override protected DbMetaDataFactory CreateMetaDataFactory(DbConnectionInternal internalConnection, out bool cacheMetaDataFactory)
{
Debug.Assert(internalConnection != null, "internalConnection may not be null.");
cacheMetaDataFactory = false;
OleDbConnectionInternal oleDbInternalConnection = (OleDbConnectionInternal)internalConnection;
OleDbConnection oleDbOuterConnection = oleDbInternalConnection.Connection;
Debug.Assert(oleDbOuterConnection != null, "outer connection may not be null.");
NameValueCollection settings = (NameValueCollection)PrivilegedConfigurationManager.GetSection("system.data.oledb");
Stream XMLStream = null;
String providerFileName = oleDbOuterConnection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo, ODB.DBPROP_PROVIDERFILENAME) as string;
if (settings != null)
{
string [] values = null;
string metaDataXML = null;
// first try to get the provider specific xml
// if providerfilename is not supported we can't build the settings key needed to
// get the provider specific XML path
if (providerFileName != null)
{
metaDataXML = providerFileName + _metaDataXml;
values = settings.GetValues(metaDataXML);
}
// if we did not find provider specific xml see if there is new default xml
if (values == null)
{
metaDataXML = _defaultMetaDataXml;
values = settings.GetValues(metaDataXML);
}
// If there is new XML get it
if (values != null)
{
XMLStream = ADP.GetXmlStreamFromValues(values, metaDataXML);
}
}
// if the xml was not obtained from machine.config use the embedded XML resource
if (XMLStream == null)
{
XMLStream = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream("System.Data.OleDb.OleDbMetaData.xml");
cacheMetaDataFactory = true;
}
Debug.Assert(XMLStream != null, "XMLstream may not be null.");
// using the ServerVersion as the NormalizedServerVersion. Doing this for two reasons
// 1) The Spec for DBPROP_DBMSVER normalizes the ServerVersion
// 2) for OLE DB its the only game in town
return(new OleDbMetaDataFactory(XMLStream,
oleDbInternalConnection.ServerVersion,
oleDbInternalConnection.ServerVersion,
oleDbInternalConnection.GetSchemaRowsetInformation()));
}
protected override DbMetaDataFactory CreateMetaDataFactory(DbConnectionInternal internalConnection, out bool cacheMetaDataFactory)
{
cacheMetaDataFactory = false;
OleDbConnectionInternal internal2 = (OleDbConnectionInternal)internalConnection;
OleDbConnection connection = internal2.Connection;
NameValueCollection section = (NameValueCollection)System.Configuration.PrivilegedConfigurationManager.GetSection("system.data.oledb");
Stream xMLStream = null;
string dataSourcePropertyValue = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo, 0x60) as string;
if (section != null)
{
string[] values = null;
string name = null;
if (dataSourcePropertyValue != null)
{
name = dataSourcePropertyValue + ":MetaDataXml";
values = section.GetValues(name);
}
if (values == null)
{
name = "defaultMetaDataXml";
values = section.GetValues(name);
}
if (values != null)
{
xMLStream = ADP.GetXmlStreamFromValues(values, name);
}
}
if (xMLStream == null)
{
xMLStream = Assembly.GetExecutingAssembly().GetManifestResourceStream("System.Data.OleDb.OleDbMetaData.xml");
cacheMetaDataFactory = true;
}
return(new OleDbMetaDataFactory(xMLStream, internal2.ServerVersion, internal2.ServerVersion, internal2.GetSchemaRowsetInformation()));
}
