1
|
/**
|
2
|
*
|
3
|
*/
|
4
|
package eu.etaxonomy.cdm.database;
|
5
|
|
6
|
import java.io.PrintWriter;
|
7
|
import java.net.URISyntaxException;
|
8
|
import java.sql.Connection;
|
9
|
import java.sql.DatabaseMetaData;
|
10
|
import java.sql.PreparedStatement;
|
11
|
import java.sql.ResultSet;
|
12
|
import java.sql.SQLException;
|
13
|
import java.sql.SQLFeatureNotSupportedException;
|
14
|
import java.util.Map;
|
15
|
|
16
|
import javax.sql.DataSource;
|
17
|
|
18
|
import org.apache.log4j.Logger;
|
19
|
import org.hibernate.cache.spi.RegionFactory;
|
20
|
import org.springframework.beans.factory.config.BeanDefinition;
|
21
|
|
22
|
import com.mchange.v2.c3p0.ComboPooledDataSource;
|
23
|
|
24
|
import eu.etaxonomy.cdm.config.CdmSourceException;
|
25
|
import eu.etaxonomy.cdm.model.metadata.CdmMetaDataPropertyName;
|
26
|
import eu.etaxonomy.cdm.persistence.hibernate.HibernateConfiguration;
|
27
|
|
28
|
/**
|
29
|
* This class is a wrapper class to wrap an {@link javax.sql.DataSource} to an
|
30
|
* {@link ICdmDataSource}. As the former is a very limited interface it is not possible
|
31
|
* to implement all methods of {@link ICdmDataSource}. However, the aim is
|
32
|
* to implement all those methods which are usually needed to work with a datasource
|
33
|
* which represents a connection to a database such as transaction handling and
|
34
|
* sending queries.
|
35
|
* Those methods which are not supported by this wrapper class will throw an xxx
|
36
|
* exception.
|
37
|
*
|
38
|
*
|
39
|
* @author a.mueller
|
40
|
*/
|
41
|
|
42
|
//FIXME this class replicates lots of code in CdmDataSourceBase, we may want to merge it
|
43
|
//in a common helper class to avoid redundant code
|
44
|
public class WrappedCdmDataSource implements ICdmDataSource {
|
45
|
private static final Logger logger = Logger.getLogger(WrappedCdmDataSource.class);
|
46
|
|
47
|
|
48
|
private final DataSource datasource;
|
49
|
|
50
|
private Connection connection;
|
51
|
|
52
|
|
53
|
public WrappedCdmDataSource(DataSource datasource) {
|
54
|
if (datasource == null){
|
55
|
throw new NullPointerException("datasource must not be null for WrappedCdmDataSource");
|
56
|
}
|
57
|
this.datasource = datasource;
|
58
|
}
|
59
|
|
60
|
/**
|
61
|
* {@inheritDoc}
|
62
|
*/
|
63
|
@Override
|
64
|
public Connection getConnection() throws SQLException {
|
65
|
if (this.connection == null){
|
66
|
this.connection = datasource.getConnection();
|
67
|
}
|
68
|
return this.connection;
|
69
|
}
|
70
|
|
71
|
@Override
|
72
|
public Connection getConnection(String username, String password) throws SQLException {
|
73
|
if (this.connection == null){
|
74
|
this.connection = datasource.getConnection(username, password);
|
75
|
}
|
76
|
return connection;
|
77
|
}
|
78
|
|
79
|
@Override
|
80
|
public PrintWriter getLogWriter() throws SQLException {
|
81
|
return datasource.getLogWriter();
|
82
|
}
|
83
|
|
84
|
@Override
|
85
|
public void setLogWriter(PrintWriter out) throws SQLException {
|
86
|
datasource.setLogWriter(out);
|
87
|
}
|
88
|
|
89
|
@Override
|
90
|
public void setLoginTimeout(int seconds) throws SQLException {
|
91
|
datasource.setLoginTimeout(seconds);
|
92
|
}
|
93
|
|
94
|
@Override
|
95
|
public int getLoginTimeout() throws SQLException {
|
96
|
return datasource.getLoginTimeout();
|
97
|
}
|
98
|
|
99
|
@Override
|
100
|
public java.util.logging.Logger getParentLogger() throws SQLFeatureNotSupportedException {
|
101
|
return datasource.getParentLogger();
|
102
|
}
|
103
|
|
104
|
@Override
|
105
|
public <T> T unwrap(Class<T> iface) throws SQLException {
|
106
|
