Class ExecuteProduceConsume

  • All Implemented Interfaces:
    java.lang.Runnable, ExecutionStrategy

    public class ExecuteProduceConsume
    extends java.lang.Object
    implements ExecutionStrategy, java.lang.Runnable
    The Eclipse Jetty and Apache Felix Http Jetty packages are no longer supported.

    A strategy where the thread that produces will always run the resulting task.

    The strategy may then dispatch another thread to continue production.

    The strategy is also known by the nickname 'eat what you kill', which comes from the hunting ethic that says a person should not kill anything he or she does not plan on eating. In this case, the phrase is used to mean that a thread should not produce a task that it does not intend to run. By making producers run the task that they have just produced avoids execution delays and avoids parallel slow down by running the task in the same core, with good chances of having a hot CPU cache. It also avoids the creation of a queue of produced tasks that the system does not yet have capacity to consume, which can save memory and exert back pressure on producers.

    • Constructor Detail

      • ExecuteProduceConsume

        public ExecuteProduceConsume​(ExecutionStrategy.Producer producer,
                                     java.util.concurrent.Executor executor)
    • Method Detail

      • dispatch

        public void dispatch()
        Description copied from interface: ExecutionStrategy

        Initiates (or resumes) the task production and consumption.

        This method guarantees that the task is never run by the thread that called this method.

        TODO review the need for this (only used by HTTP2 push)
        Specified by:
        dispatch in interface ExecutionStrategy
        See Also:
      • run

        public void run()
        Specified by:
        run in interface java.lang.Runnable
      • isIdle

        public java.lang.Boolean isIdle()
      • toString

        public java.lang.String toString()
        toString in class java.lang.Object