private static string GetRelationshipFromDigitalTwinIds(DigitalTwinsClient client, string sourceTwinId, string targetTwinId)
{
string relationshipId = "";
string sourcedtmi = "";
string targetdtmi = "";
//obtain the dtmi for the target
string q = string.Format("SELECT v.$metadata.$model FROM DIGITALTWINS v WHERE $dtId = '{0}' AND IS_PRIMITIVE(v.$metadata.$model)", targetTwinId);
if (q.Length > 0)
{
Pageable <string> result = client.Query(q);
foreach (string s in result)
{
using (JsonDocument jdoc = JsonDocument.Parse(s))
{
JsonElement ele = jdoc.RootElement;
targetdtmi = ele.GetProperty("$model").ToString();
}
}
}
//obtain the dtmi for the source
q = string.Format("SELECT v.$metadata.$model FROM DIGITALTWINS v WHERE $dtId = '{0}' AND IS_PRIMITIVE(v.$metadata.$model)", sourceTwinId);
if ((q.Length > 0) && (targetdtmi.Length > 0))
{
Pageable <string> result = client.Query(q);
foreach (string s in result)
{
using (JsonDocument jdoc = JsonDocument.Parse(s))
{
JsonElement ele = jdoc.RootElement;
sourcedtmi = ele.GetProperty("$model").ToString();
}
}
dtdlInterfaceModel targetDTDL = DigitalTwinModelMethods.GetDTDLModel(client, sourcedtmi);
if (targetDTDL != null)
{
foreach (dtdlRelationshipModel r in targetDTDL.relationships)
{
if (r.target == targetdtmi)
{
relationshipId = r.name;
Console.WriteLine("Relationship created: {0}", JsonSerializer.Serialize <dtdlRelationshipModel>(r));
break;
}
}
}
}
return(relationshipId);
}
/// <summary>
/// Queries for all digital twins using <see cref="DigitalTwinsClient.Query{T}(string, CancellationToken)"/>.
/// </summary>
/// <param name="cancellationToken">The token used to signal cancellation request.</param>
public override void Run(CancellationToken cancellationToken)
{
Pageable <BasicDigitalTwin> result = _digitalTwinsClient
.Query <BasicDigitalTwin>($"SELECT * FROM DIGITALTWINS WHERE TestId = '{_testId}'", cancellationToken);
long resultCount = 0;
foreach (BasicDigitalTwin a in result)
{
resultCount++;
}
#if DEBUG
resultCount.Should().Be(_size);
#endif
}
