internal FixedLengthField(FieldInfo fi, int length, FieldAlignAttribute align) : base(fi)
{
mFieldLength = length;
if (align != null)
{
mAlign = align;
}
else
{
if (fi.FieldType == typeof(Int16) ||
fi.FieldType == typeof(Int32) ||
fi.FieldType == typeof(Int64) ||
fi.FieldType == typeof(UInt16) ||
fi.FieldType == typeof(UInt32) ||
fi.FieldType == typeof(UInt64) ||
fi.FieldType == typeof(byte) ||
fi.FieldType == typeof(sbyte) ||
fi.FieldType == typeof(decimal) ||
fi.FieldType == typeof(float) ||
fi.FieldType == typeof(double))
{
mAlign = new FieldAlignAttribute(AlignMode.Right, ' ');
}
}
}
/// <summary>
/// Create a fixed length field from field information
/// </summary>
/// <param name="fi">Field definitions</param>
/// <param name="length">Length of this field</param>
/// <param name="align">Alignment, left or right</param>
internal FixedLengthField(FieldInfo fi, int length, FieldAlignAttribute align)
: base(fi, null)
{
FixedMode = FixedMode.ExactLength;
Align = new FieldAlignAttribute(AlignMode.Left, ' ');
FieldLength = length;
if (align != null)
{
Align = align;
}
else if (fi.FieldType.IsNumeric())
{
Align = new FieldAlignAttribute(AlignMode.Right, ' ');
}
//else if (fi.FieldType.IsNumeric()) Align = new FieldAlignAttribute(AlignMode.Right, ' ');
}
public static FieldBase CreateField(FieldInfo fi, TypedRecordAttribute recordAttribute, bool someOptional)
{
// If ignored, return null
if (fi.IsDefined(typeof(FieldIgnoredAttribute), true))
{
return(null);
}
FieldBase res = null;
FieldAttribute[] attributes;
FieldAttribute fieldAttb;
attributes = (FieldAttribute[])fi.GetCustomAttributes(typeof(FieldAttribute), true);
// CHECK USAGE ERRORS !!!
if (attributes.Length > 1)
{
throw new BadUsageException("The field: " + fi.Name + " has more than one FieldAttribute (left only one or none)");
}
if (attributes.Length == 0 && recordAttribute is FixedLengthRecordAttribute)
{
throw new BadUsageException("The record class marked with the FixedLengthRecord attribute must include a FixedLength attribute in each field.");
}
if (recordAttribute is DelimitedRecordAttribute && fi.IsDefined(typeof(FieldAlignAttribute), true))
{
throw new BadUsageException("The AlignAttribute is only valid for fixed length records and are used only for write purpouse.");
}
// PROCESS IN NORMAL CONDITIONS
if (attributes.Length > 0)
{
fieldAttb = attributes[0];
if (fieldAttb is FieldFixedLengthAttribute)
{
if (recordAttribute is DelimitedRecordAttribute)
{
throw new BadUsageException("The FieldFixedLengthAttribute is only for the FixedLengthRecords not for the delimited ones.");
}
var attb = ((FieldFixedLengthAttribute)fieldAttb);
var alignAttbs = (FieldAlignAttribute[])fi.GetCustomAttributes(typeof(FieldAlignAttribute), true);
FieldAlignAttribute align = null;
if (alignAttbs.Length > 0)
{
align = alignAttbs[0];
}
res = new FixedLengthField(fi, attb.Length, align);
((FixedLengthField)res).mFixedMode = ((FixedLengthRecordAttribute)recordAttribute).mFixedMode;
}
else if (fieldAttb is FieldDelimiterAttribute)
{
if (recordAttribute is FixedLengthRecordAttribute)
{
throw new BadUsageException("The DelimitedAttribute is only for DelimitedRecords not for the fixed ones.");
}
res = new DelimitedField(fi, ((FieldDelimiterAttribute)fieldAttb).mSeparator);
}
else
{
throw new BadUsageException("Custom TypedRecords not currently supported.");
}
}
else // attributes.Length == 0
{
if (recordAttribute is DelimitedRecordAttribute)
{
res = new DelimitedField(fi, ((DelimitedRecordAttribute)recordAttribute).Separator);
}
}
//----- TRIMMING
if (res != null)
{
var trim = (FieldTrimAttribute[])fi.GetCustomAttributes(typeof(FieldTrimAttribute), true);
if (trim.Length > 0)
{
res.mTrimMode = trim[0].TrimMode;
res.mTrimChars = trim[0].TrimChars;
}
var quotedAttributes = (FieldQuotedAttribute[])fi.GetCustomAttributes(typeof(FieldQuotedAttribute), true);
if (quotedAttributes.Length > 0)
{
if (res is FixedLengthField)
{
throw new BadUsageException("The QuotedAttribute can't be used in FixedLength fields.");
}
((DelimitedField)res).mQuoteChar = quotedAttributes[0].QuoteChar;
((DelimitedField)res).mQuoteMode = quotedAttributes[0].QuoteMode;
((DelimitedField)res).mQuoteMultiline = quotedAttributes[0].QuoteMultiline;
}
var optionalAttribs = (FieldOptionalAttribute[])fi.GetCustomAttributes(typeof(FieldOptionalAttribute), true);
if (optionalAttribs.Length > 0)
{
res.mIsOptional = true;
}
else if (someOptional)
{
throw new BadUsageException("When you define a field as FieldOptional, the next fields must be marked with the same attribute. ( Try adding [FieldOptional] to " + res.mFieldInfo.Name + " )");
}
res.mInNewLine = fi.IsDefined(typeof(FieldInNewLineAttribute), true);
}
return(res);
}
