/// <summary>
/// Validates that this object contains a member with the given name, and the value of the member, read as
/// <see cref="System.String"/>, matches the given regular expression pattern.
/// </summary>
/// <param name="value">The <see cref="System.Json.JsonObject"/> to which the validation will be applied.</param>
/// <param name="key">The key of the member to search.</param>
/// <param name="pattern">The regular expression pattern.</param>
/// <returns>This object, so that other validation operations can be chained.</returns>
/// <exception cref="System.ComponentModel.DataAnnotations.ValidationException">If the validation failed.</exception>
public static JsonObject ValidateRegularExpression(this JsonObject value, string key, string pattern)
{
if (value == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
}
value.ValidatePresence(key);
string jsonValue = value[key].ReadAs <string>();
ValidationContext context = new ValidationContext(value, null, null);
context.MemberName = key;
Validator.ValidateValue(jsonValue, context, new List <ValidationAttribute> {
new RegularExpressionAttribute(pattern)
});
return(value);
}
/// <summary>
/// Validates this object with a custom method.
/// </summary>
/// <param name="value">The <see cref="System.Json.JsonObject"/> to which the validation will be applied.</param>
/// <param name="key">The name of the key to be passed to the validation context.</param>
/// <param name="type">Tye type where the custom method is located.</param>
/// <param name="method">The name of the method used to perform the validation.</param>
/// <returns>This object, so that other validation operations can be chained.</returns>
/// <exception cref="System.ComponentModel.DataAnnotations.ValidationException">If the validation failed.</exception>
public static JsonObject ValidateCustomValidator(this JsonObject value, string key, Type type, string method)
{
if (value == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
}
value.ValidatePresence(key);
ValidationContext context = new ValidationContext(value, null, null);
context.MemberName = key;
List <ValidationAttribute> attrib = new List <ValidationAttribute> {
new CustomValidationAttribute(type, method)
};
Validator.ValidateValue(value[key], context, attrib);
return(value);
}
public static JsonObject ValidateTypeOf <T>(this JsonObject value, string key)
{
if (value == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
}
value.ValidatePresence(key);
T tempOfT;
if (!value[key].TryReadAs <T>(out tempOfT))
{
ValidationResult failedResult = new ValidationResult(SG.GetString(SR.NamedValueNotOfType, key, typeof(T).FullName), new List <string> {
key
});
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ValidationException(failedResult, null, null));
}
return(value);
}
/// <summary>
/// Validates that this object contains a member with the given name, and the value of the member, read as
/// <see cref="System.String"/>, has a length within the given range.
/// </summary>
/// <param name="value">The <see cref="System.Json.JsonObject"/> to which the validation will be applied.</param>
/// <param name="key">The key of the member to search.</param>
/// <param name="minimumLength">The minimum length allowed for the member value.</param>
/// <param name="maximumLength">The maximum length allowed for the member value.</param>
/// <returns>This object, so that other validation operations can be chained.</returns>
/// <exception cref="System.ComponentModel.DataAnnotations.ValidationException">If the validation failed.</exception>
public static JsonObject ValidateStringLength(this JsonObject value, string key, int minimumLength, int maximumLength)
{
if (value == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
}
value.ValidatePresence(key);
string jsonValue = value[key].ReadAs <string>();
ValidationContext context = new ValidationContext(value, null, null);
context.MemberName = key;
Validator.ValidateValue(jsonValue, context, new List <ValidationAttribute> {
new StringLengthAttribute(maximumLength)
{
MinimumLength = minimumLength
}
});
return(value);
}
/// <summary>
/// Validates that this object contains a member with the given name, and the value of the member can be
/// converted into the given enum type.
/// </summary>
/// <param name="value">The <see cref="System.Json.JsonObject"/> to which the validation will be applied.</param>
/// <param name="key">The key of the member to search.</param>
/// <param name="enumType">The enum type to validate the value.</param>
/// <returns>This object, so that other validation operations can be chained.</returns>
/// <exception cref="System.ComponentModel.DataAnnotations.ValidationException">If the validation failed.</exception>
public static JsonObject ValidateEnum(this JsonObject value, string key, Type enumType)
{
if (value == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
}
if (enumType == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("enumType");
}
value.ValidatePresence(key);
string jsonValue = value[key].ReadAs <string>();
ValidationContext context = new ValidationContext(value, null, null);
context.MemberName = key;
Validator.ValidateValue(jsonValue, context, new List <ValidationAttribute> {
new EnumDataTypeAttribute(enumType)
});
return(value);
}
public void ValidationAPITest()
{
JsonObject jo = new JsonObject();
jo.Add("date", new DateTime(2000, 1, 1, 0, 0, 0));
jo.Add("int", 1);
jo.Add("double", 1.1);
jo.Add("string", "12CharString");
jo.Add("enum", "Number");
jo.ValidatePresence("date")
.ValidateEnum("enum", typeof(JsonType))
.ValidateRange("double", 0.1, 1.2)
.ValidateRange("int", 0, 2)
.ValidateRange<DateTime>("date", DateTime.MinValue, DateTime.MaxValue)
.ValidateRegularExpression("int", "^.+$")
.ValidateStringLength("string", 15)
.ValidateStringLength("string", 0, 15)
.ValidateTypeOf<double>("int")
.ValidateCustomValidator("string", typeof(MyCustomValidationClass), "IsStringContainsCharSimple")
.ValidateCustomValidator("string", typeof(MyCustomValidationClass), "IsStringContainsCharComplex");
ExceptionTestHelper.ExpectException<ValidationException>(delegate { jo.ValidatePresence("invalidkey"); });
ExceptionTestHelper.ExpectException<ValidationException>(delegate { jo.ValidateEnum("date", typeof(JsonType)); });
ExceptionTestHelper.ExpectException<ValidationException>(delegate { jo.ValidateRange("double", 2.2, 3.2); });
ExceptionTestHelper.ExpectException<ValidationException>(delegate { jo.ValidateRange("int", 2, 3); });
ExceptionTestHelper.ExpectException<ValidationException>(delegate { jo.ValidateRange<DateTime>("date", DateTime.MaxValue, DateTime.MaxValue); });
ExceptionTestHelper.ExpectException<ValidationException>(delegate { jo.ValidateRegularExpression("string", "doesnotmatch"); });
ExceptionTestHelper.ExpectException<ValidationException>(delegate { jo.ValidateStringLength("string", 10); });
ExceptionTestHelper.ExpectException<ValidationException>(delegate { jo.ValidateStringLength("string", 15, 25); });
ExceptionTestHelper.ExpectException<ValidationException>(delegate { jo.ValidateTypeOf<double>("date"); });
ExceptionTestHelper.ExpectException<ValidationException>(delegate { jo.ValidateCustomValidator("enum", typeof(MyCustomValidationClass), "IsStringContainsCharSimple"); });
ExceptionTestHelper.ExpectException<ValidationException>(delegate { jo.ValidateCustomValidator("enum", typeof(MyCustomValidationClass), "IsStringContainsCharComplex"); });
}
