root / branches / v2_0_0_prep / extensions / org.gvsig.oracle / src / org / gvsig / fmap / dal / store / oracle / OracleSetProvider.java @ 38055
History | View | Annotate | Download (13.5 KB)
1 |
/* gvSIG. Geographic Information System of the Valencian Government
|
---|---|
2 |
*
|
3 |
* Copyright (C) 2007-2008 Infrastructures and Transports Department
|
4 |
* of the Valencian Government (CIT)
|
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 2
|
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 |
*/
|
22 |
|
23 |
/*
|
24 |
* AUTHORS (In addition to CIT):
|
25 |
* 2009 Prodevelop S.L. main development
|
26 |
*/
|
27 |
|
28 |
/**
|
29 |
*
|
30 |
*/
|
31 |
package org.gvsig.fmap.dal.store.oracle; |
32 |
|
33 |
import java.sql.Connection; |
34 |
|
35 |
import org.gvsig.fmap.dal.exception.DataException; |
36 |
import org.gvsig.fmap.dal.feature.FeatureQuery; |
37 |
import org.gvsig.fmap.dal.feature.FeatureType; |
38 |
import org.gvsig.fmap.dal.feature.spi.AbstractFeatureStoreProvider; |
39 |
import org.gvsig.fmap.dal.store.jdbc.JDBCIterator; |
40 |
import org.gvsig.fmap.dal.store.jdbc.JDBCSetProvider; |
41 |
import org.gvsig.fmap.dal.store.jdbc.JDBCStoreProvider; |
42 |
import org.gvsig.fmap.geom.Geometry; |
43 |
import org.gvsig.fmap.geom.GeometryException; |
44 |
import org.gvsig.fmap.geom.GeometryLocator; |
45 |
import org.gvsig.fmap.geom.GeometryManager; |
46 |
import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
47 |
import org.gvsig.fmap.geom.aggregate.impl.MultiSurface2D; |
48 |
import org.gvsig.fmap.geom.primitive.Envelope; |
49 |
import org.gvsig.fmap.geom.primitive.NullGeometry; |
50 |
import org.gvsig.fmap.geom.primitive.impl.Circle2D; |
51 |
import org.gvsig.fmap.mapcontext.layers.vectorial.IntersectsEnvelopeEvaluator; |
52 |
import org.gvsig.fmap.mapcontext.layers.vectorial.IntersectsGeometryEvaluator; |
53 |
import org.gvsig.tools.evaluator.Evaluator; |
54 |
import org.gvsig.tools.evaluator.EvaluatorFieldValueMatch; |
55 |
import org.slf4j.Logger; |
56 |
import org.slf4j.LoggerFactory; |
57 |
|
58 |
/**
|
59 |
* @author jmvivo
|
60 |
*
|
61 |
*/
|
62 |
public class OracleSetProvider extends JDBCSetProvider { |
63 |
|
64 |
private static Logger logger = LoggerFactory.getLogger(OracleSetProvider.class); |
65 |
|
66 |
public OracleSetProvider(JDBCStoreProvider store, FeatureQuery query,
|
67 |
FeatureType featureType) throws DataException {
|
68 |
super(store, query, featureType);
|
69 |
} |
70 |
|
71 |
/*
|
72 |
* (non-Javadoc)
|
73 |
*
|
74 |
* @see org.gvsig.fmap.dal.feature.spi.FeatureSetProvider#canFilter()
|
75 |
*/
|
76 |
public boolean canFilter() { |
77 |
// TODO more checks
|
78 |
// return true;
|
79 |
return true; |
80 |
} |
81 |
|
82 |
protected JDBCIterator createFastIterator(long index) throws DataException { |
83 |
return super.createFastIterator(index); |
84 |
} |
85 |
|
86 |
protected JDBCIterator createDefaultFastIterator(int resultSetID) |
87 |
throws DataException {
|
88 |
|
89 |
// super(store, set, featureType, resultsetID);
|
90 |
// this.featureProvider = super.createFeatureProvider();
