public IEnumerable <T> ExecuteReader <T>(object mapperKey, IDbConnection connection, string statment, params IDataParameter[] dataParameters)
where T : new()
{
IDataReaderObjectMapper mapper = null;
if (mapperKey == null)
{
mapperKey = statment;
}
IDbCommand command = null;
IDataReader reader = null;
try
{
command = CreateCommandImpl(statment, connection);
OpenConnection(connection);
PopulateParameterImpl(command, false, false, dataParameters);
Logger.LogFormat(LevelEnum.Verbose, Resources.INFO_EXECUTE_READER, command.CommandText);
reader = command.ExecuteReader();
mapper = Mapper.Value.GetMapper <T>(mapperKey, reader);
}
catch (Exception ex)
{
string msg = string.Format(Resources.ERR_EXECUTING_EXECUTE, command.CommandText);
Logger.Log(LevelEnum.Error, ex, msg);
DataException dataException = new DataException(msg, ex);
ex.Data["CommandText"] = command.CommandText;
ex.Data["ComandTimeout"] = command.CommandTimeout;
ex.Data["Database"] = connection.Database;
ex.Data["Parameters"] = ToString(dataParameters);
throw dataException;
}
while (reader.Read())
{
T data = new T();
mapper.Populate(ref data, reader);
yield return(data);
}
Logger.LogFormat(LevelEnum.Verbose, Resources.INFO_EXECUTE_READER_END, command.CommandText);
try
{
using (command) { }
}
catch (Exception ex)
{
string msg = string.Format(Resources.ERR_EXECUTING_EXECUTE, statment);
Logger.Log(LevelEnum.Error, ex, msg);
DataException dataException = new DataException(msg, ex);
ex.Data["CommandText"] = command.CommandText;
ex.Data["ComandTimeout"] = command.CommandTimeout;
ex.Data["Parameters"] = ToString(dataParameters);
throw dataException;
}
}
/// <summary>
/// Populate an object of Type T, using the statment and the data from the reader
/// </summary>
/// <typeparam name="T">Type of the object to map </typeparam>
/// <param name="data">Object to map</param>
/// <param name="sqlStatement">procedure,direct statment used to get information</param>
/// <param name="reader">DataReader to process</param>
public void Populate <T>(ref T data, string sqlStatement, IDataReader reader)
{
IDataReaderObjectMapper mapper = null;
try
{
mapper = GetMapper <T>(sqlStatement, reader);
mapper.FieldCount = reader.FieldCount;
}
catch (Exception ex)
{
Logger.LogFormat(LevelEnum.Warn, ex, Resources.ERR_MAPPING_GET, ex.Message);
throw;
}
mapper.Populate(ref data, reader);
}
