svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.db / org.gvsig.fmap.dal.db.jdbc / src / main / java / org / gvsig / fmap / dal / store / jdbc / JDBCStoreProviderWriter.java @ 43020
History | View | Annotate | Download (22 KB)
1 |
/**
|
---|---|
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 |
package org.gvsig.fmap.dal.store.jdbc; |
25 |
|
26 |
import java.sql.Connection; |
27 |
import java.sql.PreparedStatement; |
28 |
import java.sql.SQLException; |
29 |
import java.sql.Statement; |
30 |
import java.util.ArrayList; |
31 |
import java.util.Arrays; |
32 |
import java.util.Iterator; |
33 |
import java.util.List; |
34 |
|
35 |
import org.gvsig.fmap.dal.exception.DataException; |
36 |
import org.gvsig.fmap.dal.exception.InitializeException; |
37 |
import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
38 |
import org.gvsig.fmap.dal.feature.FeatureRules; |
39 |
import org.gvsig.fmap.dal.feature.FeatureType; |
40 |
import org.gvsig.fmap.dal.feature.exception.PerformEditingException; |
41 |
import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
42 |
import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
43 |
import org.gvsig.fmap.dal.spi.DataStoreProviderServices; |
44 |
import org.gvsig.fmap.dal.store.db.FeatureTypeHelper; |
45 |
import org.gvsig.fmap.dal.store.jdbc.exception.JDBCExecutePreparedSQLException; |
46 |
import org.gvsig.fmap.dal.store.jdbc.exception.JDBCExecuteSQLException; |
47 |
import org.gvsig.fmap.dal.store.jdbc.exception.JDBCPreparingSQLException; |
48 |
import org.gvsig.fmap.dal.store.jdbc.exception.JDBCSQLException; |
49 |
import org.gvsig.fmap.dal.store.jdbc.exception.JDBCUpdateWithoutChangesException; |
50 |
import org.gvsig.tools.dynobject.DynObject; |
51 |
import org.slf4j.Logger; |
52 |
import org.slf4j.LoggerFactory; |
53 |
|
54 |
/**
|
55 |
* @author jmvivo
|
56 |
*
|
57 |
*/
|
58 |
public class JDBCStoreProviderWriter extends JDBCStoreProvider { |
59 |
|
60 |
final static private Logger logger = LoggerFactory |
61 |
.getLogger(JDBCStoreProviderWriter.class); |
62 |
|
63 |
protected Appender appender;
|
64 |
|
65 |
public JDBCStoreProviderWriter(JDBCStoreParameters params,
|
66 |
DataStoreProviderServices storeServices) |
67 |
throws InitializeException {
|
68 |
super(params, storeServices);
|
69 |
this.appender = this.createAppender(); |
70 |
} |
71 |
|
72 |
protected JDBCStoreProviderWriter(JDBCStoreParameters params,
|
73 |
DataStoreProviderServices storeServices, DynObject metadata) |
74 |
throws InitializeException {
|
75 |
super(params, storeServices, metadata);
|
76 |
this.appender = this.createAppender(); |
77 |
} |
78 |
|
79 |
protected Appender createAppender() {
|
80 |
return new JDBCAppender(this); |
81 |
} |
82 |
|
83 |
public boolean supportsAppendMode() { |
84 |
return true; |
85 |
} |
86 |
|
87 |
public void endAppend() throws DataException { |
88 |
this.appender.end();
|
89 |
} |
90 |
|
91 |
public void beginAppend() throws DataException { |
92 |
this.appender.begin();
|
93 |
} |
94 |
|
95 |
public void append(final FeatureProvider featureProvider) throws DataException { |
96 |
this.appender.append(featureProvider);
