|
1
|
/**
|
|
2
|
* Copyright (C) 2009 EDIT
|
|
3
|
* European Distributed Institute of Taxonomy
|
|
4
|
* http://www.e-taxonomy.eu
|
|
5
|
*
|
|
6
|
* The contents of this file are subject to the Mozilla Public License Version 1.1
|
|
7
|
* See LICENSE.TXT at the top of this package for the full license terms.
|
|
8
|
*/
|
|
9
|
|
|
10
|
package eu.etaxonomy.cdm.io.common;
|
|
11
|
|
|
12
|
/*
|
|
13
|
* Created on 14.05.2005
|
|
14
|
* @author Andreas M�ller
|
|
15
|
* Updated 20.08.2006
|
|
16
|
*/
|
|
17
|
|
|
18
|
|
|
19
|
import java.sql.*;
|
|
20
|
import java.io.*;
|
|
21
|
|
|
22
|
import javax.mail.MethodNotSupportedException;
|
|
23
|
|
|
24
|
import org.apache.log4j.Logger;
|
|
25
|
|
|
26
|
import eu.etaxonomy.cdm.database.ICdmDataSource;
|
|
27
|
|
|
28
|
|
|
29
|
/**
|
|
30
|
*
|
|
31
|
* Creates Cursors from extern relational DB.
|
|
32
|
* Used only for developpers convienence hence undocumented.
|
|
33
|
* You may create input cursors in any other way you want
|
|
34
|
* @author Andreas Müller
|
|
35
|
*/
|
|
36
|
public class Source {
|
|
37
|
static Logger logger = Logger.getLogger(Source.class);
|
|
38
|
|
|
39
|
/* ************ Constants **************************************/
|
|
40
|
//Mode
|
|
41
|
private final static boolean DEBUG_MODE = false;
|
|
42
|
private final static boolean DEBUG_LOG_WRITER = false;
|
|
43
|
|
|
44
|
//DB info
|
|
45
|
// public final static String SQL_SERVER_2000 = "SQLServer2000";
|
|
46
|
public final static String SQL_SERVER_2005 = "SQLServer2005";
|
|
47
|
public final static String SQL_SERVER_2008 = "SQLServer2008";
|
|
48
|
public final static String ACCESS = "Access";
|
|
49
|
public final static String EXCEL = "Excel";
|
|
50
|
public final static String ODDBC = "ODBC";
|
|
51
|
public final static String ORACLE = "Oracle";
|
|
52
|
public final static String DB2 = "DB2";
|
|
53
|
|
|
54
|
//coursor mode
|
|
55
|
public final static String SELECT_DIRECT = "direct";
|
|
56
|
public final static String SELECT_CURSOR = "cursor";
|
|
57
|
|
|
58
|
//driver class
|
|
59
|
// private static String clsSQLServer2000 = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
|
|
60
|
private static String clsSQLServer2005 = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
|
|
61
|
private static String clsSQLServer2008 = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
|
|
62
|
private static String clsODBC = "sun.jdbc.odbc.JdbcOdbcDriver";
|
|
63
|
private static String clsOracle = "oracle.jdbc.driver.OracleDriver";
|
|
64
|
private static String clsDB2 = "COM.ibm.db2.jdbc.net.DB2Driver";
|
|
65
|
private static String clsSQLServerDdtek = "com.ddtek.jdbc.sqlserver.SQLServerDriver";
|
|
66
|
private static String clsDefault = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
|
|
67
|
|
|
68
|
//url
|
|
69
|
// private static String urlSQLServer = "jdbc:microsoft:sqlserver://";
|
|
70
|
private static String urlSQLServer2005 = "jdbc:sqlserver://";
|
|
71
|
private static String urlSQLServer2008 = "jdbc:sqlserver://";
|
|
72
|
private static String urlDB2 = "jdbc:db2://";
|
|
73
|
private static String urlOracle = "jdbc:oracle:thin:@:1243:";
|
|
74
|
private static String urlDataDirectSQLServer = "jdbc:datadirect:sqlserver://";
|
|
75
|
private static String urlODBC = "jdbc:odbc:";
|
|
76
|
// FIXME this default is not acceptable
|
|
77
|
private static String urlDefault = "jdbc:microsoft:sqlserver://LAPI:1433;DatabaseName=studienarbeit;SelectMethod=direct";
|
|
78
|
|
|
79
|
|
|
80
|
/* *************** VARIABLES *******************************/
|
|
81
|
private Connection mConn;
|
|
82
|
private Statement mStmt;
|
|
83
|
private String mQuery;
|
|
84
|
private String mUrl = null;
|
|
85
|
private String mDb = null;
|
|
86
|
private int mPort = 1433; //default port TODO 2 derzeit nur f�r SQLServer, m�sste auch f�r andere Datenbanken umgesetzt werden
|
|
87
|
private String mDbms = null;
|
|
88
|
private String mServer = null;
|
|
89
|
private boolean isCursor;
|
|
90
|
private boolean connExist = false; //does a Connection exist?
