public async Task HandleSaveOpcPublishedConfigurationAsJson_FormatIsRight_ShouldReinitializeNodeConfiguration(
string testFilename,
string testFileNameWithModifiedKey,
int configuredSessions,
int configuredSubscriptions,
int configuredMonitoredItems,
int configuredMonitoredEvents)
{
OpcNodeOnEndpointModel GetFirstNode()
{
var endpointId = NodeConfiguration.OpcSessions[0].EndpointId;
var nodes = NodeConfiguration.GetPublisherConfigurationFileEntries(endpointId, true, out uint version);
return(nodes[0].OpcNodes[0]);
}
using (new ExecutionContext(testFilename))
{
var hubCommunicationBase = new HubCommunicationBase();
AssertPreconditions(configuredSessions, configuredSubscriptions, configuredMonitoredItems, configuredMonitoredEvents);
// Get node before saving new file.
var opcNodeBeforeSave = GetFirstNode();
// ------- Act -----
// load different file with key change.
var modifiedFilePath = CopyFileToTempData(testFileNameWithModifiedKey);
// Read the file data as bytes
var text = await File.ReadAllTextAsync(modifiedFilePath);
var methodRequestModel = new HandleSaveOpcPublishedConfigurationMethodRequestModel(text);
var json = JsonConvert.SerializeObject(methodRequestModel);
var bytes = Encoding.UTF8.GetBytes(json);
var request = new MethodRequest("SaveOpcPublishedConfigurationAsJson", bytes);
// Feed the json string to the communication base
var success = await hubCommunicationBase.HandleSaveOpcPublishedConfigurationAsJson(request, new object());
// ------- Assert ------
// The preconditions should not change, since only the key of the node is changed.
AssertPreconditions(configuredSessions, configuredSubscriptions, configuredMonitoredItems, configuredMonitoredEvents);
Assert.True(success.Status == (int)HttpStatusCode.OK);
var opcNodeAfterSave = GetFirstNode();
Assert.Equal(opcNodeBeforeSave.Id, opcNodeBeforeSave.Id);
Assert.Equal("i=2267", opcNodeBeforeSave.Key);
Assert.Equal("i=2267-test", opcNodeAfterSave.Key);
}
}
/// <summary>
/// Handle get message properties method call.
/// </summary>
public virtual Task <MethodResponse> HandleGetMessagePropertiesMethodAsync(MethodRequest methodRequest, object userContext)
{
var response = new GetMessagePropertiesReponseModel();
var endpoints = NodeConfiguration.GetPublisherConfigurationFileEntries(Guid.Empty, false, out _)
.Select(e => new MessagePropertyValue(e.EndpointName, e.EndpointId.ToString()));
var endpointMessageProperty = new MessageProperty("OPC UA endpoint", "endpointId", endpoints);
response.Items.Add(endpointMessageProperty);
string resultString = JsonConvert.SerializeObject(response);
byte[] result = Encoding.UTF8.GetBytes(resultString);
return(Task.FromResult(new MethodResponse(result, (int)HttpStatusCode.OK)));
}
/// <summary>
/// Handle method call to get list of configured nodes on a specific endpoint.
/// </summary>
public virtual Task <MethodResponse> HandleGetConfiguredEventsOnEndpointMethodAsync(MethodRequest methodRequest, object userContext)
{
const string logPrefix = "HandleGetConfiguredEventsOnEndpointMethodAsync:";
Guid endpointId = Guid.Empty;
string endpointName = null;
string endpointUrl = null;
GetConfiguredNodesOnEndpointMethodRequestModel getConfiguredEventNodesOnEndpointMethodRequest = null;
uint nodeConfigVersion = 0;
GetConfiguredEventNodesOnEndpointMethodResponseModel getConfiguredEventNodesOnEndpointMethodResponse = new GetConfiguredEventNodesOnEndpointMethodResponseModel();
uint actualNodeCount = 0;
uint availableEventNodeCount = 0;
var opcEvents = new List <OpcEventOnEndpointModel>();
uint startIndex = 0;
var statusCode = HttpStatusCode.OK;
var statusResponse = new List <string>();
string statusMessage;
try
{
Logger.Debug($"{logPrefix} called");
getConfiguredEventNodesOnEndpointMethodRequest = JsonConvert.DeserializeObject <GetConfiguredNodesOnEndpointMethodRequestModel>(methodRequest.DataAsJson);
if (getConfiguredEventNodesOnEndpointMethodRequest.EndpointId == null)
{
statusMessage = $"New endpoint: there are no event nodes configured";
Logger.Information($"{logPrefix} {statusMessage}");
statusResponse.Add(statusMessage);
statusCode = HttpStatusCode.NoContent;
}
else
{
endpointId = new Guid(getConfiguredEventNodesOnEndpointMethodRequest.EndpointId);
}
}
catch (FormatException e)
{
statusMessage = $"Exception ({e.Message}) while parsing EndpointId '{getConfiguredEventNodesOnEndpointMethodRequest?.EndpointId}'";
Logger.Error(e, $"{logPrefix} {statusMessage}");
statusResponse.Add(statusMessage);
statusCode = HttpStatusCode.InternalServerError;
