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.simulators.xnf.impl
22 import arrow.core.Either
23 import arrow.core.Some
26 import arrow.effects.IO
27 import arrow.instances.either.monad.monad
28 import arrow.typeclasses.binding
29 import org.onap.dcae.collectors.veshv.simulators.xnf.impl.factory.ClientFactory
30 import org.onap.dcae.collectors.veshv.utils.arrow.asIo
31 import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageParameters
32 import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageParametersParser
33 import org.onap.dcae.collectors.veshv.ves.message.generator.api.ParsingError
34 import org.onap.dcae.collectors.veshv.ves.message.generator.api.VesEventParameters
35 import org.onap.dcae.collectors.veshv.ves.message.generator.api.WireFrameParameters
36 import org.onap.dcae.collectors.veshv.ves.message.generator.factory.MessageGeneratorFactory
37 import reactor.core.publisher.Mono
38 import reactor.core.publisher.toFlux
39 import java.io.InputStream
40 import javax.json.Json
41 import javax.json.JsonArray
44 * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
48 private val clientFactory: ClientFactory,
49 private val generatorFactory: MessageGeneratorFactory,
50 private val messageParametersParser: MessageParametersParser = MessageParametersParser.INSTANCE) {
52 private val wireFrameGenerator by lazy { generatorFactory.createWireFrameGenerator() }
53 private val vesEventGenerator by lazy { generatorFactory.createVesEventGenerator() }
55 fun startSimulation(messageParameters: InputStream): Either<ParsingError, IO<Unit>> =
56 Either.monad<ParsingError>().binding {
57 val json = parseJsonArray(messageParameters).bind()
58 val parameters = messageParametersParser.parse(json).bind()
59 simulationFrom(parameters)
62 private fun parseJsonArray(jsonStream: InputStream): Either<ParsingError, JsonArray> =
63 Try { Json.createReader(jsonStream).readArray() }
65 .mapLeft { ParsingError("Failed to parse JSON", Some(it)) }
67 private fun simulationFrom(parameters: List<MessageParameters>): IO<Unit> = parameters
70 .then(Mono.just(Unit))
73 private fun simulate(parameters: MessageParameters): Mono<Unit> =
75 is VesEventParameters -> {
76 val messages = vesEventGenerator.createMessageFlux(parameters)
77 val client = clientFactory.create()
78 client.sendVesEvents(messages)
80 is WireFrameParameters -> {
81 val messages = wireFrameGenerator.createMessageFlux(parameters)
82 val client = clientFactory.create(parameters.wireFrameVersion)
83 client.sendRawPayload(messages)