/// <summary>
/// Confirm all fields are either ordered or unordered
/// </summary>
/// <param name="currentField">Newest field</param>
/// <param name="resFields">Other fields we have found</param>
private static void CheckForOrderProblems(FieldBase currentField, List <FieldBase> resFields)
{
if (currentField.FieldOrder.HasValue)
{
// If one field has order number set, all others must also have an order number
var fieldWithoutOrder = resFields.Find(x => x.FieldOrder.HasValue == false);
if (fieldWithoutOrder != null)
{
throw new BadUsageException(Messages.Errors.PartialFieldOrder
.FieldName(fieldWithoutOrder.FieldInfo.Name)
.Text);
}
// No other field should have the same order number
var fieldWithSameOrder =
resFields.Find(x => x != currentField && x.FieldOrder == currentField.FieldOrder);
if (fieldWithSameOrder != null)
{
throw new BadUsageException(Messages.Errors.SameFieldOrder
.FieldName1(currentField.FieldInfo.Name)
.FieldName2(fieldWithSameOrder.FieldInfo.Name)
.Text);
}
}
else
{
// No other field should have order number set
var fieldWithOrder = resFields.Find(x => x.FieldOrder.HasValue);
if (fieldWithOrder != null)
{
var autoPropertyName = FieldBase.AutoPropertyName(currentField.FieldInfo);
if (string.IsNullOrEmpty(autoPropertyName))
{
throw new BadUsageException(Messages.Errors.PartialFieldOrder
.FieldName(currentField.FieldInfo.Name)
.Text);
}
else
{
throw new BadUsageException(Messages.Errors.PartialFieldOrderInAutoProperty
.PropertyName(autoPropertyName)
.Text);
}
}
}
}
/// <summary>
/// Check that once one field is optional all following fields are optional
/// <para/>
/// Check that arrays in the middle of a record are of fixed length
/// </summary>
/// <param name="resFields">List of fields to extract</param>
private static void CheckForOptionalAndArrayProblems(List <FieldBase> resFields)
{
for (int i = 0; i < resFields.Count; i++)
{
var currentField = resFields[i];
// Dont check the first field
if (i < 1)
{
continue;
}
FieldBase prevField = resFields[i - 1];
prevField.NextIsOptional = currentField.IsOptional;
// Check for optional problems. Previous is optional but current is not
if (prevField.IsOptional
&&
currentField.IsOptional == false
&&
currentField.InNewLine == false)
{
throw new BadUsageException(Messages.Errors.ExpectingFieldOptional
.FieldName(prevField.FieldInfo.Name)
.Text);
}
// Check for an array array in the middle of a record that is not a fixed length
if (prevField.IsArray)
{
if (prevField.ArrayMinLength == Int32.MinValue)
{
throw new BadUsageException(Messages.Errors.MissingFieldArrayLenghtInNotLastField
.FieldName(prevField.FieldInfo.Name)
.Text);
}
if (prevField.ArrayMinLength != prevField.ArrayMaxLength)
{
throw new BadUsageException(Messages.Errors.SameMinMaxLengthForArrayNotLastField
.FieldName(prevField.FieldInfo.Name)
.Text);
}
}
}
}
private void CreateAssingMethods()
{
if (mCreateHandler != null)
{
return;
}
DynamicMethod dm = new DynamicMethod("_CreateAndAssing_FH_RT_", MethodAttributes.Static | MethodAttributes.Public, CallingConventions.Standard, typeof(object), new Type[] { typeof(object[]) }, mRecordType, true);
//dm.InitLocals = false;
ILGenerator generator = dm.GetILGenerator();
generator.DeclareLocal(mRecordType);
//generator.DeclareLocal(typeof(object));
generator.Emit(OpCodes.Newobj, mRecordConstructor);
generator.Emit(OpCodes.Stloc_0);
for (int i = 0; i < mFieldCount; i++)
{
FieldBase field = mFields[i];
generator.Emit(OpCodes.Ldloc_0);
generator.Emit(OpCodes.Ldarg_0);
generator.Emit(OpCodes.Ldc_I4, i);
generator.Emit(OpCodes.Ldelem_Ref);
if (field.FieldType.IsValueType)
{
generator.Emit(OpCodes.Unbox_Any, field.FieldType);
}
else
{
generator.Emit(OpCodes.Castclass, field.FieldType);
}
generator.Emit(OpCodes.Stfld, field.mFieldInfo);
//generator.EmitCall();
}
// return the value
generator.Emit(OpCodes.Ldloc_0);
generator.Emit(OpCodes.Ret);
mCreateHandler = (CreateAndAssignCallback)dm.CreateDelegate(typeof(CreateAndAssignCallback));
}
/// <summary>
/// Confirm all fields are either ordered or unordered
/// </summary>
/// <param name="currentField">Newest field</param>
/// <param name="resFields">Other fields we have found</param>
private static void CheckForOrderProblems(FieldBase currentField, List <FieldBase> resFields)
