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

Example 16 with RequestHeader

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

the class DiscoveryClient method getEndpoints.

/**
 * Query the GetEndpoints service at {@code endpointUrl}.
 *
 * @param endpointUrl the endpoint URL to get endpoints from.
 * @param localeIds   list of locales to use. Specifies the locale to use when returning human-readable strings.
 * @param profileUris list of Transport Profile that the returned Endpoints shall support. All Endpoints are
 *                    returned if the list is empty.
 * @return the {@link GetEndpointsResponse} returned by the GetEndpoints service.
 */
public CompletableFuture<GetEndpointsResponse> getEndpoints(String endpointUrl, String[] localeIds, String[] profileUris) {
    RequestHeader header = stackClient.newRequestHeader(NodeId.NULL_VALUE, stackClient.getConfig().getRequestTimeout());
    GetEndpointsRequest request = new GetEndpointsRequest(header, endpointUrl, localeIds, profileUris);
    return stackClient.sendRequest(request).thenApply(GetEndpointsResponse.class::cast);
}

Example 17 with RequestHeader

use of org.eclipse.milo.opcua.stack.core.types.structured.RequestHeader 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));
        }
    });
}

Example 18 with RequestHeader

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

the class ClientServerTest method testClientReconnect.

@Test
public void testClientReconnect() throws Exception {
    EndpointDescription endpoint = endpoints[0];
    Variant input = new Variant(42);
    logger.info("SecurityPolicy={}, MessageSecurityMode={}, input={}", SecurityPolicy.fromUri(endpoint.getSecurityPolicyUri()), endpoint.getSecurityMode(), input);
    UaStackClient client = createClient(endpoint);
    client.connect().get();
    RequestHeader header = new RequestHeader(NodeId.NULL_VALUE, DateTime.now(), uint(0), uint(0), null, DEFAULT_TIMEOUT_HINT, null);
    ReadRequest request = new ReadRequest(header, 0.0, TimestampsToReturn.Neither, new ReadValueId[] { new ReadValueId(NodeId.NULL_VALUE, AttributeId.Value.uid(), null, null) });
    logger.info("sending request: {}", request);
    UaResponseMessage response0 = client.sendRequest(request).get();
    logger.info("got response: {}", response0);
    logger.info("initiating a reconnect by closing channel in server...");
    server.getConnectedChannels().forEach(c -> {
        try {
            c.close().await();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    });
    logger.info("sending request: {}", request);
    try {
        UaResponseMessage response1 = client.sendRequest(request).get();
        logger.info("got response: {}", response1);
    } catch (Exception e) {
        // try again because close() above is a race condition
        UaResponseMessage response1 = client.sendRequest(request).get();
        logger.info("got response: {}", response1);
    }
    client.disconnect().get();
}