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.Route
  31 import org.onap.dcae.collectors.veshv.config.api.model.Routing
  32 import org.onap.dcae.collectors.veshv.config.api.model.ServerConfiguration
  33 import org.onap.dcae.collectors.veshv.ssl.boundary.SecurityConfiguration
  34 import org.onap.dcae.collectors.veshv.utils.arrow.OptionUtils.binding
  35 import org.onap.dcae.collectors.veshv.utils.arrow.mapBinding
  36 import org.onap.dcae.collectors.veshv.utils.logging.LogLevel
  37 import org.onap.dcae.collectors.veshv.utils.logging.Logger
  38 import java.net.InetSocketAddress
  39 import java.time.Duration
  40
  41 /**
  42  * @author Jakub Dudycz <jakub.dudycz@nokia.com>
  43  * @since March 2019
  44  */
  45 internal class ConfigurationValidator {
  46
  47     fun validate(partialConfig: PartialConfiguration)
  48             : Either<ValidationError, HvVesConfiguration> = binding {
  49         val logLevel = determineLogLevel(partialConfig.logLevel)
  50
  51         val serverConfiguration = partialConfig.server.bind()
  52                 .let { createServerConfiguration(it).bind() }
  53
  54         val cbsConfiguration = partialConfig.cbs.bind()
  55                 .let { createCbsConfiguration(it).bind() }
  56
  57         val securityConfiguration = SecurityConfiguration(partialConfig.security.bind().keys)
  58
  59 // TOD0: retrieve when ConfigurationMerger is implemented
  60 //        val collectorConfiguration = partialConfig.collector.bind()
  61 //                .let { createCollectorConfig(it).bind() }
  62
  63         HvVesConfiguration(
  64                 serverConfiguration,
  65                 cbsConfiguration,
  66                 securityConfiguration,
  67 // TOD0: swap when ConfigurationMerger is implemented
  68 //                    collectorConfiguration
  69                 CollectorConfiguration(-1,
  70                         "I do not exist. I'm not even a URL :o",
  71                         Routing(emptyList())),
  72 // end TOD0
  73                 logLevel
  74         )
  75     }.toEither { ValidationError("Some required configuration options are missing") }
  76
  77     private fun determineLogLevel(logLevel: Option<LogLevel>) =
  78             logLevel.getOrElse {
  79                 logger.warn {
  80                     "Missing or invalid \"logLevel\" field. " +
  81                             "Using default log level ($DEFAULT_LOG_LEVEL)"
  82                 }
  83                 DEFAULT_LOG_LEVEL
  84             }
  85
  86     private fun createServerConfiguration(partial: PartialServerConfig) =
  87             partial.mapBinding {
  88                 ServerConfiguration(
  89                         it.listenPort.bind(),
  90                         Duration.ofSeconds(it.idleTimeoutSec.bind().toLong()),
  91                         it.maxPayloadSizeBytes.bind()
  92                 )
  93             }
  94
  95     private fun createCbsConfiguration(partial: PartialCbsConfig) =
  96             partial.mapBinding {
  97                 CbsConfiguration(
  98                         Duration.ofSeconds(it.firstRequestDelaySec.bind().toLong()),
  99                         Duration.ofSeconds(it.requestIntervalSec.bind().toLong())
 100                 )
 101             }
 102
 103 // TOD0: retrieve when ConfigurationMerger is implemented
 104 //    private fun createCollectorConfig(partial: PartialCollectorConfig) =
 105 //            partial.mapBinding {
 106 //                CollectorConfiguration(
 107 //                        it.maxRequestSizeBytes.bind(),
 108 //                        toKafkaServersString(it.kafkaServers.bind()),
 109 //                        it.routing.bind()
 110 //                )
 111 //            }
 112
 113     private fun toKafkaServersString(kafkaServers: List<InetSocketAddress>): String =
 114             kafkaServers.joinToString(",") { "${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)