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From "Ronelle Landy (Closed) (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (DTACLOUD-89) deltacloud-client should throw an exception if an action fails
Date Thu, 26 Jan 2012 19:09:40 GMT

     [ https://issues.apache.org/jira/browse/DTACLOUD-89?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ronelle Landy closed DTACLOUD-89.
---------------------------------

    Resolution: Not A Problem

Closing this JIRA issue out. Deltacloud does report when actions are not supported on an instance
in a particular state: 

Example: executing 'start' on a RUNNING instance

<error status='405' url='/api/instances/bf388696-55a4-4fb2-b2d8-170416651a28/start?format=xml'>
  <message>
    Requested method not allowed
  </message>
  <method>
    POST
  </method>
</error>

and executing GET /api/instance/:id will show the supported actions for the instance in its
current state:

 <actions>
    <link href='http://server:3001/api/instances/bf388696-55a4-4fb2-b2d8-170416651a28/stop'
method='post' rel='stop' />
    <link href='http://server:3001/api/images;instance_id=bf388696-55a4-4fb2-b2d8-170416651a28'
method='post' rel='create_image' />
  </actions>

so comments are verified.

Will add testing for client responses to backend errors.
 
                
> deltacloud-client should throw an exception if an action fails
> --------------------------------------------------------------
>
>                 Key: DTACLOUD-89
>                 URL: https://issues.apache.org/jira/browse/DTACLOUD-89
>             Project: DeltaCloud
>          Issue Type: Bug
>          Components: Client (Ruby)
>         Environment: Fedora-15, rubygem-deltacloud-client-0.4.0-3.fc15.noarch
>            Reporter: Chris Lalancette
>            Assignee: Michal Fojtik
>
> Aeolus was running the following code:
>       dcloud_instance.send(action)
> (where action == :start!)
> However, the RHEV-M datacenter that this was being run against failed to start the instance.
 Not only did deltacloud-core fail to return a usable error message (https://issues.apache.org/jira/browse/DTACLOUD-88),
but the deltacloud client also did not seem to throw an exception for this failure.  If the
call outright fails, the ruby-ish thing to do is probably to raise an exception and let the
user deal with it.

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