C++ SubscriptionRequest::setSubscribeToName方法代码示例

/**
  * Trigger:    The dispatcher receives a SubscriptionRequest.
  * Expected:   The PublicationManager creates a PublisherRunnable and polls
  *             the MockCaller for the attribute.
  */
TEST_F(SubscriptionTest, receive_subscriptionRequestAndPollAttribute) {

    // Use a semaphore to count and wait on calls to the mockRequestCaller
    Semaphore semaphore(0);
    EXPECT_CALL(*mockRequestCaller, getLocation(_,_))
            .WillRepeatedly(
                DoAll(
                    Invoke(mockRequestCaller.get(), &MockTestRequestCaller::invokeLocationOnSuccessFct),
                    ReleaseSemaphore(&semaphore)));

    std::string attributeName = "Location";
    Variant subscriptionQos = Variant::make<OnChangeWithKeepAliveSubscriptionQos>(OnChangeWithKeepAliveSubscriptionQos(
                500, // validity_ms
                1000, // minInterval_ms
                2000, // maxInterval_ms
                1000 // alertInterval_ms
    ));
    std::string subscriptionId = "SubscriptionID";
    SubscriptionRequest subscriptionRequest;
    subscriptionRequest.setSubscriptionId(subscriptionId);
    subscriptionRequest.setSubscribeToName(attributeName);
    subscriptionRequest.setQos(subscriptionQos);

    JoynrMessage msg = messageFactory.createSubscriptionRequest(
                proxyParticipantId,
                providerParticipantId,
                qos,
                subscriptionRequest);

    dispatcher.addRequestCaller(providerParticipantId, mockRequestCaller);
    dispatcher.receive(msg);

    // Wait for a call to be made to the mockRequestCaller
    ASSERT_TRUE(semaphore.waitFor(std::chrono::seconds(1)));
}

/**
  * Precondition: A provider is registered and there is at least one subscription for it.
  * Trigger:    A subscription stop message is received
  * Expected:   The PublicationManager stops the publications for this provider
  */
TEST_F(SubscriptionTest, stopMessage_stopsPublications) {

    qRegisterMetaType<QtOnChangeWithKeepAliveSubscriptionQos>("QtOnChangeWithKeepAliveSubscriptionQos");
    qRegisterMetaType<SubscriptionRequest>("SubscriptionRequest");

    // Use a semaphore to count and wait on calls to the mockRequestCaller
    QSemaphore semaphore(0);
    EXPECT_CALL(*mockRequestCaller, getLocation(_))
            .WillRepeatedly(
                DoAll(
                    Invoke(mockRequestCaller.data(), &MockTestRequestCaller::invokeOnSuccessFct),
                    ReleaseSemaphore(&semaphore)));

    dispatcher.addRequestCaller(providerParticipantId, mockRequestCaller);
    QString attributeName = "Location";
    auto subscriptionQos = QSharedPointer<QtSubscriptionQos>(new QtOnChangeWithKeepAliveSubscriptionQos(
                1200, // validity_ms
                10, // minInterval_ms
                100, // maxInterval_ms
                1100 // alertInterval_ms
    ));
    QString subscriptionId = "SubscriptionID";
    SubscriptionRequest subscriptionRequest;
    subscriptionRequest.setSubscriptionId(subscriptionId);
    subscriptionRequest.setSubscribeToName(attributeName);
    subscriptionRequest.setQos(subscriptionQos);

    JoynrMessage msg = messageFactory.createSubscriptionRequest(
                QString::fromStdString(proxyParticipantId),
                QString::fromStdString(providerParticipantId),
                qos,
                subscriptionRequest);
    // first received message with subscription request
    dispatcher.receive(msg);

    // wait for two requests from the subscription
    ASSERT_TRUE(semaphore.tryAcquire(2, 1000));

    SubscriptionStop subscriptionStop;
    subscriptionStop.setSubscriptionId(subscriptionRequest.getSubscriptionId());
    // receive a subscription stop message
    msg = messageFactory.createSubscriptionStop(
                QString::fromStdString(proxyParticipantId),
                QString::fromStdString(providerParticipantId),
                qos,
                subscriptionStop);
    dispatcher.receive(msg);

