gerrit.onap Code Review - dcaegen2/collectors/hv-ves.git/blob

   1 /*
   2  * ============LICENSE_START=======================================================
   3  * dcaegen2-collectors-veshv
   4  * ================================================================================
   5  * Copyright (C) 2019 NOKIA
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20 package org.onap.dcae.collectors.veshv.config.impl
  21
  22 import arrow.core.Either
  23 import arrow.core.None
  24 import arrow.core.Option
  25 import arrow.core.Some
  26 import arrow.core.getOrElse
  27 import org.onap.dcae.collectors.veshv.config.api.model.CbsConfiguration
  28 import org.onap.dcae.collectors.veshv.config.api.model.CollectorConfiguration
  29 import org.onap.dcae.collectors.veshv.config.api.model.HvVesConfiguration
  30 import org.onap.dcae.collectors.veshv.config.api.model.ServerConfiguration
  31 import org.onap.dcae.collectors.veshv.ssl.boundary.SecurityConfiguration
  32 import org.onap.dcae.collectors.veshv.utils.arrow.OptionUtils.binding
  33 import org.onap.dcae.collectors.veshv.utils.arrow.mapBinding
  34 import org.onap.dcae.collectors.veshv.utils.logging.LogLevel
  35 import org.onap.dcae.collectors.veshv.utils.logging.Logger
  36 import java.net.InetSocketAddress
  37 import java.time.Duration
  38
  39 /**
  40  * @author Jakub Dudycz <jakub.dudycz@nokia.com>
  41  * @since March 2019
  42  */
  43 internal class ConfigurationValidator {
  44
  45     fun validate(partialConfig: PartialConfiguration)
  46             : Either<ValidationError, HvVesConfiguration> = binding {
  47         val logLevel = determineLogLevel(partialConfig.logLevel)
  48
  49         val serverConfiguration = partialConfig.server.bind()
  50                 .let { createServerConfiguration(it).bind() }
  51
  52         val cbsConfiguration = partialConfig.cbs.bind()
  53                 .let { createCbsConfiguration(it).bind() }
  54
  55         val securityConfiguration = partialConfig.security.bind()
  56                 .let { createSecurityConfiguration(it) }
  57
  58         val collectorConfiguration = partialConfig.collector.bind()
  59                 .let { createCollectorConfig(it).bind() }
  60
  61         HvVesConfiguration(
  62                 serverConfiguration,
  63                 cbsConfiguration,
  64                 securityConfiguration,
  65                 collectorConfiguration,
  66                 logLevel
  67         )
  68     }.toEither { ValidationError("Some required configuration options are missing") }
  69
  70     private fun determineLogLevel(logLevel: Option<LogLevel>) =
  71             logLevel.getOrElse {
  72                 logger.warn {
  73                     "Missing or invalid \"logLevel\" field. " +
  74                             "Using default log level ($DEFAULT_LOG_LEVEL)"
  75                 }
  76                 DEFAULT_LOG_LEVEL
  77             }
  78
  79     private fun createServerConfiguration(partial: PartialServerConfig) =
  80             partial.mapBinding {
  81                 ServerConfiguration(
  82                         it.listenPort.bind(),
  83                         Duration.ofSeconds(it.idleTimeoutSec.bind().toLong()),
  84                         it.maxPayloadSizeBytes.bind()
  85                 )
  86             }
  87
  88     private fun createCbsConfiguration(partial: PartialCbsConfig) =
  89             partial.mapBinding {
  90                 CbsConfiguration(
  91                         Duration.ofSeconds(it.firstRequestDelaySec.bind().toLong()),
  92                         Duration.ofSeconds(it.requestIntervalSec.bind().toLong())
  93                 )
  94             }
  95
  96     private fun createSecurityConfiguration(partial: PartialSecurityConfig) =
  97             partial.keys
  98                     .fold(
  99                             { SecurityConfiguration(None) },
 100                             { SecurityConfiguration(Some(it)) }
 101                     )
 102
 103     private fun createCollectorConfig(partial: PartialCollectorConfig) =
 104             partial.mapBinding {
 105                 CollectorConfiguration(
 106                         it.maxRequestSizeBytes.bind(),
 107                         toKafkaServersString(it.kafkaServers.bind()),
 108                         it.routing.bind(),
 109                         it.dummyMode.bind()
 110                 )
 111             }
 112
 113     private fun toKafkaServersString(kafkaServers: List<InetSocketAddress>): String =
 114             kafkaServers.joinToString(",") { "${it.hostName}:${it.port}" }
 115
 116     companion object {
 117         val DEFAULT_LOG_LEVEL = LogLevel.INFO
 118         private val logger = Logger(ConfigurationValidator::class)
 119     }
 120 }
 121
 122 data class ValidationError(val message: String, val cause: Option<Throwable> = None)