Examples of java.util.concurrent.FutureTask$Sync

java.util.concurrent.FutureTask
Synchronization control for FutureTask. Note that this must be a non-static inner class in order to invoke the protected done method. For clarity, all inner class support methods are same as outer, prefixed with "inner". Uses AQS sync state to represent run status

   * @param runnable
   *            The Runnable that has to be called on JFX thread.
   */
  static public void runAndWait(final Runnable runnable) {
    try {
      FutureTask future = new FutureTask(runnable, null);
      Platform.runLater(future);
      future.get();
    }
    catch (InterruptedException | ExecutionException e) {
      throw new RuntimeException(e);
    }
  }

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            _oneInstance),


            _timeout);


         _futureResult = new FutureTask(_callable);
         return _futureResult;
         
      }
      catch (Exception e)
      {

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   }


   public Object call() throws Exception
   {


      FutureTask result = new FutureTask(function);




      Thread thread = Executors.defaultThreadFactory().newThread(result);


      thread.start();


      try
      {


         startingTime = System.currentTimeMillis();


         Object obj = result.get(millis, TimeUnit.MILLISECONDS);


         endingTime = System.currentTimeMillis();


         return obj;

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     */


    @SuppressWarnings("unchecked")
    public CallbackFuture(InvocationContext ic, AsyncHandler handler) {
        cft = new CallbackFutureTask(ic.getAsyncResponseListener(), handler);
        task = new FutureTask(cft);
        executor = ic.getExecutor();
        
        /*
         * TODO review.  We need to save the invocation context so we can set it on the
         * response (or fault) context so the FutureCallback has access to the handler list.

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        synchronized (tasks)
        {
            Iterator<FutureTask> taskIterator = tasks.iterator();
            while (taskIterator.hasNext())
            {
                FutureTask task = taskIterator.next();
                task.cancel(true);
            }
            tasks.clear();
        }
    }

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     * @throws QueryInterruptedException if the operation is cancelled (by the user in another thread)
     */
    protected Object performExecuteTask(final Object... args)
    {
        Integer timeout = getTimeoutMillis();
        FutureTask theTask = null;
        final Object[] threadResults = new Object[1];
        try
        {
            // Execute the query in its own thread so we can time it out
            theTask = new FutureTask(new Runnable()
            {
                public void run()
                {
                    threadResults[0] = performExecuteInternal(args);
                }
            }, null);
            tasks.add(theTask);


            // start task in a new thread
            if (NucleusLogger.QUERY.isDebugEnabled())
            {
                if (timeout != null && timeout > 0)
                {
                    NucleusLogger.QUERY.debug(LOCALISER.msg("021019", toString(), timeout));
                }
                else
                {
                    NucleusLogger.QUERY.debug(LOCALISER.msg("021022", toString()));
                }
            }
            new Thread(theTask).start();


            // wait for the execution to finish, timeout after the users limit is exceeded if required
            if (timeout != null && timeout > 0)
            {
                theTask.get(timeout, TimeUnit.MILLISECONDS);
            }
            else
            {
                theTask.get();
            }
            tasks.remove(theTask);
        }
        catch (TimeoutException e)
        {

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     * @param results The results
     * @return The query task
     */
    protected FutureTask getPerformExecuteTask(final Map parameters, final Object[] results)
    {
        FutureTask theTask = new FutureTask(new Runnable()
        {
            public void run()
            {
                results[0] = performExecute(parameters);
            }

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      return recvBuf;
    }


    ExecutorService executor = Executors.newSingleThreadExecutor();
    MultiFetch multiFetch = new MultiFetch();
    FutureTask<?> task = new FutureTask(multiFetch, null);
    executor.execute(task);
    try {
      task.get(fetchTimeoutSeconds, TimeUnit.SECONDS);
    } catch(InterruptedException ie) {
      // attempt to cancel execution of the task.
      task.cancel(true);
      LOG.error("interrupted during fetch: "+ie.toString());
    } catch(ExecutionException ee) {
      // attempt to cancel execution of the task.
      task.cancel(true);
      LOG.error("exception during fetch: "+ee.toString());
    } catch(TimeoutException te) {
      // attempt to cancel execution of the task.  
      task.cancel(true);
      LOG.error("timeout for fetch: "+te.toString());
    }


    executor.shutdownNow();
    multiFetch.close();

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