"""
-#
-# Copyright 2016 RIFT.IO Inc
+#
+# Copyright 2016-2017 RIFT.IO Inc
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
from gi.repository import (RwDts as rwdts, ProtobufC)
import rift.tasklets
+from rift.mano.utils.project import (
+ get_add_delete_update_cfgs,
+ )
from ..core import DtsHandler
"""A common class for all subscribers.
"""
@classmethod
- def from_tasklet(cls, tasklet, callback=None):
+ def from_project(cls, proj, callback=None):
"""Convenience method to build the object from tasklet
Args:
- tasklet (rift.tasklets.Tasklet): Tasklet
+ proj (rift.mano.utils.project.ManoProject): Project
callback (None, optional): Callable, which will be invoked on
subscriber changes.
msg: The Gi Object msg from DTS
action(rwdts.QueryAction): Action type
"""
- return cls(tasklet.log, tasklet.dts, tasklet.loop, callback=callback)
+ return cls(proj.log, proj.dts, proj.loop, proj, callback=callback)
- def __init__(self, log, dts, loop, callback=None):
- super().__init__(log, dts, loop)
+ def __init__(self, log, dts, loop, project, callback=None):
+ super().__init__(log, dts, loop, project)
self.callback = callback
def get_reg_flags(self):
"""Default set of REG flags, can be over-ridden by sub classes.
-
+
Returns:
Set of rwdts.Flag types.
"""
Opdata subscriber can be created in one step by subclassing and implementing
the MANDATORY get_xpath() method
-
+
"""
@abc.abstractmethod
def get_xpath(self):
def register(self):
"""Triggers the registration
"""
+
+ if self.reg:
+ self._log.warning("RPC already registered for project {}".
+ format(self._project.name))
+ return
+
xacts = {}
def on_commit(xact_info):
)
self.reg = yield from self.dts.register(
- xpath=self.get_xpath(),
+ xpath=self.project.add_project(self.get_xpath()),
flags=self.get_reg_flags(),
handler=handler)
assert self.reg is not None
- def deregister(self):
- self.reg.deregister()
-
class AbstractConfigSubscriber(SubscriberDtsHandler):
"""Abstract class that simplifies the process of creating subscribers
Config subscriber can be created in one step by subclassing and implementing
the MANDATORY get_xpath() method
-
+
"""
KEY = "msgs"
def key_name(self):
pass
- def get_add_delete_update_cfgs(self, dts_member_reg, xact, key_name):
- # Unforunately, it is currently difficult to figure out what has exactly
- # changed in this xact without Pbdelta support (RIFT-4916)
- # As a workaround, we can fetch the pre and post xact elements and
- # perform a comparison to figure out adds/deletes/updates
- xact_cfgs = list(dts_member_reg.get_xact_elements(xact))
- curr_cfgs = list(dts_member_reg.elements)
-
- xact_key_map = {getattr(cfg, key_name): cfg for cfg in xact_cfgs}
- curr_key_map = {getattr(cfg, key_name): cfg for cfg in curr_cfgs}
-
- # Find Adds
- added_keys = set(xact_key_map) - set(curr_key_map)
- added_cfgs = [xact_key_map[key] for key in added_keys]
-
- # Find Deletes
- deleted_keys = set(curr_key_map) - set(xact_key_map)
- deleted_cfgs = [curr_key_map[key] for key in deleted_keys]
-
- # Find Updates
- updated_keys = set(curr_key_map) & set(xact_key_map)
- updated_cfgs = [xact_key_map[key] for key in updated_keys if xact_key_map[key] != curr_key_map[key]]
-
- return added_cfgs, deleted_cfgs, updated_cfgs
-
@asyncio.coroutine
def register(self):
""" Register for VNFD configuration"""
+ if self.reg:
+ self._log.warning("RPC already registered for project {}".
+ format(self._project.name))
+ return
+
def on_apply(dts, acg, xact, action, scratch):
"""Apply the configuration"""
is_recovery = xact.xact is None and action == rwdts.AppconfAction.INSTALL
- add_cfgs, delete_cfgs, update_cfgs = self.get_add_delete_update_cfgs(
+ add_cfgs, delete_cfgs, update_cfgs = get_add_delete_update_cfgs(
dts_member_reg=self.reg,
xact=xact,
key_name=self.key_name())
acg_hdl = rift.tasklets.AppConfGroup.Handler(on_apply=on_apply)
with self.dts.appconf_group_create(handler=acg_hdl) as acg:
self.reg = acg.register(
- xpath=self.get_xpath(),
+ xpath=self.project.add_project(self.get_xpath()),
flags=self.get_reg_flags(),
on_prepare=on_prepare)
-
- def deregister(self):
- self.reg.deregister()