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 / jdbc2 / spi / operations / PerformChangesOperation.java @ 43020
History | View | Annotate | Download (11.1 KB)
1 |
package org.gvsig.fmap.dal.store.jdbc2.spi.operations; |
---|---|
2 |
|
3 |
import java.sql.Connection; |
4 |
import java.sql.PreparedStatement; |
5 |
import java.sql.SQLException; |
6 |
import java.sql.Statement; |
7 |
import java.util.Iterator; |
8 |
import org.gvsig.fmap.dal.DataTypes; |
9 |
import org.gvsig.fmap.dal.exception.DataException; |
10 |
import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
11 |
import org.gvsig.fmap.dal.feature.FeatureType; |
12 |
import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
13 |
import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
14 |
import org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider; |
15 |
import org.gvsig.fmap.dal.feature.spi.SQLBuilderBase; |
16 |
import org.gvsig.fmap.dal.store.jdbc2.JDBCHelper; |
17 |
import org.gvsig.fmap.dal.store.jdbc.exception.JDBCExecuteSQLException; |
18 |
import org.gvsig.fmap.dal.store.jdbc.exception.JDBCSQLException; |
19 |
import org.gvsig.fmap.dal.store.jdbc.exception.JDBCUpdateWithoutChangesException; |
20 |
import org.gvsig.fmap.dal.store.jdbc2.spi.JDBCSQLBuilderBase; |
21 |
import org.gvsig.fmap.dal.store.jdbc2.JDBCUtils; |
22 |
|
23 |
public class PerformChangesOperation extends AbstractConnectionOperation { |
24 |
|
25 |
private final String dbName; |
26 |
private final String schemaName; |
27 |
private final String tableName; |
28 |
private final FeatureType featureType; |
29 |
private final Iterator<FeatureReferenceProviderServices> deleteds; |
30 |
private final Iterator<FeatureStoreProvider.FeatureTypeChanged> featureTypesChanged; |
31 |
private final Iterator<FeatureProvider> updateds; |
32 |
private final Iterator<FeatureProvider> inserteds; |
33 |
|
34 |
private boolean typeChanged = false; |
35 |
|
36 |
public PerformChangesOperation(JDBCHelper helper) {
|
37 |
this(helper, null, null, null, null, null, null, null, null); |
38 |
} |
39 |
|
40 |
public PerformChangesOperation(JDBCHelper helper,
|
41 |
String dbName,
|
42 |
String schemaName,
|
43 |
String tableName,
|
44 |
FeatureType featureType, |
45 |
Iterator<FeatureReferenceProviderServices> deleteds,
|
46 |
Iterator<FeatureProvider> inserteds,
|
47 |
Iterator<FeatureProvider> updateds,
|
48 |
Iterator<FeatureStoreProvider.FeatureTypeChanged> featureTypesChanged) {
|
49 |
super(helper);
|
50 |
this.dbName = dbName;
|
51 |
this.deleteds = deleteds;
|
52 |
this.inserteds = inserteds;
|
53 |
this.updateds = updateds;
|
54 |
this.schemaName = schemaName;
|
55 |
this.tableName = tableName;
|
56 |
this.featureType = featureType;
|
57 |
this.featureTypesChanged = featureTypesChanged;
|
58 |
} |
59 |
|
60 |
public boolean isTypeChanged() { |
61 |
return typeChanged;
|
62 |
} |
63 |
|
64 |
@Override
|
65 |
public final Object perform(Connection conn) throws DataException { |
66 |
if (featureTypesChanged.hasNext()) {
|
67 |
FeatureStoreProvider.FeatureTypeChanged item = featureTypesChanged.next(); |
68 |
this.performUpdateTable(conn, tableName, item.getSource(), item.getTarget());
|
69 |
typeChanged = true;
|
70 |
} else {
|
71 |
typeChanged = false;
|
72 |
} |
73 |
if (deleteds.hasNext()) {
|
74 |
performDeletes(conn, dbName, schemaName, tableName, featureType, deleteds); |
75 |
} |
76 |
if (updateds.hasNext()) {
|
77 |
performUpdates(conn, dbName, schemaName, tableName, featureType, updateds); |
