private static List <T> GenerateObjects <T>(
Dictionary <int, ObjectPropertyMapping> indexer,
IDataReader data,
ExecutionContext context)
{
var timer = new Stopwatch();
timer.Start();
try
{
var returnList = new List <T>();
using (data)
{
while (data.Read())
{
var adapter = new DataRecordAdapter(data);
returnList.Add(GenerateObject <T>(adapter, indexer, context));
}
}
return(returnList);
}
finally
{
timer.Stop();
context.ExecutionEvent.DataMappingTiming = timer.ElapsedTicks;
}
}
private static List <T> GenerateObjects <T>(
Dictionary <int, ObjectPropertyMapping> indexer,
DataTable data,
ExecutionContext context)
{
var timer = new Stopwatch();
timer.Start();
var returnList = new List <T>();
try
{
foreach (DataRow dataRow in data.Rows)
{
var adapter = new DataRecordAdapter(dataRow);
returnList.Add(GenerateObject <T>(adapter, indexer, context));
}
}
finally
{
timer.Stop();
context.ExecutionEvent.DataMappingTiming = timer.ElapsedTicks;
}
return(returnList);
}
private static T GenerateObject <T>(
DataRecordAdapter row,
Dictionary <int, ObjectPropertyMapping> indexer,
ExecutionContext context)
{
var newO = Activator.CreateInstance <T>();
foreach (var key in indexer.Keys)
{
if (row[key] == null || row[key] == DBNull.Value)
{
continue;
}
var indexerVal = indexer[key];
var columnName = indexerVal.Name.ToLower();
var tempValue = row[key];
var customMapping = context.ParameterMappingFunctionCollection.ContainsKey(columnName)
? context.ParameterMappingFunctionCollection[columnName]
: null;
SetProperty(
ref newO,
indexerVal,
tempValue,
customMapping);
}
return(newO);
}
/// <summary>
/// Map a datareader to a new object of type T. If T implements IDictionary<string,object> then
/// the dictionary will be populated.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="reader"></param>
/// <returns></returns>
public static T Map <T>(this IDataRecord record)
{
var wrapper = new DataRecordAdapter(record);
return(wrapper.Map <T>());
}
/// <summary>
/// Map to a data record.
/// </summary>
/// <param name="reader"></param>
/// <param name="obj"></param>
public static void Map(this IDataRecord record, object obj)
{
var wrapper = new DataRecordAdapter(record);
wrapper.Map(obj);
}
