/// <summary>
/// verifies parser fields - class properties
/// </summary>
/// <param name="parser">parser</param>
public void VerifyHeaders(IFieldBasedParser <TRecord> parser)
{
Arguments.NotNull(parser, nameof(parser));
// Verify Class:
// For each property of TModel check if class properties has corresponding csv fields
// save header -> propertyInfo in dictionary
var classProperties = typeof(TRecord).GetProperties();
var fileHeaders = parser.FieldHeaders().Select(m => m.Trim('|').ToUpperInvariant());
var extraProperties = new List <string>();
foreach (var property in classProperties)
{
var normalizedName = property.Name.ToUpperInvariant();
var aliases = ReflectionHelper.Attributes <MappingAliasAttribute>(property);
if (fileHeaders.Contains(normalizedName))
{
this.headerToProperty.Add(normalizedName, property);
}
else if (aliases != null)
{
foreach (MappingAliasAttribute alias in aliases)
{
var normalizedAlias = alias.AlternateName.ToUpperInvariant();
if (fileHeaders.Contains(normalizedAlias))
{
this.headerToProperty.Add(normalizedAlias, property);
break;
}
}
}
else
{
extraProperties.Add(property.Name);
}
}
// Verify Header:
// For each header, check if parser fields have matching class properties:
// check if header in dictionary
var extraFileHeaders = new List <string>();
foreach (var header in fileHeaders)
{
if (!this.headerToProperty.ContainsKey(header))
{
extraFileHeaders.Add(header);
}
}
if (extraFileHeaders.Count + extraProperties.Count > 0)
{
var message = string.Format(
CultureInfo.InvariantCulture,
"headers absent in properties: {0}\n properties absent in headers: {1}",
string.Join(", ", extraFileHeaders.ToArray()),
string.Join(", ", extraProperties.ToArray()));
var stopFlag = (!this.allowFileToHaveExtraProperties && extraFileHeaders.Any()) || (!this.allowClassToHaveExtraProperties && extraProperties.Any());
if (stopFlag)
{
throw new InvalidOperationException(message);
}
}
}