List of leaseTasks() Examples

Examples of leaseTasks()

com.google.appengine.api.taskqueue.Queue.leaseTasks()
Leases up to {@code countLimit} tasks from this queue for a period specified by{@code lease} and {@code unit}. If fewer tasks than {@code countLimit} are available, allavailable tasks in this {@link Queue} will be returned. The available tasks are those in thequeue having the earliest eta such that eta is prior to the time at which the lease is requested. It is guaranteed that the leased tasks will be unavailable for lease to others in the lease period. You must call deleteTask to prevent the task from being leased again after the lease period. This method supports leasing a maximum of 1000 tasks for no more than one week. If you generate more than 10 LeaseTasks requests per second, only the first 10 requests will return results. The others will return no results. @param lease Number of {@code unit}s in the lease period @param unit Time unit of the lease period @param countLimit maximum number of tasks to lease @return A list of {@link TaskHandle} for each leased task. @throws InvalidQueueModeException if the target queue is not in pull mode. @throws IllegalArgumentException if lease < 0, countLimit <= 0 or either is too large. @throws InternalFailureException @throws IllegalStateException If the queue does not exist. (see queue.xml) @throws TransientFailureException Attempting the request after this exception may succeed.

Examples of com.google.appengine.api.taskqueue.Queue.leaseTasks()

    }


    @Test(expected = InvalidQueueModeException.class)
    public void testLeaseTaskFromPushQueueThrowsException() {
        Queue pushQueue = QueueFactory.getDefaultQueue();
        pushQueue.leaseTasks(1000, TimeUnit.SECONDS, 1);
    }


    @Test
    public void testOnlyPullTasksCanBeAddedToPullQueue() {
        Queue pullQueue = QueueFactory.getQueue("pull-queue");

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Examples of com.google.appengine.api.taskqueue.Queue.leaseTasks()

    public void testPullParams() throws Exception {
        final Queue queue = QueueFactory.getQueue("pull-queue");
        TaskHandle th = queue.add(withMethod(PULL).param("foo", "bar").etaMillis(15000));
        sync();
        try {
            List<TaskHandle> handles = queue.leaseTasks(30, TimeUnit.MINUTES, 100);
            assertFalse(handles.isEmpty());
            TaskHandle lh = handles.get(0);
            assertEquals(th.getName(), lh.getName());
        } finally {
            queue.deleteTask(th);

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Examples of com.google.appengine.api.taskqueue.Queue.leaseTasks()

    public void testPullPayload() throws Exception {
        final Queue queue = QueueFactory.getQueue("pull-queue");
        TaskHandle th = queue.add(withMethod(PULL).payload("foobar".getBytes()).etaMillis(15000));
        sync();
        try {
            List<TaskHandle> handles = queue.leaseTasks(30, TimeUnit.MINUTES, 100);
            assertFalse(handles.isEmpty());
            TaskHandle lh = handles.get(0);
            assertEquals(th.getName(), lh.getName());
        } finally {
            queue.deleteTask(th);

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Examples of com.google.appengine.api.taskqueue.Queue.leaseTasks()

        TaskHandle th1 = queue.add(withMethod(PULL));
        TaskHandle th2 = queue.add(withMethod(PULL));
        sync();
        try {
            int countLimit = 1;
            List<TaskHandle> handles = queue.leaseTasks(10, TimeUnit.SECONDS, countLimit);
            assertEquals(countLimit, handles.size());
        } finally {
            queue.deleteTask(th1);
            queue.deleteTask(th2);
        }

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Examples of com.google.appengine.api.taskqueue.Queue.leaseTasks()

    }


    @Test(expected = InvalidQueueModeException.class)
    public void testLeaseFromNonPullQueue() {
        Queue remoteQueue = QueueFactory.getQueue(E2E_TESTING_REMOTE);
        remoteQueue.leaseTasks(1, TimeUnit.MILLISECONDS, 1);
    }


    @Test(expected = IllegalStateException.class)
    public void testLeaseNonExistQueue() {
        Queue nonExistQueue = QueueFactory.getQueue("nonExistQueue");

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Examples of com.google.appengine.api.taskqueue.Queue.leaseTasks()

    }


    @Test(expected = IllegalStateException.class)
    public void testLeaseNonExistQueue() {
        Queue nonExistQueue = QueueFactory.getQueue("nonExistQueue");
        nonExistQueue.leaseTasks(1, TimeUnit.MILLISECONDS, 1);
    }


    @Test(expected = IllegalStateException.class)
    public void testDeleteNonExist() {
        Queue nonExistQueue = QueueFactory.getQueue("nonExistQueue");

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Examples of com.google.appengine.api.taskqueue.Queue.leaseTasks()

    public void testBasics() throws Exception {
        final Queue queue = QueueFactory.getQueue("pull-queue");
        sync(2000L);
        TaskHandle th = queue.add(TaskOptions.Builder.withMethod(TaskOptions.Method.PULL).param("foo", "bar".getBytes()));
        try {
            List<TaskHandle> handles = queue.leaseTasks(30, TimeUnit.MINUTES, 100);
            Assert.assertFalse(handles.isEmpty());
            Assert.assertEquals(1, handles.size());
            TaskHandle lh = handles.get(0);
            Assert.assertEquals(th.getName(), lh.getName());
            sync(5000L);

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