
|
134 |
this.featureStore.accept((Object obj) -> { |
135 |
String key = ((Feature) obj).getReference().getCode();
|
136 |
if(selection.contains(key)) {
|
137 |
selection.remove(key); |
138 |
} else {
|
139 |
selection.add(key); |
140 |
} |
141 |
}); |
142 |
} catch (BaseException ex) {
|
143 |
throw new RuntimeException("Can't reverse selection", ex); |
144 |
} |
145 |
} |
146 |
|
147 |
public boolean isEmpty() { |
148 |
if (this.selection == null) { |
149 |
return true; |
150 |
} |
151 |
return this.getSelectedCount() == 0; |
152 |
} |
153 |
|
154 |
@Override
|
155 |
public long getSelectedCount() { |
156 |
try {
|
157 |
return ((Size64)selection).size64();
|
158 |
} catch(Exception ex) { |
159 |
return selection.size();
|
160 |
} |
161 |
} |
162 |
|
163 |
@Override
|
164 |
public Iterator<FeatureReference> referenceIterator() { |
165 |
Iterator<String> it = selection.iterator(); |
166 |
Iterator<FeatureReference> itFeatureReferences = new Iterator<FeatureReference>() { |
167 |
@Override
|
168 |
public boolean hasNext() { |
169 |
return it.hasNext();
|
170 |
} |
171 |
|
172 |
@Override
|
173 |
public FeatureReference next() {
|
174 |
String code = it.next();
|
175 |
FeatureReference fref = featureStore.getFeatureReference(code); |
176 |
return fref;
|
177 |
} |
178 |
}; |
179 |
return itFeatureReferences;
|
180 |
} |
181 |
|
182 |
@Override
|
183 |
@SuppressWarnings("Convert2Lambda") |
184 |
public Iterable<FeatureReference> referenceIterable() { |
185 |
return new Iterable<FeatureReference>() { |
186 |
@Override
|
187 |
public Iterator<FeatureReference> iterator() { |
188 |
Iterator<String> it = selection.iterator(); |
189 |
|
190 |
return new Iterator<FeatureReference>() { |
191 |
@Override
|
192 |
public boolean hasNext() { |
193 |
return it.hasNext();
|
194 |
} |
195 |
|
196 |
@Override
|
197 |
public FeatureReference next() {
|
198 |
String code = it.next();
|
199 |
FeatureReference fref = featureStore.getFeatureReference(code); |
200 |
return fref;
|
201 |
} |
202 |
}; |
203 |
} |
204 |
}; |
205 |
} |
206 |
|
207 |
@Override
|
208 |
public boolean isAvailable() { |
209 |
if (this.available == null) { |
210 |
this.available = false; |
211 |
if(this.featureStore != null){ |
212 |
try {
|
213 |
FeatureType type = this.featureStore.getDefaultFeatureType();
|
214 |
this.available = type.supportReferences();
|
215 |
} catch (DataException ex) {
|
216 |
this.available = false; |
217 |
} |
218 |
} |
219 |
} |
220 |
return this.available; |
221 |
} |
222 |
|
223 |
@Override
|
224 |
public boolean isFromStore(DataStore store) { |
225 |
return featureStore.equals(store);
|
226 |
} |
227 |
|
228 |
@Override
|
229 |
public void accept(Visitor visitor) throws BaseException { |
230 |
for (String string : selection) { |
231 |
FeatureReference fref = featureStore.getFeatureReference(string); |
232 |
visitor.visit(fref); |
233 |
} |
234 |
} |
235 |
|
236 |
@Override
|
237 |
protected void doDispose() throws BaseException { |
238 |
delegateObservable.deleteObservers(); |
239 |
deselectAll(); |
240 |
DisposeUtils.dispose(this.featureStore);
|
241 |
DisposeUtils.dispose(this.selection);
|
242 |
this.delegateObservable = null; |
243 |
this.featureStore = null; |
244 |
this.selection = null; |
245 |
} |
246 |
|
247 |
@Override
|
248 |
public void addObserver(Observer observer) { |
249 |
delegateObservable.addObserver(observer); |
250 |
} |
251 |
|
252 |
@Override
|
253 |
public void beginComplexNotification() { |
254 |
delegateObservable.beginComplexNotification(); |
255 |
} |
256 |
|
257 |
@Override
|
258 |
public void deleteObserver(Observer observer) { |
259 |
delegateObservable.deleteObserver(observer); |
260 |
} |
261 |
|
262 |
@Override
|
263 |
public void deleteObservers() { |
264 |
delegateObservable.deleteObservers(); |
265 |
} |
266 |
|
267 |
@Override
|
268 |
public void disableNotifications() { |
269 |
delegateObservable.disableNotifications(); |
270 |
} |
271 |
|
272 |
@Override
|
273 |
public void enableNotifications() { |
274 |
delegateObservable.enableNotifications(); |
275 |
} |
276 |
|
277 |
@Override
|
278 |
public void endComplexNotification() { |
279 |
// We don't want to notify many times in a complex notification
|
280 |
// scenario, so ignore notifications if in complex.
|
281 |
// Only one notification will be sent when the complex notification
|
282 |
// ends.
