thanks for clarifying. indeed today, the canDoActionMessages is simply a collection of strings, each of which is either a message, a message with variable placeholder(s) or a variable value; if a few messages contain an identically-named variable placeholder (e.g. '${HostName}'), and you want to replace each one of these placeholders with a different value (e.g. 'host-A', 'host-B', etc.), it is impossible to do AFAIK. a possible improvement to the current mechanism in order to support what you need is to define the canDoActionMessage field to be a collection of string collections (rather than a collection of strings); and each string collection will actually represent a single 'line' in the can-do-action failure message, by containing the 'base' message (e.g. "Host '${HostName}' failed constraint memory") and its matching variable value(s) (e.g. '$HostName host-A'). ---- Regards, Einav ----- Original Message -----
From: "Martin Sivak" <msivak@redhat.com> To: "Einav Cohen" <ecohen@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Wednesday, October 16, 2013 11:46:42 AM Subject: Re: [Engine-devel] Localization of canDoAction error messages
Hi Einav,
I know about this procedure, but if you check closely what I am doing, I need to print a list of messages at once where each has a different content.
Something like this (again the strings are just an illustration):
------------- Error ---------------------- The VM net-A could not be started because there was no fitting host available.
Host host-A failed constraint memory Host host-B failed constraint cpu load Host host-C failed constraint memory ------------------------------------------
I am pretty sure the replacing we have in VdcBllMessages does not support this as it cannot assign two or more different values to the same variable.
-- Martin Sivák msivak@redhat.com Red Hat Czech RHEV-M SLA / Brno, CZ
----- Original Message -----
Hi Martin, please follow instructions in [1] for adding new messages to the system. [you should not add the English message to the canDoActionMessages collection - you should add a key from the AppErrors resource - look for other examples in the code that add items to a command's canDoActionMessages field]
---- Thanks, Einav
[1] http://www.ovirt.org/Engine_Adding_Messages
----- Original Message -----
From: "Martin Sivak" <msivak@redhat.com> To: "engine-devel" <engine-devel@ovirt.org> Sent: Wednesday, October 16, 2013 11:22:02 AM Subject: [Engine-devel] Localization of canDoAction error messages
Hi,
I am trying to improve the messages the user gets when scheduling fails. But I have found an interesting issue regarding localization. The texts here are simplified, but should demonstrate what I am trying to do.
So here is the flow:
- RunVmCommand's canDoAction fails because there is no host that fits the constraints - For each host I add a message to getReturnValue().getCanDoActionMessages() in the format of "Host XYZ failed constraint ABCD". - I log the same message to the log
I expect the log to contain the strings in english and a localized version to be shown in the error popup that will be displayed by the webadmin.
And the question is.. how do I localize this? I looked at AppErrors and AppMessages, but there is not way of using them from the backend side.
Any ideas?
-- Martin Sivák msivak@redhat.com Red Hat Czech RHEV-M SLA / Brno, CZ
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