Class: Fission::Action::Snapshot::Lister

Inherits:
Object
  • Object
show all
Defined in:
lib/fission/action/snapshot/lister.rb

Instance Method Summary collapse

Constructor Details

#initialize(vm) ⇒ Lister

Internal: Creates a new SnapshotLister object. This accepts a VM object.

vm - An instance of VM

Examples:

Fission::Action::SnapshotLister.new @my_vm

Returns a new SnapshotLister object



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# File 'lib/fission/action/snapshot/lister.rb', line 17

def initialize(vm)
  @vm = vm
end

Instance Method Details

#snapshots ⇒ Object

Internal: List the snapshots for a VM.

Examples

@lister.snapshots.data
# => ['snap 1', 'snap 2']

Returns a Response with the result. If successful, the Repsonse’s data attribute will be an Array of the snapshot names (String). If there is an error, an unsuccessful Response will be returned.



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# File 'lib/fission/action/snapshot/lister.rb', line 32

def snapshots
  unless @vm.exists?
    return Response.new :code => 1, :message => 'VM does not exist'
  end

  conf_file_response = @vm.conf_file
  return conf_file_response unless conf_file_response.successful?

  command = "#{vmrun_cmd} listSnapshots "
  command << "'#{conf_file_response.data}' 2>&1"

  command_exec = Fission::Action::ShellExecutor.new command
  result = command_exec.execute

  response = Response.new :code => result['process_status'].exitstatus

  if response.successful?
    response.data = parse_snapshot_names_from_output result['output']
  else
    response.message = result['output']
  end

  response
end