|
|
91
|
private String mUserName;
|
|
92
|
private String mPwd;
|
|
93
|
|
|
94
|
private boolean doLog = false;
|
|
95
|
|
|
96
|
|
|
97
|
private static String userNameDefault = "sa"; //default user
|
|
98
|
private static String pwdDefault = "sa"; //default PWD
|
|
99
|
|
|
100
|
|
|
101
|
/* ******************** CONSTRUCTORS **********************************/
|
|
102
|
|
|
103
|
|
|
104
|
/**
|
|
105
|
* Creates a source and sets the according variables
|
|
106
|
* @param dbms name of database management system (e.g. "SQLServer", "Access", "Excel", "Oracle"
|
|
107
|
* @param server name of server, if dbms is ODBC, this must be the ODBC name
|
|
108
|
* @param db name of database
|
|
109
|
*/
|
|
110
|
public Source(String dbms, String server, String db){
|
|
111
|
mDbms = dbms;
|
|
112
|
mServer = server;
|
|
113
|
mDb = db;
|
|
114
|
this.mPwd = pwdDefault;
|
|
115
|
this.mUserName = userNameDefault;
|
|
116
|
}
|
|
117
|
|
|
118
|
/**
|
|
119
|
* Creates a source and sets the query string
|
|
120
|
* @param dbms name of database management system (e.g. "SQLServer", "Access", "Excel", "Oracle"
|
|
121
|
* @param server name of server, if dbms is ODBC, this must be the ODBC name
|
|
122
|
* @param db name of database
|
|
123
|
* @param query the query
|
|
124
|
*/
|
|
125
|
public Source(String dbms, String server, String db, String query){
|
|
126
|
this(dbms, server, db);
|
|
127
|
this.setQuery(query);
|
|
128
|
}
|
|
129
|
|
|
130
|
/**
|
|
131
|
* Creates a source and sets the parameter.
|
|
132
|
* @param cursor access mode, if true 'cursor', if false 'direct'
|
|
133
|
*/
|
|
134
|
public Source(String dbms, String server, String db, boolean cursor) {
|
|
135
|
this(dbms, server, db);
|
|
136
|
isCursor = cursor;
|
|
137
|
}
|
|
138
|
|
|
139
|
|
|
140
|
/**
|
|
141
|
* Creates a source and sets the parameter. If port is -1 the databases default port is used.
