Re: [leshan-dev] help for creating object instances on client

["Foivos ." <jfx666@xxxxxxxxxxx>]

ok, that was helpful indeed but does not do exactly what I am looking for.
With the procedure you described I was able to include a custom object's model (eg. id=6666)
in the objects that the client supports. I am able to see that in the sandbox server page, and send from the server an instance creation request to the client.
What I try to do, is creating an instance of an object (regardless of wether this object is custom or is defined in
"oma-objects-spec.json" . In fact the object with id=3201 which I mentioned on my previous post is not custom but is defined in "oma-objects-spec.json".)
But calling the method:
       ObjectsInitializer.create(0,1,3,3201,6666);
will only make the client support these objects(id's = {0,1,3,3201,6666} ) but will NOT create any instance of them (with the exception of object with id=3 and that's because only this object has properties:
"instancetype": "single" AND   "mandatory": true.)
here I uploaded a picture of the server page which depicts the result:
https://dl.dropboxusercontent.com/u/58535035/leshanProb1.png

what I am looking for, must be a simple method like createInstance(int objectId, int instanceId);

Thanks for your time.
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>
> Message: 1
> Date: Fri, 24 Apr 2015 09:53:39 -0400
> From: "J.F. Schloman" <john.schloman@xxxxxxxxx>
> To: leshan developer discussions <leshan-dev@xxxxxxxxxxx>
> Subject: Re: [leshan-dev] help for creating object instances on client
> initialisation
> Message-ID:
> <CAErtmQSBswqoaVYhg5WCnNn_OHr-xTXnDG58gyG8h0M5824UXg@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset="utf-8"
>
> Hello!
>
> So one thing that is not directly obvious is the leshan's LwM2mModel
> class. This class outlines the objects and resources that (in this case)
> the leshan-client will initialize with ObjectInitializer. It is also used
> by ObjectInitializer.createMandatory() which crawls through the LwM2mModel
> looking for objects with mandatory == true and
> ObjectInitializer.create(...) which crawls the model looking for the
> correct definition (in your case 3201). Using the default constructor of
> ObjectInitializer, it loads only the mandatory objects from the LWM2M
> specification from the oma-objects-spec.json. As object 3201 isn't in
> there neither of the create methods on ObjectInitializer will build it.
>
> In the short-term: as you want to create a LwM2mModel including the L2M2M
> specification and your custom object (3201), you can execute
> ObjectLoader.loadDefault()
> returning a List<ObjectModel>, add those to a Map along with your own
> ObjectModel (for 3201), and create a new LwM2mModel using the
> LwM2mModel(Map<Integer, ObjectModel> objectModels) constructor. Finally
> construct ObjectInitializer with this LwM2mModel.
>
> You can now execute createMandatory() and create(3201) (note: you'll
> probably want to join these lists to pass them into the LeshanClient
> constructor).
>
> In the long-term: it might be worthwhile to simplify the above sequence. I
> could see other devs running into similar issues as yourself. It might be
> more useful to extend ObjectInitializer.setClassForObject() to also take an
> ObjectModel that would then append to the LwM2mModel member. It would
> reduce the number of initialization steps as above in the short-term. And
> Leshan is always looking for contributions! So if you find the time to
> make a branch and come up with improvements, shoot out a PR (
> https://github.com/eclipse/leshan/blob/master/CONTRIBUTING.md)! :)
>
> Hope that was helpful,
>
> -JF
>
> On Thu, Apr 23, 2015 at 9:12 PM, ?????? . <jfx666@xxxxxxxxxxx> wrote:
>
> > hello to everybody. Very exciting for me to join leshan dev community!
> > I've imported leshan on eclipse and ran succesfully the client example.
> >
> > Now I want to create some object instances in client initialisation stage,
> > before registering to server
> > but I have a difficulty finding the way to do that.
> > On the client example the objects initialisation is just:
> >
> > List<ObjectEnabler> enablers = initializer.createMandatory();
> >
> > I try to replace this line of code with something like:
> >
> > List<ObjectEnabler> enablers = initializer.create(3201);
> >
> > but this does not create any instance of object with id=3201.
> >
> > Unfortunately, documentation is almost non existent so
> > any help will be really appreciated.