/// <summary>
/// read a field
/// </summary>
/// <param name="fieldFormat"></param>
/// <param name="readNumericValues"></param>
/// <returns></returns>
private object ReadField(FieldFormat fieldFormat, IDictionary <string, decimal> readNumericValues)
{
List <object> values = new List <object>();
int occurs;
if (fieldFormat.HasDependencies())
{
if (readNumericValues.ContainsKey(fieldFormat.DependingOn))
{
occurs = Decimal.ToInt32(readNumericValues[fieldFormat.DependingOn]);
}
else
{
throw new System.Exception(
string.Format("Check your copybook :[{0}] is not present, but field format says it has dependencies ...",
fieldFormat.DependingOn));
}
}
else
{
occurs = fieldFormat.Occurs;
}
for (int i = 0; i < occurs; i++)
{
byte[] bytes = Read(fieldFormat.ByteSize, fieldFormat);
object value = _decoder.Decode(bytes, fieldFormat);
values.Add(value);
if (value is decimal)
{
readNumericValues[fieldFormat.Name] = (decimal)value;
}
}
if (fieldFormat.HasDependencies() || occurs > 1)
{
// if occurs is variable or greater than one, return results in a list
return(values);
}
else
{
// otherwise, just return the single item
return(values[0]);
}
}
/// <summary>
/// Convert list of objects
/// </summary>
/// <param name="values"></param>
/// <param name="format"></param>
/// <param name="writtenNumbers"></param>
/// <returns></returns>
private List <object> ConvertList(List <object> values, FieldFormat format, IDictionary <string, decimal> writtenNumbers)
{
List <object> result = values.Select(element => Convert(element, format, writtenNumbers)).ToList();
int occurs;
if (format.HasDependencies())
{
occurs = (int)writtenNumbers[format.DependingOn];
}
else
{
occurs = format.Occurs;
}
int toFill = occurs - values.Count;
for (int i = 0; i < toFill; i++)
{
result.Add(GetFillValue(format));
}
return(result);
}