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# |
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# This file is part of GNU Enterprise. |
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# |
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# GNU Enterprise is free software; you can redistribute it |
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# and/or modify it under the terms of the GNU General Public |
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# License as published by the Free Software Foundation; either |
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# version 2, or (at your option) any later version. |
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# |
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# GNU Enterprise is distributed in the hope that it will be |
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# useful, but WITHOUT ANY WARRANTY; without even the implied |
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# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
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# PURPOSE. See the GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public |
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# License along with program; see the file COPYING. If not, |
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# write to the Free Software Foundation, Inc., 59 Temple Place |
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# - Suite 330, Boston, MA 02111-1307, USA. |
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# |
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# Copyright 2000-2003 Free Software Foundation |
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# |
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# FILE: |
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# sapdb/DBdriver.py |
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# |
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# DESCRIPTION: |
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# Driver to provide access to data via SAP's SAP-DB/Python Driver |
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# Requires SAP-DB (http://www.sapdb.org/) |
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# |
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# NOTES: |
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# |
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# Supported attributes (via connections.conf or <database> tag) |
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# |
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# host= This is the SAP-DB host for your connection (optional) |
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# dbname= This is the SAP-DB database to use (required) |
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# timeout= Command timeout in seconds (optional) |
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# isolation= Isolation level (options) |
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# sqlmode= INTERNAl or ORACLE (optional) |
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# sqlsubmode= ODBC or empty (optional) |
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# |
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_exampleConfig = """ |
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# This connection uses the SAP DB driver |
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# We will be connecting to the SAP DB server on |
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# "localhost" to a database called "TST". |
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[sapdb] |
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comment = XYZ Development Database |
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provider = sapdb |
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dbname = TST |
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# host = localhost # (optional) |
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# sqlmode = INTERNAL # (default) or ORACLE |
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# sqlsubmode = ODBC # (for compatibility with the SAP DB ODBC driver) |
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# timeout = 900 # (command timeout in seconds) |
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# isolation = 1 # 0, 1 (default), 10, 15, 2, 20, 3, 30 |
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""" |
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__all__ = ['Connection'] |
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#### THIS IS AN UNTESTED DRIVER #### |
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#### Any volunteers? #### |
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import string |
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from string import lower |
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import sys |
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from gnue.common.datasources import GDataObjects, GConditions, GConnections |
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from gnue.common.apps import GDebug |
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from gnue.common.datasources.drivers import DBSIG2 |
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try: |
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import sapdbapi as SIG2api |
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except ImportError, message: |
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tmsg = _("Driver not installed: sapdbapi for SAP-DB 7.x \n[%s]") % message |
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raise GConnections.AdapterNotInstalled, tmsg |
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from gnue.common.datasources.drivers.sapdb.Schema.Discovery.Introspection import Introspection |
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###################################################################### |
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# |
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# GConnection object for PostgreSQL-based drivers |
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# |
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class Connection(DBSIG2.Connection): |
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_DatabaseError = SIG2api.DatabaseError |
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defaultBehavior = Introspection |
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supportedDataObjects = { |
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'object': DataObject_Object, |
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'sql': DataObject_SQL |
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} |
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def connect(self, connectData={}): |
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GDebug.printMesg(1,"SAP database driver initializing") |
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try: |
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options = {'autocommit': 'off'} |
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for gnueName, sapdbName in [('sqlmode', 'sqlmode'), |
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('timeout', 'timeout'), |
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('isolation', 'isolation'), |
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('sqlsubmode', 'component')]: |
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if connectData.has_key (gnueName): |
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options [sapdbName] = connectData [gnueName] |
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self.native = apply (SIG2api.connect, |
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(connectData['_username'], connectData['_password'], |
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connectData['dbname'], connectData.get ('host', '')), |
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options) |
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#self.native = SIG2api.connect( \ |
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# user=connectData['_username'], \ |
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# password=connectData['_password'], \ |
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# database=connectData['dbname'], \ |
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# host=connectData.get ('host', ''), \ |
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# autocommit="off") |
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except self._DatabaseError, value: |
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raise GDataObjects.LoginError, value |
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def createConnection (conn, **overrides): |
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from gnue.common.datasources.GConnections import GConnections |
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connections = GConnections (r'D:\Python22\etc\connections.conf') |
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parameters = connections.getConnectionParameters (conn).copy () |
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dataObject = connections.getDataObject (conn, 'object') |
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parameters.update (overrides) |
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dataObject.connect (parameters) |
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return dataObject |
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def testConnection (): |
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conn, user, pwd = sys.argv [1:4] |
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connection = createConnection (conn, _username = user, _password = pwd) |
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connection.getSchemaList () |
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if __name__ == "__main__": |
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testConnection () |