|
97 |
} |
98 |
|
99 |
protected void addToListFeatureValues(FeatureProvider featureProvider, |
100 |
FeatureAttributeDescriptor attrOfList, |
101 |
FeatureAttributeDescriptor attr, List<Object> values) throws DataException { |
102 |
if (attr == null) { |
103 |
if (attrOfList.isPrimaryKey()) {
|
104 |
throw new RuntimeException("pk attribute '" |
105 |
+ attrOfList.getName() + "' not found in feature");
|
106 |
} |
107 |
values.add(helper |
108 |
.dalValueToJDBC(attr, attrOfList.getDefaultValue())); |
109 |
} else {
|
110 |
values.add(helper.dalValueToJDBC(attr, featureProvider.get(attr |
111 |
.getIndex()))); |
112 |
} |
113 |
|
114 |
} |
115 |
|
116 |
protected void addToListFeatureValues(FeatureProvider featureProvider, |
117 |
List<FeatureAttributeDescriptor> attributes, List<Object> values) throws DataException { |
118 |
FeatureAttributeDescriptor attr, attrOfList; |
119 |
FeatureType fType = featureProvider.getType(); |
120 |
for (int i = 0; i < attributes.size(); i++) { |
121 |
attrOfList = (FeatureAttributeDescriptor) attributes.get(i); |
122 |
attr = fType.getAttributeDescriptor(attrOfList.getName()); |
123 |
addToListFeatureValues(featureProvider, attrOfList, attr, values); |
124 |
} |
125 |
} |
126 |
|
127 |
protected void appendToSQLPreparedPkWhereClause(StringBuilder sql, |
128 |
List<FeatureAttributeDescriptor> pkAttributes) {
|
129 |
sql.append(" Where ");
|
130 |
FeatureAttributeDescriptor attr; |
131 |
for (int i = 0; i < pkAttributes.size() - 1; i++) { |
132 |
attr = (FeatureAttributeDescriptor) pkAttributes.get(i); |
133 |
sql.append(helper.escapeFieldName(attr.getName())); |
134 |
sql.append(" = ? AND ");
|
135 |
} |
136 |
attr = (FeatureAttributeDescriptor) pkAttributes.get(pkAttributes |
137 |
.size() - 1);
|
138 |
sql.append(helper.escapeFieldName(attr.getName())); |
139 |
sql.append(" = ? ");
|
140 |
} |
141 |
|
142 |
protected void executeRemovePreparedStatement(Connection conn, String sql, |
143 |
List<FeatureAttributeDescriptor> attributes, Iterator<FeatureReferenceProviderServices> featureReferences) throws DataException { |
144 |
PreparedStatement st;
|
145 |
try {
|
146 |
st = conn.prepareStatement(sql); |
147 |
} catch (SQLException e) { |
148 |
throw new JDBCPreparingSQLException(sql, e); |
149 |
} |
150 |
try {
|
151 |
List<Object> values = new ArrayList<Object>(); |
152 |
FeatureReferenceProviderServices featureRef; |
153 |
// FeatureType featureType;
|
154 |
while (featureReferences.hasNext()) {
|
155 |
st.clearParameters(); |
156 |
featureRef = featureReferences.next(); |
157 |
values.clear(); |
158 |
// featureType = this.getFeatureStore()
|
159 |
// .getFeatureType(featureRef.getFeatureTypeId());
|
160 |
|
161 |
Iterator<FeatureAttributeDescriptor> iter = attributes.iterator();
|
162 |
FeatureAttributeDescriptor attr; |
163 |
while (iter.hasNext()) {
|
164 |
attr = iter.next(); |
165 |
values.add( helper.dalValueToJDBC(attr, featureRef |
166 |
.getKeyValue(attr.getName()))); |
167 |
} |
168 |
|
169 |
for (int i = 0; i < values.size(); i++) { |
170 |
st.setObject(i + 1, values.get(i));
|
171 |
} |
172 |
try {
|
173 |