|
|
142
|
* @param dbms name of database management system (e.g. "SQLServer", "Access", "Excel", "Oracle"
|
|
143
|
* @param server name of server, if dbms is ODBC, this must be the ODBC name
|
|
144
|
* @param db name of database
|
|
145
|
* @param port the databases port (-1: use default port)
|
|
146
|
*/
|
|
147
|
public Source(String dbms, String server, String db, int port) {
|
|
148
|
this(dbms, server, db);
|
|
149
|
if (port != -1){
|
|
150
|
this.setPort(port);
|
|
151
|
};
|
|
152
|
}
|
|
153
|
|
|
154
|
/**
|
|
155
|
* Creates a source with parameters of a ICdmDataSource instance
|
|
156
|
*
|
|
157
|
* @param cdmDataSource
|
|
158
|
*/
|
|
159
|
public Source(ICdmDataSource cdmDataSource){
|
|
160
|
mDbms = cdmDataSource.getDatabaseType().getName();
|
|
161
|
mServer = cdmDataSource.getServer();
|
|
162
|
mDb = cdmDataSource.getDatabase();
|
|
163
|
mPwd = cdmDataSource.getPassword();
|
|
164
|
mUserName = cdmDataSource.getUsername();
|
|
165
|
this.setPort(cdmDataSource.getPort());
|
|
166
|
}
|
|
167
|
|
|
168
|
//********************* METHODS *****************************************************/
|
|
169
|
|
|
170
|
//******* RESULTSETS *******************//
|
|
171
|
/**
|
|
172
|
* Returns the Resultset for query 'query'.
|
|
173
|
* Does not change the Sources query-string!!
|
|
174
|
* @return Resultset for the query.
|
|
175
|
*/
|
|
176
|
public ResultSet getResultSet (String query){
|
|
177
|
ResultSet rs;
|
|
178
|
try {
|
|
179
|
this.getConnection(); //establish connection
|
|
180
|
if (query == null){
|
|
181
|
return null;
|
|
182
|
}
|
|
183
|
mStmt = mConn.createStatement();
|
|
184
|
rs = mStmt.executeQuery(query);
|
|
185
|
return rs;
|
|
186
|
}catch(SQLException e){
|
|
187
|
logger.error("Problems when creating Resultset for query \n " + query + " \n" + "Exception: " + e);
|
|
188
|
return null;
|
|
189
|
}
|
|
190
|
}
|
|
191
|
|
|
192
|
//******* INSERT, UPDATE, DELETE *******************//
|
|
193
|
/**
|
|
194
|
* Executes an insert, update or delete statement.
|
|
195
|
* Returns the number of rows changed or -1 if updatedStatement was 0 or and error occurred.
|
|
196
|
* Does not change the Sources query-string!!
|
|
197
|
* @return Resultset for the query.
|
|
198
|
*/
|
|
199
|
public int update (String updateStatement){
|
|
200
|
int result;
|
|
201
|
try {
|
|
202
|
this.getConnection(); //establish connection
|
|
203
|
if (updateStatement == null){
|
|
204
|
return -1;
|
|
205
|
}
|
|
206
|
mStmt = mConn.createStatement();
|
|
207
|
result = mStmt.executeUpdate(updateStatement);
|
|
208
|
return result;
|
|
209
|
}catch(SQLException e){
|
|
210
|
logger.error("Problems when creating Resultset for query \n " + updateStatement + " \n" + "Exception: " + e);
|
|
211
|
return -1;
|
|
212
|
}
|
|
213
|
}
|
|
214
|
|
|
215
|
|
|
216
|
/**
|
|
217
|
* Returns the Resultset for Sources query.
|
|
218
|
* @return Resultset for the Sources query
|
|
219
|
*/
|
|
220
|
public ResultSet getResultSet (){
|
|
221
|
return getResultSet(mQuery);
|
|
222
|
}
|
|
223
|
|
|
224
|
|
|
225
|
// ***************CONNECTION *************************************//
|
|
226
|
/**
|
|
227
|
* Returns the connection.
|
|
228
|
* @return the Sources connection
|
|
229
|
*/
|
|
230
|
public Connection getConnection(){
|
|
231
|
try {
|
|
232
|
if (this.connExist == false){
|
|
233
|
if (mConn != null){
|
|
234
|
mConn.close();
|
|
235
|
}
|
|
236
|
this.makeConnection() ;
|
|
237
|
}
|
|
238
|
return this.mConn;
|
|
239
|
} catch (SourceConnectionException e) {
|
|
240
|
//TODO error weitergabe des Fehlers nach oben?
