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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.api
import arrow.core.getOrElse
import org.onap.dcae.collectors.veshv.config.api.model.HvVesConfiguration
import org.onap.dcae.collectors.veshv.config.api.model.MissingArgumentException
import org.onap.dcae.collectors.veshv.config.api.model.ValidationException
import org.onap.dcae.collectors.veshv.config.impl.CbsConfigurationProvider
import org.onap.dcae.collectors.veshv.config.impl.ConfigurationMerger
import org.onap.dcae.collectors.veshv.config.impl.ConfigurationValidator
import org.onap.dcae.collectors.veshv.config.impl.HvVesCommandLineParser
import org.onap.dcae.collectors.veshv.config.impl.JsonConfigurationParser
import org.onap.dcae.collectors.veshv.config.impl.PartialConfiguration
import org.onap.dcae.collectors.veshv.utils.arrow.throwOnLeft
import org.onap.dcae.collectors.veshv.utils.logging.Logger
import org.onap.dcae.collectors.veshv.utils.logging.MappedDiagnosticContext
import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.CbsClientFactory
import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.EnvProperties
import reactor.core.publisher.Flux
import reactor.core.publisher.Mono
class ConfigurationModule {
private val cmd = HvVesCommandLineParser()
private val configParser = JsonConfigurationParser()
private val configValidator = ConfigurationValidator()
private val merger = ConfigurationMerger()
fun healthCheckPort(args: Array<String>): Int = cmd.getHealthcheckPort(args)
fun hvVesConfigurationUpdates(args: Array<String>,
configStateListener: ConfigurationStateListener,
mdc: MappedDiagnosticContext): Flux<HvVesConfiguration> =
Mono.just(cmd.getConfigurationFile(args))
.throwOnLeft(::MissingArgumentException)
.doOnNext { logger.info { "Using base configuration file: ${it.absolutePath}" } }
.map { it.reader().use(configParser::parse) }
.doOnNext { logger.info { "Successfully parsed json file to configuration: $it" } }
.cache()
.flatMapMany { basePartialConfig ->
cbsConfigurationProvider(basePartialConfig, configStateListener, mdc)
.invoke()
.map { merger.merge(basePartialConfig, it) }
.map(configValidator::validate)
.throwOnLeft()
}
private fun cbsConfigurationProvider(basePartialConfig: PartialConfiguration,
configStateListener: ConfigurationStateListener,
mdc: MappedDiagnosticContext): CbsConfigurationProvider =
CbsConfigurationProvider(
CbsClientFactory.createCbsClient(EnvProperties.fromEnvironment()),
cbsConfigurationFrom(basePartialConfig),
configParser,
configStateListener,
mdc)
private fun cbsConfigurationFrom(basePartialConfig: PartialConfiguration) = configValidator
.validatedCbsConfiguration(basePartialConfig)
.getOrElse { throw ValidationException("Invalid CBS section defined in configuration file") }
companion object {
private val logger = Logger(ConfigurationModule::class)
}
}
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