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package xyz.driver.core.rest
import xyz.driver.core.Name
trait ServiceDiscovery {
def discover[T <: Service](serviceName: Name[Service]): T
}
object ServiceDiscovery {
trait SavingUsedServiceDiscovery {
private val usedServices = new scala.collection.mutable.HashSet[String]()
def saveServiceUsage(serviceName: Name[Service]): Unit = usedServices.synchronized {
usedServices += serviceName.value
}
def getUsedServices: Set[String] = usedServices.synchronized { usedServices.toSet }
}
class NoServiceDiscovery extends ServiceDiscovery with SavingUsedServiceDiscovery {
def discover[T <: Service](serviceName: Name[Service]): T =
throw new IllegalArgumentException(s"Service with name $serviceName is unknown")
}
}
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