EventExecutorChooserFactory Type — netty Architecture

Source Code

common/src/main/java/io/netty/util/concurrent/EventExecutorChooserFactory.java lines 25–62

public interface EventExecutorChooserFactory {

    /**
     * Returns a new {@link EventExecutorChooser}.
     */
    EventExecutorChooser newChooser(EventExecutor[] executors);

    /**
     * Chooses the next {@link EventExecutor} to use.
     */
    interface EventExecutorChooser {

        /**
         * Returns the new {@link EventExecutor} to use.
         */
        EventExecutor next();
    }

    /**
     * An {@link EventExecutorChooser} that exposes metrics for observation.
     */
    interface ObservableEventExecutorChooser extends EventExecutorChooser {

        /**
         * Returns the current number of active {@link EventExecutor}s.
         * @return the number of active executors.
         */
        int activeExecutorCount();

        /**
         * Returns a list containing the last calculated utilization for each
         * {@link EventExecutor} in the group.
         *
         * @return an umodifiable view of the executor utilizations.
         */
        List<AutoScalingUtilizationMetric> executorUtilizations();
    }
}