/
SizeValidator.scala
70 lines (57 loc) · 1.85 KB
/
SizeValidator.scala
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package com.twitter.finatra.json.internal.caseclass.validation.validators
import com.twitter.finatra.json.internal.caseclass.validation.validators.SizeValidator._
import com.twitter.finatra.validation.{
ErrorCode,
Size,
ValidationMessageResolver,
ValidationResult,
Validator
}
private[json] object SizeValidator {
def errorMessage(
resolver: ValidationMessageResolver,
value: Any,
minValue: Long,
maxValue: Long
): String = {
resolver.resolve(classOf[Size], toErrorValue(value), minValue, maxValue)
}
private def toErrorValue(value: Any) = {
value match {
case arrayValue: Array[_] =>
arrayValue.length
case traversableValue: Traversable[_] =>
traversableValue.size
case str: String =>
str.length
case _ =>
throw new IllegalArgumentException(s"Class [${value.getClass}] is not supported")
}
}
}
private[json] class SizeValidator(
validationMessageResolver: ValidationMessageResolver,
annotation: Size
) extends Validator[Size, Any](validationMessageResolver, annotation) {
private val minValue: Long = annotation.min()
private val maxValue: Long = annotation.max()
/* Public */
override def isValid(value: Any): ValidationResult = {
val size = value match {
case arrayValue: Array[_] => arrayValue.length
case traversableValue: Traversable[_] => traversableValue.size
case str: String => str.length
case _ =>
throw new IllegalArgumentException(s"Class [${value.getClass}] is not supported")
}
ValidationResult.validate(
isValid(size.toLong),
errorMessage(validationMessageResolver, value, minValue, maxValue),
ErrorCode.SizeOutOfRange(Integer.valueOf(size), minValue, maxValue)
)
}
/* Private */
private def isValid(value: Long): Boolean = {
minValue <= value && value <= maxValue
}
}