[elbe-devel] [RFC PATCH 4/5] initvmaction: Cleanup actions registration

[Olivier Dion]

This follows the style in finetuning using decorator.

Signed-off-by: Olivier Dion <dion at linutronix.de>
---
 elbepack/initvmaction.py | 41 +++++++++++++---------------------------
 1 file changed, 13 insertions(+), 28 deletions(-)

diff --git a/elbepack/initvmaction.py b/elbepack/initvmaction.py
index f8572402..c6c1943f 100644
--- a/elbepack/initvmaction.py
+++ b/elbepack/initvmaction.py
@@ -52,8 +52,12 @@ class InitVMAction(object):
     actiondict = {}
 
     @classmethod
-    def register(cls, action):
-        cls.actiondict[action.tag] = action
+    def register(cls, tag):
+        def _register(action):
+            action.tag = tag
+            cls.actiondict[action.tag] = action
+            return action
+        return _register
 
     @classmethod
     def print_actions(cls):
@@ -119,10 +123,9 @@ class InitVMAction(object):
         return self.initvm.info()[0]
 
 
+ at InitVMAction.register('start')
 class StartAction(InitVMAction):
 
-    tag = 'start'
-
     def __init__(self, node):
         InitVMAction.__init__(self, node)
 
@@ -143,13 +146,9 @@ class StartAction(InitVMAction):
             print("*")
 
 
-InitVMAction.register(StartAction)
-
-
+ at InitVMAction.register('ensure')
 class EnsureAction(InitVMAction):
 
-    tag = 'ensure'
-
     def __init__(self, node):
         InitVMAction.__init__(self, node)
 
@@ -163,13 +162,10 @@ class EnsureAction(InitVMAction):
             sys.exit(20)
 
 
-InitVMAction.register(EnsureAction)
-
 
+ at InitVMAction.register('stop')
 class StopAction(InitVMAction):
 
-    tag = 'stop'
-
     def __init__(self, node):
         InitVMAction.__init__(self, node)
 
@@ -195,13 +191,9 @@ class StopAction(InitVMAction):
                 time.sleep(1)
 
 
-InitVMAction.register(StopAction)
-
-
+ at InitVMAction.register('attach')
 class AttachAction(InitVMAction):
 
-    tag = 'attach'
-
     def __init__(self, node):
         InitVMAction.__init__(self, node)
 
@@ -214,8 +206,6 @@ class AttachAction(InitVMAction):
         system('virsh --connect qemu:///system console %s' % cfg['initvm_domain'])
 
 
-InitVMAction.register(AttachAction)
-
 
 def submit_and_dl_result(xmlfile, cdrom, opt):
 
@@ -452,9 +442,9 @@ def extract_cdrom(cdrom):
 
     return tmp
 
-class CreateAction(InitVMAction):
 
-    tag = 'create'
+ at InitVMAction.register('create')
+class CreateAction(InitVMAction):
 
     def __init__(self, node):
         InitVMAction.__init__(self, node, initvmNeeded=False)
@@ -601,13 +591,9 @@ class CreateAction(InitVMAction):
             submit_and_dl_result(xmlfile, cdrom, opt)
 
 
-InitVMAction.register(CreateAction)
-
-
+ at InitVMAction.register('submit')
 class SubmitAction(InitVMAction):
 
-    tag = 'submit'
-
     def __init__(self, node):
         InitVMAction.__init__(self, node)
 
@@ -642,4 +628,3 @@ class SubmitAction(InitVMAction):
 
             submit_and_dl_result(xmlfile, cdrom, opt)
 
-InitVMAction.register(SubmitAction)
-- 
2.26.2