|
|
241
|
logger.error("Error when establishing Connection");
|
|
242
|
return null;
|
|
243
|
} catch (SQLException e) {
|
|
244
|
logger.error("SQLException in getConnection.");
|
|
245
|
return null;
|
|
246
|
}
|
|
247
|
}
|
|
248
|
|
|
249
|
|
|
250
|
/**
|
|
251
|
* Makes the connection.
|
|
252
|
* @return true if connection created
|
|
253
|
* @throws SourceConnectionException
|
|
254
|
*/
|
|
255
|
private boolean makeConnection()throws SourceConnectionException {
|
|
256
|
if (doLog ){
|
|
257
|
DriverManager.setLogWriter(new PrintWriter(System.out));
|
|
258
|
}
|
|
259
|
try {
|
|
260
|
if (makeConnectionString() == false){
|
|
261
|
throw new SourceConnectionException ("Error in Connection String");
|
|
262
|
}
|
|
263
|
if (mDbms.equalsIgnoreCase(ODDBC) ){
|
|
264
|
//not necessarily limited to ODBC
|
|
265
|
java.util.Properties prop = new java.util.Properties();
|
|
266
|
// prop.put("charSet", "Big5");
|
|
267
|
prop.put("user", mUserName);
|
|
268
|
prop.put("password", mPwd);
|
|
269
|
// DriverManager.setLogWriter(new PrintWriter(System.out));
|
|
270
|
mConn = DriverManager.getConnection(mUrl, prop);
|
|
271
|
}else{
|
|
272
|
mConn = DriverManager.getConnection(mUrl, mUserName, mPwd);
|
|
273
|
}
|
|
274
|
|
|
275
|
|
|
276
|
|
|
277
|
mConn.setCatalog(mDb); //
|
|
278
|
logger.info("Connected to " + mConn.getCatalog());
|
|
279
|
mStmt = mConn.createStatement();
|
|
280
|
this.connExist = true;
|
|
281
|
return true;
|
|
282
|
}catch (SQLException e){
|
|
283
|
logger.error("Problems when trying to open the database !!!\n" +
|
|
284
|
"URL: " + mUrl + "\n" +
|
|
285
|
"Exception: " + e);
|
|
286
|
throw new SourceConnectionException ();
|
|
287
|
}
|
|
288
|
}
|
|
289
|
|
|
290
|
/**
|
|
291
|
* Makes the connection string
|
|
292
|
* @return false if ClassNotFoundException, else true
|
|
293
|
*/
|
|
294
|
private boolean makeConnectionString(){
|
|
295
|
String selectMethod;
|
|
296
|
String server;
|
|
297
|
|
|
298
|
if (isCursor)
|
|
299
|
selectMethod = SELECT_CURSOR;
|
|
300
|
else
|
|
301
|
selectMethod = SELECT_DIRECT;
|
|
302
|
try{
|
|
303
|
if (DEBUG_LOG_WRITER) DriverManager.setLogWriter((new PrintWriter(System.out)));
|
|
304
|
// if (mDbms.equalsIgnoreCase(SQL_SERVER_2000)) {
|
|
305
|
// Class.forName(clsSQLServer2000);
|
|
306
|
// server = mServer + ":" + mPort;
|
|
307
|
// mUrl = urlSQLServer + server + ";DataBase=" + mDb + ";SelectMethod="+ selectMethod;
|
|
308
|
// }
|
|
309
|
else if (mDbms.equalsIgnoreCase(SQL_SERVER_2005)) {
|
|
310
|
Class.forName(clsSQLServer2005);
|
|
311
|
server = mServer + ":" + mPort;
