commonMain.com.harmony.kotlin.data.validator.Validator.kt Maven / Gradle / Ivy

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package com.harmony.kotlin.data.validator

import com.harmony.kotlin.data.datasource.GetDataSource
import com.harmony.kotlin.data.datasource.GetDataSourceValidator
import com.harmony.kotlin.data.validator.vastra.strategies.ValidationStrategyEntity
import kotlin.jvm.JvmName

interface Validator {

  fun isValid(value: T): Boolean
}

/** Validator for list **/
class ListValidator(private val singleValueValidator: Validator) : Validator> {

  /** Validates all object of the list, if one of them is not valid the whole list is not valid **/
  override fun isValid(value: List): Boolean {
    if (value.isEmpty()) return false

    value.forEach { if (!singleValueValidator.isValid(it)) return false }

    return true
  }
}

/**
 * Create a validator for lists
 */
fun  Validator.toListValidator(): Validator> {
  val singleValueMapper = this
  return ListValidator(singleValueMapper)
}

/**
 * Helper function to create a GetDataSourceValidator from a Validator
 */
fun  Validator.toGetDataSourceValidator(getDataSource: GetDataSource): GetDataSourceValidator {
  return GetDataSourceValidator(getDataSource, this)
}

/**
 * Helper function to create a GetDataSourceValidator from a Validator
 */
@JvmName("toGetDataSourceListValidator")
fun  Validator>.toGetDataSourceValidator(getDataSource: GetDataSource>): GetDataSourceValidator> {
  return GetDataSourceValidator(getDataSource, this)
}