{
if (currentField.FieldOrder.HasValue)
{
// If one field has order number set, all others must also have an order number
var fieldWithoutOrder = resFields.Find(x => x.FieldOrder.HasValue == false);
if (fieldWithoutOrder != null)
{
throw new BadUsageException($"The field: {fieldWithoutOrder.FieldInfo.Name} must be marked with FieldOrder because if you use this attribute in one field you must also use it on all of them.");
}
// No other field should have the same order number
var fieldWithSameOrder =
resFields.Find(x => x != currentField && x.FieldOrder == currentField.FieldOrder);
if (fieldWithSameOrder != null)
{
throw new BadUsageException($"The field: {currentField.FieldInfo.Name} has the same FieldOrder as: {fieldWithSameOrder.FieldInfo.Name}. You must use different values");
}
}
else
{
// No other field should have order number set
var fieldWithOrder = resFields.Find(x => x.FieldOrder.HasValue);
if (fieldWithOrder != null)
{
var autoPropertyName = FieldBase.AutoPropertyName(currentField.FieldInfo);
if (string.IsNullOrEmpty(autoPropertyName))
{
throw new BadUsageException($"The field: {currentField.FieldInfo.Name} must be marked with FieldOrder because if you use this attribute in one field you must also use it on all of them.");
}
else
{
throw new BadUsageException(
$"The auto property: {autoPropertyName} must be marked with FieldOrder because if you use this attribute in one field you must also use it on all of them.");
}
}
}
}
/// <summary>
/// Check that once one field is optional all following fields are optional
/// <para/>
/// Check that arrays in the middle of a record are of fixed length
/// </summary>
/// <param name="resFields">List of fields to extract</param>
private static void CheckForOptionalAndArrayProblems(List <FieldBase> resFields)
{
for (int i = 0; i < resFields.Count; i++)
{
var currentField = resFields[i];
// Dont check the first field
if (i < 1)
{
continue;
}
FieldBase prevField = resFields[i - 1];
// Check for optional problems. Previous is optional but current is not
if (prevField.IsOptional
&&
currentField.IsOptional == false
&&
currentField.InNewLine == false)
{
throw new BadUsageException($"The field: {prevField.FieldInfo.Name} must be marked as optional because the previous field is marked as optional. (Try adding [FieldOptional] to {prevField.FieldInfo.Name})");
}
// Check for an array array in the middle of a record that is not a fixed length
if (prevField.IsArray)
{
if (prevField.ArrayMinLength == int.MinValue)
{
throw new BadUsageException($"The field: {prevField.FieldInfo.Name} is of an array type and must contain a [FieldArrayLength] attribute because it is not the last field");
}
if (prevField.ArrayMinLength != prevField.ArrayMaxLength)
{
throw new BadUsageException($"The array field: {prevField.FieldInfo.Name} must be of a fixed length because it is not the last field of the class, i.e. the min and max length of the [FieldArrayLength] attribute must be the same.");
}
}
}
}
/// <summary>
/// Confirm all fields are either ordered or unordered
/// </summary>
/// <param name="currentField">Newest field</param>
/// <param name="resFields">Other fields we have found</param>
private static void CheckForOrderProblems(FieldBase currentField, List<FieldBase> resFields)
{
if (currentField.FieldOrder.HasValue) {
var othersWithoutOrder = resFields.FindAll(x => x.FieldOrder.HasValue == false);
if (othersWithoutOrder.Count > 0) {
throw new BadUsageException(Messages.Errors.PartialFieldOrder
.FieldName(othersWithoutOrder[0].FieldInfo.Name)
.Text);
}
// Same Number
var otherWithSameOrder =
resFields.FindAll(x => x != currentField && x.FieldOrder == currentField.FieldOrder);
if (otherWithSameOrder.Count > 0) {
throw new BadUsageException(Messages.Errors.SameFieldOrder
.FieldName1(currentField.FieldInfo.Name)
.FieldName2(otherWithSameOrder[0].FieldInfo.Name)
.Text);
}
}
else {
var othersWithOrder = resFields.FindAll(x => x.FieldOrder.HasValue).Count;
if (othersWithOrder > 0) {
throw new BadUsageException(Messages.Errors.PartialFieldOrder
.FieldName(currentField.FieldInfo.Name)
.Text);
}
}
}
/// <summary>
/// Check the Attributes on the field and return a structure containing
/// the settings for this file.