|
91 |
|
92 |
return new OracleJdbcFastIterator((JDBCStoreProvider) getStore(), this, |
93 |
getFeatureType(), resultSetID); |
94 |
|
95 |
} |
96 |
|
97 |
|
98 |
protected String getSqlForEvaluator(Evaluator filter) { |
99 |
|
100 |
String gfld = getFeatureType().getDefaultGeometryAttributeName();
|
101 |
if (gfld == null) { |
102 |
try {
|
103 |
gfld = findGeometryName(getStore()); |
104 |
} catch (Exception ex) { |
105 |
logger.error("While getting geom field name: "
|
106 |
+ ex.getMessage() + ". Assumed: " + OracleValues.DEFAULT_CARTOCIUDAD_GEO_FIELD);
|
107 |
gfld = OracleValues.DEFAULT_CARTOCIUDAD_GEO_FIELD; |
108 |
} |
109 |
} |
110 |
|
111 |
Object envGeoOrNull = null; |
112 |
|
113 |
boolean isFilterApplicable = false; |
114 |
try {
|
115 |
if (filter == null |
116 |
|| filter instanceof IntersectsGeometryEvaluator
|
117 |
|| filter instanceof IntersectsEnvelopeEvaluator) {
|
118 |
isFilterApplicable = true;
|
119 |
envGeoOrNull = getGeomFilterObject(filter, (OracleStoreParameters) getStore().getParameters(), gfld); |
120 |
} else {
|
121 |
//If the filter is not null, the filterarea parameter has to be also applied
|
122 |
envGeoOrNull = getStore().getParameters().getDynValue(OracleStoreParameters.ORA_AREA_OF_INT_KEY); |
123 |
} |
124 |
|
125 |
} catch (Exception ex) { |
126 |
logger.error("While getting filter object: " + ex.getMessage());
|
127 |
} |
128 |
|
129 |
Envelope env = null;
|
130 |
Geometry geom = null;
|
131 |
String filterString = null; |
132 |
String srs = ""; |
133 |
boolean is_geo = false; |
134 |
|
135 |
if (envGeoOrNull != null) { |
136 |
if (envGeoOrNull instanceof Envelope) { |
137 |
|
138 |
srs = (String) getStore().getDynValue(OracleStoreParameters.ORA_TABLE_SRID_KEY);
|
139 |
is_geo = OracleUtils.getIsGCS(srs, srs != null && srs.length() > 0); |
140 |
env = (Envelope) envGeoOrNull; |
141 |
filterString = OracleUtils.getIntersectsEnvelopeSelect( |
142 |
gfld, env, srs, is_geo); |
143 |
|
144 |
} else {
|
145 |
if (envGeoOrNull instanceof Geometry) { |
146 |
|
147 |
geom = (Geometry) envGeoOrNull; |
148 |
if (geom instanceof NullGeometry) { |
149 |
// no intersection
|
150 |
filterString = "(ROWID is null)";
|
151 |
} else {
|
152 |
if (envGeoOrNull instanceof Circle2D) { |
153 |
env = geom.getEnvelope(); |
154 |
srs = (String) getStore().getDynValue(OracleStoreParameters.ORA_TABLE_SRID_KEY);
|
155 |
is_geo = OracleUtils.getIsGCS(srs, srs != null && srs.length() > 0); |
156 |
filterString = OracleUtils.getIntersectsEnvelopeSelect( |
157 |
gfld, env, srs, is_geo); |
158 |
|
159 |
} else {
|
160 |
|
161 |
// need conn
|
162 |
Connection conn = null; |
163 |
try {
|
164 |
conn = ((OracleStoreProvider) getStore()).getOraHelper().getConnection(); |
165 |
} catch (Exception ex) { |
166 |
logger.error("While getting connection: " + ex.getMessage());
|
167 |
return null; |
168 |
} |
169 |
srs = (String) getStore().getDynValue(OracleStoreParameters.ORA_TABLE_SRID_KEY);
|
170 |
is_geo = OracleUtils.getIsGCS(srs, srs != null && srs.length() > 0); |
171 |