int nAffected =JDBCHelper.executeUpdate(st);
|
174 |
if (nAffected == 0) { |
175 |
throw new JDBCUpdateWithoutChangesException(sql, values); |
176 |
} |
177 |
if (nAffected > 1){ |
178 |
logger.warn("Remove statement affectst to {} rows: {}",
|
179 |
nAffected, sql); |
180 |
} |
181 |
|
182 |
} catch (SQLException e) { |
183 |
throw new JDBCExecutePreparedSQLException(sql, values, e); |
184 |
} |
185 |
|
186 |
} |
187 |
} catch (SQLException e) { |
188 |
throw new JDBCSQLException(e); |
189 |
} finally {
|
190 |
try {st.close();} catch (SQLException e) { }; |
191 |
} |
192 |
|
193 |
} |
194 |
|
195 |
protected void executeUpdatePreparedStatement(Connection conn, String sql, |
196 |
List<FeatureAttributeDescriptor> attributes, Iterator<FeatureProvider> featureProviders) throws DataException { |
197 |
PreparedStatement st;
|
198 |
try {
|
199 |
st = conn.prepareStatement(sql); |
200 |
} catch (SQLException e) { |
201 |
throw new JDBCPreparingSQLException(sql, e); |
202 |
} |
203 |
try {
|
204 |
List<Object> values = new ArrayList<Object>(); |
205 |
FeatureProvider featureProvider; |
206 |
while (featureProviders.hasNext()) {
|
207 |
st.clearParameters(); |
208 |
featureProvider = (FeatureProvider) featureProviders.next(); |
209 |
values.clear(); |
210 |
addToListFeatureValues(featureProvider, attributes, values); |
211 |
for (int i = 0; i < values.size(); i++) { |
212 |
st.setObject(i + 1, values.get(i));
|
213 |
} |
214 |
try {
|
215 |
if ( JDBCHelper.executeUpdate(st) == 0) { |
216 |
throw new JDBCUpdateWithoutChangesException(sql, values); |
217 |
} |
218 |
} catch (SQLException e) { |
219 |
throw new JDBCExecutePreparedSQLException(sql, values, e); |
220 |
} |
221 |
|
222 |
} |
223 |
} catch (SQLException e) { |
224 |
throw new JDBCSQLException(e); |
225 |
} finally {
|
226 |
try {st.close();} catch (SQLException e) { }; |
227 |
} |
228 |
|
229 |
} |
230 |
|
231 |
protected void performDeletes(Connection conn, Iterator<FeatureReferenceProviderServices> deleteds, List<FeatureAttributeDescriptor> pkAttributes) |
232 |
throws DataException {
|
233 |
|
234 |
if (pkAttributes.size() < 0) { |
235 |
throw new RuntimeException("Operation requires missing pk"); |
236 |
} |
237 |
|
238 |
// ************ Prepare SQL ****************
|
239 |
StringBuilder sqlb = new StringBuilder(); |
240 |
sqlb.append("Delete from ");
|
241 |
sqlb.append(getJDBCParameters().tableID()); |
242 |
appendToSQLPreparedPkWhereClause(sqlb, pkAttributes); |
243 |
String sql = sqlb.toString();
|
244 |
// ************ Prepare SQL (end) ****************
|
245 |
|
246 |
executeRemovePreparedStatement(conn, sql, pkAttributes, deleteds); |
247 |
} |
248 |
|
249 |
protected String getSqlStatementAddField(FeatureAttributeDescriptor attr, |
250 |
List<String> additionalStatement) throws DataException { |
251 |
StringBuilder strb = new StringBuilder(); |
252 |
strb.append("ADD ");
|
253 |
strb.append(this.helper.getSqlFieldDescription(attr));
|
254 |
return strb.toString();
|
255 |
} |
256 |
|
257 |
protected String getSqlStatementDropField(FeatureAttributeDescriptor attr,List<String> additionalStatement) { |
258 |
