Examples with UaSession org.eclipse.milo.opcua.sdk.client.api.UaSession used on opensource projects

Example 1 with UaSession

use of org.eclipse.milo.opcua.sdk.client.api.UaSession in project JBM by numen06.

the class OpcUaClientBean method startUp.

@Override
protected void startUp() throws Exception {
    // add
    log.info("OPCUA客户端[{}]开始启动执行守护线程", deviceId);
    this.opcUaClient.addSessionActivityListener(new SessionActivityListener() {

        @Override
        public void onSessionActive(UaSession session) {
            log.info("PLC[{}][{}]建立链接成功", deviceId, session.getSessionName());
        }

        @Override
        public void onSessionInactive(UaSession session) {
            log.info("PLC[{}][{}]断开了链接", deviceId, session.getSessionName());
        }
    });
}

Example 2 with UaSession

use of org.eclipse.milo.opcua.sdk.client.api.UaSession 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));
        }
    });
}