private ValidatorDefinition ExtractValidatorDefinition(Type type)
{
var rules = typeValidationRuleBuilder.Build(type, "");
if (!rules.Any())
{
return(null);
}
var ruleset = rules.Aggregate((a, b) => a + "; " + b);
return(new ValidatorDefinition(DataApiClient.GetCollectionName(type), ValidatorType.TextRules, ruleset));
}
public List <string> Build(PropertyInfo property, string parentPath)
{
var propertyRules = new List <string>();
var propertyName = property.Name;
var propertyPath = string.IsNullOrEmpty(parentPath) ? propertyName : $"{parentPath}.{propertyName}";
var propertyType = property.PropertyType;
var dataTypeRule = BuildDataTypeRule(propertyPath, propertyType);
if (dataTypeRule != null)
{
propertyRules.Add(dataTypeRule);
}
var validationAttributes = property.GetCustomAttributes <ValidationAttribute>().ToList();
var isOptional = !validationAttributes.Select(x => x.GetType())
.Intersect(
new[]
{
typeof(RequiredAttribute),
typeof(RequiredIfPropertyEqualToAttribute),
typeof(RequiredIfPropertyNotEqualToAttribute)
}).Any();
foreach (var validationAttribute in validationAttributes)
{
string rule = null;
switch (validationAttribute)
{
case ItemCountAttribute itemCountAttribute:
rule = BuildItemCountRule(propertyPath, itemCountAttribute);
break;
case LessThanAttribute lessThanAttribute:
rule = BuildLessThan(propertyPath, lessThanAttribute);
break;
case NotEmptyAttribute notEmptyAttribute:
rule = BuildNotEmptyRule(propertyPath);
break;
case RangeOrNaNAttribute rangeOrNaNAttribute:
rule = BuildRangeRule(propertyPath, rangeOrNaNAttribute, allowNaN: true);
break;
case RequiredIfPropertyEqualToAttribute requiredIfPropertyHasValueAttribute:
rule = BuildRequiredIfPropertyHasValueRule(propertyPath, requiredIfPropertyHasValueAttribute);
break;
case RequiredIfPropertyNotEqualToAttribute requiredIfPropertyNotHasValueAttribute:
rule = BuildRequiredIfPropertyNotHasValueRule(propertyPath, requiredIfPropertyNotHasValueAttribute);
break;
case DataReferenceAttribute dataReferenceAttribute:
rule = BuildDataReferenceRule(propertyPath, dataReferenceAttribute);
break;
case GreaterThanAttribute greaterThanAttribute:
rule = BuildGreaterThan(propertyPath, greaterThanAttribute);
break;
case EmailAddressAttribute emailAddressAttribute:
rule = BuildRegularExpressionRule(propertyPath, new RegularExpressionAttribute("^[a-zA-Z0-9\\._-]+@[a-zA-Z0-9\\._-]+\\.[a-zA-Z0-9]+$"));
break;
case EnumDataTypeAttribute enumDataTypeAttribute:
if (enumDataTypeAttribute.CustomDataType != null)
{
propertyType = Assembly.GetAssembly(typeof(IId)).GetTypes()
.Where(t => t.IsEnum)
.SingleOrDefault(t => t.Name == enumDataTypeAttribute.CustomDataType);
}
else
{
throw new NotSupportedException();
}
break;
case UrlAttribute urlAttribute:
rule = BuildRegularExpressionRule(propertyPath, new RegularExpressionAttribute("^https?://.+$"));
break;
case DataTypeAttribute dataTypeAttribute:
if (dataTypeAttribute.CustomDataType != null)
{
propertyType = Assembly.GetAssembly(typeof(IId)).GetTypes()
.SingleOrDefault(t => t.Name == dataTypeAttribute.CustomDataType);
}
else
{
throw new NotSupportedException();
}
break;
case MaxLengthAttribute maxLengthAttribute:
if (propertyType == typeof(string))
{
rule = BuildStringLengthRule(propertyPath, new StringLengthAttribute(maxLengthAttribute.Length));
}
else if (propertyType.IsInstanceOfType(typeof(IList)))
{
rule = BuildItemCountRule(propertyPath, new ItemCountAttribute(0, maxLengthAttribute.Length));
}
else
{
throw new NotSupportedException();
}
break;
case MinLengthAttribute minLengthAttribute:
if (propertyType == typeof(string))
{
rule = BuildMinimumStringLengthRule(propertyPath, minLengthAttribute);
}
else if (propertyType.IsInstanceOfType(typeof(IList)))
{
rule = BuildMinimumItemsCountRule(propertyPath, minLengthAttribute);
}
else
{
throw new NotSupportedException();
}
break;
case RangeAttribute rangeAttribute:
rule = BuildRangeRule(propertyPath, rangeAttribute);
break;
case RegularExpressionAttribute regularExpressionAttribute:
rule = BuildRegularExpressionRule(propertyPath, regularExpressionAttribute);
break;
case RequiredAttribute requiredAttribute:
rule = BuildExistsRule(propertyPath);
break;
case StringLengthAttribute stringLengthAttribute:
rule = BuildStringLengthRule(propertyPath, stringLengthAttribute);
break;
}
if (rule == null)
{
continue;
}
if (isOptional)
{
rule += $" IF {BuildExistsRule(propertyPath)}";
}
propertyRules.Add(rule);
}
// Recurse to child-properties
if (propertyType != null &&
!propertyType.IsPrimitive &&
propertyPath.Count(c => c == '.') + 1 < maximumPathDepth)
{
var stringSerializedTypes = new [] { typeof(string), typeof(DateTime), typeof(DateTime?), typeof(TimeSpan), typeof(TimeSpan?), typeof(UnitValue) };
if (typeof(IDictionary).IsAssignableFrom(propertyType))
{
// Do nothing
}
else if (typeof(IList).IsAssignableFrom(propertyType))
{
var itemType = propertyType.IsArray
? propertyType.GetElementType()
: propertyType.GenericTypeArguments.SingleOrDefault();
if (itemType != null && !itemType.InSet(stringSerializedTypes))
{
propertyRules.AddRange(typeValidationRuleBuilder.Build(itemType, propertyPath));
}
}
else if (propertyType.InSet(stringSerializedTypes)) // These are serialized to string without further hierarchy
{
// Go no deeper
}
else
{
foreach (var childProperty in property.PropertyType.GetProperties())
{
propertyRules.AddRange(Build(childProperty, propertyPath));
}
}
}
return(propertyRules);
}
