sources/hv-collector-xnf-simulator/src/main/kotlin/org/onap/dcae/collectors/veshv/simulators/xnf/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.xnf
  21
  22 import arrow.effects.IO
  23 import arrow.effects.fix
  24 import arrow.effects.instances.io.monad.monad
  25 import arrow.typeclasses.binding
  26 import io.vavr.collection.HashSet
  27 import org.onap.dcae.collectors.veshv.commandline.handleWrongArgumentErrorCurried
  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.simulators.xnf.impl.OngoingSimulations
  31 import org.onap.dcae.collectors.veshv.simulators.xnf.impl.XnfSimulator
  32 import org.onap.dcae.collectors.veshv.simulators.xnf.impl.adapters.XnfApiServer
  33 import org.onap.dcae.collectors.veshv.simulators.xnf.impl.adapters.XnfHealthCheckServer
  34 import org.onap.dcae.collectors.veshv.simulators.xnf.impl.config.ArgXnfSimulatorConfiguration
  35 import org.onap.dcae.collectors.veshv.simulators.xnf.impl.config.ClientConfiguration
  36 import org.onap.dcae.collectors.veshv.simulators.xnf.impl.config.SimulatorConfiguration
  37 import org.onap.dcae.collectors.veshv.simulators.xnf.impl.factory.ClientFactory
  38 import org.onap.dcae.collectors.veshv.utils.arrow.ExitFailure
  39 import org.onap.dcae.collectors.veshv.utils.arrow.unsafeRunEitherSync
  40 import org.onap.dcae.collectors.veshv.utils.logging.Logger
  41 import org.onap.dcae.collectors.veshv.ves.message.generator.factory.MessageGeneratorFactory
  42
  43 private const val PACKAGE_NAME = "org.onap.dcae.collectors.veshv.simulators.xnf"
  44 private val logger = Logger(PACKAGE_NAME)
  45 const val PROGRAM_NAME = "java $PACKAGE_NAME.MainKt"
  46
  47 /**
  48  * @author Jakub Dudycz <jakub.dudycz@nokia.com>
  49  * @since June 2018
  50  */
  51 fun main(args: Array<String>) = ArgXnfSimulatorConfiguration().parse(args)
  52         .mapLeft(handleWrongArgumentErrorCurried(PROGRAM_NAME))
  53         .map(::startServers)
  54         .unsafeRunEitherSync(
  55                 { ex ->
  56                     logger.withError { log("Failed to start a server", ex) }
  57                     ExitFailure(1)
  58                 },
  59                 {
  60                     logger.info { "Stopping xNF Simulator API server" }
  61                 }
  62         )
  63
  64 private fun startServers(config: SimulatorConfiguration): IO<Unit> =
  65         IO.monad().binding {
  66             logger.info { "Using configuration: $config" }
  67
  68             XnfHealthCheckServer().startServer(config).bind()
  69
  70             val clientConfig = ClientConfiguration(HashSet.of(config.hvVesAddress), config.securityProvider)
  71             val xnfSimulator = XnfSimulator(
  72                     ClientFactory(clientConfig),
  73                     MessageGeneratorFactory(config.maxPayloadSizeBytes)
  74             )
  75             val xnfApiServerHandler = XnfApiServer(xnfSimulator, OngoingSimulations())
  76                     .start(config.listenAddress).bind()
  77
  78             logger.info { "Started xNF Simulator API server" }
  79             HealthState.INSTANCE.changeState(HealthDescription.IDLE)
  80
  81             xnfApiServerHandler.await().bind()
  82         }.fix()
  83