}
catch (Exception e)
{
statusMessage = $"Exception ({e.Message}) while deserializing message payload";
Logger.Error(e, $"{logPrefix} Exception");
statusResponse.Add(statusMessage);
statusCode = HttpStatusCode.InternalServerError;
}
if (statusCode == HttpStatusCode.OK)
{
// get the list of published nodes for the endpoint
List <PublisherConfigurationFileEntryModel> configFileEntries = NodeConfiguration.GetPublisherConfigurationFileEntries(endpointId, false, out nodeConfigVersion);
// return if there are no nodes configured for this endpoint
if (configFileEntries.Count == 0)
{
statusMessage = $"There are no event nodes configured for endpoint '{endpointId.ToString()}'";
Logger.Information($"{logPrefix} {statusMessage}");
statusResponse.Add(statusMessage);
statusCode = HttpStatusCode.NoContent;
}
else
{
endpointName = configFileEntries.First().EndpointName;
endpointUrl = configFileEntries.First().EndpointUrl.ToString();
foreach (var configFileEntry in configFileEntries)
{
if (configFileEntry?.OpcEvents != null)
{
opcEvents.AddRange(configFileEntry.OpcEvents);
}
}
uint configuredEventNodesOnEndpointCount = (uint)opcEvents.Count();
// validate version
startIndex = 0;
if (getConfiguredEventNodesOnEndpointMethodRequest?.ContinuationToken != null)
{
uint requestedNodeConfigVersion = (uint)(getConfiguredEventNodesOnEndpointMethodRequest.ContinuationToken >> 32);
if (nodeConfigVersion != requestedNodeConfigVersion)
{
statusMessage = $"The event node configuration has changed between calls. Requested version: {requestedNodeConfigVersion:X8}, Current version '{nodeConfigVersion:X8}'!";
Logger.Information($"{logPrefix} {statusMessage}");
statusResponse.Add(statusMessage);
statusCode = HttpStatusCode.Gone;
}
startIndex = (uint)(getConfiguredEventNodesOnEndpointMethodRequest.ContinuationToken & 0x0FFFFFFFFL);
}
if (statusCode == HttpStatusCode.OK)
{
// set count
var requestedEventNodeCount = configuredEventNodesOnEndpointCount - startIndex;
availableEventNodeCount = configuredEventNodesOnEndpointCount - startIndex;
actualNodeCount = Math.Min(requestedEventNodeCount, availableEventNodeCount);
opcEvents.ForEach(x => x.OpcPublisherPublishState = OpcPublisherPublishState.Published);
// generate response
while (true)
{
string publishedNodesString = JsonConvert.SerializeObject(opcEvents.GetRange((int)startIndex, (int)actualNodeCount));
var publishedNodesByteArray = Encoding.UTF8.GetBytes(publishedNodesString);
if (publishedNodesByteArray.Length > MaxResponsePayloadLength)
{
actualNodeCount /= 2;
continue;
}
break;
}
}
}
}
// build response
string resultString;
if (statusCode == HttpStatusCode.OK)
{
getConfiguredEventNodesOnEndpointMethodResponse.ContinuationToken = null;
if (actualNodeCount < availableEventNodeCount)
{
getConfiguredEventNodesOnEndpointMethodResponse.ContinuationToken = (ulong)nodeConfigVersion << 32 | actualNodeCount + startIndex;
}
// Todo: check if EventConfigurationModel mit endpointName = endpointUrl = null ok?
getConfiguredEventNodesOnEndpointMethodResponse.EventNodes
.AddRange(opcEvents
.GetRange((int)startIndex, (int)actualNodeCount)
.Select(n =>
new OpcEventOnEndpointModel(
new EventConfigurationModel(
endpointId.ToString(),
endpointName,
endpointUrl,
null,
OpcAuthenticationMode.Anonymous,
null,
n.Id,
n.DisplayName,
n.SelectClauses,
n.WhereClause,
n.IotCentralEventPublishMode
),
OpcPublisherPublishState.Published
)
)
);
getConfiguredEventNodesOnEndpointMethodResponse.EndpointId = endpointId.ToString();
resultString = JsonConvert.SerializeObject(getConfiguredEventNodesOnEndpointMethodResponse);
Logger.Information($"{logPrefix} Success returning {actualNodeCount} event node(s) of {availableEventNodeCount} (start: {startIndex}) (node config version: {nodeConfigVersion:X8})!");
}
else if (statusCode == HttpStatusCode.NoContent)
{
resultString = JsonConvert.SerializeObject(getConfiguredEventNodesOnEndpointMethodResponse);
Logger.Information($"{logPrefix} Success returning 0 event nodes.");
}
else
{
resultString = JsonConvert.SerializeObject(statusResponse);
}
byte[] result = Encoding.UTF8.GetBytes(resultString);
if (result.Length > MaxResponsePayloadLength)
{
Logger.Error($"{logPrefix} Response size is too long");
Array.Resize(ref result, result.Length > MaxResponsePayloadLength ? MaxResponsePayloadLength : result.Length);
}
MethodResponse methodResponse = new MethodResponse(result, (int)statusCode);
Logger.Information($"{logPrefix} completed with result {statusCode.ToString()}");
return(Task.FromResult(methodResponse));
}