2 * ============LICENSE_START=======================================================
3 * dcaegen2-collectors-veshv
4 * ================================================================================
5 * Copyright (C) 2018-2019 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
11 * http://www.apache.org/licenses/LICENSE-2.0
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=========================================================
20 package org.onap.dcae.collectors.veshv.impl.adapters.kafka
22 import org.onap.dcae.collectors.veshv.boundary.SinkFactory
23 import org.onap.dcae.collectors.veshv.domain.VesMessage
24 import org.onap.dcae.collectors.veshv.impl.createKafkaSender
25 import org.onap.dcae.collectors.veshv.model.ClientContext
26 import org.onap.dcae.collectors.veshv.model.ServiceContext
27 import org.onap.dcae.collectors.veshv.utils.logging.Logger
28 import org.onap.dcaegen2.services.sdk.model.streams.SinkStream
29 import org.onap.ves.VesEventOuterClass.CommonEventHeader
30 import reactor.core.publisher.Flux
31 import reactor.core.publisher.Mono
32 import reactor.core.scheduler.Schedulers
33 import reactor.kafka.sender.KafkaSender
34 import java.util.Collections.synchronizedMap
37 * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
40 internal class KafkaSinkFactory : SinkFactory {
41 private val messageSinks = synchronizedMap(
42 mutableMapOf<SinkStream, KafkaSender<CommonEventHeader, VesMessage>>()
45 override fun invoke(stream: SinkStream, ctx: ClientContext) = lazy {
46 messageSinks.computeIfAbsent(stream, ::createKafkaSender).let {
47 KafkaPublisher(it, ctx)
51 override fun close(): Mono<Void> =
52 Flux.fromIterable(messageSinks.values)
53 .publishOn(Schedulers.elastic())
54 .doOnNext(KafkaSender<CommonEventHeader, VesMessage>::close)
57 logger.info(ServiceContext::mdc) { "Message sinks flushed and closed" }
61 private val logger = Logger(KafkaSinkFactory::class)