// DROP [ COLUMN ] column
|
259 |
return " DROP COLUMN " |
260 |
+ this.helper.escapeFieldName(attr.getName());
|
261 |
|
262 |
} |
263 |
|
264 |
protected List<String> getSqlStatementAlterField( |
265 |
FeatureAttributeDescriptor attrOrg, |
266 |
FeatureAttributeDescriptor attrTrg, List<String> additionalStatement) |
267 |
throws DataException {
|
268 |
//
|
269 |
List<String> actions = new ArrayList<String>(); |
270 |
StringBuilder strb;
|
271 |
if (attrOrg.getDataType() != attrTrg.getDataType()) {
|
272 |
// ALTER COLUMN {col} TYPE {type} character varying(35)
|
273 |
strb = new StringBuilder(); |
274 |
strb.append("ALTER COLUMN ");
|
275 |
strb.append(helper.escapeFieldName(attrTrg.getName())); |
276 |
strb.append(" ");
|
277 |
strb.append(helper.getSqlColumnTypeDescription(attrTrg)); |
278 |
|
279 |
actions.add(strb.toString()); |
280 |
} |
281 |
|
282 |
if (attrOrg.allowNull() != attrTrg.allowNull()) {
|
283 |
// ALTER [ COLUMN ] column { SET | DROP } NOT NULL
|
284 |
|
285 |
strb = new StringBuilder(); |
286 |
strb.append("ALTER COLUMN ");
|
287 |
strb.append(helper.escapeFieldName(attrTrg.getName())); |
288 |
strb.append(' ');
|
289 |
if (attrTrg.allowNull()) {
|
290 |
strb.append("SET ");
|
291 |
} else {
|
292 |
strb.append("DROP ");
|
293 |
} |
294 |
strb.append("NOT NULL");
|
295 |
actions.add(strb.toString()); |
296 |
} |
297 |
|
298 |
if (attrOrg.getDefaultValue() != attrTrg.getDefaultValue()) {
|
299 |
if (attrTrg.getDefaultValue() == null) { |
300 |
// ALTER [ COLUMN ] column DROP DEFAULT
|
301 |
|
302 |
strb = new StringBuilder(); |
303 |
strb.append("ALTER COLUMN ");
|
304 |
strb.append(helper.escapeFieldName(attrTrg.getName())); |
305 |
strb.append(" DROP DEFAULT");
|
306 |
actions.add(strb.toString()); |
307 |
} else if (!attrTrg.getDefaultValue().equals( |
308 |
attrOrg.getDefaultValue())) { |
309 |
// ALTER [ COLUMN ] column DROP DEFAULT
|
310 |
|
311 |
strb = new StringBuilder(); |
312 |
strb.append("ALTER COLUMN ");
|
313 |
strb.append(helper.escapeFieldName(attrTrg.getName())); |
314 |
strb.append(" SET DEFAULT");
|
315 |
strb.append(helper.dalValueToJDBC(attrTrg, attrTrg |
316 |
.getDefaultValue())); |
317 |
actions.add(strb.toString()); |
318 |
} |
319 |
} |
320 |
|
321 |
return actions;
|
322 |
} |
323 |
|
324 |
protected void performUpdateTable(Connection conn, FeatureType original, |
325 |
FeatureType target) throws DataException {
|
326 |
|
327 |
/*
|
328 |
*
|
329 |
* ALTER TABLE [ ONLY ] name [ * ] action [, ... ]
|
330 |
*/
|
331 |
|
332 |
List<String> toDrop = new ArrayList<String>(); |
333 |
List<String> toAdd = new ArrayList<String>(); |
334 |
List<String> toAlter = new ArrayList<String>(); |
335 |
|
336 |
List<String> additionalStatement = new ArrayList<String>(); |
337 |
|
338 |
FeatureAttributeDescriptor attrOrg; |
339 |
FeatureAttributeDescriptor attrTrg; |
340 |
Iterator<FeatureAttributeDescriptor> attrs = FeatureTypeHelper.iterator(original);
|
341 |
while (attrs.hasNext()) {
|
342 |
attrOrg = (FeatureAttributeDescriptor) attrs.next(); |
343 |
attrTrg = target.getAttributeDescriptor(attrOrg.getName()); |
344 |
if (attrTrg == null) { |
