topic Adding VirtualThing after threadpool is started in ThingWorx Developers

Adding VirtualThing after threadpool is started

FL_10545404 — Fri, 06 Jan 2023 18:12:48 GMT

Hi,

I am creating an application with the .net sdk that will run virtual things in a process. But I would also like to connect some virtual thing at any moment in the process.

Example: I start my application with thing1 and thing2. Then a few hours later I want to add thing3.

How would I be able to do so? Is it possible?

Regards,

François Lévesque

Re: Adding VirtualThing after threadpool is started

PaiChung — Mon, 09 Jan 2023 15:05:40 GMT

You have a full set of services available that you could invoke after connection. So it is certainly possible to do things like auto create based on a trigger, or 'self-registration' there have been several threads on this, quite a long time ago, hopefully you can find it using a search.

Re: Adding VirtualThing after threadpool is started

FL_10545404 — Mon, 09 Jan 2023 21:07:03 GMT

I've been searching all day for a post that would give me what I am looking for and I found nothing. Would it be possible to point me in the right direction please. Since I am new to the sdk and ThingWorx.

Regards

Re: Adding VirtualThing after threadpool is started

PaiChung — Wed, 11 Jan 2023 13:14:27 GMT

Hope these articles, have some content that can help you along.

https://community.ptc.com/t5/ThingWorx-Developers/sample-code-for-automatic-VirtualThing-discovery-and-binding/m-p/522152

https://community.ptc.com/t5/ThingWorx-Developers/How-to-create-Things-Properties-via-Rest-API/m-p/504978

https://community.ptc.com/t5/ThingWorx-Developers/Create-missing-Things-via-404-s/m-p/771301

https://community.ptc.com/t5/ThingWorx-Developers/HowTo-create-a-RemoteThing-and-simulate-a-device/m-p/512874

https://community.ptc.com/t5/ThingWorx-Developers/how-to-check-if-a-remotething-is-bound/m-p/529896

Re: Adding VirtualThing after threadpool is started

FL_10545404 — Wed, 11 Jan 2023 14:50:04 GMT

So I've read the content and I think I did not explain my self clearly. I will try to do so.

I do not need to create things with the sdk.

I need to bindThings after I started a process with some Things in it.

What I've tried to do so is create a Thing that will manage the insertion of other Things.

But when I bind things they do not connect in ThingWorx web platform.

Can I bind things after I have started my process and what do I need to do?

Regards,

Frank

Re: Adding VirtualThing after threadpool is started

PaiChung — Wed, 11 Jan 2023 15:02:27 GMT

When you say bind, you are using devices and RemoteThings?

I think your explanation lacks a lot of context unfortunately.

But I would say that if something needs to be bound, as something is in progress, and that process needs the bound items,

you will likely run into a lot of latency/timing issues.

You probably want to carefully outline each step that is being taken and then create some sort of asynchronous approach that allows it to work.

Re: Adding VirtualThing after threadpool is started

nmutter — Thu, 12 Jan 2023 12:10:51 GMT

I think the question is related to the creation of a new instance - in context of the SteamSensor Example - of a new SteamThing in the already running application.

https://support.ptc.com/help/thingworx/edge_sdk_dotnet/en/#page/dotnet_sdk/c_dotnet_sdk_reference_virtualthing_class.html#wwID0E3BIM

SteamSensorClient client = createClient(host, appKey); /* (done in createClient call) // Create two Virtual Things SteamThing sensor1 = new SteamThing("SteamSensor1", "1st Floor Steam Sensor", null, client); SteamThing sensor2 = new SteamThing("SteamSensor2", "2nd Floor Steam Sensor", "SN0002", client); // Bind the Virtual Things client.bindThing(sensor1); client.bindThing(sensor2); */ // Wait for the SteamSensorClient to connect, then process its associated things. // As long as the client has not been shutdown, continue while (!client.isShutdown()) { // Only process the Virtual Things if the client is connected if (client.isConnected()) { ThreadPool.QueueUserWorkItem(client.runClient); } // Question: Can we here also create new SteamThings and bind it to the client? // Suspend processing at the scan rate interval Thread.Sleep(scanRate); }

I did not yet do it like this. I cannot answer this question.

Re: Adding VirtualThing after threadpool is started

FL_10545404 — Thu, 12 Jan 2023 19:05:39 GMT

Hi,

thanks for this answer it was actually what we were about to try.

The real reason it was not working was because I was assigning Identifiers to my things and those remotethings did not have an identifier.