|
|
312
|
mUrl = urlSQLServer2005 + server + ";databaseName=" + mDb +";SelectMethod="+ selectMethod;
|
|
313
|
}
|
|
314
|
else if (mDbms.equalsIgnoreCase(SQL_SERVER_2008)) {
|
|
315
|
Class.forName(clsSQLServer2008);
|
|
316
|
server = mServer + ":" + mPort;
|
|
317
|
mUrl = urlSQLServer2008 + server + ";databaseName=" + mDb +";SelectMethod="+ selectMethod;
|
|
318
|
}
|
|
319
|
else if (mDbms.equalsIgnoreCase(ACCESS)) {
|
|
320
|
Class.forName(clsODBC);
|
|
321
|
|
|
322
|
//mDb must be the file path
|
|
323
|
mUrl = urlODBC + "Driver={Microsoft Access Driver (*.mdb)};DBQ=";
|
|
324
|
mUrl += mDb.trim() + ";DriverID=22;READONLY=false}";
|
|
325
|
}
|
|
326
|
else if (mDbms.equalsIgnoreCase(EXCEL)) {
|
|
327
|
Class.forName(clsODBC);
|
|
328
|
mUrl = urlODBC + "jdbc:odbc:Driver={Microsoft Excel Driver (*.xls)};DBQ=";
|
|
329
|
mUrl += mDb.trim() + ";DriverID=22;READONLY=false";
|
|
330
|
}
|
|
331
|
else if (mDbms.equalsIgnoreCase(ODDBC)) {
|
|
332
|
//mDb must be the System DNS name
|
|
333
|
Class.forName(clsODBC);
|
|
334
|
mUrl = urlODBC + mDb ;
|
|
335
|
}
|
|
336
|
else if (mDbms.equalsIgnoreCase(ORACLE)) {
|
|
337
|
Class.forName(clsOracle);
|
|
338
|
mUrl = urlOracle + mDb ;
|
|
339
|
}
|
|
340
|
else if (mDbms.equalsIgnoreCase(DB2)) {
|
|
341
|
Class.forName(clsDB2);
|
|
342
|
mUrl = urlDB2 + mDb;
|
|
343
|
}
|
|
344
|
else if (mDbms.equalsIgnoreCase("SQLServerDdtek")) {
|
|
345
|
Class.forName(clsSQLServerDdtek);
|
|
346
|
mUrl = urlDataDirectSQLServer + mServer;
|
|
347
|
}
|
|
348
|
else {
|
|
349
|
Class.forName(clsSQLServer2005);
|
|
350
|
mUrl = urlDefault;
|
|
351
|
}
|
|
352
|
logger.debug("Connection String: " + mUrl);
|
|
353
|
return true;
|
|
354
|
}catch (ClassNotFoundException e){
|
|
355
|
logger.error("Datenbank-Treiber-Klasse konnte nicht geladen werden\n" + "Exception: " + e.toString());
|
|
356
|
return false;
|
|
357
|
}
|
|
358
|
}
|
|
359
|
|
|
360
|
|
|
361
|
/* ******************** SETTER *************************************/
|
|
362
|
|
|
363
|
/**
|
|
364
|
* @param query
|
|
365
|
*/
|
|
366
|
public Source setQuery (String query){
|
|
367
|
mQuery = query;
|
|
368
|
return this;
|
|
369
|
}
|
|
370
|
|
|
371
|
/**
|
|
372
|
* Sets the username.
|
|
373
|
* @param userName
|
|
374
|
*/
|
|
375
|
public Source setUsername (String userName){
|
|
376
|
if (userName == null){
|
|
377
|
this.mUserName = userNameDefault;
|
|
378
|
}else{
|
|
379
|
this.mUserName = userName;
|
|
380
|
}
|
|
381
|
this.connExist = false;
|
|
382
|
return this;
|
|
383
|
}
|
|
384
|
|
|
385
|
/**
|
|
386
|
* Sets the password.