345 |
toDrop.add(getSqlStatementDropField(attrOrg, |
346 |
additionalStatement)); |
347 |
} else {
|
348 |
toAlter.addAll(getSqlStatementAlterField(attrOrg, attrTrg,additionalStatement)); |
349 |
} |
350 |
|
351 |
} |
352 |
attrs = FeatureTypeHelper.iterator(target); |
353 |
while (attrs.hasNext()) {
|
354 |
attrTrg = (FeatureAttributeDescriptor) attrs.next(); |
355 |
if (original.getAttributeDescriptor(attrTrg.getName()) == null) { |
356 |
toAdd.add(getSqlStatementAddField(attrTrg, |
357 |
additionalStatement)); |
358 |
} |
359 |
} |
360 |
|
361 |
StringBuilder sqlb = new StringBuilder(); |
362 |
|
363 |
sqlb.append("ALTER TABLE ");
|
364 |
sqlb.append(getJDBCParameters().tableID()); |
365 |
sqlb.append(' ');
|
366 |
|
367 |
List<String> actions = new ArrayList<String>(); |
368 |
actions.addAll(toDrop); |
369 |
actions.addAll(toAlter); |
370 |
actions.addAll(toAdd); |
371 |
|
372 |
Iterator<String> it = actions.iterator(); |
373 |
while (it.hasNext()) {
|
374 |
if (it.next() == null) { |
375 |
it.remove(); |
376 |
} |
377 |
} |
378 |
|
379 |
it = additionalStatement.iterator(); |
380 |
while (it.hasNext()) {
|
381 |
if (it.next() == null) { |
382 |
it.remove(); |
383 |
} |
384 |
} |
385 |
|
386 |
if (actions.size() < 1) { |
387 |
return;
|
388 |
} |
389 |
|
390 |
helper.stringJoin(actions, ", ", sqlb);
|
391 |
|
392 |
String sql = sqlb.toString();
|
393 |
|
394 |
Statement st = null; |
395 |
|
396 |
try {
|
397 |
st = conn.createStatement(); |
398 |
} catch (SQLException e1) { |
399 |
throw new JDBCSQLException(e1); |
400 |
} |
401 |
try {
|
402 |
JDBCHelper.execute(st, sql); |
403 |
Iterator<String> iter = additionalStatement.iterator(); |
404 |
while (iter.hasNext()) {
|
405 |
sql = (String) iter.next();
|
406 |
JDBCHelper.execute(st, sql); |
407 |
} |
408 |
} catch (SQLException e1) { |
409 |
throw new JDBCExecuteSQLException(sql, e1); |
410 |
} finally {
|
411 |
try {
|
412 |
st.close(); |
413 |
} catch (Exception e) { |
414 |
logger.error("Exception closing statement", e);
|
415 |
} |
416 |
; |
417 |
} |
418 |
|
419 |
} |
420 |
|
421 |
|
422 |
public void perfomInsert(Connection conn, PreparedStatement insertSt, |
423 |
String sql, FeatureProvider feature, List<FeatureAttributeDescriptor> attributes) |
424 |
throws DataException {
|
425 |
|
426 |
try {
|
427 |
insertSt.clearParameters(); |
428 |
List<Object> values = new ArrayList<Object>(); |
429 |
addToListFeatureValues(feature, attributes, values); |
430 |
// FeatureAttributeDescriptor attr;
|
431 |
int j = 1; |
432 |
for (int i = 0; i < values.size(); i++) { |
433 |
insertSt.setObject(j, values.get(i)); |
434 |
j++; |
435 |
} |
436 |
if (logger.isDebugEnabled()) {
|
437 |
logger.debug("Executing insert. sql={} value={}", new Object[] { |
438 |
sql, values }); |
439 |
} |
440 |
try {
|
441 |
JDBCHelper.execute(insertSt, sql); |
442 |
} catch (SQLException e) { |
443 |
throw new JDBCExecutePreparedSQLException(sql, values, e); |
444 |
} |
445 |
|
446 |
} catch (Exception e1) { |
447 |
throw new JDBCExecuteSQLException(sql, e1); |
448 |
} |
449 |
} |
450 |
|
451 |
|
452 |