78 |
} |
79 |
if (inserteds.hasNext()) {
|
80 |
performInserts(conn, dbName, schemaName, tableName, featureType, inserteds); |
81 |
} |
82 |
return true; |
83 |
} |
84 |
|
85 |
public void performDeletes(Connection conn, |
86 |
String database,
|
87 |
String schema,
|
88 |
String table,
|
89 |
FeatureType type, |
90 |
Iterator<FeatureReferenceProviderServices> deleteds) throws DataException { |
91 |
|
92 |
JDBCSQLBuilderBase sqlbuilder = this.createSQLBuilder();
|
93 |
sqlbuilder.delete().table().database(database).schema(schema).name(table); |
94 |
for (FeatureAttributeDescriptor attr : type) {
|
95 |
if (attr.isPrimaryKey()) {
|
96 |
sqlbuilder.delete().where().and( |
97 |
sqlbuilder.eq( |
98 |
sqlbuilder.column(attr.getName()), |
99 |
sqlbuilder.parameter(attr.getName()).as_variable() |
100 |
) |
101 |
); |
102 |
} |
103 |
} |
104 |
if (!sqlbuilder.delete().has_where() ) {
|
105 |
throw new RuntimeException("Operation requires missing pk"); |
106 |
} |
107 |
|
108 |
PreparedStatement st = null; |
109 |
String sql = sqlbuilder.delete().toString();
|
110 |
try {
|
111 |
st = conn.prepareStatement(sql); |
112 |
while (deleteds.hasNext()) {
|
113 |
FeatureProvider featureProvider = (FeatureProvider) deleteds.next(); |
114 |
sqlbuilder.setParameters(st, featureProvider); |
115 |
int nAffected = JDBCUtils.executeUpdate(st,sql);
|
116 |
if (nAffected == 0) { |
117 |
throw new JDBCUpdateWithoutChangesException( |
118 |
sqlbuilder.delete().toString(), |
119 |
null
|
120 |
); |
121 |
} |
122 |
if (nAffected > 1) { |
123 |
logger.warn("Remove statement affectst to {} rows ( {} )",
|
124 |
nAffected, sql |
125 |
); |
126 |
} |
127 |
} |
128 |
} catch (SQLException e) { |
129 |
throw new JDBCSQLException(e); |
130 |
} finally {
|
131 |
JDBCUtils.closeQuietly(st); |
132 |
} |
133 |
} |
134 |
|
135 |
public void performInserts(Connection conn, |
136 |
String database,
|
137 |
String schema,
|
138 |
String table,
|
139 |
FeatureType type, |
140 |
Iterator<FeatureProvider> inserteds) throws DataException { |
141 |
JDBCSQLBuilderBase sqlbuilder = createSQLBuilder(); |
142 |
|
143 |
sqlbuilder.insert().table().database(database).schema(schema).name(table); |
144 |
for (FeatureAttributeDescriptor attr : type) {
|
145 |
if (attr.getType() == DataTypes.GEOMETRY) {
|
146 |
sqlbuilder.insert().column().name(attr.getName()).with_value( |
147 |
sqlbuilder.parameter(attr.getName()).as_geometry().srs( |
148 |
sqlbuilder.parameter(attr.getSRS()).as_constant() |
149 |
) |
150 |
); |
151 |
} else {
|
152 |
sqlbuilder.insert().column().name(attr.getName()).with_value( |
153 |
sqlbuilder.parameter(attr.getName()) |
154 |
); |
155 |
} |
156 |
} |
157 |
|
158 |
PreparedStatement st;
|
159 |
String sql = sqlbuilder.insert().toString();
|
160 |
try {
|
161 |
st = conn.prepareStatement(sql); |
162 |
while (inserteds.hasNext()) {
|
163 |
FeatureProvider feature = inserteds.next(); |
164 |
sqlbuilder.setParameters(st, feature); |
165 |
if (JDBCUtils.executeUpdate(st,sql) == 0) { |
166 |
throw new JDBCExecuteSQLException( |
167 |
sqlbuilder.insert().toString(), |
168 |
null
|
169 |
); |
170 |
} |
171 |
|
172 |
} |
173 |
} catch (JDBCExecuteSQLException ex) {
|
174 |
throw ex;
|
175 |
} catch (Exception ex) { |
176 |
throw new JDBCExecuteSQLException(sql,ex); |
177 |
} |
178 |
} |
179 |
|
180 |
public void performUpdates(Connection conn, |
181 |
String database,
|
182 |
String schema,
|
183 |
String table,
|
184 |
FeatureType type, |
185 |
