protected ConstraintValidationResult processSingleLengthConstraint(
DictionaryValidationResult result,
Object value,
LengthConstraint constraint,
AttributeValueReader attributeValueReader)
throws AttributeValidationException {
// Can't process any range constraints on null values
if (ValidationUtils.isNullOrEmpty(value)) {
return result.addSkipped(attributeValueReader, CONSTRAINT_NAME);
}
DataType dataType = constraint.getDataType();
Object typedValue = value;
if (dataType != null) {
typedValue = ValidationUtils.convertToDataType(value, dataType, dateTimeService);
}
// The only thing that can have a length constraint currently is a string.
if (typedValue instanceof String) {
return validateLength(result, (String) typedValue, constraint, attributeValueReader);
}
return result.addSkipped(attributeValueReader, CONSTRAINT_NAME);
}
/**
* validates the value provided using {@code RangeConstraint}
*
* @param result - a holder for any already run validation results
* @param value - the value to validate
* @param constraint - the range constraint to use
* @param attributeValueReader - provides access to the attribute being validated
* @return the passed in result, updated with the results of the processing
* @throws AttributeValidationException if validation fails
*/
protected ConstraintValidationResult processSingleRangeConstraint(
DictionaryValidationResult result,
Object value,
RangeConstraint constraint,
AttributeValueReader attributeValueReader)
throws AttributeValidationException {
// Can't process any range constraints on null values
if (ValidationUtils.isNullOrEmpty(value)
|| (constraint.getExclusiveMin() == null && constraint.getInclusiveMax() == null)) {
return result.addSkipped(attributeValueReader, CONSTRAINT_NAME);
}
// This is necessary because sometimes we'll be getting a string, for example, that represents a
// date.
DataType dataType = constraint.getDataType();
Object typedValue = value;
if (dataType != null) {
typedValue = ValidationUtils.convertToDataType(value, dataType, dateTimeService);
} else if (value instanceof String) {
// assume string is a number of type double
try {
Double d = Double.parseDouble((String) value);
typedValue = d;
} catch (NumberFormatException n) {
// do nothing, typedValue is never reset
}
}
// TODO: decide if there is any reason why the following would be insufficient - i.e. if
// something numeric could still be cast to String at this point
if (typedValue instanceof Date) {
return validateRange(result, (Date) typedValue, constraint, attributeValueReader);
} else if (typedValue instanceof Number) {
return validateRange(result, (Number) typedValue, constraint, attributeValueReader);
}
return result.addSkipped(attributeValueReader, CONSTRAINT_NAME);
}