protected void prepareAttributeForUpdate(FeatureAttributeDescriptor attr, |
453 |
List<String> values) { |
454 |
values.add(helper.escapeFieldName(attr.getName()) + " = ?");
|
455 |
} |
456 |
|
457 |
protected void prepareAttributeForInsert(FeatureAttributeDescriptor attr, |
458 |
List<String> fields, List<String> values) { |
459 |
|
460 |
fields.add(helper.escapeFieldName(attr.getName())); |
461 |
values.add("?");
|
462 |
|
463 |
} |
464 |
|
465 |
|
466 |
protected void prepareSQLAndAttributeListForInsert(StringBuilder sqlb, |
467 |
List<FeatureAttributeDescriptor> attributes) throws DataException { |
468 |
/*
|
469 |
* INSERT INTO table [ ( column [, ...] ) ] { DEFAULT VALUES | VALUES (
|
470 |
* { expression | DEFAULT } [, ...] ) [, ...] | query } [ RETURNING * |
|
471 |
* output_expression [ AS output_name ] [, ...] ]
|
472 |
*/
|
473 |
|
474 |
sqlb.append("INSERT INTO ");
|
475 |
sqlb.append(getJDBCParameters().tableID()); |
476 |
|
477 |
sqlb.append(" (");
|
478 |
|
479 |
FeatureType type = this.getFeatureStore().getDefaultFeatureType();
|
480 |
|
481 |
List<String> fields = new ArrayList<String>(); |
482 |
List<String> values = new ArrayList<String>(); |
483 |
|
484 |
Iterator<FeatureAttributeDescriptor> iter = FeatureTypeHelper.iterator(type);
|
485 |
FeatureAttributeDescriptor attr; |
486 |
while (iter.hasNext()) {
|
487 |
attr = iter.next(); |
488 |
if (attr.isAutomatic() || attr.isReadOnly()) {
|
489 |
continue;
|
490 |
} |
491 |
attributes.add(attr); |
492 |
prepareAttributeForInsert(attr, fields, values); |
493 |
|
494 |
} |
495 |
if (attributes.size() < 1) { |
496 |
throw new RuntimeException("no fields to set"); |
497 |
} |
498 |
|
499 |
helper.stringJoin(fields, ", ", sqlb);
|
500 |
|
501 |
sqlb.append(") VALUES (");
|
502 |
helper.stringJoin(values, ", ", sqlb);
|
503 |
|
504 |
sqlb.append(") ");
|
505 |
|
506 |
} |
507 |
|
508 |
|
509 |
protected void performInserts(Connection conn, Iterator<FeatureProvider> inserteds) |
510 |
throws DataException {
|
511 |
|
512 |
StringBuilder sqlb = new StringBuilder(); |
513 |
List<FeatureAttributeDescriptor> attrs = new ArrayList<FeatureAttributeDescriptor>(); |
514 |
|
515 |
prepareSQLAndAttributeListForInsert(sqlb, attrs); |
516 |
|
517 |
String sql = sqlb.toString();
|
518 |
PreparedStatement st;
|
519 |
try {
|
520 |
st = conn.prepareStatement(sql); |
521 |
} catch (SQLException e) { |
522 |
throw new JDBCPreparingSQLException(sql, e); |
523 |
} |
524 |
try {
|
525 |
while (inserteds.hasNext()) {
|
526 |
perfomInsert(conn, st, sql, inserteds.next(), |
527 |
attrs); |
528 |
} |
529 |
} finally {
|
530 |
try {st.close();} catch (SQLException e) {logger.error("Error closing statement", e);}; |
531 |
} |
532 |
} |
533 |
|
534 |
protected void performUpdates(Connection conn, Iterator<FeatureProvider> updateds, |
535 |
List<FeatureAttributeDescriptor> pkAttributes) throws DataException { |
536 |
/*
|
537 |
* UPDATE [ ONLY ] table [ [ AS ] alias ] SET { column = { expression |
|
538 |
* DEFAULT } | ( column [, ...] ) = ( { expression | DEFAULT } [, ...] )
|
539 |
* } [, ...] [ FROM fromlist ] [ WHERE condition ] [ RETURNING * |
|
540 |