filterString = OracleUtils.getIntersectsMultiRectSelect( |
172 |
gfld, geom, srs, is_geo, conn); |
173 |
} |
174 |
} |
175 |
} else {
|
176 |
// unknwon
|
177 |
logger.warn("Found unexpected object: " + envGeoOrNull.getClass().getName());
|
178 |
filterString = "(ROWID is null)";
|
179 |
} |
180 |
} |
181 |
} |
182 |
|
183 |
//If the filter has not been completely applied
|
184 |
if (!isFilterApplicable) {
|
185 |
if (filterString == null) { |
186 |
filterString = super.getSqlForEvaluator(filter);
|
187 |
}else{
|
188 |
filterString = filterString + " AND " + super.getSqlForEvaluator(filter); |
189 |
} |
190 |
} |
191 |
|
192 |
return filterString;
|
193 |
} |
194 |
|
195 |
private String findGeometryName(AbstractFeatureStoreProvider store) throws Exception { |
196 |
|
197 |
if (store instanceof OracleStoreProvider) { |
198 |
|
199 |
OracleStoreProvider osp = (OracleStoreProvider) store; |
200 |
FeatureType ft = osp.getFeatureStore().getDefaultFeatureType(); |
201 |
return ft.getDefaultGeometryAttributeName();
|
202 |
|
203 |
} else {
|
204 |
logger.error("Unable to get geometry field name! Assumed: " +
|
205 |
OracleValues.DEFAULT_CARTOCIUDAD_GEO_FIELD); |
206 |
return OracleValues.DEFAULT_CARTOCIUDAD_GEO_FIELD;
|
207 |
} |
208 |
|
209 |
} |
210 |
|
211 |
/**
|
212 |
* @param filter
|
213 |
* @param parameters
|
214 |
* @return
|
215 |
*/
|
216 |
private Object getGeomFilterObject( |
217 |
Evaluator filter, |
218 |
OracleStoreParameters ora_pars, |
219 |
String gfname) throws Exception { |
220 |
|
221 |
Geometry filter_geom = null;
|
222 |
Envelope filter_env = null;
|
223 |
Envelope working_env = ora_pars.getWorkingArea(); |
224 |
Geometry aoi_geom = (Geometry) ora_pars.getDynValue(OracleStoreParameters.ORA_AREA_OF_INT_KEY); |
225 |
|
226 |
// ==============================================================
|
227 |
GeometryManager gm = GeometryLocator.getGeometryManager(); |
228 |
|
229 |
// ==============================================================
|
230 |
if (filter instanceof IntersectsGeometryEvaluator) { |
231 |
IntersectsGeometryEvaluator geo_filt = (IntersectsGeometryEvaluator) filter; |
232 |
EvaluatorFieldValueMatch em = |
233 |
(EvaluatorFieldValueMatch) geo_filt.getFieldsInfo().getFieldValues(gfname)[0];
|
234 |
filter_geom = (Geometry) em.getValue(); |
235 |
|
236 |
if (filter_geom.getEnvelope().getLength(0) == 0 |
237 |
|| filter_geom.getEnvelope().getLength(1) == 0) { |
238 |
return gm.createNullGeometry(SUBTYPES.GEOM2D);
|
239 |
} |
240 |
|
241 |
} else {
|
242 |
if (filter instanceof IntersectsEnvelopeEvaluator) { |
243 |
IntersectsEnvelopeEvaluator geo_filt = (IntersectsEnvelopeEvaluator) filter; |
244 |
EvaluatorFieldValueMatch em = |
245 |
(EvaluatorFieldValueMatch) geo_filt.getFieldsInfo().getFieldValues(gfname)[0];
|
246 |
filter_env = (Envelope) em.getValue(); |
247 |
|
248 |
if (filter_env.getLength(0) == 0 |
249 |
|| filter_env.getLength(1) == 0) { |
250 |
return gm.createNullGeometry(SUBTYPES.GEOM2D);
|
251 |
} |
252 |
|
253 |
} |
254 |
} |
255 |
// ==============================================================
|
