Package org.onlab.util

Class SharedScheduledExecutorService

  • All Implemented Interfaces:
    java.util.concurrent.Executor, java.util.concurrent.ExecutorService, java.util.concurrent.ScheduledExecutorService
    public class SharedScheduledExecutorService
extends java.lang.Object
implements java.util.concurrent.ScheduledExecutorService
    A new scheduled executor service that does not eat exception.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean awaitTermination​(long timeout, java.util.concurrent.TimeUnit unit)  
      void execute​(java.lang.Runnable command)  
      <T> java.util.List<java.util.concurrent.Future<T>> invokeAll​(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks)  
      <T> java.util.List<java.util.concurrent.Future<T>> invokeAll​(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks, long timeout, java.util.concurrent.TimeUnit unit)  
      <T> T invokeAny​(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks)  
      <T> T invokeAny​(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks, long timeout, java.util.concurrent.TimeUnit unit)  
      boolean isShutdown()  
      boolean isTerminated()  
      java.util.concurrent.ScheduledFuture<?> schedule​(java.lang.Runnable command, long delay, java.util.concurrent.TimeUnit unit)  
      java.util.concurrent.ScheduledFuture<?> schedule​(java.lang.Runnable command, long delay, java.util.concurrent.TimeUnit unit, boolean repeatFlag)
      Creates and executes a one-shot action that becomes enabled after the given delay.
      <V> java.util.concurrent.ScheduledFuture<V> schedule​(java.util.concurrent.Callable<V> callable, long delay, java.util.concurrent.TimeUnit unit)  
      java.util.concurrent.ScheduledFuture<?> scheduleAtFixedRate​(java.lang.Runnable command, long initialDelay, long period, java.util.concurrent.TimeUnit unit)  
      java.util.concurrent.ScheduledFuture<?> scheduleAtFixedRate​(java.lang.Runnable command, long initialDelay, long period, java.util.concurrent.TimeUnit unit, boolean repeatFlag)
      Creates and executes a periodic action that becomes enabled first after the given initial delay, and subsequently with the given period; that is executions will commence after initialDelay then initialDelay+period, then initialDelay + 2 * period, and so on.
      java.util.concurrent.ScheduledFuture<?> scheduleWithFixedDelay​(java.lang.Runnable command, long initialDelay, long delay, java.util.concurrent.TimeUnit unit)  
      java.util.concurrent.ScheduledFuture<?> scheduleWithFixedDelay​(java.lang.Runnable command, long initialDelay, long delay, java.util.concurrent.TimeUnit unit, boolean repeatFlag)
      Creates and executes a periodic action that becomes enabled first after the given initial delay, and subsequently with the given delay between the termination of one execution and the commencement of the next.
      void shutdown()  
      java.util.List<java.lang.Runnable> shutdownNow()  
      java.util.concurrent.Future<?> submit​(java.lang.Runnable task)  
      <T> java.util.concurrent.Future<T> submit​(java.lang.Runnable task, T result)  
      <T> java.util.concurrent.Future<T> submit​(java.util.concurrent.Callable<T> task)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • schedule

        public java.util.concurrent.ScheduledFuture<?> schedule​(java.lang.Runnable command,
                                                        long delay,
                                                        java.util.concurrent.TimeUnit unit,
                                                        boolean repeatFlag)
        Creates and executes a one-shot action that becomes enabled after the given delay.
        Parameters:
        command - the task to execute
        delay - the time from now to delay execution
        unit - the time unit of the delay parameter
        repeatFlag - the flag to denote whether to restart a failed task
        Returns:
        a ScheduledFuture representing pending completion of the task and whose get() method will return null upon completion

      • schedule

        public java.util.concurrent.ScheduledFuture<?> schedule​(java.lang.Runnable command,
                                                        long delay,
                                                        java.util.concurrent.TimeUnit unit)
        Specified by:
        schedule in interface java.util.concurrent.ScheduledExecutorService

      • schedule

        public <V> java.util.concurrent.ScheduledFuture<V> schedule​(java.util.concurrent.Callable<V> callable,
                                                            long delay,
                                                            java.util.concurrent.TimeUnit unit)
        Specified by:
        schedule in interface java.util.concurrent.ScheduledExecutorService

      • scheduleAtFixedRate

        public java.util.concurrent.ScheduledFuture<?> scheduleAtFixedRate​(java.lang.Runnable command,
                                                                   long initialDelay,
                                                                   long period,
                                                                   java.util.concurrent.TimeUnit unit,
                                                                   boolean repeatFlag)
        Creates and executes a periodic action that becomes enabled first after the given initial delay, and subsequently with the given period; that is executions will commence after initialDelay then initialDelay+period, then initialDelay + 2 * period, and so on. Depends on the repeat flag that the user set, the failed tasks can be either restarted or terminated. If the repeat flag is set to to true, ant execution of the task encounters an exception, subsequent executions are permitted, otherwise, subsequent executions are suppressed. If any execution of this task takes longer than its period, then subsequent executions may start late, but will not concurrently execute.
        Parameters:
        command - the task to execute
        initialDelay - the time to delay first execution
        period - the period between successive executions
        unit - the time unit of the initialDelay and period parameters
        repeatFlag - the flag to denote whether to restart a failed task
        Returns:
        a ScheduledFuture representing pending completion of the task, and whose get() method will throw an exception upon cancellation

