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
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.adapters.VesHvClient
30 import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageGenerator
31 import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageParametersParser
32 import org.onap.dcae.collectors.veshv.ves.message.generator.api.ParsingError
33 import java.io.InputStream
34 import javax.json.Json
37 * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
41 private val vesClient: VesHvClient,
42 private val messageGenerator: MessageGenerator,
43 private val messageParametersParser: MessageParametersParser = MessageParametersParser.INSTANCE) {
45 fun startSimulation(messageParameters: InputStream): Either<ParsingError, IO<Unit>> =
46 Either.monad<ParsingError>().binding {
47 val json = parseJsonArray(messageParameters).bind()
48 val parsed = messageParametersParser.parse(json).bind()
49 val generatedMessages = messageGenerator.createMessageFlux(parsed)
50 vesClient.sendIo(generatedMessages)
53 private fun parseJsonArray(jsonStream: InputStream) =
55 Json.createReader(jsonStream).readArray()
56 }.toEither().mapLeft { ParsingError("failed to parse JSON", Some(it)) }