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 / IndexFeatureSet.java @ 40559
History | View | Annotate | Download (7.87 KB)
1 | 40559 | jjdelcerro | /**
|
---|---|---|---|
2 | * gvSIG. Desktop Geographic Information System.
|
||
3 | *
|
||
4 | * Copyright (C) 2007-2013 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, write to the Free Software
|
||
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
||
19 | * MA 02110-1301, USA.
|
||
20 | *
|
||
21 | * For any additional information, do not hesitate to contact us
|
||
22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
|
||
23 | */
|
||
24 | 40435 | jjdelcerro | /* gvSIG. Geographic Information System of the Valencian Government
|
25 | *
|
||
26 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
|
||
27 | * of the Valencian Government (CIT)
|
||
28 | *
|
||
29 | * This program is free software; you can redistribute it and/or
|
||
30 | * modify it under the terms of the GNU General Public License
|
||
31 | * as published by the Free Software Foundation; either version 2
|
||
32 | * of the License, or (at your option) any later version.
|
||
33 | *
|
||
34 | * This program is distributed in the hope that it will be useful,
|
||
35 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
36 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
37 | * GNU General Public License for more details.
|
||
38 | *
|
||
39 | * You should have received a copy of the GNU General Public License
|
||
40 | * along with this program; if not, write to the Free Software
|
||
41 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
||
42 | * MA 02110-1301, USA.
|
||
43 | *
|
||
44 | */
|
||
45 | |||
46 | /*
|
||
47 | * AUTHORS (In addition to CIT):
|
||
48 | * 2008 {{Company}} {{Task}}
|
||
49 | */
|
||
50 | |||
51 | |||
52 | package org.gvsig.fmap.dal.feature.impl; |
||
53 | |||
54 | import java.util.ArrayList; |
||
55 | import java.util.Collections; |
||
56 | import java.util.Iterator; |
||
57 | import java.util.List; |
||
58 | |||
59 | import org.gvsig.fmap.dal.DataStore; |
||
60 | import org.gvsig.fmap.dal.exception.DataException; |
||
61 | import org.gvsig.fmap.dal.exception.ReadRuntimeException; |
||
62 | import org.gvsig.fmap.dal.feature.EditableFeature; |
||
63 | import org.gvsig.fmap.dal.feature.Feature; |
||
64 | import org.gvsig.fmap.dal.feature.FeatureReference; |
||
65 | import org.gvsig.fmap.dal.feature.FeatureSet; |
||
66 | import org.gvsig.fmap.dal.feature.FeatureType; |
||
67 | import org.gvsig.fmap.dal.feature.impl.featureset.DynObjectSetFeatureSetFacade; |
||
68 | import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
||
69 | import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
||
70 | import org.gvsig.fmap.dal.feature.spi.FeatureSetProvider; |
||
71 | import org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider; |
||
72 | import org.gvsig.fmap.dal.feature.spi.FeatureStoreProviderServices; |
||
73 | import org.gvsig.fmap.dal.feature.spi.LongList; |
||
74 | import org.gvsig.fmap.dal.feature.spi.index.FeatureIndexProviderServices; |
||
75 | import org.gvsig.tools.dispose.DisposableIterator; |
||
76 | import org.gvsig.tools.dynobject.DynObjectSet; |
||
77 | import org.gvsig.tools.exception.BaseException; |
||
78 | import org.gvsig.tools.visitor.Visitor; |
||
79 | |||
80 | |||
81 | public class IndexFeatureSet implements FeatureSet, FeatureSetProvider { |
||
82 | |||
83 | LongList featureReferences = null;
|
||
84 | FeatureStoreProvider storeProvider = null;
|
||
85 | FeatureStoreProviderServices store = null;
|
||
86 | FeatureIndexProviderServices index = null;
|
||
87 | List featureTypes = null; |
||
88 | |||
89 | public class IndexIterator implements DisposableIterator { |
||
90 | Iterator it = null; |
||
91 | |||
92 | public IndexIterator(Iterator it) { |
||
93 | this.it = it;
|
||
94 | } |
||
95 | |||
96 | public boolean hasNext() { |
||
97 | return it.hasNext();
|
||
98 | } |
||
99 | |||
100 | public Object next() { |
||
101 | Object oid = it.next();
|
||
102 | FeatureReference ref = new DefaultFeatureReference(store
|
||
103 | .getFeatureStore(), oid); |
||
104 | try {
|
||
105 | return store.getFeatureStore().getFeatureByReference(ref);
|
||
106 | } catch (DataException e) {
|
||
107 | throw new ReadRuntimeException(store.getName(), e); |
||
108 | } |
||
109 | } |
||
110 | |||
111 | public void remove() { |
||
112 | throw new UnsupportedOperationException(); |
||
113 | } |
||
114 | |||
115 | public void dispose() { |
||
116 | this.it = null; |
||
117 | } |
||
118 | } |
||
119 | |||
120 | public class FastIndexIterator implements DisposableIterator { |
||
121 | Iterator it = null; |
||
122 | DefaultFeature feature = null;
|
||
123 | |||
124 | public FastIndexIterator(Iterator it) throws DataException { |
||
125 | this.it = it;
|
||
126 | feature = (DefaultFeature) store.createFeature(storeProvider |
||
127 | .createFeatureProvider(index.getFeatureType())); |
||
128 | } |
