public void connect(String databaseName) throws TechnicalException {
this.databaseParameter.setDatabaseName(databaseName);
try {
String connectionString = null;
if (databaseParameter.getRdbs().isMySql()) {
Class.forName("com.mysql.jdbc.Driver").newInstance();
connectionString =
"jdbc:mysql://"
+ databaseParameter.getDatabaseHost()
+ ":"
+ databaseParameter.getDatabasePort()
+ "/"
+ databaseParameter.getDatabaseName();
} else if (databaseParameter.getRdbs().isPostgreSql()) {
connectionString =
"jdbc:postgresql://"
+ databaseParameter.getDatabaseHost()
+ ":"
+ databaseParameter.getDatabasePort()
+ "/"
+ databaseParameter.getDatabaseName();
} else if (databaseParameter.getRdbs().isOracle()) {
connectionString =
"jdbc:oracle:thin:@"
+ databaseParameter.getDatabaseHost()
+ ":"
+ databaseParameter.getDatabasePort()
+ ":"
+ databaseParameter.getDatabaseName();
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver()); // Need to load driver
}
connection =
DriverManager.getConnection(
connectionString,
databaseParameter.getDatabaseUser(),
databaseParameter.getDatabasePassword());
} catch (SQLException e) {
throw new TechnicalException(e);
} catch (InstantiationException e) {
throw new TechnicalException(e);
} catch (IllegalAccessException e) {
throw new TechnicalException(e);
} catch (ClassNotFoundException e) {
throw new TechnicalException(e);
}
}
public Connection connect() throws TechnicalException {
Connection connection = null;
String connectionString = null;
try {
if (databaseParameter.getRdbs().isMySql()) {
DriverManager.registerDriver(new com.mysql.jdbc.Driver());
connectionString =
"jdbc:mysql://"
+ databaseParameter.getDatabaseHost()
+ ":"
+ databaseParameter.getDatabasePort()
+ "/"
+ databaseParameter.getDatabaseName();
} else if (databaseParameter.getRdbs().isPostgreSql()) {
DriverManager.registerDriver(new org.postgresql.Driver());
connectionString =
"jdbc:postgresql://"
+ databaseParameter.getDatabaseHost()
+ ":"
+ databaseParameter.getDatabasePort()
+ "/"
+ databaseParameter.getDatabaseName();
} else if (databaseParameter.getRdbs().isOracle()) {
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
connectionString =
"jdbc:oracle:thin:@"
+ databaseParameter.getDatabaseHost()
+ ":"
+ databaseParameter.getDatabasePort()
+ ":"
+ databaseParameter.getDatabaseName();
}
connection =
DriverManager.getConnection(
connectionString,
databaseParameter.getDatabaseUser(),
databaseParameter.getDatabasePassword());
if (databaseParameter.getRdbs().isPostgreSql()) {
connection.setAutoCommit(
false); // Need to explicitely set auto-commit to false (for streaming results)
}
} catch (SQLException e) {
throw new TechnicalException(connectionString, e);
}
return connection;
}