* output_expression [ AS output_name ] [, ...] ]
|
541 |
*/
|
542 |
|
543 |
if (pkAttributes.size() < 0) { |
544 |
throw new RuntimeException("Operation requires missing pk"); |
545 |
} |
546 |
|
547 |
// ************ Prepare SQL ****************
|
548 |
|
549 |
StringBuilder sqlb = new StringBuilder(); |
550 |
sqlb.append("UPDATE ");
|
551 |
sqlb.append(getJDBCParameters().tableID()); |
552 |
|
553 |
sqlb.append(" SET ");
|
554 |
|
555 |
List<String> values = new ArrayList<String>(); |
556 |
|
557 |
FeatureType type = this.getFeatureStore().getDefaultFeatureType();
|
558 |
|
559 |
Iterator<FeatureAttributeDescriptor> iter = FeatureTypeHelper.iterator(type);
|
560 |
FeatureAttributeDescriptor attr; |
561 |
List<FeatureAttributeDescriptor> updateAttrs = new ArrayList<FeatureAttributeDescriptor>(); |
562 |
while (iter.hasNext()) {
|
563 |
attr = iter.next(); |
564 |
if (attr.isPrimaryKey() || attr.isAutomatic() || attr.isReadOnly()) {
|
565 |
continue;
|
566 |
} |
567 |
updateAttrs.add(attr); |
568 |
prepareAttributeForUpdate(attr, values); |
569 |
|
570 |
} |
571 |
if (updateAttrs.size() < 1) { |
572 |
throw new RuntimeException("no fields to set"); |
573 |
} |
574 |
|
575 |
helper.stringJoin(values, ", ", sqlb);
|
576 |
|
577 |
sqlb.append(' ');
|
578 |
appendToSQLPreparedPkWhereClause(sqlb, pkAttributes); |
579 |
|
580 |
String sql = sqlb.toString();
|
581 |
// ************ Prepare SQL (end) ****************
|
582 |
|
583 |
updateAttrs.addAll(pkAttributes); |
584 |
|
585 |
executeUpdatePreparedStatement(conn, sql, updateAttrs, updateds); |
586 |
} |
587 |
|
588 |
|
589 |
|
590 |
protected TransactionalAction getPerformChangesAction(
|
591 |
final Iterator<FeatureReferenceProviderServices> deleteds, |
592 |
final Iterator<FeatureProvider> inserteds, |
593 |
final Iterator<FeatureProvider> updateds, |
594 |
final Iterator<FeatureTypeChanged> featureTypesChanged) { |
595 |
|
596 |
TransactionalAction action = new TransactionalAction() {
|
597 |
|
598 |
public Object action(Connection conn) throws DataException { |
599 |
|
600 |
if (featureTypesChanged.hasNext()) {
|
601 |
|
602 |
FeatureTypeChanged item = featureTypesChanged.next(); |
603 |
performUpdateTable(conn, item.getSource(), item.getTarget()); |
604 |
} |
605 |
|
606 |
List<FeatureAttributeDescriptor> pkAttributes = null; |
607 |
if (deleteds.hasNext() || updateds.hasNext()) {
|
608 |
pkAttributes = Arrays.asList(getFeatureStore()
|
609 |
.getDefaultFeatureType() |
610 |
.getPrimaryKey()); |
611 |
} |
612 |
|
613 |
if (deleteds.hasNext()) {
|
614 |
performDeletes(conn, deleteds, pkAttributes); |
615 |
} |
616 |
|
617 |
if (updateds.hasNext()) {
|
618 |
performUpdates(conn, updateds, pkAttributes); |
619 |
} |
620 |
|
621 |
if (inserteds.hasNext()) {
|
622 |
performInserts(conn, inserteds); |
623 |
} |
624 |
|
625 |
return null; |
626 |
} |
627 |
|
628 |
public boolean continueTransactionAllowed() { |
629 |
return false; |
630 |
} |
631 |
|
632 |
}; |
633 |
|
634 |
return action;
|
635 |
|
636 |
} |
637 |
|
638 |
@SuppressWarnings("unchecked") |
639 |
public void performChanges(Iterator deleteds, Iterator inserteds, |
640 |
