private static uint CreateSubscription(IServerTestServices services, RequestHeader requestHeader)
{
// start time
requestHeader.Timestamp = DateTime.UtcNow;
// create subscription
double publishingInterval = 1000.0;
uint lifetimeCount = 60;
uint maxKeepAliveCount = 2;
uint maxNotificationPerPublish = 0;
byte priority = 128;
bool enabled = false;
var response = services.CreateSubscription(requestHeader,
publishingInterval, lifetimeCount, maxKeepAliveCount,
maxNotificationPerPublish, enabled, priority,
out uint id, out double revisedPublishingInterval, out uint revisedLifetimeCount, out uint revisedMaxKeepAliveCount);
ServerFixtureUtils.ValidateResponse(response);
return(id);
}
/// <summary>
/// Worker method to test subscriptions of a server.
/// </summary>
/// <param name="services"></param>
/// <param name="requestHeader"></param>
public static void SubscriptionTest(
IServerTestServices services,
RequestHeader requestHeader)
{
// start time
requestHeader.Timestamp = DateTime.UtcNow;
// create subscription
double publishingInterval = 1000.0;
uint lifetimeCount = 60;
uint maxKeepAliveCount = 2;
uint maxNotificationPerPublish = 0;
byte priority = 128;
bool enabled = false;
uint queueSize = 5;
var response = services.CreateSubscription(requestHeader,
publishingInterval, lifetimeCount, maxKeepAliveCount,
maxNotificationPerPublish, enabled, priority,
out uint id, out double revisedPublishingInterval, out uint revisedLifetimeCount, out uint revisedMaxKeepAliveCount);
Assert.AreEqual(publishingInterval, revisedPublishingInterval);
Assert.AreEqual(lifetimeCount, revisedLifetimeCount);
Assert.AreEqual(maxKeepAliveCount, revisedMaxKeepAliveCount);
ServerFixtureUtils.ValidateResponse(response);
MonitoredItemCreateRequestCollection itemsToCreate = new MonitoredItemCreateRequestCollection();
// check badnothingtodo
var sre = Assert.Throws <ServiceResultException>(() =>
services.CreateMonitoredItems(requestHeader, id, TimestampsToReturn.Neither, itemsToCreate,
out MonitoredItemCreateResultCollection mockResults, out DiagnosticInfoCollection mockInfos));
Assert.AreEqual(StatusCodes.BadNothingToDo, sre.StatusCode);
// add item
uint handleCounter = 1;
itemsToCreate.Add(new MonitoredItemCreateRequest()
{
ItemToMonitor = new ReadValueId()
{
AttributeId = Attributes.Value,
NodeId = VariableIds.Server_ServerStatus_CurrentTime
},
MonitoringMode = MonitoringMode.Reporting,
RequestedParameters = new MonitoringParameters()
{
ClientHandle = ++handleCounter,
SamplingInterval = -1,
Filter = null,
DiscardOldest = true,
QueueSize = queueSize
}
});
response = services.CreateMonitoredItems(requestHeader, id, TimestampsToReturn.Neither, itemsToCreate,
out MonitoredItemCreateResultCollection itemCreateResults, out DiagnosticInfoCollection diagnosticInfos);
ServerFixtureUtils.ValidateResponse(response);
ServerFixtureUtils.ValidateDiagnosticInfos(diagnosticInfos, itemsToCreate);
// modify subscription
response = services.ModifySubscription(requestHeader, id,
publishingInterval, lifetimeCount, maxKeepAliveCount,
maxNotificationPerPublish, priority,
out revisedPublishingInterval, out revisedLifetimeCount, out revisedMaxKeepAliveCount);
Assert.AreEqual(publishingInterval, revisedPublishingInterval);
Assert.AreEqual(lifetimeCount, revisedLifetimeCount);
Assert.AreEqual(maxKeepAliveCount, revisedMaxKeepAliveCount);
ServerFixtureUtils.ValidateResponse(response);
// modify monitored item, just timestamps to return
var itemsToModify = new MonitoredItemModifyRequestCollection();
foreach (var itemCreated in itemCreateResults)
{
itemsToModify.Add(
new MonitoredItemModifyRequest()
{
MonitoredItemId = itemCreated.MonitoredItemId
});
}
;
response = services.ModifyMonitoredItems(requestHeader, id, TimestampsToReturn.Both, itemsToModify,
out MonitoredItemModifyResultCollection modifyResults, out diagnosticInfos);
ServerFixtureUtils.ValidateResponse(response);
ServerFixtureUtils.ValidateDiagnosticInfos(diagnosticInfos, itemsToModify);
// publish request
var acknoledgements = new SubscriptionAcknowledgementCollection();
response = services.Publish(requestHeader, acknoledgements,
out uint subscriptionId, out UInt32Collection availableSequenceNumbers,
out bool moreNotifications, out NotificationMessage notificationMessage,
out StatusCodeCollection statuses, out diagnosticInfos);
ServerFixtureUtils.ValidateResponse(response);
ServerFixtureUtils.ValidateDiagnosticInfos(diagnosticInfos, acknoledgements);
Assert.AreEqual(id, subscriptionId);
Assert.AreEqual(0, availableSequenceNumbers.Count);
// enable publishing
enabled = true;
var subscriptions = new UInt32Collection()
{
id
};
response = services.SetPublishingMode(requestHeader, enabled, subscriptions,
out statuses, out diagnosticInfos);
ServerFixtureUtils.ValidateResponse(response);
ServerFixtureUtils.ValidateDiagnosticInfos(diagnosticInfos, subscriptions);
// wait some time to fill queue
int loopCounter = (int)queueSize;
Thread.Sleep(loopCounter * 1000);
acknoledgements = new SubscriptionAcknowledgementCollection();
do
{
// get publish responses
response = services.Publish(requestHeader, acknoledgements,
out subscriptionId, out availableSequenceNumbers,
out moreNotifications, out notificationMessage,
out statuses, out diagnosticInfos);
ServerFixtureUtils.ValidateResponse(response);
ServerFixtureUtils.ValidateDiagnosticInfos(diagnosticInfos, acknoledgements);
Assert.AreEqual(id, subscriptionId);
var dataChangeNotification = notificationMessage.NotificationData[0].Body as DataChangeNotification;
TestContext.Out.WriteLine("Notification: {0} {1} {2}",
notificationMessage.SequenceNumber,
dataChangeNotification?.MonitoredItems[0].Value.ToString(),
notificationMessage.PublishTime);
acknoledgements.Clear();
acknoledgements.Add(new SubscriptionAcknowledgement()
{
SubscriptionId = id,
SequenceNumber = notificationMessage.SequenceNumber
});
} while (acknoledgements.Count > 0 && --loopCounter > 0);
// republish
response = services.Republish(requestHeader, subscriptionId, notificationMessage.SequenceNumber, out notificationMessage);
ServerFixtureUtils.ValidateResponse(response);
// disable publishing
enabled = false;
response = services.SetPublishingMode(requestHeader, enabled, subscriptions,
out statuses, out diagnosticInfos);
ServerFixtureUtils.ValidateResponse(response);
ServerFixtureUtils.ValidateDiagnosticInfos(diagnosticInfos, subscriptions);
// delete subscription
response = services.DeleteSubscriptions(requestHeader, subscriptions, out statuses, out diagnosticInfos);
ServerFixtureUtils.ValidateResponse(response);
ServerFixtureUtils.ValidateDiagnosticInfos(diagnosticInfos, subscriptions);
}