Examples of java.util.concurrent.CountDownLatch.countDown()

Class java.util.concurrent.CountDownLatch

Examples of java.util.concurrent.CountDownLatch.countDown()

java.util.concurrent.CountDownLatch.countDown()
Decrements the count of the latch, releasing all waiting threads if the count reaches zero.
If the current count is greater than zero then it is decremented. If the new count is zero then all waiting threads are re-enabled for thread scheduling purposes.
If the current count equals zero then nothing happens.

    ViewFactory viewFactory = new SwingViewFactory();
    // 1. Create a very simple short task that simply counts down latch
    final CountDownLatch shortTaskLatch = new CountDownLatch(1);
    Callable<Void> shortTask = new Callable<Void>() {
        public Void call() throws Exception {
          shortTaskLatch.countDown();
          return null;
        }
      };
    // Create an exception handler that fails test if it was called
    ThreadedTaskController.ExceptionHandler noExceptionHandler =

View Full Code Here

    // 2. Create a longer task 
    final CountDownLatch longTaskLatch = new CountDownLatch(2);
    Callable<Void> longTask = new Callable<Void>() {
        public Void call() throws Exception {
          Thread.sleep(1000);
          longTaskLatch.countDown();
          return null;
        }
      };
    // Add a listener that counts down latch once a waiting dialog is displayed
    activeWindowListener = new PropertyChangeListener() {

View Full Code Here

        }
      };
    // Add a listener that counts down latch once a waiting dialog is displayed
    activeWindowListener = new PropertyChangeListener() {
          public void propertyChange(PropertyChangeEvent ev) {
            longTaskLatch.countDown();
          }
        };
    KeyboardFocusManager.getCurrentKeyboardFocusManager().
        addPropertyChangeListener("activeWindow", activeWindowListener);
    // Check that a long task creates a visible dialog at screen

View Full Code Here

    Callable<Void> cancelledTask = new Callable<Void>() {
        public Void call() throws Exception {
          try {
            Thread.sleep(1000);
          } catch (InterruptedException ex) {
            cancelledTaskLatch.countDown();
          }
          return null;
        }
      };
    // Add a listener that closes the waiting dialog

View Full Code Here


    // 4. Create a task that fails  
    final CountDownLatch failingTaskLatch = new CountDownLatch(2);
    Callable<Void> failingTask = new Callable<Void>() {
        public Void call() throws Exception {
          failingTaskLatch.countDown();
          throw new Exception();
        }
      };
    // Create an exception handler that counts down latch when it's called
    ThreadedTaskController.ExceptionHandler exceptionHandler =

View Full Code Here

      };
    // Create an exception handler that counts down latch when it's called
    ThreadedTaskController.ExceptionHandler exceptionHandler = 
        new ThreadedTaskController.ExceptionHandler() {
          public void handleException(Exception ex) {
            failingTaskLatch.countDown();
          }
        };
    // Check that a long task creates a visible dialog at screen
    new ThreadedTaskController(failingTask, "Message", exceptionHandler, preferences, viewFactory).executeTask(null);
    failingTaskLatch.await(1000, TimeUnit.MILLISECONDS);

View Full Code Here

      // a latch to check further if a rendering error happened during off screen rendering
      // (rendering error listener is called from a notification thread)
      final CountDownLatch latch = new CountDownLatch(1); 
      setRenderingErrorObserver(new RenderingErrorObserver() {
          public void errorOccured(int errorCode, String errorMessage) {
            latch.countDown();
          }
        });
      
      // Create an off screen canvas and bind it to view
      offScreenCanvas = getOffScreenCanvas3D(width, height);

View Full Code Here

                if (latch == null && req.getAttribute(AtmosphereResourceImpl.PRE_SUSPEND) == null) {
                    logger.debug("response wasn't suspended: {}", res);
                    return action;
                }


                latch.countDown();
                                                                  
                Action nextAction = resumed(req, res);
                if (nextAction.type == Action.TYPE.SUSPEND) {
                    logger.debug("Suspending after resuming response: {}", res);
                    suspend(action, req, res);

View Full Code Here

        if (req.getAttribute(LATCH) != null) {
            latchId = (Integer) req.getAttribute(LATCH);
        }
        CountDownLatch latch = latchs.remove(latchId);
        Action a = super.cancelled(req,res);
        latch.countDown();
        return a;        
    }


    /**
     * {@inheritDoc}

View Full Code Here

                    CountDownLatch latch = latchs.remove(latchId);
                    if (latch == null) {
                        logger.error("Unable to resume the suspended connection with latchId: {}", latchId);
                    }
                    else {
                        latch.countDown();
                    }
                }
                else if (req.getAttribute(AtmosphereResourceImpl.PRE_SUSPEND) == null) {
                    logger.error("Unable to resume the suspended connection");
                }

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.