sources/hv-collector-core/src/main/kotlin/org/onap/dcae/collectors/veshv/factory/CollectorFactory.kt

   1 /*
   2  * ============LICENSE_START=======================================================
   3  * dcaegen2-collectors-veshv
   4  * ================================================================================
   5  * Copyright (C) 2018 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.factory
  21
  22 import org.onap.dcae.collectors.veshv.boundary.Collector
  23 import org.onap.dcae.collectors.veshv.boundary.CollectorProvider
  24 import org.onap.dcae.collectors.veshv.boundary.ConfigurationProvider
  25 import org.onap.dcae.collectors.veshv.boundary.Metrics
  26 import org.onap.dcae.collectors.veshv.boundary.SinkProvider
  27 import org.onap.dcae.collectors.veshv.domain.WireFrameDecoder
  28 import org.onap.dcae.collectors.veshv.healthcheck.api.HealthDescription
  29 import org.onap.dcae.collectors.veshv.healthcheck.api.HealthState
  30 import org.onap.dcae.collectors.veshv.impl.Router
  31 import org.onap.dcae.collectors.veshv.impl.VesDecoder
  32 import org.onap.dcae.collectors.veshv.impl.VesHvCollector
  33 import org.onap.dcae.collectors.veshv.impl.wire.WireChunkDecoder
  34 import org.onap.dcae.collectors.veshv.model.ClientContext
  35 import org.onap.dcae.collectors.veshv.model.CollectorConfiguration
  36 import org.onap.dcae.collectors.veshv.utils.arrow.getOption
  37 import org.onap.dcae.collectors.veshv.utils.logging.Logger
  38 import java.util.concurrent.atomic.AtomicReference
  39
  40 /**
  41  * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
  42  * @since May 2018
  43  */
  44 class CollectorFactory(val configuration: ConfigurationProvider,
  45                        private val sinkProvider: SinkProvider,
  46                        private val metrics: Metrics,
  47                        private val maximumPayloadSizeBytes: Int,
  48                        private val healthState: HealthState = HealthState.INSTANCE) {
  49
  50     fun createVesHvCollectorProvider(): CollectorProvider {
  51         val config: AtomicReference<CollectorConfiguration> = AtomicReference()
  52         configuration()
  53                 .doOnNext {
  54                     logger.info { "Using updated configuration for new connections" }
  55                     healthState.changeState(HealthDescription.HEALTHY)
  56                 }
  57                 .doOnError {
  58                     logger.error { "Failed to acquire configuration from consul" }
  59                     healthState.changeState(HealthDescription.CONSUL_CONFIGURATION_NOT_FOUND)
  60                 }
  61                 .subscribe(config::set)
  62         return { ctx: ClientContext ->
  63             config.getOption().map { config -> createVesHvCollector(config, ctx) }
  64         }
  65     }
  66
  67     private fun createVesHvCollector(config: CollectorConfiguration, ctx: ClientContext): Collector = VesHvCollector(
  68             clientContext = ctx,
  69             wireChunkDecoder = WireChunkDecoder(WireFrameDecoder(maximumPayloadSizeBytes), ctx),
  70             protobufDecoder = VesDecoder(),
  71             router = Router(config.routing, ctx),
  72             sink = sinkProvider(config, ctx),
  73             metrics = metrics)
  74
  75     companion object {
  76         private val logger = Logger(CollectorFactory::class)
  77     }
  78 }
  79