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