public static ExtractStatus Import <T, V>(this ISingleRecordMapper <T, V> recordMapper, IFileReader reader)
where V : class, new()
{
ExtractStatus r;
int count = 0;
do
{
try
{
reader.Next();
recordMapper.Value = null;
r = recordMapper.Extract(reader);
if (r == ExtractStatus.Success)
{
++count;
recordMapper.SetProperty();
}
else
{
if (r == ExtractStatus.ValueMismatched)
{
reader.Previous();
if (count >= recordMapper.MinOccurrence)
{
r = ExtractStatus.Success;
}
else
{
r = ExtractStatus.Failed;
r.Message = String.Format(LessMessage, count, recordMapper.ToString(), recordMapper.MinOccurrence);
}
}
break;
}
}
catch (EndOfStreamException)
{
if (count >= recordMapper.MinOccurrence)
{
r = ExtractStatus.EndOfFile;
break;
}
else
{
r = ExtractStatus.Failed;
r.Message = String.Format(LessMessage, count, recordMapper.ToString(), recordMapper.MinOccurrence);
}
}
catch (Exception exc)
{
throw new Exception(string.Format("Error at line {0} : {1}", reader.LineNo, exc.ToString()));
}
} while (recordMapper.MaxOccurrence == 0 || count < recordMapper.MaxOccurrence);
return(r);
}
public static void Export <T, V>(this ISingleRecordMapper <T, V> recordMapper, IFileWriter writer)
where V : class, new()
{
IEnumerable <V> vEnumerable = recordMapper.EnumerableOfV;
if (null != vEnumerable)
{
foreach (V v in vEnumerable)
{
recordMapper.Value = v;
recordMapper.Insert(writer);
}
}
else
{
if (null == recordMapper.Value)
{
recordMapper.Value = recordMapper.GetObject();
}
recordMapper.Insert(writer);
}
}
