如何使用 reactivemongo 检查 MongoDB 是否启动和运行

Question

我正在尝试编写一个辅助函数，让我的仪表板检查 MongoDB 是否为运行。根据结果，它可以在可视化仪表板上警告管理员。我通读了反应式 mongo 文档 here，到目前为止我有以下功能，但不幸的是它不起作用。

import reactivemongo.api.MongoDriver

def isMongoUp(host: String): Boolean = {

  var connected = false
  val driver = new MongoDriver()
  val connection = driver.connection(List(host))
  val db = connection("myDB")
  db.map {
    case Failure(e) => connected = false
    case Success(result) => connected = true
  }

}

更新 1：

def isMongoUp(host: String): Boolean = {
  var connected = false
  val driver = new MongoDriver()
  val connection = driver.connection(List(host))
  val db = connection.database("myDB")
  db.map {
    case sth:DefaultDB => connected = true
    case _ => connected = false
  }
  connected

}

val result = isMongoUp("localhost")
result

Answer 1

我是这样完成的：

def isMongoUp(host: String): Boolean = {

    val driver = new MongoDriver()
    val connection = driver.connection(List(host))
    val db = connection.database("myDB")
    val connectedFuture: Future[Boolean] = db.map { list =>
      list match {
        case sth: DefaultDB => true
        case _ => false
      }
    }.recover { case error: Throwable => false}
    val timeout = scala.concurrent.duration.Duration(5, "seconds")

    val result = Await.result(connectedFuture, timeout)
    result

  }

如何使用 reactivemongo 检查 MongoDB 是否启动和运行

How to check if MongoDB is up and running using reactivemongo

scala

mongodb

reactivemongo

如何使用 reactivemongo 检查 MongoDB 是否启动和 运行

How to check if MongoDB is up and running using reactivemongo

scala

mongodb

reactivemongo

如何使用 reactivemongo 检查 MongoDB 是否启动和运行