Example usage for java.util.concurrent Future isCancelled

Introduction

In this page you can find the example usage for java.util.concurrent Future isCancelled.

Prototype

boolean isCancelled();

Source Link

Document

Returns true if this task was cancelled before it completed normally.

Usage

From source file:eu.europa.ec.fisheries.uvms.plugins.ais.service.AisService.java

@PreDestroy
public void destroy() {
    if (connection != null) {
        connection.close();/*ww  w.  ja  v  a 2 s  .com*/
    }
    Iterator<Future<Long>> processIterator = processes.iterator();
    while (processIterator.hasNext()) {
        Future<Long> process = processIterator.next();
        if (process.isDone() || process.isCancelled()) {
            processIterator.remove();
        } else {
            process.cancel(true);
        }
    }
}

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From source file:com.company.project.service.TaskSchedulerService.java

@Scheduled(fixedRate = 60000)
public void schedulerFixedRate() {
    System.out.println("schedulerFixedRate. Current time is :: " + new Date());

    // spring managed thread
    TaskExample taskExample = new TaskExample();
    taskExample.setName("Thread 1");
    taskExecutor.execute(taskExample);//from   www.  j  a v a2  s  .  c  o m

    asyncMethod();

    taskExample = new TaskExample();
    taskExample.setName("Thread 2");
    taskExecutor.execute(taskExample);

    taskExample = new TaskExample();
    taskExample.setName("Thread 3");
    Future future = taskExecutor.submit(taskExample);
    System.out.println("Thread 3 future.isCancelled() :: " + future.isCancelled());
    System.out.println("Thread 3 future.isDone() :: " + future.isDone());
    while (!future.isDone()) {
        try {
            Thread.sleep(1000);
        } catch (Exception e) {
        }
    }
    System.out.println("Thread 3 future.isDone() :: " + future.isDone()); // future.isDone() = true

    AsyncTask asyncTask = new AsyncTask();
    asyncTask.doAsyncTask();
}

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From source file:eu.europa.ec.fisheries.uvms.plugins.ais.service.AisService.java

@Schedule(minute = "*/1", hour = "*", persistent = false)
public void connectAndRetrive() {
    if (!startUp.isEnabled()) {
        return;//  w ww  .j a va 2 s.co  m
    }
    if (connection != null && !connection.isOpen()) {
        String host = startUp.getSetting("HOST");
        int port = Integer.parseInt(startUp.getSetting("PORT"));
        String username = startUp.getSetting("USERNAME");
        String password = startUp.getSetting("PASSWORD");

        connection.open(host, port, username, password);
    }

    if (connection != null && connection.isOpen()) {
        Iterator<Future<Long>> processIterator = processes.iterator();
        while (processIterator.hasNext()) {
            Future<Long> process = processIterator.next();
            if (process.isDone() || process.isCancelled()) {
                processIterator.remove();
            }
        }
        List<String> sentences = connection.getSentences();
        Future<Long> process = processService.processMessages(sentences);
        processes.add(process);
        LOG.info("Got {} sentences from AIS RA. Currently running {} parallel threads", sentences.size(),
                processes.size());
    }
}

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From source file:com.ejisto.modules.executor.TaskManager.java

private ExecutionState getExecutionState(Future<?> future) {
    if (future.isCancelled()) {
        return ExecutionState.CANCELED;
    }/*from  w  ww .  java2  s .  c  o m*/
    if (future.isDone()) {
        return ExecutionState.DONE;
    }
    return ExecutionState.RUNNING;
}

