Package alluxio.scheduler.job

Class Task<V>

  • Type Parameters:
    V - the response type of the task
    All Implemented Interfaces:
    java.lang.Comparable<Task>
    public abstract class Task<V>
extends java.lang.Object
implements java.lang.Comparable<Task>
    A task that can be executed on a worker. Belongs to a Job.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      static class  Task.TaskStat
      State of a task.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected Job mMyJob  

    • Constructor Summary

      Constructors 
      Constructor Description
      Task()
      Constructor.

    • Field Detail

      • mMyJob

        protected Job mMyJob

    • Constructor Detail

      • Task

        public Task()
        Constructor.

    • Method Detail

      • run

        protected abstract com.google.common.util.concurrent.ListenableFuture<V> run​(alluxio.client.block.stream.BlockWorkerClient client)
        run the task.

      • getMyRunningWorker

        public alluxio.wire.WorkerInfo getMyRunningWorker()
        Returns:
        my running worker

      • getResponseFuture

        public com.google.common.util.concurrent.ListenableFuture<V> getResponseFuture()
        Returns:
        the response future

      • execute

        public void execute​(alluxio.client.block.stream.BlockWorkerClient client,
                    alluxio.wire.WorkerInfo workerInfo)
        run the task and set the response future.
        Parameters:
        client - worker client
        workerInfo - the worker information

      • withJob

        public Task withJob​(Job job)
        Parameters:
        job - the job
        Returns:
        the task

      • getTaskStat

        public Task.TaskStat getTaskStat()
        Returns:
        task stat

      • getPriority

        public int getPriority()
        Returns:
        priority

      • equals

        public boolean equals​(java.lang.Object obj)
        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object

      • compareTo

        public int compareTo​(Task o)
        Specified by:
        compareTo in interface java.lang.Comparable<V>

      • onComplete

        public void onComplete​(java.util.concurrent.Executor executor)
        Parameters:
        executor - the executor