256 |
// envelope area == 0
|
257 |
|
258 |
// ==============================================================
|
259 |
|
260 |
|
261 |
|
262 |
if (filter_geom == null && filter_env == null) { |
263 |
if (working_env == null && aoi_geom == null) { |
264 |
return null; |
265 |
} else {
|
266 |
if (working_env != null) { |
267 |
if (aoi_geom == null) { |
268 |
return working_env;
|
269 |
} else {
|
270 |
return intersectEnvMultiRect(working_env, aoi_geom, gm);
|
271 |
} |
272 |
} else {
|
273 |
return aoi_geom;
|
274 |
} |
275 |
} |
276 |
} else {
|
277 |
if (filter_geom != null) { |
278 |
if (working_env == null && aoi_geom == null) { |
279 |
return filter_geom;
|
280 |
} else {
|
281 |
if (working_env != null) { |
282 |
if (aoi_geom == null) { |
283 |
return interSecEnv(filter_geom.getEnvelope(), working_env, gm);
|
284 |
} else {
|
285 |
Object aux = interSecEnv(filter_geom.getEnvelope(), working_env, gm);
|
286 |
if (aux instanceof Envelope) { |
287 |
Envelope aux_env = (Envelope) aux; |
288 |
return intersectEnvMultiRect(aux_env, aoi_geom, gm);
|
289 |
} else {
|
290 |
// null geometry
|
291 |
return aux;
|
292 |
} |
293 |
} |
294 |
} else {
|
295 |
return intersectEnvMultiRect(filter_geom.getEnvelope(), aoi_geom, gm);
|
296 |
} |
297 |
} |
298 |
} else {
|
299 |
// filter_env
|
300 |
if (working_env == null && aoi_geom == null) { |
301 |
return filter_env;
|
302 |
} else {
|
303 |
if (working_env != null) { |
304 |
if (aoi_geom == null) { |
305 |
return interSecEnv(filter_env, working_env, gm);
|
306 |
} else {
|
307 |
Object aux = interSecEnv(filter_env, working_env, gm);
|
308 |
if (aux instanceof Envelope) { |
309 |
Envelope aux_env = (Envelope) aux; |
310 |
return intersectEnvMultiRect(aux_env, aoi_geom, gm);
|
311 |
} else {
|
312 |
// null geometry
|
313 |
return aux;
|
314 |
} |
315 |
} |
316 |
} else {
|
317 |
return intersectEnvMultiRect(filter_env, aoi_geom, gm);
|
318 |
} |
319 |
} |
320 |
} |
321 |
} |
322 |
|
323 |
// =============================================================
|
324 |
} |
325 |
|
326 |
/**
|
327 |
* @param working_env
|
328 |
* @param aoi_geom
|
329 |
* @return
|
330 |
*/
|
331 |
private Object intersectEnvMultiRect(Envelope env, Geometry aoi, GeometryManager gma) throws Exception { |
332 |
if (env == null || aoi == null || aoi instanceof NullGeometry) { |
333 |
return gma.createNullGeometry(SUBTYPES.GEOM2D);
|
334 |
} else {
|
335 |
return OracleUtils.roughIntersection(aoi, env);
|
336 |
} |
337 |
} |
338 |
|
339 |
/**
|
340 |
* @param filter_env
|
341 |
* @param working_env
|
342 |
* @return
|
343 |
*/
|
344 |
private Object interSecEnv(Envelope enva, Envelope envb, GeometryManager gma) throws Exception { |
345 |
|
346 |
if (enva == null || envb == null) { |
347 |
return gma.createNullGeometry(SUBTYPES.GEOM2D);
|
348 |
} |
349 |
|
350 |
if (enva.intersects(envb)) {
|
351 |
// intersect envs
|
352 |
return enva.getGeometry().intersection(envb.getGeometry()).getEnvelope();
|
353 |
} else {
|
354 |
return gma.createNullGeometry(SUBTYPES.GEOM2D);
|
355 |
} |
356 |
} |
357 |
|
358 |
} |