Iterator<FeatureProvider> updateds) throws DataException { |
186 |
|
187 |
JDBCSQLBuilderBase sqlbuilder = this.createSQLBuilder();
|
188 |
sqlbuilder.update().table().database(database).schema(schema).name(table); |
189 |
for (FeatureAttributeDescriptor attr : type) {
|
190 |
if (attr.isPrimaryKey()) {
|
191 |
sqlbuilder.update().where().and( |
192 |
sqlbuilder.eq( |
193 |
sqlbuilder.column(attr.getName()), |
194 |
sqlbuilder.parameter(attr.getName()).as_variable() |
195 |
) |
196 |
); |
197 |
} if ( ! attr.isAutomatic() && !attr.isReadOnly() ) {
|
198 |
if (attr.getType() == DataTypes.GEOMETRY) {
|
199 |
sqlbuilder.update().column().name(attr.getName()).with_value( |
200 |
sqlbuilder.parameter(attr.getName()).as_geometry().srs( |
201 |
sqlbuilder.parameter(attr.getSRS()).as_constant() |
202 |
) |
203 |
); |
204 |
} else {
|
205 |
sqlbuilder.update().column().name(attr.getName()).with_value( |
206 |
sqlbuilder.parameter(attr.getName()).as_variable() |
207 |
); |
208 |
} |
209 |
} |
210 |
} |
211 |
if (!sqlbuilder.update().has_where() ) {
|
212 |
throw new RuntimeException("Operation requires missing pk"); |
213 |
} |
214 |
|
215 |
PreparedStatement st = null; |
216 |
String sql = sqlbuilder.update().toString();
|
217 |
try {
|
218 |
st = conn.prepareStatement(sql); |
219 |
while (updateds.hasNext()) {
|
220 |
FeatureProvider featureProvider = (FeatureProvider) updateds.next(); |
221 |
sqlbuilder.setParameters(st, featureProvider); |
222 |
if (JDBCUtils.executeUpdate(st,sql) == 0) { |
223 |
throw new JDBCUpdateWithoutChangesException(sql,null); |
224 |
} |
225 |
} |
226 |
} catch (SQLException e) { |
227 |
throw new JDBCSQLException(e); |
228 |
} finally {
|
229 |
JDBCUtils.closeQuietly(st); |
230 |
} |
231 |
} |
232 |
|
233 |
public void performUpdateTable(Connection conn, |
234 |
String table,
|
235 |
FeatureType original, |
236 |
FeatureType target) throws DataException {
|
237 |
|
238 |
SQLBuilderBase sqlbuilder = createSQLBuilder(); |
239 |
sqlbuilder.update().table().name(table); |
240 |
|
241 |
for (FeatureAttributeDescriptor attrOrgiginal : original) {
|
242 |
FeatureAttributeDescriptor attrTarget = target.getAttributeDescriptor( |
243 |
attrOrgiginal.getName() |
244 |
); |
245 |
if (attrTarget == null) { |
246 |
sqlbuilder.alter_table().drop_column(attrOrgiginal.getName()); |
247 |
} else {
|
248 |
sqlbuilder.alter_table().alter_column( |
249 |
attrTarget.getName(), |
250 |
attrTarget.getType(), |
251 |
attrTarget.getPrecision(), |
252 |
attrTarget.getSize(), |
253 |
attrTarget.isPrimaryKey(), |
254 |
attrTarget.allowNull(), |
255 |
attrTarget.isAutomatic(), |
256 |
attrTarget.getDefaultValue() |
257 |
); |
258 |
} |
259 |
} |
260 |
for (FeatureAttributeDescriptor attrTarget : target) {
|
261 |
if (original.getAttributeDescriptor(attrTarget.getName()) == null) { |
262 |
sqlbuilder.alter_table().add_column( |
263 |
attrTarget.getName(), |
264 |
attrTarget.getType(), |
265 |
attrTarget.getPrecision(), |
266 |
attrTarget.getSize(), |
267 |
attrTarget.isPrimaryKey(), |
268 |
attrTarget.allowNull(), |
269 |
attrTarget.isAutomatic(), |
270 |
attrTarget.getDefaultValue() |
271 |
); |
272 |
} |
273 |
} |
274 |
Statement st = null; |
275 |
try {
|
276 |
st = conn.createStatement(); |
277 |
for (String sql : sqlbuilder.alter_table().toStrings()) { |
278 |
JDBCUtils.execute(st, sql); |
279 |
} |
280 |
} catch (SQLException e) { |
281 |
throw new JDBCSQLException(e); |
282 |
} finally {
|
283 |
JDBCUtils.closeQuietly(st); |
284 |
} |
285 |
} |
286 |
|
287 |
} |