return datasource.unwrap(iface);
|
107
|
}
|
108
|
|
109
|
@Override
|
110
|
public boolean isWrapperFor(Class<?> iface) throws SQLException {
|
111
|
return datasource.isWrapperFor(iface);
|
112
|
}
|
113
|
|
114
|
@Override
|
115
|
public String getName() {
|
116
|
throw new UnsupportedOperationException("getName() not supported by WrappedCdmDataSource");
|
117
|
}
|
118
|
|
119
|
@Override
|
120
|
public void setName(String name) {
|
121
|
throw new UnsupportedOperationException("setName(String) not supported by WrappedCdmDataSource");
|
122
|
}
|
123
|
|
124
|
@Override
|
125
|
public String getServer() {
|
126
|
//TODO we may want to use client info from connection here
|
127
|
throw new UnsupportedOperationException("getServer() not supported by WrappedCdmDataSource");
|
128
|
}
|
129
|
|
130
|
@Override
|
131
|
public void setServer(String server) {
|
132
|
throw new UnsupportedOperationException("setServer() not supported by WrappedCdmDataSource");
|
133
|
}
|
134
|
|
135
|
@Override
|
136
|
public int getPort() {
|
137
|
//TODO we may want to use client info from connection here
|
138
|
throw new UnsupportedOperationException("getPort() not supported by WrappedCdmDataSource");
|
139
|
}
|
140
|
|
141
|
@Override
|
142
|
public void setPort(int port) {
|
143
|
throw new UnsupportedOperationException("setPort(int) not supported by WrappedCdmDataSource");
|
144
|
}
|
145
|
|
146
|
@Override
|
147
|
public String getDbSchemaVersion() throws CdmSourceException {
|
148
|
try {
|
149
|
return (String)getSingleValue(CdmMetaDataPropertyName.DB_SCHEMA_VERSION.getSqlQuery());
|
150
|
} catch (SQLException e) {
|
151
|
try {
|
152
|
return (String)getSingleValue(CdmMetaDataPropertyName.DB_SCHEMA_VERSION.getSqlQueryOld());
|
153
|
} catch (SQLException e1) {
|
154
|
throw new CdmSourceException(e1.getMessage());
|
155
|
}
|
156
|
}
|
157
|
}
|
158
|
|
159
|
@Override
|
160
|
public boolean isDbEmpty() throws CdmSourceException {
|
161
|
// Any CDM DB should have a schema version
|
162
|
String dbSchemaVersion = getDbSchemaVersion();
|
163
|
return (dbSchemaVersion == null || dbSchemaVersion.equals(""));
|
164
|
}
|
165
|
|
166
|
@Override
|
167
|
public boolean checkConnection() throws CdmSourceException {
|
168
|
try {
|
169
|
return testConnection();
|
170
|
} catch (ClassNotFoundException e) {
|
171
|
throw new CdmSourceException(e.getMessage());
|
172
|
} catch (SQLException e) {
|
173
|
throw new CdmSourceException(e.getMessage());
|
174
|
}
|
175
|
}
|
176
|
|
177
|
@Override
|
178
|
public String getConnectionMessage() {
|
179
|
try {
|
180
|
Connection connection = getConnection();
|
181
|
String message = "Connecting to datasource " + connection.getSchema() + ".";
|
182
|
return message;
|
183
|
} catch (SQLException e) {
|
184
|
throw new RuntimeException(e);
|
185
|
}
|
186
|
}
|
187
|
|
188
|
@Override
|
189
|
public void closeOpenConnections() {
|
190
|
try {
|
191
|
if(connection != null && !connection.isClosed()){
|
192
|
connection.close();
|
193
|
connection = null;
|
194
|
}
|
195
|
} catch (SQLException e) {
|
196
|
logger.error("Error closing the connection");
|
197
|
}
|
198
|
}
|
199
|
|
200
|
@Override
|
201
|
public Map<CdmMetaDataPropertyName, String> getMetaDataMap() throws CdmSourceException {
|
202
|
//TODO is it possible/required to build a meta data map here?
|
203
|
throw new UnsupportedOperationException("getMetaDataMap() not supported by WrappedCdmDataSource");
|
204
|
}
|
205
|
|
206
|
@Override
|
207
|
public BeanDefinition getDatasourceBean() {
|
208
|
//TODO is it possible/required to build a datasource bean here?
