/// <summary>
/// Writes data contained in DataTable to table stored in TableName property.
/// </summary>
/// <param name="dtList">List of temp file names containing data tables with grid rows to be output.</param>
/// <returns>True if output operation is successful. False if write fails.</returns>
public bool WriteDataToOutput(PFList <string> dtList)
{
bool success = true;
PFDatabase db = null;
bool createTable = false;
DataTable dt = new DataTable();
string tableName = string.Empty;
bool isOracleOdbc = false;
bool isOracleOledb = false;
try
{
if (dtList.Count == 0)
{
_msg.Length = 0;
_msg.Append("WriteDataToOutput for list of temp files has failed.");
_msg.Append(Environment.NewLine);
_msg.Append("Temp file name list is empty.");
throw new System.Exception(_msg.ToString());
}
//Load first temp file in list to get data table schema
dt.Rows.Clear();
dt.ReadXml(dtList[0]);
db = new PFDatabase(this.DbPlatform, this.DbDllPath, this.DbNamespace + "." + this.DbClassName);
db.ConnectionString = this.ConnectionString;
tableName = this.TableName;
//workaround for oracle odbc and oledb driver problems with inserts
if (this.DbPlatform == DatabasePlatform.ODBC)
{
PFOdbc odbcDb = new PFOdbc();
odbcDb.ConnectionString = this.ConnectionString;
DatabasePlatform odbcDbPlat = odbcDb.GetDatabasePlatform();
if (odbcDbPlat == DatabasePlatform.OracleNative || odbcDbPlat == DatabasePlatform.MSOracle)
{
isOracleOdbc = true;
}
odbcDb = null;
}
if (this.DbPlatform == DatabasePlatform.OLEDB)
{
PFOleDb oledbDb = new PFOleDb();
oledbDb.ConnectionString = this.ConnectionString;
DatabasePlatform oledbDbPlat = oledbDb.GetDatabasePlatform();
if (oledbDbPlat == DatabasePlatform.OracleNative || oledbDbPlat == DatabasePlatform.MSOracle)
{
isOracleOledb = true;
}
oledbDb = null;
}
//set table and column names to upper case if this is an Oracle ODBC driver or OLEDB provider
if (isOracleOdbc || isOracleOledb)
{
tableName = this.TableName.ToUpper();
for (int colInx = 0; colInx < dt.Columns.Count; colInx++)
{
dt.Columns[colInx].ColumnName = dt.Columns[colInx].ColumnName.ToUpper();
}
}
else
{
tableName = this.TableName;
}
//end workaround for oracle odbc and oledb
dt.TableName = tableName;
if (db.TableExists(tableName))
{
if (this.ReplaceExistingTable)
{
db.OpenConnection();
db.DropTable(tableName);
db.CloseConnection();
createTable = true;
}
else
{
createTable = false; //existing table will be imported into
}
}
else
{
createTable = true;
}
if (createTable)
{
db.OpenConnection();
string createScript = string.Empty;
string errorMessages = string.Empty;
bool tabCreated = db.CreateTable(dt, out createScript, out errorMessages);
if (tabCreated == false)
{
_msg.Length = 0;
_msg.Append("Unable to create table: ");
_msg.Append(tableName);
_msg.Append(Environment.NewLine);
_msg.Append("Error Messages: ");
_msg.Append(errorMessages);
_msg.Append(Environment.NewLine);
_msg.Append("Create Script: ");
_msg.Append(createScript);
throw new System.Exception(_msg.ToString());
}
db.CloseConnection();
}
for (int dtInx = 0; dtInx < dtList.Count; dtInx++)
{
_msg.Length = 0;
_msg.Append("List # ");
_msg.Append(dtInx.ToString());
Console.WriteLine(_msg.ToString());
dt = new DataTable();
dt.TableName = this.TableName; //original table name should be in xml file definition
dt.Rows.Clear();
dt.ReadXml(dtList[dtInx]);
db.OpenConnection();
//set table and column names to upper case if this is an Oracle ODBC driver or OLEDB provider
if (isOracleOdbc || isOracleOledb)
{
dt.TableName = this.TableName.ToUpper();
for (int colInx = 0; colInx < dt.Columns.Count; colInx++)
{
dt.Columns[colInx].ColumnName = dt.Columns[colInx].ColumnName.ToUpper();
}
}
db.ImportDataFromDataTable(dt, this.OutputBatchSize);
db.CloseConnection();
dt = null;
}
}
catch (System.Exception ex)
{
success = false;
_msg.Length = 0;
_msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
throw new System.Exception(_msg.ToString());
}
finally
{
if (db != null)
{
if (db.IsConnected)
{
db.CloseConnection();
}
db = null;
}
}
return(success);
}
/// <summary>
/// Writes data contained in DataTable to table stored in TableName property.
