On Jun 20, 2013, at 14:27 , Itamar Heim <iheim(a)redhat.com> wrote:
> On 06/20/2013 03:13 PM, Tomas Jelinek wrote:
>>
>>
>> ----- Original Message -----
>>> From: "Itamar Heim" <iheim(a)redhat.com>
>>> To: "Christophe Fergeau" <cfergeau(a)redhat.com>
>>> Cc: "Tomas Jelinek" <tjelinek(a)redhat.com>,
"engine-devel" <engine-devel(a)ovirt.org>,
>>> spice-devel(a)lists.freedesktop.org, "Marc-André Lureau"
<mlureau(a)redhat.com>
>>> Sent: Thursday, June 20, 2013 1:09:21 PM
>>> Subject: Re: [Engine-devel] [Spice-devel] SPICE Foreign Menu Using REST
>>>
>>> On 06/20/2013 02:07 PM, Christophe Fergeau wrote:
>>>> Hey Itamar,
>>>>
>>>> On Wed, Jun 19, 2013 at 06:00:47PM +0300, Itamar Heim wrote:
>>>>> On 06/19/2013 04:33 PM, Tomas Jelinek wrote:
>>>>>> Hi all,
>>>>>>
>>>>>> for the non plugin invocation of the console
>>>>>> (
http://www.ovirt.org/Features/Non_plugin_console_invocation)
the
>>>>>> dynamicMenu property is not usable to enrich the SPICE client
menu.
>>>>>>
>>>>>> This feature is about requesting this menu using oVirt's REST
API and
>>>>>> than calling it back once some item from this menu has been
selected.
>>>>>>
>>>>>> The oVirt's feature page with specific details:
>>>>>>
http://www.ovirt.org/Features/Foreign_Menu_Using_REST
>>>>>>
>>>>>> Any comments are more than welcomed.
>>>>>
>>>>> Why are we putting the logic of the menu into the REST API?
>>>>> can't the menu be builded by client based on getting the list of
>>>>> ISO's and current CD?
>>>>
>>>> The client needs a way to get the list of available ISOs in order to
build
>>>> the menu, as well as a way to let the engine know when the user clicked
on
>>>> an ISO in the menu. One way of doing that is to have the menu stuff
exposed
>>>> in the REST API. Another way would be to expose the list of ISOs in the
>>>> REST API (I'd have a slight preference for that I think).
>>>
>>> that's my preference as well, and the REST API should already do that
today:
>>> - get list of ISOs of available in a DC (the one the VM is in)
>>> - ability to change the CD of the VM
>> Well, and what about the stop/suspend VM for example, what we have in the menu
today?
>
> supported as well.
>
>> Also this should be something that the client decide to have or not have?
>
> I think the client should decide on the features relevant to the client.
>
>>
>>>
>>>> Or do you have anything in mind for the client to get the list of ISOs
>>>> available to the engine?
>>>
>>> my preference is to provide the data, not the semantics of the menu.
>> We should clarify something here. There are two possibilities who should be
responsible for deciding
>> what should the foreign menu contain and also what to do if it the item is
selected:
>> 1: the client - e.g. we will not provide any support for the menu in REST because
the client reads what needs
>> and knows how to call the oVirt back
>>
>> 2: the server side - e.g. we will provide in REST side the menu structure with
the description what to do if something is
>> selected
>>
>> Both have some advantages and disadvantages but we need to clarify which way to
go. So, who is the one responsible to decide
>> what is in the foreign menu (now or in the future) and how to react if something
is selected? Client or engine?
>
> my preference is the client will decide this, as there are various clients to the
REST API, and each should decide which features are important for them.
I would agree as long as it is not hardcoded and can be change in some config file
easily. We shouldn't wait for next RHEL release to do a little modification if
possible.
I think "owning" the menu in some form on RHEV-M side has an advantage of
delivery synchronization.
this forces you to maintain backward compatibility in the "Menu API",
the client to handle ignoring new features/items in the menu they don't
support yet, etc.
while the *data* which is the important part is already in the stable,
backward compatible, API.
>
>>
>>> iiuc, we are on the same page.
>>>
>>>>
>>>> Christophe
>>>>
>>>
>>>
>
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