|
209
|
throw new UnsupportedOperationException("getDatasourceBean() not supported by WrappedCdmDataSource");
|
210
|
}
|
211
|
|
212
|
@Override
|
213
|
public BeanDefinition getHibernatePropertiesBean(DbSchemaValidation hbm2dll) {
|
214
|
//TODO is it possible/required to build a properties bean here?
|
215
|
throw new UnsupportedOperationException("getHibernatePropertiesBean() not supported by WrappedCdmDataSource");
|
216
|
}
|
217
|
|
218
|
@Override
|
219
|
@Deprecated
|
220
|
public BeanDefinition getHibernatePropertiesBean(DbSchemaValidation hbm2dll,
|
221
|
Boolean showSql, Boolean formatSql, Boolean registerSearchListener,
|
222
|
Class<? extends RegionFactory> cacheProviderClass) {
|
223
|
//TODO is it possible/required to build a properties bean here?
|
224
|
throw new UnsupportedOperationException("getHibernatePropertiesBean() not supported by WrappedCdmDataSource");
|
225
|
}
|
226
|
|
227
|
/**
|
228
|
* {@inheritDoc}
|
229
|
*/
|
230
|
@Override
|
231
|
public BeanDefinition getHibernatePropertiesBean(DbSchemaValidation hbm2dll,
|
232
|
HibernateConfiguration hibernateConfig) {
|
233
|
//TODO is it possible/required to build a properties bean here?
|
234
|
throw new UnsupportedOperationException("getHibernatePropertiesBean() not supported by WrappedCdmDataSource");
|
235
|
}
|
236
|
|
237
|
@Override
|
238
|
public String getFilePath() {
|
239
|
throw new UnsupportedOperationException("getFilePath() not supported by WrappedCdmDataSource");
|
240
|
}
|
241
|
|
242
|
@Override
|
243
|
public H2Mode getMode() {
|
244
|
throw new UnsupportedOperationException("getMode() not supported by WrappedCdmDataSource");
|
245
|
}
|
246
|
|
247
|
@Override
|
248
|
public String getUsername() {
|
249
|
//TODO maybe this can be implemented by connection meta data
|
250
|
throw new UnsupportedOperationException("getUsername() not supported by WrappedCdmDataSource");
|
251
|
}
|
252
|
|
253
|
@Override
|
254
|
public String getPassword() {
|
255
|
throw new UnsupportedOperationException("getPassword() not supported by WrappedCdmDataSource");
|
256
|
}
|
257
|
|
258
|
@Override
|
259
|
public String getDatabase() {
|
260
|
if(datasource instanceof ComboPooledDataSource) {
|
261
|
String jdbcUrl = ((ComboPooledDataSource)datasource).getJdbcUrl();
|
262
|
try {
|
263
|
return getDatabaseFrom(jdbcUrl);
|
264
|
} catch (URISyntaxException e) {
|
265
|
throw new RuntimeException(e);
|
266
|
}
|
267
|
} else {
|
268
|
throw new UnsupportedOperationException("getDatabase() not implemented for " + datasource.getClass() + " in WrappedCdmDataSource");
|
269
|
}
|
270
|
}
|
271
|
|
272
|
/**
|
273
|
* @param dbType
|
274
|
* @param jdbcUrl
|
275
|
* @return
|
276
|
* @throws URISyntaxException
|
277
|
*/
|
278
|
private String getDatabaseFrom(String jdbcUrl) throws URISyntaxException {
|
279
|
DatabaseTypeEnum type = DatabaseTypeEnum.byConnectionString(jdbcUrl);
|
280
|
if (type == null){
|
281
|
return null;
|
282
|
}else{
|
283
|
String dbName = type.getDatabaseType().getDatabaseNameByConnectionString(jdbcUrl);
|
284
|
return dbName;
|
285
|
}
|
286
|
}
|
287
|
|
288
|
@Override
|
289
|
public void setMode(H2Mode h2Mode) {
|
290
|
throw new UnsupportedOperationException("setMode(H2Mode) not supported by WrappedCdmDataSource");
|
291
|
}
|
292
|
|
293
|
@Override
|
294
|
public void setUsername(String username) {
|
295
|
throw new UnsupportedOperationException("setUsername(String) not supported by WrappedCdmDataSource");
|
296
|
}
|
297
|
