Examples with SubscriptionAcknowledgement org.eclipse.milo.opcua.stack.core.types.structured.SubscriptionAcknowledgement used on opensource projects

Example 1 with SubscriptionAcknowledgement

use of org.eclipse.milo.opcua.stack.core.types.structured.SubscriptionAcknowledgement in project milo by eclipse.

the class SubscriptionManager method publish.

public void publish(ServiceRequest service) {
    PublishRequest request = (PublishRequest) service.getRequest();
    SubscriptionAcknowledgement[] acknowledgements = request.getSubscriptionAcknowledgements();
    if (acknowledgements != null) {
        StatusCode[] results = new StatusCode[acknowledgements.length];
        for (int i = 0; i < acknowledgements.length; i++) {
            SubscriptionAcknowledgement acknowledgement = acknowledgements[i];
            UInteger sequenceNumber = acknowledgement.getSequenceNumber();
            UInteger subscriptionId = acknowledgement.getSubscriptionId();
            Subscription subscription = subscriptions.get(subscriptionId);
            if (subscription == null) {
                logger.debug("Can't acknowledge sequenceNumber={} on subscriptionId={}; id not valid for this session", sequenceNumber, subscriptionId);
                results[i] = new StatusCode(StatusCodes.Bad_SubscriptionIdInvalid);
            } else {
                logger.debug("Acknowledging sequenceNumber={} on subscriptionId={}", sequenceNumber, subscriptionId);
                results[i] = subscription.acknowledge(sequenceNumber);
            }
        }
        service.attr(KEY_ACK_RESULTS).set(results);
    }
    if (!transferred.isEmpty()) {
        Subscription subscription = transferred.remove(0);
        subscription.returnStatusChangeNotification(service, new StatusCode(StatusCodes.Good_SubscriptionTransferred));
        return;
    }
    if (subscriptions.isEmpty()) {
        service.setServiceFault(StatusCodes.Bad_NoSubscription);
        return;
    }
    publishQueue.addRequest(service);
}

Example 2 with SubscriptionAcknowledgement

use of org.eclipse.milo.opcua.stack.core.types.structured.SubscriptionAcknowledgement in project milo by eclipse.

the class OpcUaSubscriptionManager method sendPublishRequest.

private void sendPublishRequest(UaSession session, AtomicLong pendingCount) {
    List<SubscriptionAcknowledgement> subscriptionAcknowledgements = new ArrayList<>();
    subscriptions.values().forEach(subscription -> {
        synchronized (subscription.availableAcknowledgements) {
            subscription.availableAcknowledgements.forEach(sequenceNumber -> subscriptionAcknowledgements.add(new SubscriptionAcknowledgement(subscription.getSubscriptionId(), sequenceNumber)));
            subscription.availableAcknowledgements.clear();
        }
    });
    RequestHeader requestHeader = client.getStackClient().newRequestHeader(session.getAuthenticationToken(), getTimeoutHint());
    UInteger requestHandle = requestHeader.getRequestHandle();
    PublishRequest request = new PublishRequest(requestHeader, subscriptionAcknowledgements.toArray(new SubscriptionAcknowledgement[0]));
    if (logger.isDebugEnabled()) {
        String[] ackStrings = subscriptionAcknowledgements.stream().map(ack -> String.format("id=%s/seq=%s", ack.getSubscriptionId(), ack.getSequenceNumber())).toArray(String[]::new);
        logger.debug("Sending PublishRequest, requestHandle={}, acknowledgements={}", requestHandle, Arrays.toString(ackStrings));
    }
    client.<PublishResponse>sendRequest(request).whenComplete((response, ex) -> {
        if (response != null) {
            logger.debug("Received PublishResponse, sequenceNumber={}", response.getNotificationMessage().getSequenceNumber());
            processingQueue.submit(() -> onPublishComplete(response, pendingCount));
        } else {
            StatusCode statusCode = UaException.extract(ex).map(UaException::getStatusCode).orElse(StatusCode.BAD);
            logger.debug("Publish service failure (requestHandle={}): {}", requestHandle, statusCode, ex);
            pendingCount.getAndUpdate(p -> (p > 0) ? p - 1 : 0);
            if (statusCode.getValue() != StatusCodes.Bad_NoSubscription && statusCode.getValue() != StatusCodes.Bad_TooManyPublishRequests) {
                maybeSendPublishRequests();
            }
            UaException uax = UaException.extract(ex).orElse(new UaException(ex));
            subscriptionListeners.forEach(l -> l.onPublishFailure(uax));
        }
    });
}