def remove(self, userService: UserService) -> UserService:
"""
Removes a uService element
"""
with transaction.atomic():
userService = UserService.objects.select_for_update().get(
id=userService.id)
logger.debug('Removing userService %a', userService)
if userService.isUsable() is False and State.isRemovable(
userService.state) is False:
raise OperationException(
_('Can\'t remove a non active element'))
userService.setState(State.REMOVING)
logger.debug("***** The state now is %s *****",
State.toString(userService.state))
userService.setInUse(
False
) # For accounting, ensure that it is not in use right now
userService.save()
userServiceInstance = userService.getInstance()
state = userServiceInstance.destroy()
# Data will be serialized on makeUnique process
UserServiceOpChecker.makeUnique(userService, userServiceInstance,
state)
return userService
def removeOrCancel(self, userService: UserService):
if userService.isUsable() or State.isRemovable(userService.state):
return self.remove(userService)
if userService.isPreparing():
return self.cancel(userService)
raise OperationException(_('Can\'t remove nor cancel {} cause its state don\'t allow it').format(userService.name))
def moveToLevel(self, cache: UserService, cacheLevel: int) -> None:
"""
Moves a cache element from one level to another
@return: cache element
"""
cache.refresh_from_db()
logger.debug('Moving cache %s to level %s', cache, cacheLevel)
cacheInstance = cache.getInstance()
state = cacheInstance.moveToCache(cacheLevel)
cache.cache_level = cacheLevel
cache.save(update_fields=['cache_level'])
logger.debug('Service State: %a %s %s', State.toString(state), State.toString(cache.state), State.toString(cache.os_state))
if State.isRuning(state) and cache.isUsable():
cache.setState(State.PREPARING)
# Data will be serialized on makeUnique process
UserServiceOpChecker.makeUnique(cache, cacheInstance, state)
