----- Original Message -----
From: "Itamar Heim" <[email protected]>
To: "Martin Betak" <[email protected]>
Cc: [email protected]
Sent: Thursday, February 7, 2013 1:12:03 PM
Subject: Re: [Engine-devel] engine-config behaviour on -g by alternateKey

On 07/02/2013 12:08, Martin Betak wrote:
> Hi All,
>
> I've been working on the ability to set keyboard layout for VNC server as per 
> each individual VM. Currently the only option is to use engine-config to set 
> the value globally, e.g. engine-config -s VncKeyboardLayout=en-us. After 
> adding this option to database and respective entities there were raised 
> valid concerns about why is this option called VncKeyboardLayout and not just 
> KeyboardLayout as it applies to SPICE equally (note that also VDSM calls this 
> config value as 'keyboardLayout').
> So to achieve consistency I also renamed it in engine-config.properties and 
> set KeyboardLayout.alternateKey=VncKeyboardLayout. This indeed works for 
> setting (engine-config -s VncKeyboardLayout=en-us sets KeyboardLayout and 
> engine-config -g KeyboardLayout works but it is unable to read the value by 
> the alternateKey)
> engine-config -g VncKeyboardLayout fails with "no such entry with default 
> version" in the method EngineConfigLogic.printAllValuesForKey as it is 
> passing the user given key name directly to database which returns zero 
> results. Setter methods such as EngineConfigLogic.persistValue use the entity 
> ConfigKey constructed from the user given key-name which correctly constructs 
> appropriate ConfigKey even when given alternateKey name.
>
> So I wanted to ask whether this is the desired behaviour (set by alternateKey 
> name but get only by the primary) or is this a bug? I have also simple patch 
> that fixes this and enables also getting the config value by alternateKey.
>
> Thank you
> _______________________________________________
> Engine-devel mailing list
> [email protected]
> http://lists.ovirt.org/mailman/listinfo/engine-devel
>

Make sense that if we allow alternate names for backward 
compatibility/etc., -g will work for them as well, so my view is worth 
fixing in the config tool.

but, are you sure it affects spice? i thought spice has its own handling 
for this.



I traced the appropriate setting to VDSM code which builds the libvirt xml 
configuration and it seems that the option VNC/spice is orthogonal to the 
keyboard layout - i.e. you chooose your connection type VNC/spice and then you 
choose your keyboard layout independently - you can see this exact behaviour in 
virt-manager for example in the Display Spice panel. Also the only place where 
ConfigValues.VncKeyboardLayout is used is in VmInfoBuilderBase to set a config 
property called VdsProperties.KeyboardLayout :-)

So should I include the patch for engine-config (very small local change - only 
3 lines) in my current patch http://gerrit.ovirt.org/#/c/11314/ ?

Thanks
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