|
298
|
@Override
|
299
|
public void setPassword(String password) {
|
300
|
throw new UnsupportedOperationException("setPassword(String) not supported by WrappedCdmDataSource");
|
301
|
}
|
302
|
|
303
|
@Override
|
304
|
public void setDatabase(String database) {
|
305
|
throw new UnsupportedOperationException("setDatabase(String) not supported by WrappedCdmDataSource");
|
306
|
}
|
307
|
|
308
|
@Override
|
309
|
public DatabaseTypeEnum getDatabaseType() {
|
310
|
if (this.datasource instanceof ICdmDataSource){
|
311
|
return ((ICdmDataSource)this.datasource).getDatabaseType();
|
312
|
}
|
313
|
|
314
|
try {
|
315
|
getConnection();
|
316
|
} catch (SQLException e1) {
|
317
|
throw new RuntimeException("SQL Exception while trying to establish connection to datasource");
|
318
|
}
|
319
|
|
320
|
String driverName = null;
|
321
|
if (connection != null){
|
322
|
DatabaseMetaData metaData = null;
|
323
|
try {
|
324
|
metaData = connection.getMetaData();
|
325
|
} catch (SQLException e) {
|
326
|
throw new RuntimeException("SQL Exception while trying to read datasource metadata");
|
327
|
}
|
328
|
|
329
|
try {
|
330
|
driverName = metaData != null ? metaData.getDriverName() : null;
|
331
|
} catch (SQLException e) {
|
332
|
//throw exception at end
|
333
|
}
|
334
|
if (metaData != null){
|
335
|
DatabaseTypeEnum type = DatabaseTypeEnum.byDatabaseMetaData(metaData);
|
336
|
if (type != null){
|
337
|
return type;
|
338
|
}
|
339
|
}
|
340
|
throw new IllegalStateException("datasource type (MySQL, SQL Server, ...) could not be retrieved from generic datasource");
|
341
|
|
342
|
}
|
343
|
throw new IllegalStateException("datasource type (MySQL, SQL Server, ...) could not be retrieved from generic datasource");
|
344
|
}
|
345
|
|
346
|
@Override
|
347
|
public boolean testConnection() throws ClassNotFoundException, SQLException {
|
348
|
return getConnection() != null;
|
349
|
}
|
350
|
|
351
|
@Override
|
352
|
public ResultSet executeQuery(String query) throws SQLException {
|
353
|
PreparedStatement a = getConnection().prepareStatement(query);
|
354
|
return a.executeQuery();
|
355
|
}
|
356
|
|
357
|
@Override
|
358
|
public int executeUpdate(String sqlUpdate) throws SQLException {
|
359
|
PreparedStatement a = getConnection().prepareStatement(sqlUpdate);
|
360
|
return a.executeUpdate();
|
361
|
}
|
362
|
|
363
|
@Override
|
364
|
public void startTransaction() {
|
365
|
try {
|
366
|
Connection connection = getConnection();
|
367
|
this.connection = connection;
|
368
|
connection.setAutoCommit(false);
|
369
|
} catch (SQLException e) {
|
370
|
throw new RuntimeException(e);
|
371
|
}
|
372
|
}
|
373
|
|
374
|
@Override
|
375
|
public void commitTransaction() throws SQLException {
|
376
|
getConnection().commit();
|
377
|
}
|
378
|
|
379
|
@Override
|
380
|
public void rollback() throws SQLException {
|
381
|
getConnection().rollback();
|
382
|
}
|
383
|
|
384
|
@Override
|
385
|
public Object getSingleValue(String query) throws SQLException {
|
386
|
ResultSet rs = this.executeQuery(query);
|
387
|
if (rs.next()){
|
388
|
int count = rs.getMetaData().getColumnCount();
|
389
|
if (count > 0){
|
390
|
return rs.getObject(1);
|
391
|
}
|
392
|
}
|
393
|
return null;
|
394
|
}
|
395
|
|
396
|
@Override
|
397
|
public DatabaseMetaData getMetaData() {
|
398
|
try {
|
399
|
return getConnection().getMetaData();
|
400
|
} catch (SQLException e) {
|
401
|
throw new RuntimeException(e);
|
402
|
}
|
403
|
}
|
404
|
|
405
|
}
|