/// </summary>
/// <param name="fi">Information about this field</param>
/// <param name="recordAttribute">Type of record we are reading</param>
/// <returns>Null if not used</returns>
public static FieldBase CreateField(FieldInfo fi, TypedRecordAttribute recordAttribute)
{
// If ignored, return null
#pragma warning disable 612,618 // disable obsole warning
if (fi.IsDefined(typeof(FieldNotInFileAttribute), true) || fi.IsDefined(typeof(FieldIgnoredAttribute), true))
#pragma warning restore 612,618
{
return(null);
}
FieldBase res = null;
var attributes = (FieldAttribute[])fi.GetCustomAttributes(typeof(FieldAttribute), true);
// CHECK USAGE ERRORS !!!
// Fixed length record and no attributes at all
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 purpose.");
}
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)
{
FieldAttribute 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.");
}
var attbFixedLength = (FieldFixedLengthAttribute)fieldAttb;
var attbAlign = Attributes.GetFirst <FieldAlignAttribute>(fi);
res = new FixedLengthField(fi, attbFixedLength.Length, attbAlign);
((FixedLengthField)res).FixedMode = ((FixedLengthRecordAttribute)recordAttribute).FixedMode;
}
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).Delimiter);
}
else
{
throw new BadUsageException("Custom field attributes are not currently supported. Unknown attribute: " + fieldAttb.GetType().Name + " on field: " + fi.Name);
}
}
else // attributes.Length == 0
{
var delimitedRecordAttribute = recordAttribute as DelimitedRecordAttribute;
if (delimitedRecordAttribute != null)
{
res = new DelimitedField(fi, delimitedRecordAttribute.Separator);
}
}
if (res != null)
{
// FieldDiscarded
res.Discarded = fi.IsDefined(typeof(FieldValueDiscardedAttribute), false);
// FieldTrim
Attributes.WorkWithFirst <FieldTrimAttribute>(fi, (x) =>
{
res.TrimMode = x.TrimMode;
res.TrimChars = x.TrimChars;
});
// FieldQuoted
Attributes.WorkWithFirst <FieldQuotedAttribute>(fi, (x) =>
{
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).QuoteChar =
x.QuoteChar;
((DelimitedField)res).QuoteMode =
x.QuoteMode;
((DelimitedField)res).QuoteMultiline =
x.QuoteMultiline;
});
// FieldOrder
Attributes.WorkWithFirst <FieldOrderAttribute>(fi, x => res.FieldOrder = x.Order);
// FieldOptional
res.IsOptional = fi.IsDefined(typeof(FieldOptionalAttribute), false);
// FieldInNewLine
res.InNewLine = fi.IsDefined(typeof(FieldInNewLineAttribute), false);
// FieldArrayLength
if (fi.FieldType.IsArray)
{
res.IsArray = true;
res.ArrayType = fi.FieldType.GetElementType();
// MinValue indicates that there is no FieldArrayLength in the array
res.ArrayMinLength = int.MinValue;
res.ArrayMaxLength = int.MaxValue;
Attributes.WorkWithFirst <FieldArrayLengthAttribute>(fi, (x) =>
{
res.ArrayMinLength = x.mMinLength;
res.ArrayMaxLength = x.mMaxLength;
if (res.ArrayMaxLength < res.ArrayMinLength ||
res.ArrayMinLength < 0 ||
res.ArrayMaxLength <= 0)
{
throw new BadUsageException("The field: " + fi.Name + " has invalid length values in the [FieldArrayLength] attribute.");
}
});
}
// NullFieldOnError
res.NullFieldOnError = fi.IsDefined(typeof(FieldNullOnErrorAttribute), false);
}
if (fi.IsDefined(typeof(CompilerGeneratedAttribute), false))
{
if (fi.Name.EndsWith("__BackingField") && fi.Name.StartsWith("<") && fi.Name.Contains(">"))
{
res.FieldFriendlyName = fi.Name.Substring(1, fi.Name.IndexOf(">") - 1);
}
}
if (string.IsNullOrEmpty(res.FieldFriendlyName))
{
res.FieldFriendlyName = res.FieldName;
}
return(res);
}
/*
* private static readonly char[] mWhitespaceChars = new[] {
* '\t', '\n', '\v', '\f', '\r', ' ', '\x00a0', '\u2000', '\u2001', '\u2002', '\u2003', '\u2004', '\u2005',
* '\u2006', '\u2007', '\u2008',
* '\u2009', '\u200a', '\u200b', '\u3000', '\ufeff'
*/
#endregion
#region " CreateField "
/// <summary>
/// Check the Attributes on the field and return a structure containing
/// the settings for this file.
