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.");
}
FieldFixedLengthAttribute attb = ((FieldFixedLengthAttribute)fieldAttb);
FieldAlignAttribute[] alignAttbs = (FieldAlignAttribute[])fi.GetCustomAttributes(typeof(FieldAlignAttribute), true);
FieldAlignAttribute align = null;
if (alignAttbs.Length > 0)
{
align = alignAttbs[0];
}
res = new FixedLengthField(fi, attb.Length, align);
}
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).Separator);
}
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)
{
FieldTrimAttribute[] trim = (FieldTrimAttribute[])fi.GetCustomAttributes(typeof(FieldTrimAttribute), true);
if (trim.Length > 0)
{
res.mTrimMode = trim[0].TrimMode;
res.mTrimChars = trim[0].TrimChars;
}
FieldQuotedAttribute[] 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;
}
FieldOptionalAttribute[] 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);
}
public static FieldBase CreateField(FieldInfo fi, TypedRecordAttribute recordAttribute)
{
// 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 (recordAttribute is FixedLengthRecordAttribute && attributes.Length == 0)
{
throw new BadUsageException("The field: '" + fi.Name + "' must be marked the FieldFixedLength attribute because the record class is marked with FixedLengthRecord.");
}
if (attributes.Length > 1)
{
throw new BadUsageException("The field: '" + fi.Name + "' has a FieldFixedLength and a FieldDelimiter attribute.");
}
if (recordAttribute is DelimitedRecordAttribute && fi.IsDefined(typeof(FieldAlignAttribute), false))
{
throw new BadUsageException("The field: '" + fi.Name + "' can't be marked with FieldAlign attribute, it is only valid for fixed length records and are used only for write purpouse.");
}
if (fi.FieldType.IsArray == false && fi.IsDefined(typeof(FieldArrayLengthAttribute), false))
{
throw new BadUsageException("The field: '" + fi.Name + "' can't be marked with FieldArrayLength attribute is only valid for array fields.");
}
// PROCESS IN NORMAL CONDITIONS
if (attributes.Length > 0)
{
fieldAttb = attributes[0];
if (fieldAttb is FieldFixedLengthAttribute)
{
// Fixed Field
if (recordAttribute is DelimitedRecordAttribute)
{
throw new BadUsageException("The field: '" + fi.Name + "' can't be marked with FieldFixedLength attribute, it is only for the FixedLengthRecords not for delimited ones.");
}
FieldFixedLengthAttribute attb = ((FieldFixedLengthAttribute)fieldAttb);
FieldAlignAttribute[] alignAttbs = (FieldAlignAttribute[])fi.GetCustomAttributes(typeof(FieldAlignAttribute), false);
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)
{
// Delimited Field
if (recordAttribute is FixedLengthRecordAttribute)
{
throw new BadUsageException("The field: '" + fi.Name + "' can't be marked with FieldDelimiter attribute, it is only for DelimitedRecords not for fixed ones.");
}
res = new DelimitedField(fi, ((FieldDelimiterAttribute)fieldAttb).mSeparator);
}
else
{
throw new BadUsageException("Custom Record Types are not currently supported. And sure will never be :P (You must not be here)");
}
}
else // attributes.Length == 0
{
if (recordAttribute is DelimitedRecordAttribute)
{
res = new DelimitedField(fi, ((DelimitedRecordAttribute)recordAttribute).Separator);
}
}
if (res != null)
{
// Trim Related
FieldTrimAttribute[] trim = (FieldTrimAttribute[])fi.GetCustomAttributes(typeof(FieldTrimAttribute), false);
if (trim.Length > 0)
{
res.mTrimMode = trim[0].TrimMode;
res.mTrimChars = trim[0].TrimChars;
}
// Quote Related
FieldQuotedAttribute[] quotedAttributes = (FieldQuotedAttribute[])fi.GetCustomAttributes(typeof(FieldQuotedAttribute), false);
if (quotedAttributes.Length > 0)
{
if (res is FixedLengthField)
{
throw new BadUsageException("The field: '" + fi.Name + "' can't be marked with FieldQuoted attribute, it is only for the delimited records.");
}
((DelimitedField)res).mQuoteChar = quotedAttributes[0].QuoteChar;
((DelimitedField)res).mQuoteMode = quotedAttributes[0].QuoteMode;
((DelimitedField)res).mQuoteMultiline = quotedAttributes[0].QuoteMultiline;
}
// Optional Related
FieldOptionalAttribute[] optionalAttribs = (FieldOptionalAttribute[])fi.GetCustomAttributes(typeof(FieldOptionalAttribute), false);
if (optionalAttribs.Length > 0)
{
res.mIsOptional = true;
}
// NewLine Related
res.mInNewLine = fi.IsDefined(typeof(FieldInNewLineAttribute), true);
// Array Related
if (fi.FieldType.IsArray)
{
res.mIsArray = true;
res.mArrayType = fi.FieldType.GetElementType();
FieldArrayLengthAttribute[] arrayAttribs = (FieldArrayLengthAttribute[])fi.GetCustomAttributes(typeof(FieldArrayLengthAttribute), false);
if (arrayAttribs.Length > 0)
{
res.mArrayMinLength = arrayAttribs[0].mMinLength;
res.mArrayMaxLength = arrayAttribs[0].mMaxLength;
if (res.mArrayMaxLength < res.mArrayMinLength ||
res.mArrayMinLength < 0 ||
res.mArrayMaxLength <= 0)
{
throw new BadUsageException("The field: " + fi.Name + " has invalid length values in the [FieldArrayLength] attribute.");
}
}
else
{
// MinValue indicates that there is no FieldArrayLength in the array
res.mArrayMinLength = int.MinValue;
res.mArrayMaxLength = int.MaxValue;
}
}
}
return(res);
}
