Scala Milliseconds类代码示例

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本文整理汇总了Scala中org.apache.spark.streaming.Milliseconds类的典型用法代码示例。如果您正苦于以下问题：Scala Milliseconds类的具体用法？Scala Milliseconds怎么用？Scala Milliseconds使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了Milliseconds类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Scala代码示例。

示例1: Combinators

//设置package包名称以及导入依赖的类
package com.stratio.ioft.streaming.transformations

import com.stratio.ioft.domain._
import com.stratio.ioft.domain.measures.{Acceleration, Attitude}
import com.stratio.ioft.domain.states.AttitudeHistory
import com.stratio.ioft.util.Math.Geometry._
import org.apache.spark.streaming.dstream.DStream
import com.stratio.ioft.domain.measures.VectorMeasure._
import com.stratio.ioft.streaming.transformations.Aggregators.attitudeHistoryStream

import org.apache.spark.streaming.Milliseconds

object Combinators {

  
  def desiredAndActualAttitudeStream(
                                      desiredAttitudeStream: DStream[(DroneIdType, (BigInt, Attitude))],
                                      attitudeStream: DStream[(DroneIdType, (BigInt, Attitude))],
                                      timeRange: Long
                                    ): DStream[(DroneIdType, (BigInt, Attitude, Attitude))] = {

    def windowed(stream: DStream[(DroneIdType, (BigInt, Attitude))]) = {
      val windowDuration = Milliseconds(timeRange)
      stream.window(windowDuration, windowDuration)
    }

    windowed(desiredAttitudeStream) join attitudeHistoryStream(windowed(attitudeStream)) flatMap {
      case (id, ( (ts, desired), actualAttitudeHistory)) =>
        val closestAttitudes = actualAttitudeHistory.attitudeAt(ts)
        closestAttitudes.headOption map { _ =>
          val (_, actualAttitude: Attitude) = closestAttitudes.minBy {
            case (actual_ts, _) => math.abs((actual_ts-ts).toLong)
          }
          id -> (ts, desired, actualAttitude)
        }
    }

  }

}

开发者ID:pfcoperez，项目名称:sparkstream_ioft，代码行数:41，代码来源:Combinators.scala

示例2: StreamingContextFactory

//设置package包名称以及导入依赖的类
package spark.jobserver.context

import com.typesafe.config.Config
import org.apache.spark.SparkConf
import org.apache.spark.streaming.{Milliseconds, StreamingContext}
import spark.jobserver.{api, ContextLike, SparkStreamingJob}

class StreamingContextFactory extends ScalaContextFactory {

  type C = StreamingContext with ContextLike

  def isValidJob(job: api.SparkJobBase): Boolean = job.isInstanceOf[SparkStreamingJob]

  def makeContext(sparkConf: SparkConf, config: Config,  contextName: String): C = {
    val interval = config.getInt("streaming.batch_interval")
    val stopGracefully = config.getBoolean("streaming.stopGracefully")
    val stopSparkContext = config.getBoolean("streaming.stopSparkContext")
    new StreamingContext(sparkConf, Milliseconds(interval)) with ContextLike {
      def stop() {
        //Gracefully stops the spark context
        stop(stopSparkContext, stopGracefully)
      }
    }
  }
}

开发者ID:TruenoDB，项目名称:trueno-compute-server，代码行数:26，代码来源:StreamingContextFactory.scala

注：本文中的org.apache.spark.streaming.Milliseconds类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。