/// </summary>
/// <param name="fi">Information about this field</param>
/// <param name="recordAttribute">Type of record we are reading</param>
/// <returns>Null if not used</returns>
public static FieldBase CreateField(FieldInfo fi, TypedRecordAttribute recordAttribute)
{
FieldBase res = null;
MemberInfo mi = fi;
var memberName = "The field: '" + fi.Name;
Type fieldType = fi.FieldType;
string fieldFriendlyName = AutoPropertyName(fi);
if (string.IsNullOrEmpty(fieldFriendlyName) == false)
{
var prop = fi.DeclaringType.GetProperty(fieldFriendlyName);
if (prop != null)
{
memberName = "The property: '" + prop.Name;
mi = prop;
}
else
{
fieldFriendlyName = null;
}
}
// If ignored, return null
#pragma warning disable 612,618 // disable obsolete warning
if (mi.IsDefined(typeof(FieldNotInFileAttribute), true) ||
mi.IsDefined(typeof(FieldIgnoredAttribute), true) ||
mi.IsDefined(typeof(FieldHiddenAttribute), true))
#pragma warning restore 612,618
{
return(null);
}
var attributes = (FieldAttribute[])mi.GetCustomAttributes(typeof(FieldAttribute), true);
// CHECK USAGE ERRORS !!!
// Fixed length record and no attributes at all
if (recordAttribute is FixedLengthRecordAttribute &&
attributes.Length == 0)
{
throw new BadUsageException(memberName +
"' must be marked the FieldFixedLength attribute because the record class is marked with FixedLengthRecord.");
}
if (attributes.Length > 1)
{
throw new BadUsageException(memberName +
"' has a FieldFixedLength and a FieldDelimiter attribute.");
}
if (recordAttribute is DelimitedRecordAttribute &&
mi.IsDefined(typeof(FieldAlignAttribute), false))
{
throw new BadUsageException(memberName +
"' can't be marked with FieldAlign attribute, it is only valid for fixed length records and are used only for write purpose.");
}
if (fieldType.IsArray == false &&
mi.IsDefined(typeof(FieldArrayLengthAttribute), false))
{
throw new BadUsageException(memberName +
"' can't be marked with FieldArrayLength attribute is only valid for array fields.");
}
// PROCESS IN NORMAL CONDITIONS
if (attributes.Length > 0)
{
FieldAttribute fieldAttb = attributes[0];
if (fieldAttb is FieldFixedLengthAttribute)
{
// Fixed Field
if (recordAttribute is DelimitedRecordAttribute)
{
throw new BadUsageException(memberName +
"' can't be marked with FieldFixedLength attribute, it is only for the FixedLengthRecords not for delimited ones.");
}
var attbFixedLength = (FieldFixedLengthAttribute)fieldAttb;
var attbAlign = Attributes.GetFirst <FieldAlignAttribute>(mi);
res = new FixedLengthField(fi, attbFixedLength.Length, attbAlign);
((FixedLengthField)res).FixedMode = ((FixedLengthRecordAttribute)recordAttribute).FixedMode;
}
else if (fieldAttb is FieldDelimiterAttribute)
{
// Delimited Field
if (recordAttribute is FixedLengthRecordAttribute)
{
throw new BadUsageException(memberName +
"' can't be marked with FieldDelimiter attribute, it is only for DelimitedRecords not for fixed ones.");
}
res = new DelimitedField(fi, ((FieldDelimiterAttribute)fieldAttb).Delimiter);
}
else
{
throw new BadUsageException(
"Custom field attributes are not currently supported. Unknown attribute: " +
fieldAttb.GetType().Name + " on field: " + fi.Name);
}
}
else // attributes.Length == 0
{
var delimitedRecordAttribute = recordAttribute as DelimitedRecordAttribute;
if (delimitedRecordAttribute != null)
{
res = new DelimitedField(fi, delimitedRecordAttribute.Separator);
}
}
if (res != null)
{
// FieldDiscarded
res.Discarded = mi.IsDefined(typeof(FieldValueDiscardedAttribute), false);
