private static void AlignField(this IFixedFieldInfoDescriptor fieldBuilder, StringBuilder sb, string field)
{
if (field.Length > fieldBuilder.Length)
{
field = field.Substring(0, fieldBuilder.Length);
}
switch (fieldBuilder.AlignMode)
{
case AlignMode.Right:
sb.Append(field);
sb.Append(fieldBuilder.AlignChar, fieldBuilder.Length - field.Length);
break;
case AlignMode.Left:
sb.Append(fieldBuilder.AlignChar, fieldBuilder.Length - field.Length);
sb.Append(field);
break;
case AlignMode.Center:
int middle = (fieldBuilder.Length - field.Length) / 2;
sb.Append(fieldBuilder.AlignChar, middle);
sb.Append(field);
sb.Append(fieldBuilder.AlignChar, fieldBuilder.Length - field.Length - middle);
break;
}
}
public static string RecordToString(this IFixedFieldInfoDescriptor descriptor, object record)
{
var sb = new StringBuilder(descriptor.Length);
string field = descriptor.CreateFieldString(record);
descriptor.AlignField(sb, field);
return(sb.ToString());
}
private void CheckFieldDescriptor(string fieldName, IFixedFieldInfoDescriptor fieldDescriptor)
{
if (fieldDescriptor == null)
{
throw new ArgumentNullException(nameof(fieldDescriptor));
}
if (fieldDescriptor.Length <= 0)
{
throw new BadFluentConfigurationException($"The property {fieldName} must be a length gearter than 0");
}
}
private static string CreateFieldString(this IFixedFieldInfoDescriptor fieldBuilder, object fieldValue)
{
if (fieldBuilder.Converter == null)
{
if (fieldValue == null)
{
return(string.Empty);
}
return(fieldValue.ToString());
}
ConverterBase converterInstance =
ConverterFactory.GetConverter(fieldBuilder.Converter, fieldBuilder.ConverterFormat);
return(converterInstance?.FieldToString(fieldValue) ?? string.Empty);
}
private static string StringTrim(this IFixedFieldInfoDescriptor recordInfo, string value)
{
switch (recordInfo.TrimMode)
{
case TrimMode.None:
return(value);
case TrimMode.Both:
return(value.Trim());
case TrimMode.Left:
return(value.TrimStart());
case TrimMode.Right:
return(value.TrimEnd());
}
return(value);
}
public static object StringToRecord(this IFixedFieldInfoDescriptor recordInfo, string line, ref int offset)
{
if (offset >= line.Length)
{
return(null);
}
int length = recordInfo.Length;
if (line.Length < recordInfo.Length + offset)
{
length = line.Length - offset;
}
var stringValue = line.Substring(offset, length);
offset += length;
string stringNullRepresentation = new string('\u0000', length);
if ((stringValue == null || stringValue == stringNullRepresentation) && recordInfo.NullValue == null)
{
return(null);
}
else if ((stringValue == null || stringValue == stringNullRepresentation) && recordInfo.NullValue != null)
{
stringValue = recordInfo.NullValue.ToString();
}
stringValue = recordInfo.StringTrim(stringValue);
ConverterBase converterInstance;
if (string.Empty.Equals(stringValue) && recordInfo.Converter == null)
{
if (recordInfo.NullValue != null)
{
stringValue = recordInfo.NullValue.ToString();
}
if (string.Empty.Equals(stringValue) && recordInfo.Converter == null)
{
if (recordInfo.Type != null)
{
converterInstance = ConverterFactory.GetDefaultConverter(recordInfo.Type, recordInfo.ConverterFormat);
return(converterInstance == null
? stringValue
: converterInstance.StringToField(stringValue));
}
return(stringValue);
}
}
if (recordInfo.Converter == null && recordInfo.Type == null)
{
return(stringValue);
}
if (string.IsNullOrWhiteSpace(stringValue) && recordInfo.NullValue != null)
{
stringValue = recordInfo.NullValue.ToString();
}
converterInstance =
recordInfo.Converter == null
? ConverterFactory.GetDefaultConverter(recordInfo.Type, recordInfo.ConverterFormat)
: ConverterFactory.GetConverter(recordInfo.Converter, recordInfo.ConverterFormat);
return(converterInstance == null
? stringValue
: converterInstance.StringToField(stringValue));
}