      • scheduleAtFixedRate

        public java.util.concurrent.ScheduledFuture<?> scheduleAtFixedRate​(java.lang.Runnable command,
                                                                   long initialDelay,
                                                                   long period,
                                                                   java.util.concurrent.TimeUnit unit)
        Specified by:
        scheduleAtFixedRate in interface java.util.concurrent.ScheduledExecutorService

      • scheduleWithFixedDelay

        public java.util.concurrent.ScheduledFuture<?> scheduleWithFixedDelay​(java.lang.Runnable command,
                                                                      long initialDelay,
                                                                      long delay,
                                                                      java.util.concurrent.TimeUnit unit,
                                                                      boolean repeatFlag)
        Creates and executes a periodic action that becomes enabled first after the given initial delay, and subsequently with the given delay between the termination of one execution and the commencement of the next. Depends on the repeat flag that the user set, the failed tasks can be either restarted or terminated. If the repeat flag is set to to true, ant execution of the task encounters an exception, subsequent executions are permitted, otherwise, subsequent executions are suppressed.
        Parameters:
        command - the task to execute
        initialDelay - the time to delay first execution
        delay - the delay between the termination of one execution and the commencement of the next
        unit - the time unit of the initialDelay and delay parameters
        repeatFlag - the flag to denote whether to restart a failed task
        Returns:
        a ScheduledFuture representing pending completion of the task, and whose get() method will throw an exception upon cancellation

      • scheduleWithFixedDelay

        public java.util.concurrent.ScheduledFuture<?> scheduleWithFixedDelay​(java.lang.Runnable command,
                                                                      long initialDelay,
                                                                      long delay,
                                                                      java.util.concurrent.TimeUnit unit)
        Specified by:
        scheduleWithFixedDelay in interface java.util.concurrent.ScheduledExecutorService

      • shutdown

        public void shutdown()
        Specified by:
        shutdown in interface java.util.concurrent.ExecutorService

      • shutdownNow

        public java.util.List<java.lang.Runnable> shutdownNow()
        Specified by:
        shutdownNow in interface java.util.concurrent.ExecutorService

      • isShutdown

        public boolean isShutdown()
        Specified by:
        isShutdown in interface java.util.concurrent.ExecutorService

      • isTerminated

        public boolean isTerminated()
        Specified by:
        isTerminated in interface java.util.concurrent.ExecutorService

      • awaitTermination

        public boolean awaitTermination​(long timeout,
                                java.util.concurrent.TimeUnit unit)
                         throws java.lang.InterruptedException
        Specified by:
        awaitTermination in interface java.util.concurrent.ExecutorService
        Throws:
        java.lang.InterruptedException

      • submit

        public <T> java.util.concurrent.Future<T> submit​(java.util.concurrent.Callable<T> task)
        Specified by:
        submit in interface java.util.concurrent.ExecutorService

      • submit

        public <T> java.util.concurrent.Future<T> submit​(java.lang.Runnable task,
                                                 T result)
        Specified by:
        submit in interface java.util.concurrent.ExecutorService

      • submit

        public java.util.concurrent.Future<?> submit​(java.lang.Runnable task)
        Specified by:
        submit in interface java.util.concurrent.ExecutorService

      • invokeAll

        public <T> java.util.List<java.util.concurrent.Future<T>> invokeAll​(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks)
                                                             throws java.lang.InterruptedException
        Specified by:
        invokeAll in interface java.util.concurrent.ExecutorService
        Throws:
        java.lang.InterruptedException

      • invokeAll

        public <T> java.util.List<java.util.concurrent.Future<T>> invokeAll​(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks,
                                                                    long timeout,
                                                                    java.util.concurrent.TimeUnit unit)
                                                             throws java.lang.InterruptedException
        Specified by:
        invokeAll in interface java.util.concurrent.ExecutorService
        Throws:
        java.lang.InterruptedException

      • invokeAny

        public <T> T invokeAny​(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks)
                throws java.lang.InterruptedException,
                       java.util.concurrent.ExecutionException
        Specified by:
        invokeAny in interface java.util.concurrent.ExecutorService
        Throws:
        java.lang.InterruptedException
        java.util.concurrent.ExecutionException

      • invokeAny

        public <T> T invokeAny​(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks,
                       long timeout,
                       java.util.concurrent.TimeUnit unit)
                throws java.lang.InterruptedException,
                       java.util.concurrent.ExecutionException,
                       java.util.concurrent.TimeoutException
        Specified by:
        invokeAny in interface java.util.concurrent.ExecutorService
        Throws:
        java.lang.InterruptedException
        java.util.concurrent.ExecutionException
        java.util.concurrent.TimeoutException

      • execute

        public void execute​(java.lang.Runnable command)
        Specified by:
        execute in interface java.util.concurrent.Executor