// FieldTrim
Attributes.WorkWithFirst <FieldTrimAttribute>(mi,
(x) => {
res.TrimMode = x.TrimMode;
res.TrimChars = x.TrimChars;
});
// FieldQuoted
Attributes.WorkWithFirst <FieldQuotedAttribute>(mi,
(x) => {
if (res is FixedLengthField)
{
throw new BadUsageException(
memberName +
"' can't be marked with FieldQuoted attribute, it is only for the delimited records.");
}
((DelimitedField)res).QuoteChar =
x.QuoteChar;
((DelimitedField)res).QuoteMode =
x.QuoteMode;
((DelimitedField)res).QuoteMultiline =
x.QuoteMultiline;
});
// FieldOrder
Attributes.WorkWithFirst <FieldOrderAttribute>(mi, x => res.FieldOrder = x.Order);
// FieldCaption
Attributes.WorkWithFirst <FieldCaptionAttribute>(mi, x => res.FieldCaption = x.Caption);
// FieldOptional
res.IsOptional = mi.IsDefined(typeof(FieldOptionalAttribute), false);
// FieldInNewLine
res.InNewLine = mi.IsDefined(typeof(FieldInNewLineAttribute), false);
// FieldValidatorAttributes - for use in custom validation of fields
res.Validators = new List <Interfaces.IFieldValidate>((FieldValidateAttribute[])mi.GetCustomAttributes(typeof(FieldValidateAttribute), false));
// FieldArrayLength
if (fieldType.IsArray)
{
res.IsArray = true;
res.ArrayType = fieldType.GetElementType();
// MinValue indicates that there is no FieldArrayLength in the array
res.ArrayMinLength = int.MinValue;
res.ArrayMaxLength = int.MaxValue;
Attributes.WorkWithFirst <FieldArrayLengthAttribute>(mi,
(x) => {
res.ArrayMinLength = x.MinLength;
res.ArrayMaxLength = x.MaxLength;
if (res.ArrayMaxLength < res.ArrayMinLength ||
res.ArrayMinLength < 0 ||
res.ArrayMaxLength <= 0)
{
throw new BadUsageException(memberName +
" has invalid length values in the [FieldArrayLength] attribute.");
}
});
}
}
if (string.IsNullOrEmpty(res.FieldFriendlyName))
{
res.FieldFriendlyName = res.FieldName;
}
return(res);
}
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);
}
/// <summary>
/// Confirm all fields are either ordered or unordered
/// </summary>
/// <param name="currentField">Newest field</param>
/// <param name="resFields">Other fields we have found</param>
private static void CheckForOrderProblems(FieldBase currentField, List<FieldBase> resFields)
{
if (currentField.FieldOrder.HasValue) {
// If one field has order number set, all others must also have an order number
var fieldWithoutOrder = resFields.Find(x => x.FieldOrder.HasValue == false);
if (fieldWithoutOrder != null) {
throw new BadUsageException(Messages.Errors.PartialFieldOrder
.FieldName(fieldWithoutOrder.FieldInfo.Name)
.Text);
}
// No other field should have the same order number
var fieldWithSameOrder =
resFields.Find(x => x != currentField && x.FieldOrder == currentField.FieldOrder);
if (fieldWithSameOrder != null)
{
throw new BadUsageException(Messages.Errors.SameFieldOrder
.FieldName1(currentField.FieldInfo.Name)
.FieldName2(fieldWithSameOrder.FieldInfo.Name)
.Text);
}
}
else {
// No other field should have order number set
var fieldWithOrder = resFields.Find(x => x.FieldOrder.HasValue);
if (fieldWithOrder != null)
{
var autoPropertyName = FieldBase.AutoPropertyName(currentField.FieldInfo);
if (string.IsNullOrEmpty(autoPropertyName))
throw new BadUsageException(Messages.Errors.PartialFieldOrder
.FieldName(currentField.FieldInfo.Name)
.Text);
else
throw new BadUsageException(Messages.Errors.PartialFieldOrderInAutoProperty
.PropertyName(autoPropertyName)
.Text);
}
}
}
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);
}
