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/*
* ============LICENSE_START=======================================================
* dcaegen2-collectors-veshv
* ================================================================================
* Copyright (C) 2018 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.factory
import arrow.core.Option
import arrow.effects.IO
import org.onap.dcae.collectors.veshv.boundary.Collector
import org.onap.dcae.collectors.veshv.boundary.CollectorProvider
import org.onap.dcae.collectors.veshv.boundary.ConfigurationProvider
import org.onap.dcae.collectors.veshv.boundary.Metrics
import org.onap.dcae.collectors.veshv.boundary.SinkProvider
import org.onap.dcae.collectors.veshv.domain.WireFrameDecoder
import org.onap.dcae.collectors.veshv.healthcheck.api.HealthDescription
import org.onap.dcae.collectors.veshv.healthcheck.api.HealthState
import org.onap.dcae.collectors.veshv.impl.Router
import org.onap.dcae.collectors.veshv.impl.VesDecoder
import org.onap.dcae.collectors.veshv.impl.VesHvCollector
import org.onap.dcae.collectors.veshv.impl.wire.WireChunkDecoder
import org.onap.dcae.collectors.veshv.model.ClientContext
import org.onap.dcae.collectors.veshv.model.CollectorConfiguration
import org.onap.dcae.collectors.veshv.utils.arrow.getOption
import org.onap.dcae.collectors.veshv.utils.logging.Logger
import java.util.concurrent.atomic.AtomicReference
/**
* @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
* @since May 2018
*/
class CollectorFactory(val configuration: ConfigurationProvider,
private val sinkProvider: SinkProvider,
private val metrics: Metrics,
private val maximumPayloadSizeBytes: Int,
private val healthState: HealthState = HealthState.INSTANCE) {
fun createVesHvCollectorProvider(): CollectorProvider {
val config: AtomicReference<CollectorConfiguration> = AtomicReference()
configuration()
.doOnNext {
logger.info { "Using updated configuration for new connections" }
healthState.changeState(HealthDescription.HEALTHY)
}
.doOnError {
logger.error { "Failed to acquire configuration from consul" }
healthState.changeState(HealthDescription.DYNAMIC_CONFIGURATION_NOT_FOUND)
}
.subscribe(config::set)
return object : CollectorProvider {
override fun invoke(ctx: ClientContext): Option<Collector> =
config.getOption().map { createVesHvCollector(it, ctx) }
override fun close() = sinkProvider.close()
}
}
private fun createVesHvCollector(config: CollectorConfiguration, ctx: ClientContext): Collector =
VesHvCollector(
clientContext = ctx,
wireChunkDecoder = WireChunkDecoder(WireFrameDecoder(maximumPayloadSizeBytes), ctx),
protobufDecoder = VesDecoder(),
router = Router(config.routing, ctx),
sink = sinkProvider(ctx),
metrics = metrics)
companion object {
private val logger = Logger(CollectorFactory::class)
}
}
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