Get rid of arrow-effects usage
[dcaegen2/collectors/hv-ves.git] / sources / hv-collector-dcae-app-simulator / src / main / kotlin / org / onap / dcae / collectors / veshv / simulators / dcaeapp / main.kt
1 /*
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
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.simulators.dcaeapp
21
22 import org.onap.dcae.collectors.veshv.commandline.handleWrongArgumentErrorCurried
23 import org.onap.dcae.collectors.veshv.simulators.dcaeapp.impl.ConsumerFactory
24 import org.onap.dcae.collectors.veshv.simulators.dcaeapp.impl.DcaeAppSimulator
25 import org.onap.dcae.collectors.veshv.simulators.dcaeapp.impl.MessageStreamValidation
26 import org.onap.dcae.collectors.veshv.simulators.dcaeapp.impl.adapters.DcaeAppApiServer
27 import org.onap.dcae.collectors.veshv.simulators.dcaeapp.impl.config.ArgDcaeAppSimConfiguration
28 import org.onap.dcae.collectors.veshv.simulators.dcaeapp.impl.config.DcaeAppSimConfiguration
29 import org.onap.dcae.collectors.veshv.utils.logging.Logger
30 import org.onap.dcae.collectors.veshv.utils.process.ExitCode
31 import org.onap.dcae.collectors.veshv.utils.process.ExitSuccess
32 import org.onap.dcae.collectors.veshv.ves.message.generator.factory.MessageGeneratorFactory
33
34 private const val PACKAGE_NAME = "org.onap.dcae.collectors.veshv.simulators.dcaeapp"
35 private val logger = Logger(PACKAGE_NAME)
36 const val PROGRAM_NAME = "java $PACKAGE_NAME.MainKt"
37
38 fun main(args: Array<String>): Unit =
39         ArgDcaeAppSimConfiguration().parse(args)
40                 .fold(handleWrongArgumentErrorCurried(PROGRAM_NAME), ::startApp)
41                 .let(ExitCode::doExit)
42
43
44 private fun startApp(config: DcaeAppSimConfiguration): ExitSuccess {
45     logger.info { "Starting DCAE-APP Simulator API server with configuration: $config" }
46     val consumerFactory = ConsumerFactory(config.kafkaBootstrapServers)
47     val generatorFactory = MessageGeneratorFactory(config.maxPayloadSizeBytes)
48     val messageStreamValidation = MessageStreamValidation(generatorFactory.createVesEventGenerator())
49     DcaeAppApiServer(DcaeAppSimulator(consumerFactory, messageStreamValidation))
50             .start(config.apiAddress, config.kafkaTopics)
51             .flatMap { it.await() }
52             .block()
53     return ExitSuccess
54 }