Iterator updateds, Iterator featureTypesChanged) |
641 |
throws PerformEditingException {
|
642 |
|
643 |
boolean countChanged = deleteds.hasNext() || inserteds.hasNext();
|
644 |
|
645 |
try {
|
646 |
this.helper.doConnectionAction(getPerformChangesAction(deleteds,
|
647 |
inserteds, updateds, featureTypesChanged)); |
648 |
|
649 |
/*
|
650 |
* Get rules before initializing feature type
|
651 |
*/
|
652 |
FeatureRules old_rules = getFeatureStore().getDefaultFeatureType().getRules(); |
653 |
|
654 |
/*
|
655 |
* This initialization loses the feature type rules
|
656 |
*/
|
657 |
this.initFeatureType();
|
658 |
|
659 |
/*
|
660 |
* Get new feature type, clear rules and add
|
661 |
* the ones saved previously
|
662 |
*/
|
663 |
FeatureType ft = getFeatureStore().getDefaultFeatureType(); |
664 |
FeatureRules new_rules = ft.getRules(); |
665 |
new_rules.clear(); |
666 |
for (int i=0; i<old_rules.size(); i++) { |
667 |
new_rules.add(old_rules.getRule(i)); |
668 |
} |
669 |
// ===================================================
|
670 |
|
671 |
if (countChanged) {
|
672 |
resetCount(); |
673 |
} |
674 |
|
675 |
} catch (Exception e) { |
676 |
throw new PerformEditingException(this.getSourceId().toString(), e); |
677 |
} |
678 |
} |
679 |
|
680 |
|
681 |
public boolean allowWrite() { |
682 |
if (directSQLMode) {
|
683 |
return false; |
684 |
} |
685 |
|
686 |
FeatureType ft = null;
|
687 |
try {
|
688 |
ft = this.getFeatureStore().getDefaultFeatureType();
|
689 |
} catch (DataException e) {
|
690 |
logger.error("While getting default Feature Type", e);
|
691 |
} |
692 |
|
693 |
String[] storePK = getPK(ft); |
694 |
JDBCHelper helper = this.getHelper();
|
695 |
String[] dbPK = null; |
696 |
try {
|
697 |
Connection conn = helper.getConnection();
|
698 |
dbPK = helper.getPksFrom(conn, getJDBCParameters()); |
699 |
conn.close(); |
700 |
} catch (Exception exc) { |
701 |
logger.error("While getting PK from DB", exc);
|
702 |
return false; |
703 |
} |
704 |
return sameStrings(storePK, dbPK);
|
705 |
} |
706 |
|
707 |
private boolean sameStrings(String[] a, String[] b) { |
708 |
|
709 |
if (a==null || b==null || a.length!=b.length || a.length==0) { |
710 |
/*
|
711 |
* Must not be empty
|
712 |
*/
|
713 |
return false; |
714 |
} |
715 |
int len = a.length;
|
716 |
boolean found = false; |
717 |
/*
|
718 |
* Check same
|
719 |
*/
|
720 |
for (int ai=0; ai<len; ai++) { |
721 |
found = false;
|
722 |
for (int bi=0; bi<len; bi++) { |
723 |
if (b[bi].compareTo(a[ai]) == 0) { |
724 |
found = true;
|
725 |
break;
|
726 |
} |
727 |
} |
728 |
if (! found) {
|
729 |
return false; |
730 |
} |
731 |
} |
732 |
return true; |
733 |
} |
734 |
|
735 |
private String[] getPK(FeatureType ft) { |
736 |
|
737 |
List resp = new ArrayList(); |
738 |
FeatureAttributeDescriptor attr; |
739 |
Iterator<FeatureAttributeDescriptor> iter = FeatureTypeHelper.iterator(ft);
|
740 |
while (iter.hasNext()) {
|
741 |
attr = (FeatureAttributeDescriptor) iter.next(); |
742 |
if (attr.isPrimaryKey()) {
|
743 |
resp.add(attr.getName()); |
744 |
} |
745 |
} |
746 |
return (String[]) resp.toArray(new String[0]); |
747 |
} |
748 |
} |