    // assert that less than 2 requests happen in the next 300 milliseconds
    ASSERT_FALSE(semaphore.tryAcquire(2, 300));
}

void ClassDeserializerImpl<SubscriptionRequest>::deserialize(
        SubscriptionRequest& subscriptionRequest,
        IObject& o)
{
    while (o.hasNextField()) {
        IField& field = o.nextField();
        if (field.name() == "subscriptionId") {
            subscriptionRequest.setSubscriptionId(field.value());
        }
        if (field.name() == "subscribedToName") {
            subscriptionRequest.setSubscribeToName(field.value());
        }
        if (field.name() == "qos") {
            Variant qos = convertVariant(field.value());
            subscriptionRequest.setQos(qos);
        }
    }
}

void SubscriptionManager::registerSubscription(
        const std::string& subscribeToName,
        std::shared_ptr<ISubscriptionCallback> subscriptionCaller,
        const Variant& qosVariant,
        SubscriptionRequest& subscriptionRequest)
{
    // Register the subscription
    std::string subscriptionId = subscriptionRequest.getSubscriptionId();
    JOYNR_LOG_DEBUG(logger, "Subscription registered. ID={}", subscriptionId);

    if (subscriptions.contains(subscriptionId)) {
        // pre-existing subscription: remove it first from the internal data structure
        unregisterSubscription(subscriptionId);
    }

    std::int64_t now = std::chrono::duration_cast<std::chrono::milliseconds>(
                               std::chrono::system_clock::now().time_since_epoch()).count();
    subscriptionRequest.setQos(qosVariant);
    const SubscriptionQos* qos = subscriptionRequest.getSubscriptionQosPtr();
    if (qos->getExpiryDateMs() != SubscriptionQos::NO_EXPIRY_DATE() &&
        qos->getExpiryDateMs() < now) {
        throw std::invalid_argument("Subscription ExpiryDate " +
                                    std::to_string(qos->getExpiryDateMs()) + " in the past. Now: " +
                                    std::to_string(now));
    }

    auto subscription = std::make_shared<Subscription>(subscriptionCaller);

    subscriptions.insert(subscriptionId, subscription);

    {
        std::lock_guard<std::recursive_mutex> subscriptionLocker(subscription->mutex);
        if (SubscriptionUtil::getAlertInterval(qosVariant) > 0 &&
            SubscriptionUtil::getPeriodicPublicationInterval(qosVariant) > 0) {
            JOYNR_LOG_DEBUG(logger, "Will notify if updates are missed.");
            std::int64_t alertAfterInterval = SubscriptionUtil::getAlertInterval(qosVariant);
            JoynrTimePoint expiryDate(std::chrono::milliseconds(qos->getExpiryDateMs()));
            if (qos->getExpiryDateMs() == SubscriptionQos::NO_EXPIRY_DATE()) {
                expiryDate = JoynrTimePoint(
                        std::chrono::milliseconds(std::numeric_limits<std::int64_t>::max()));
            }
            std::int64_t periodicPublicationInterval =
                    SubscriptionUtil::getPeriodicPublicationInterval(qosVariant);

            subscription->missedPublicationRunnableHandle = missedPublicationScheduler->schedule(
                    new MissedPublicationRunnable(expiryDate,
                                                  periodicPublicationInterval,
                                                  subscriptionId,
                                                  subscription,
                                                  *this,
                                                  alertAfterInterval),
                    std::chrono::milliseconds(alertAfterInterval));
        } else if (qos->getExpiryDateMs() != SubscriptionQos::NO_EXPIRY_DATE()) {
            std::int64_t now = std::chrono::duration_cast<std::chrono::milliseconds>(
                                       std::chrono::system_clock::now().time_since_epoch()).count();
            subscription->subscriptionEndRunnableHandle = missedPublicationScheduler->schedule(
                    new SubscriptionEndRunnable(subscriptionId, *this),
                    std::chrono::milliseconds(qos->getExpiryDateMs() - now));
        }
    }
    subscriptionRequest.setSubscriptionId(subscriptionId);
    subscriptionRequest.setSubscribeToName(subscribeToName);
}