public async Task <ActionResult <IEnumerable <string> > > GetPiSystemSubscriptionList(string resourceUriString)
{
try
{
if (string.IsNullOrEmpty(resourceUriString))
{
throw new ArgumentNullException("resourceUriString");
}
IPiSystem pisystem = graphManager.GetPiSystem(resourceUriString);
if (pisystem == null)
{
logger?.LogWarning($"Pi-system '{resourceUriString}' is null.");
}
else
{
logger?.LogInformation($"Returned pi-system '{resourceUriString}'.");
}
IEnumerable <string> list = await pisystem.GetSubscriptionListAsync();
return(StatusCode(200, list));
}
catch (Exception ex)
{
logger?.LogError(ex, $"Error getting subscriptions from pi-system.");
return(StatusCode(500, ex.Message));
}
}
/// <summary>
/// Gets a list of subscription URIs subscribed to the resource.
/// </summary>
/// <param name="resourceUriString">Unique URI that identifies the resource.</param>
/// <returns>Array of subscription URIs subscribed to the resource.</returns>
public async Task <IEnumerable <string> > GetPiSystemSubscriptionListAsync(string resourceUriString)
{
IPiSystem resource = GetPiSystem(resourceUriString);
return(await resource.GetSubscriptionListAsync());
}