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/*
* ============LICENSE_START=======================================================
* dcaegen2-collectors-veshv
* ================================================================================
* Copyright (C) 2019 NOKIA
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*/
package org.onap.dcae.collectors.veshv.config.impl
import arrow.core.Either
import arrow.core.Left
import arrow.core.Right
import arrow.data.Invalid
import arrow.data.Validated
import org.onap.dcae.collectors.veshv.config.api.model.ValidationException
import org.onap.dcae.collectors.veshv.utils.arrow.flatFold
import org.onap.dcae.collectors.veshv.utils.logging.Logger
/**
* @author Jakub Dudycz <jakub.dudycz@nokia.com>
* @since March 2019
*/
internal class ConfigurationValidator {
fun validate(partial: PartialConfiguration): Either<ValidationException, ValidatedPartialConfiguration> =
logger.info { "About to validate configuration: $partial" }.let {
val invalidFields = mutableSetOf(
validate(partial::streamPublishers)
)
.union(cbsConfigurationValidation(partial))
.union(serverConfigurationValidation(partial))
.union(securityValidation(partial))
.filter { it.isInvalid }
if (invalidFields.isNotEmpty()) {
return Left(ValidationException(validationMessageFrom(invalidFields)))
}
Right(partial.unsafeAsValidated())
}
fun validatedCbsConfiguration(partial: PartialConfiguration) = ValidatedCbsConfiguration(
firstRequestDelaySec = getOrThrowValidationException(partial::firstRequestDelaySec),
requestIntervalSec = getOrThrowValidationException(partial::requestIntervalSec)
)
private fun cbsConfigurationValidation(partial: PartialConfiguration) = setOf(
validate(partial::firstRequestDelaySec),
validate(partial::requestIntervalSec)
)
private fun serverConfigurationValidation(partial: PartialConfiguration) = setOf(
validate(partial::listenPort),
validate(partial::idleTimeoutSec)
)
private fun securityValidation(partial: PartialConfiguration) =
partial.sslDisable.flatFold({
validatedSecurityConfiguration(partial)
}, {
setOf(Validated.Valid("sslDisable flag is set to true"))
})
private fun validatedSecurityConfiguration(partial: PartialConfiguration) = setOf(
validate(partial::keyStoreFile),
validate(partial::keyStorePasswordFile),
validate(partial::trustStoreFile),
validate(partial::trustStorePasswordFile)
)
private fun <A> validate(property: ConfigProperty<A>) =
Validated.fromOption(property.get(), { "- missing property: ${property.name}\n" })
private fun <A> validationMessageFrom(invalidFields: List<Validated<String, A>>): String =
invalidFields.map { it as Invalid }
.map { it.e }
.fold("", String::plus)
.let { "Some required configuration properties are missing: \n$it" }
companion object {
private val logger = Logger(ConfigurationValidator::class)
}
}
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