|
|
387
|
* @param pwd
|
|
388
|
*/
|
|
389
|
public Source setPassword (String pwd){
|
|
390
|
if (pwd == null){
|
|
391
|
this.mPwd = pwdDefault;
|
|
392
|
}else{
|
|
393
|
this.mPwd = pwd;
|
|
394
|
}
|
|
395
|
this.connExist = false;
|
|
396
|
return this;
|
|
397
|
}
|
|
398
|
|
|
399
|
/**
|
|
400
|
* Sets the username and password.
|
|
401
|
* @param userName
|
|
402
|
* @param pwd
|
|
403
|
*/
|
|
404
|
public Source setUserAndPwd (String userName, String pwd){
|
|
405
|
setUsername(userName);
|
|
406
|
setPassword(pwd);
|
|
407
|
return this;
|
|
408
|
}
|
|
409
|
|
|
410
|
/**
|
|
411
|
* Sets the port.
|
|
412
|
* @param userName
|
|
413
|
* @param pwd
|
|
414
|
*/
|
|
415
|
public Source setPort (int port){
|
|
416
|
this.mPort = port;
|
|
417
|
this.connExist = false;
|
|
418
|
return this;
|
|
419
|
}
|
|
420
|
|
|
421
|
public String getDatabase(){
|
|
422
|
return mDb;
|
|
423
|
}
|
|
424
|
|
|
425
|
public String getServer(){
|
|
426
|
return mServer;
|
|
427
|
}
|
|
428
|
|
|
429
|
|
|
430
|
public boolean isDoLog() {
|
|
431
|
return doLog;
|
|
432
|
}
|
|
433
|
|
|
434
|
public void setDoLog(boolean doLog) {
|
|
435
|
this.doLog = doLog;
|
|
436
|
}
|
|
437
|
|
|
438
|
/**
|
|
439
|
* Checks if an attribute exists in the database schema. At the moment only supported
|
|
440
|
* for SQL Server.
|
|
441
|
* TODO implement for others.
|
|
442
|
* @param tableName
|
|
443
|
* @param dbAttribute
|
|
444
|
* @return
|
|
445
|
* @throws MethodNotSupportedException
|
|
446
|
*/
|
|
447
|
public boolean checkColumnExists(String tableName, String dbAttribute) throws MethodNotSupportedException{
|
|
448
|
if (mDbms.equalsIgnoreCase(SQL_SERVER_2005)|| mDbms.equalsIgnoreCase(SQL_SERVER_2008) ){
|
|
449
|
String strQuery = "SELECT Count(t.id) as n " +
|
|
450
|
" FROM sysobjects AS t " +
|
|
451
|
" INNER JOIN syscolumns AS c ON t.id = c.id " +
|
|
452
|
" WHERE (t.xtype = 'U') AND " +
|
|
453
|
" (t.name = '" + tableName + "') AND " +
|
|
454
|
" (c.name = '" + dbAttribute + "')";
|
|
455
|
ResultSet rs = getResultSet(strQuery) ;
|
|
456
|
int n;
|
|
457
|
try {
|
|
458
|
rs.next();
|
|
459
|
n = rs.getInt("n");
|
|
460
|
return n>0;
|
|
461
|
} catch (SQLException e) {
|
|
462
|
e.printStackTrace();
|
|
463
|
return false;
|
|
464
|
}
|
|
465
|
}else{
|
|
466
|
throw new MethodNotSupportedException("Check column exist is not supported by the database system");
|
|
467
|
}
|
|
468
|
}
|
|
469
|
|
|
470
|
@Override
|
|
471
|
public String toString(){
|
|
472
|
if (mDb != null){
|
|
473
|
return mDb;
|
|
474
|
}else if (mUrl == null){
|
|
475
|
return super.toString();
|
|
476
|
}else{
|
|
477
|
return mUrl;
|
|
478
|
}
|
|
479
|
}
|
|
480
|
|
|
481
|
|
|
482
|
}
|