|
283 |
delegateObservable.notifyObservers(DataStoreNotification.SELECTION_CHANGE); |
284 |
delegateObservable.endComplexNotification(); |
285 |
} |
286 |
|
287 |
public boolean inComplex() { |
288 |
return delegateObservable.inComplex();
|
289 |
} |
290 |
|
291 |
public boolean isEnabledNotifications() { |
292 |
return delegateObservable.isEnabledNotifications();
|
293 |
} |
294 |
|
295 |
public void notifyObservers() { |
296 |
// We don't want to notify many times in a complex notification
|
297 |
// scenario, so ignore notifications if in complex.
|
298 |
// Only one notification will be sent when the complex notification
|
299 |
// ends.
|
300 |
if (!delegateObservable.inComplex()) {
|
301 |
delegateObservable.notifyObservers(); |
302 |
} |
303 |
} |
304 |
|
305 |
public void notifyObservers(Object arg) { |
306 |
if (!delegateObservable.inComplex()) {
|
307 |
delegateObservable.notifyObservers(arg); |
308 |
} |
309 |
} |
310 |
|
311 |
// @Override
|
312 |
// public Object clone() throws CloneNotSupportedException {
|
313 |
// LargeFeatureReferenceSelection clone = (LargeFeatureReferenceSelection) super.clone();
|
314 |
// // Original observers aren't cloned
|
315 |
// clone.delegateObservable = new DelegateWeakReferencingObservable(clone);
|
316 |
// // Clone internal data
|
317 |
// clone.selection = new LargeMapImpl<>();
|
318 |
// for (Map.Entry<String, Boolean> entry : selection.entrySet()) {
|
319 |
// String key = entry.getKey();
|
320 |
// Boolean val = entry.getValue();
|
321 |
// clone.selection.put(key, val);
|
322 |
// }
|
323 |
// return clone;
|
324 |
// }
|
325 |
|
326 |
|
327 |
@Override
|
328 |
public void update(Observable observable, Object notification) { |
329 |
// If a Feature is deleted, remove it from the selection Set.
|
330 |
if (notification instanceof FeatureStoreNotification) { |
331 |
FeatureStoreNotification storeNotif = (FeatureStoreNotification) notification; |
332 |
if (FeatureStoreNotification.AFTER_DELETE
|
333 |
.equalsIgnoreCase(storeNotif.getType())) { |
334 |
this.deselect(storeNotif.getFeature().getReference());
|
335 |
} |
336 |
} |
337 |
} |
338 |
|
339 |
@Override
|
340 |
public void saveToState(PersistentState state) throws PersistenceException { |
341 |
state.set("store", featureStore);
|
342 |
} |
343 |
|
344 |
@Override
|
345 |
public void loadFromState(PersistentState state) throws PersistenceException { |
346 |
featureStore = (DefaultFeatureStore) state.get("store");
|
347 |
if(selection != null) { |
348 |
this.selection.clear();
|
349 |
} else {
|
350 |
this.selection = this.featureStore.getManager().createLargeSet(); |
351 |
} |
352 |
Iterator it = state.getIterator("selected"); |
353 |
while (it!=null && it.hasNext()) { |
354 |
FeatureReference ref = (FeatureReference) it.next(); |
355 |
this.select(ref);
|
356 |
} |
357 |
|
358 |
/*
|
359 |
* If we do not do this, feature store will not listen
|
360 |
* to changes in selection after instantiating a
|
361 |
* persisted selection. For non-persisted instances,
|
362 |
* this line corresponds to the line found in method:
|
363 |
* getFeatureSelection() in DefaultFeatureStore.
|
364 |
* This is not dangerous because "addObserver" only adds
|
365 |
* if they were not already added, so future invocations
|
366 |
* with same instances will have no effect.
|
367 |
*/
|
368 |
this.addObserver((DefaultFeatureStore) featureStore);
|
369 |
} |
370 |
|
371 |
protected void clearFeatureReferences() { |
372 |
if (this.selection == null) { |
373 |
return;
|
374 |
} |
375 |
this.selection.clear();
|
376 |
} |
377 |
|
378 |
public List<FeatureType> getFeatureTypes() { |
379 |
try {
|
380 |
return featureStore.getFeatureTypes();
|
381 |
} catch (Exception e) { |
382 |
throw new RuntimeException(e); |
383 |
} |
384 |
} |
385 |
|
386 |
public static void registerPersistent() { |
387 |
DynStruct definition = ToolsLocator.getPersistenceManager().addDefinition( |
388 |
DefaultFeatureReferenceSelection.class, |
389 |
DYNCLASS_PERSISTENT_NAME, |
390 |
"LargeFeatureReferenceSelection Persistent definition",
|
391 |
null,
|
392 |
null
|
393 |
); |
394 |
|
395 |
definition.addDynFieldObject("store").setClassOfValue(FeatureStore.class).setMandatory(true); |
396 |
// definition.addDynFieldLong("totalSize").setMandatory(true);
|
397 |
definition.addDynFieldList("selected").setClassOfItems(FeatureReference.class).setMandatory(false); |
398 |
|
399 |
} |
400 |
|
401 |
|
402 |
|
403 |
} |