private void ConstructPresubscriptionArray(string id)
{
// get the union of all the local subscriptions
var presubs = new HashSet <ResourceValuesFilter>();
ResourceValueObservers.ForEach(s =>
{
presubs = presubs.Union(s.ResourceValueSubscriptions).ToHashSet();
});
AllLocalSubscriptions = presubs;
if (ConnectApi != null)
{
// get the union of the local subscriptions and the online subscriptions
var mappedSubs = presubs.Select(p => ResourceValuesFilter.Map(p)).ToArray();
var serverSubs = ConnectApi.ListPresubscriptions();
var merged = MergeLocalAndServerLists(mappedSubs, serverSubs);
ConnectApi.UpdatePresubscriptions(merged);
if (Immediacy == FirstValueImmediacy.OnValueUpdate)
{
var connectedDevices = ConnectApi.ListConnectedDevices();
ResourceValueObservers.Where(v => v.Id == id).ToList().ForEach(v => v.ResourceValueSubscriptions.ToList().ForEach(s =>
{
// add resource subscriptions for all matching resources on connected devices
connectedDevices
.Where(d => s.DeviceId.MatchWithWildcard(d.Id))
.ToList()
.ForEach(m =>
{
m.ListResources()
.ToList()
.ForEach(async r =>
{
if (!s.ResourcePaths.Any() || s.ResourcePaths.Any(p => p.MatchWithWildcard(r.Path)))
{
await ConnectApi.AddResourceSubscriptionAsync(r.DeviceId, r.Path);
}
});
});
}));
}
}
}
/// <summary>
/// Subscribe to this resource.
/// </summary>
/// <returns>Async consumer with string</returns>
public async Task <Resource> Subscribe()
{
return(await api.AddResourceSubscriptionAsync(DeviceId, Path));
}
