@@ -0,0 +1,34 @@
		'use strict'
		module.exports = function OptionsValidator (params) {
		if (!validateParams(params)) {
		throw new Error('-- OptionsValidator: required options missing')
		}
		if (!(this instanceof OptionsValidator)) {
		return new OptionsValidator(params)
		}
		const requiredOptions = params.required
		this.getRequiredOptions = function () {
		return requiredOptions
		}
		this.validate = function (parameters) {
		const errors = []
		requiredOptions.forEach(function (requiredOptionName) {
		if (typeof parameters[requiredOptionName] === 'undefined') {
		errors.push(requiredOptionName)
		}
		})
		return errors
		}
		function validateParams (params) {
		if (!params) {
		return false
		}
		return typeof params.required !== 'undefined' && params.required instanceof Array
		}
		}