void IDisposable.Dispose()
{
_current = default(TEntity);
_mapper.TearDown();
_source.Dispose();
_disposing?.Invoke(_count);
_source = null;
}
/// <summary>
///
/// </summary>
/// <param name="command"></param>
/// <returns></returns>
protected IEnumerator <TEntity> CreateEnumerator(IDbCommand command)
{
var sw = Stopwatch.StartNew();
var connection = command.Connection;
if (connection == null)
{
throw new InvalidOperationException("command.Connection is null.");
}
var connectionState = connection.State;
if (connectionState != ConnectionState.Open)
{
connection.Open();
Log($" Open connection at {DateTime.Now}. Elpased times: {sw.Elapsed}.");
sw.Restart();
}
var reader = command.ExecuteReader();
{
IResultSource source = new DataReaderResultSource(reader);
try
{
return(new QueryResultEnumerator(source, _mapper, (count) =>
{
sw.Stop();
Log($" Complete enumerate {count} records. Elpased times: {sw.Elapsed}.");
if (connectionState != ConnectionState.Open && connection.State == ConnectionState.Closed)
{
Log($" Close connection at {DateTime.Now}.");
}
}));
}
catch
{
_mapper.TearDown();
source.Dispose();
sw.Stop();
throw;
}
finally
{
Log(" Elapsed times: " + sw.Elapsed);
}
}
}