---

From source file:com.creactiviti.piper.core.Worker.java

/**
 * Handle the execution of a {@link TaskExecution}. Implementors
 * are expected to execute the task asynchronously. 
 * /* w  ww .  j a  va 2  s . c  o m*/
 * @param aTask
 *          The task to execute.
 */
public void handle(TaskExecution aTask) {
    Future<?> future = executors.submit(() -> {
        try {
            long startTime = System.currentTimeMillis();
            logger.debug("Recived task: {}", aTask);
            TaskHandler<?> taskHandler = taskHandlerResolver.resolve(aTask);
            eventPublisher.publishEvent(
                    PiperEvent.of(Events.TASK_STARTED, "taskId", aTask.getId(), "jobId", aTask.getJobId()));
            Object output = taskHandler.handle(aTask);
            SimpleTaskExecution completion = SimpleTaskExecution.createForUpdate(aTask);
            if (output != null) {
                if (completion.getOutput() != null) {
                    TaskExecution evaluated = taskEvaluator.evaluate(completion,
                            new MapContext("execution", new MapContext("output", output)));
                    completion = SimpleTaskExecution.createForUpdate(evaluated);
                } else {
                    completion.setOutput(output);
                }
            }
            completion.setStatus(TaskStatus.COMPLETED);
            completion.setProgress(100);
            completion.setEndTime(new Date());
            completion.setExecutionTime(System.currentTimeMillis() - startTime);
            messenger.send(Queues.COMPLETIONS, completion);
        } catch (InterruptedException e) {
            // ignore
        } catch (Exception e) {
            Future<?> myFuture = taskExecutions.get(aTask.getId());
            if (!myFuture.isCancelled()) {
                handleException(aTask, e);
            }
        } finally {
            taskExecutions.remove(aTask.getId());
        }
    });

    taskExecutions.put(aTask.getId(), future);

    try {
        future.get(calculateTimeout(aTask), TimeUnit.MILLISECONDS);
    } catch (InterruptedException | ExecutionException | TimeoutException e) {
        handleException(aTask, e);
    } catch (CancellationException e) {
        logger.debug("Cancelled task: {}", aTask.getId());
    }

}

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From source file:com.flipkart.poseidon.serviceclients.FutureTaskResultToDomainObjectPromiseWrapper.java

@Override
public boolean isFullfilled() throws IllegalStateException {
    for (Future<TaskResult> future : futureList) {
        if (future.isCancelled()) {
            return false;
        }//  w  w  w.ja  va  2 s.  c o  m
    }
    return true;
}

---

From source file:com.flipkart.poseidon.serviceclients.FutureTaskResultToDomainObjectPromiseWrapper.java

@Override
public boolean isBroken() throws IllegalStateException {
    for (Future<TaskResult> future : futureList) {
        if (future.isCancelled()) {
            return true;
        }//from  w  w  w .  j  a v a2 s.c o  m
    }
    return false;
}

---

From source file:com.ejisto.modules.executor.TaskManager.java

private void refreshTasksList() {
    if (!lock.tryLock()) {
        return;//from  w  w w .  j ava  2  s  .  co m
    }
    try {
        registry.entrySet().stream().filter(e -> {
            Future<?> future = e.getValue().getFuture();
            return future.isCancelled() || future.isDone();
        }).collect(toList()).forEach(e -> registry.remove(e.getKey(), e.getValue()));
    } finally {
        lock.unlock();
    }

}

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From source file:com.jillesvangurp.httpclientfuture.HttpClientWithFutureTest.java

@Test(invocationCount = 3)
public void shouldInvokeMultiple() throws ExecutionException, TimeoutException {
    long before = SimpleServlet.counter.get();
    HttpGet req1 = new HttpGet(UrlBuilder.url("localhost", port).append("ping").queryParam("sleep", "10")
            .queryParam("req", "shouldInvokeMultiple_1").build());
    HttpGet req2 = new HttpGet(UrlBuilder.url("localhost", port).append("ping").queryParam("sleep", "10")
            .queryParam("req", "shouldInvokeMultiple_2").build());
    HttpGet req3 = new HttpGet(UrlBuilder.url("localhost", port).append("ping").queryParam("sleep", "3000")
            .queryParam("req", "shouldInvokeMultiple_3").build());
    try {//from w  w  w. ja v  a 2 s .  c om
        List<Future<Boolean>> futures = client.executeMultiple(null, 100, TimeUnit.MILLISECONDS, req1, req2,
                req3);
        int cancelled = 0;
        for (Future<Boolean> future : futures) {
            if (future.isCancelled()) {
                cancelled++;
            } else {
                boolean done = future.isDone();
                if (done) {
                    future.get(1, TimeUnit.MILLISECONDS);
                }

            }
        }
        assertThat(cancelled, is(1));
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
    long after = SimpleServlet.counter.get();
    assertThat(after, is(before + 2));
}

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From source file:com.amazon.alexa.avs.NotificationManager.java

private void cleanUpIndicatorFutures() {
    synchronized (indicatorFutures) {
        Iterator<Future<?>> it = indicatorFutures.iterator();
        while (it.hasNext()) {
            Future<?> f = it.next();
            if (f.isDone() || f.isCancelled()) {
                it.remove();//  ww w.j av a 2  s  . co m
            }
        }
    }
}

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