||
129 | |||
130 | public boolean hasNext() { |
||
131 | return it.hasNext();
|
||
132 | } |
||
133 | |||
134 | public Object next() { |
||
135 | Object oid = it.next();
|
||
136 | try {
|
||
137 | // Long longer=new Long(((Integer)oid).longValue());
|
||
138 | FeatureReference ref = new DefaultFeatureReference(store
|
||
139 | .getFeatureStore(), oid); |
||
140 | FeatureProvider data = storeProvider |
||
141 | .getFeatureProviderByReference((FeatureReferenceProviderServices) ref); |
||
142 | |||
143 | feature.setData(data); |
||
144 | |||
145 | return feature;
|
||
146 | } catch (DataException e) {
|
||
147 | throw new ReadRuntimeException(store.getName(), e); |
||
148 | } |
||
149 | } |
||
150 | |||
151 | public void remove() { |
||
152 | throw new UnsupportedOperationException(); |
||
153 | } |
||
154 | |||
155 | public void dispose() { |
||
156 | this.it = null; |
||
157 | this.feature = null; |
||
158 | |||
159 | } |
||
160 | } |
||
161 | |||
162 | public IndexFeatureSet(FeatureIndexProviderServices index, LongList featureReferences) {
|
||
163 | this.featureReferences = featureReferences;
|
||
164 | this.store = index.getFeatureStoreProviderServices();
|
||
165 | this.storeProvider = store.getProvider();
|
||
166 | this.index = index;
|
||
167 | } |
||
168 | |||
169 | public boolean canFilter() { |
||
170 | return false; |
||
171 | } |
||
172 | |||
173 | public boolean canIterateFromIndex() { |
||
174 | return true; |
||
175 | } |
||
176 | |||
177 | public boolean canOrder() { |
||
178 | return false; |
||
179 | } |
||
180 | |||
181 | public DisposableIterator fastIterator(long index) throws DataException { |
||
182 | if (store.getFeatureStore().isEditing()) {
|
||
183 | return this.iterator(index); |
||
184 | } |
||
185 | return new FastIndexIterator(this.featureReferences.iterator(index)); |
||
186 | } |
||
187 | |||
188 | public DisposableIterator fastIterator() throws DataException { |
||
189 | if (store.getFeatureStore().isEditing()) {
|
||
190 | return this.iterator(); |
||
191 | } |
||
192 | return new FastIndexIterator(this.featureReferences.iterator()); |
||
193 | } |
||
194 | |||
195 | public long getSize() throws DataException { |
||
196 | return featureReferences.getSize();
|
||
197 | } |
||
198 | |||
199 | public boolean isEmpty() throws DataException { |
||
200 | return featureReferences.isEmpty();
|
||
201 | } |
||
202 | |||
203 | public DisposableIterator iterator() throws DataException { |
||
204 | return new IndexIterator(this.featureReferences.iterator()); |
||
205 | } |
||
206 | |||
207 | public DisposableIterator iterator(long index) throws DataException { |
||
208 | return new IndexIterator(this.featureReferences.iterator(index)); |
||
209 | } |
||
210 | |||
211 | public void delete(Feature feature) throws DataException { |
||
212 | index.delete(feature); |
||
213 | store.getFeatureStore().delete(feature); |
||
214 | } |
||
215 | |||
216 | public FeatureType getDefaultFeatureType() {
|
||
217 | return index.getFeatureType();
|
||
218 | } |
||
219 | |||
220 | public List getFeatureTypes() { |
||
221 | List types = new ArrayList(); |
||
222 | types.add(index.getFeatureType()); |
||
223 | return Collections.unmodifiableList(types); |
||
224 | } |
||
225 | |||
226 | public void insert(EditableFeature feature) throws DataException { |
||
227 | index.insert(feature); |
||
228 | store.getFeatureStore().insert(feature); |
||
229 | } |
||
230 | |||
231 | public void update(EditableFeature feature) throws DataException { |
||
232 | store.getFeatureStore().update(feature); |
||
233 | // we need to re-index the feature, since its shape might have changed
|
||
234 | index.delete(feature); |
||
235 | index.insert(feature); |
||
236 | } |
||
237 | |||
238 | public void dispose() { |
||
239 | |||
240 | } |
||
241 | |||
242 | public boolean isFromStore(DataStore store) { |
||
243 | return this.store.equals(store); |
||
244 | } |
||
245 | |||
246 | public void accept(Visitor visitor) throws BaseException { |
||
247 | accept(visitor, 0);
|
||
248 | } |
||
249 | |||
250 | public void accept(Visitor visitor, long firstValueIndex) |
||
251 | throws BaseException {
|
||
252 | synchronized (store.getFeatureStore()) {
|
||
253 | DisposableIterator iterator = fastIterator(firstValueIndex); |
||
254 | |||
255 | if (iterator != null) { |
||
256 | try {
|
||
257 | while (iterator.hasNext()) {
|
||
258 | Feature feature = (Feature) iterator.next(); |
||
259 | visitor.visit(feature); |
||
260 | } |
||
261 | } finally {
|
||
262 | iterator.dispose(); |
||
263 | } |
||
264 | } |
||
265 | } |
||
266 | } |
||
267 | |||
268 | public DynObjectSet getDynObjectSet() {
|
||
269 | return new DynObjectSetFeatureSetFacade(this, store.getFeatureStore()); |
||
270 | } |
||
271 | |||
272 | public DynObjectSet getDynObjectSet(boolean fast) { |
||
273 | return new DynObjectSetFeatureSetFacade(this, store.getFeatureStore(), |
||
274 | fast); |
||
275 | } |
||
276 | |||
277 | } |