private void DiscoverRecordFields(Type recordType)
{
RecordFieldConfigurations.Clear();
foreach (PropertyDescriptor pd in TypeDescriptor.GetProperties(recordType).AsTypedEnumerable <PropertyDescriptor>().Where(pd => pd.Attributes.OfType <ChoCSVRecordFieldAttribute>().Any()))
{
var obj = new ChoCSVRecordFieldConfiguration(pd.Name, pd.Attributes.OfType <ChoCSVRecordFieldAttribute>().First());
obj.FieldType = pd.PropertyType;
RecordFieldConfigurations.Add(obj);
}
}
public override void Validate()
{
if (RecordFieldConfigurations.Count > 0)
{
MaxFieldPosition = RecordFieldConfigurations.Max(r => r.FieldPosition);
}
else
{
throw new ChoRecordConfigurationException("No record fields specified.");
}
RecordFieldConfigurationsDict = RecordFieldConfigurations.Where(i => !i.Name.IsNullOrWhiteSpace()).ToDictionary(i => i.Name);
if (Delimiter.IsNullOrWhiteSpace())
{
Delimiter = Culture.TextInfo.ListSeparator;
if (Delimiter.IsNullOrWhiteSpace())
{
Delimiter = ",";
}
}
base.Validate();
if (Delimiter.IsNullOrWhiteSpace())
{
throw new ChoRecordConfigurationException("Delimiter can't be null or whitespace.");
}
if (Delimiter == EOLDelimiter)
{
throw new ChoRecordConfigurationException("Delimiter [{0}] can't be same as EODDelimiter [{1}]".FormatString(Delimiter, EOLDelimiter));
}
if (Delimiter.Contains(QuoteChar))
{
throw new ChoRecordConfigurationException("QuoteChar [{0}] can't be one of Delimiter characters [{1}]".FormatString(QuoteChar, Delimiter));
}
if (Comments.Contains(Delimiter))
{
throw new ChoRecordConfigurationException("One of the Comments contains Delimiter. Not allowed.");
}
//Validate Header
if (CSVFileHeaderConfiguration != null)
{
CSVFileHeaderConfiguration.Validate(this);
}
//Validate each record field
foreach (var fieldConfig in RecordFieldConfigurations)
{
fieldConfig.Validate(this);
}
if (!CSVFileHeaderConfiguration.HasHeaderRecord)
{
//Check if any field has 0
if (RecordFieldConfigurations.Where(i => i.FieldPosition <= 0).Count() > 0)
{
throw new ChoRecordConfigurationException("Some fields contain invalid field position. All field positions must be > 0.");
}
//Check field position for duplicate
int[] dupPositions = RecordFieldConfigurations.GroupBy(i => i.FieldPosition)
.Where(g => g.Count() > 1)
.Select(g => g.Key).ToArray();
if (dupPositions.Length > 0)
{
throw new ChoRecordConfigurationException("Duplicate field positions [Index: {0}] specified to record fields.".FormatString(String.Join(",", dupPositions)));
}
}
else
{
//Check if any field has empty names
if (RecordFieldConfigurations.Where(i => i.FieldName.IsNullOrWhiteSpace()).Count() > 0)
{
throw new ChoRecordConfigurationException("Some fields has empty field name specified.");
}
//Check field names for duplicate
string[] dupFields = RecordFieldConfigurations.GroupBy(i => i.FieldName, CSVFileHeaderConfiguration.StringComparer)
.Where(g => g.Count() > 1)
.Select(g => g.Key).ToArray();
if (dupFields.Length > 0)
{
throw new ChoRecordConfigurationException("Duplicate field names [Name: {0}] specified to record fields.".FormatString(String.Join(",", dupFields)));
}
}
}
public override void Validate(object state)
{
base.Validate(state);
if (Delimiter.IsNullOrWhiteSpace())
throw new ChoRecordConfigurationException("Delimiter can't be null or whitespace.");
if (Delimiter == EOLDelimiter)
throw new ChoRecordConfigurationException("Delimiter [{0}] can't be same as EODDelimiter [{1}]".FormatString(Delimiter, EOLDelimiter));
if (Delimiter.Contains(QuoteChar))
throw new ChoRecordConfigurationException("QuoteChar [{0}] can't be one of Delimiter characters [{1}]".FormatString(QuoteChar, Delimiter));
if (Comments.Contains(Delimiter))
throw new ChoRecordConfigurationException("One of the Comments contains Delimiter. Not allowed.");
//Validate Header
if (CSVFileHeaderConfiguration != null)
CSVFileHeaderConfiguration.Validate(this);
string[] headers = state as string[];
if (AutoDiscoverColumns
&& RecordFieldConfigurations.Count == 0 && headers != null)
{
int index = 0;
RecordFieldConfigurations = (from header in headers
select new ChoCSVRecordFieldConfiguration(header, ++index)).ToList();
}
if (RecordFieldConfigurations.Count > 0)
MaxFieldPosition = RecordFieldConfigurations.Max(r => r.FieldPosition);
else
throw new ChoRecordConfigurationException("No record fields specified.");
RecordFieldConfigurationsDict = RecordFieldConfigurations.Where(i => !i.Name.IsNullOrWhiteSpace()).ToDictionary(i => i.Name);
//Validate each record field
foreach (var fieldConfig in RecordFieldConfigurations)
fieldConfig.Validate(this);
if (!CSVFileHeaderConfiguration.HasHeaderRecord)
{
//Check if any field has 0
if (RecordFieldConfigurations.Where(i => i.FieldPosition <= 0).Count() > 0)
throw new ChoRecordConfigurationException("Some fields contain invalid field position. All field positions must be > 0.");
//Check field position for duplicate
int[] dupPositions = RecordFieldConfigurations.GroupBy(i => i.FieldPosition)
.Where(g => g.Count() > 1)
.Select(g => g.Key).ToArray();
if (dupPositions.Length > 0)
throw new ChoRecordConfigurationException("Duplicate field positions [Index: {0}] specified to record fields.".FormatString(String.Join(",", dupPositions)));
}
else
{
//Check if any field has empty names
if (RecordFieldConfigurations.Where(i => i.FieldName.IsNullOrWhiteSpace()).Count() > 0)
throw new ChoRecordConfigurationException("Some fields has empty field name specified.");
//Check field names for duplicate
string[] dupFields = RecordFieldConfigurations.GroupBy(i => i.FieldName, CSVFileHeaderConfiguration.StringComparer)
.Where(g => g.Count() > 1)
.Select(g => g.Key).ToArray();
if (dupFields.Length > 0)
throw new ChoRecordConfigurationException("Duplicate field names [Name: {0}] specified to record fields.".FormatString(String.Join(",", dupFields)));
}
}