/// </summary>
/// <param name="dt">DataTable object containing data to be output.</param>
/// <returns>True if output operation is successful. False if write fails.</returns>
public bool WriteDataToOutput(DataTable dt)
{
bool success = true;
PFDatabase db = null;
bool createTable = false;
DataTable saveDtSchema = null;
string tableName = string.Empty;
bool isOracleOdbc = false;
bool isOracleOledb = false;
try
{
//save column names that may be changed during export processing so that they can be restored in finally block below
saveDtSchema = dt.Clone();
db = new PFDatabase(this.DbPlatform, this.DbDllPath, this.DbNamespace + "." + this.DbClassName);
db.ConnectionString = this.ConnectionString;
tableName = this.TableName;
//workaround for oracle odbc and oledb driver problems with inserts
if (this.DbPlatform == DatabasePlatform.ODBC)
{
PFOdbc odbcDb = new PFOdbc();
odbcDb.ConnectionString = this.ConnectionString;
DatabasePlatform odbcDbPlat = odbcDb.GetDatabasePlatform();
if (odbcDbPlat == DatabasePlatform.OracleNative || odbcDbPlat == DatabasePlatform.MSOracle)
{
isOracleOdbc = true;
}
odbcDb = null;
}
if (this.DbPlatform == DatabasePlatform.OLEDB)
{
PFOleDb oledbDb = new PFOleDb();
oledbDb.ConnectionString = this.ConnectionString;
DatabasePlatform oledbDbPlat = oledbDb.GetDatabasePlatform();
if (oledbDbPlat == DatabasePlatform.OracleNative || oledbDbPlat == DatabasePlatform.MSOracle)
{
isOracleOledb = true;
}
oledbDb = null;
}
//set table and column names to upper case if this is an Oracle ODBC driver or OLEDB provider
if (isOracleOdbc || isOracleOledb)
{
tableName = this.TableName.ToUpper();
for (int colInx = 0; colInx < dt.Columns.Count; colInx++)
{
dt.Columns[colInx].ColumnName = dt.Columns[colInx].ColumnName.ToUpper();
}
}
//end workaround for oracle odbc and oledb
dt.TableName = tableName;
if (db.TableExists(tableName))
{
if (this.ReplaceExistingTable)
{
db.OpenConnection();
db.DropTable(tableName);
db.CloseConnection();
createTable = true;
}
else
{
createTable = false; //existing table will be imported into
}
}
else
{
createTable = true;
}
if (createTable)
{
db.OpenConnection();
string createScript = string.Empty;
string errorMessages = string.Empty;
bool tabCreated = db.CreateTable(dt, out createScript, out errorMessages);
if (tabCreated == false)
{
_msg.Length = 0;
_msg.Append("Unable to create table: ");
_msg.Append(tableName);
_msg.Append(Environment.NewLine);
_msg.Append("Error Messages: ");
_msg.Append(errorMessages);
_msg.Append(Environment.NewLine);
_msg.Append("Create Script: ");
_msg.Append(createScript);
throw new System.Exception(_msg.ToString());
}
db.CloseConnection();
}
db.OpenConnection();
db.ImportDataFromDataTable(dt, this.OutputBatchSize);
db.CloseConnection();
}
catch (System.Exception ex)
{
success = false;
_msg.Length = 0;
_msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
throw new System.Exception(_msg.ToString());
}
finally
{
if (db != null)
{
if (db.IsConnected)
{
db.CloseConnection();
}
db = null;
}
//resstore any column names that may have been changed during export processing
for (int colInx = 0; colInx < dt.Columns.Count; colInx++)
{
dt.Columns[colInx].ColumnName = saveDtSchema.Columns[colInx].ColumnName;
}
}
return(success);
}
