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package com.drivergrp.core
import akka.actor.ActorSystem
import akka.http.scaladsl.Http
import akka.http.scaladsl.server.Directives._
import akka.http.scaladsl.server.RouteResult._
import akka.stream.ActorMaterializer
import com.drivergrp.core.config.ConfigModule
import com.drivergrp.core.logging.LoggerModule
trait DriverApp {
this: ConfigModule with LoggerModule =>
def interface: String = "localhost"
def port: Int = 8080
def services: Seq[Service]
val servicesInstances = services
activateServices(servicesInstances)
scheduleServicesDeactivation(servicesInstances)
implicit val actorSystem = ActorSystem("spray-routing", config)
implicit val executionContext = actorSystem.dispatcher
implicit val materializer = ActorMaterializer()(actorSystem)
val serviceTypes = servicesInstances.flatMap(_.serviceTypes)
val swaggerService = new Swagger(actorSystem, serviceTypes, config)
val swaggerRoutes = swaggerService.routes ~ swaggerService.swaggerUI
Http()(actorSystem).bindAndHandle(
route2HandlerFlow(logRequestResult("log")(servicesInstances.map(_.route).foldLeft(swaggerRoutes) { _ ~ _ })),
interface, port)(materializer)
/**
* Initializes services
*/
protected def activateServices(servicesInstances: Seq[Service]) = {
servicesInstances.foreach { service =>
Console.print(s"Service ${service.name} starts ...")
try {
service.activate()
} catch {
case t: Throwable =>
log.fatal(s"Service ${service.name} failed to activate", t)
Console.print(" Failed! (check log)")
}
Console.println(" Done")
}
}
/**
* Schedules services to be deactivated on the app shutdown
*/
protected def scheduleServicesDeactivation(servicesInstances: Seq[Service]) = {
Runtime.getRuntime.addShutdownHook(new Thread() {
override def run(): Unit = {
servicesInstances.foreach { service =>
Console.print(s"Service ${service.name} shutting down ...")
try {
service.deactivate()
} catch {
case t: Throwable =>
log.fatal(s"Service ${service.name} failed to deactivate", t)
Console.print(" Failed! (check log)")
}
Console.println(" Done")
}
}
})
}
}
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