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Amend the notification structure to better bind attributes to nodes

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This commit is contained in:
Jarrod Johnson 2014-04-01 14:10:30 -04:00
parent fda2dd08d1
commit 43c6ed5c93
1 changed files with 26 additions and 16 deletions
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42
confluent/config/configmanager.py
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@ -599,7 +599,7 @@ class ConfigManager(object):
return
for attrib in groupcfg.iterkeys():
self._do_inheritance(nodecfg, attrib, node)
self._notif_attribwatchers([attrib], [node])
self._notif_attribwatchers({node:{attrib:1}})
def _node_removed_from_group(self, node, group):
try:
@ -616,7 +616,7 @@ class ConfigManager(object):
_mark_dirtykey('nodes', node, self.tenant)
del nodecfg[attrib] # remove invalid inherited data
self._do_inheritance(nodecfg, attrib, node)
self._notif_attribwatchers([attrib], [node])
self._notif_attribwatchers({node:{attrib:1}})
except KeyError: # inheritedfrom not set, move on
pass
@ -643,7 +643,6 @@ class ConfigManager(object):
copy.deepcopy(self._cfgstore['groups'][group][attrib])
nodecfg[attrib]['inheritedfrom'] = group
self._refresh_nodecfg(nodecfg, attrib, nodename)
self._notif_attribwatchers([attrib], [nodename])
return
if srcgroup is not None and group == srcgroup:
# break out
@ -728,7 +727,7 @@ class ConfigManager(object):
for node in cfgobj['nodes']:
nodecfg = self._cfgstore['nodes'][node]
self._do_inheritance(nodecfg, attr, node, srcgroup=group)
self._notif_attribwatchers([attr], [node])
self._notif_attribwatchers({node:{attr:1}})
self._bg_sync_to_file()
def _refresh_nodecfg(self, cfgobj, attrname, node):
@ -744,30 +743,32 @@ class ConfigManager(object):
exprmgr = _ExpressionFormat(cfgobj, node)
self._recalculate_expressions(cfgobj, formatter=exprmgr, node=node)
def _notif_attribwatchers(self, attrnames, nodes):
def _notif_attribwatchers(self, nodeattrs):
if self.tenant not in self._attribwatchers:
return
notifdata = {}
attribwatchers = self._attribwatchers[self.tenant]
for node in nodes:
for node in nodeattrs.iterkeys():
if node not in attribwatchers:
continue
attribwatchers = attribwatchers[node]
for attrname in attrnames:
for attrname in nodeattrs[node].iterkeys():
if attrname not in attribwatchers:
continue
for notifierid in attribwatchers[attrname].iterkeys():
if notifierid not in notifdata:
if notifierid in notifdata:
if node in notifdata[notifierid]:
notifdata[notifierid]['nodeattrs'][node].append(attrname)
else:
notifdata[notifierid]['nodeattrs'][node] = [attrname]
else:
notifdata[notifierid] = {
'nodes': [ node ],
'attributes': [ attrname ],
'nodeattrs': { node: [attrname] },
'callback': attribwatchers[attrname][notifierid]
}
for watcher in notifdata.itervalues():
nodes = watcher['nodes']
attributes = watcher['attributes']
callback = watcher['callback']
callback(nodes=nodes, attributes=attributes, configmanager=self)
callback(nodeattribs=watcher['nodeattrs'], configmanager=self)
def del_nodes(self, nodes):
if self.tenant in self._nodecollwatchers:
@ -807,7 +808,7 @@ class ConfigManager(object):
_mark_dirtykey('nodes', node, self.tenant)
del nodek[attrib]
self._do_inheritance(nodek, attrib, node)
self._notif_attribwatchers([attrib], [node])
self._notif_attribwatchers({node:{attrib:1}})
if ('_expressionkeys' in nodek and
attrib in nodek['_expressionkeys']):
recalcexpressions = True
@ -823,6 +824,7 @@ class ConfigManager(object):
# pickle the arguments and fire them off in eventlet
# flows to peers, all should have the same result
newnodes = []
changeset = {}
for node in attribmap.iterkeys():
node = node.encode('utf-8')
_mark_dirtykey('nodes', node, self.tenant)
@ -861,11 +863,13 @@ class ConfigManager(object):
formatter=exprmgr)
# if any code is watching these attributes, notify
# them of the change
self._notif_attribwatchers([attrname], [node])
self._addchange(changeset, node, attrname)
if recalcexpressions:
if exprmgr is None:
exprmgr = _ExpressionFormat(cfgobj, node)
self._recalculate_expressions(cfgobj, formatter=exprmgr, node=node)
if changeset:
self._notif_attribwatchers(changeset)
if newnodes:
if self.tenant in self._nodecollwatchers:
nodecollwatchers = self._nodecollwatchers[self.tenant]
@ -874,6 +878,12 @@ class ConfigManager(object):
self._bg_sync_to_file()
#TODO: wait for synchronization to suceed/fail??)
def _addchange(self, changeset, node, attrname):
if node not in changeset:
changeset[node] = { attrname: 1 }
else:
changeset[node][attrname] = 1
@classmethod
def _read_from_path(cls):
global _cfgstore
@ -955,7 +965,7 @@ class ConfigManager(object):
if 'expression' in cfgobj[key]:
cfgobj[key] = _decode_attribute(key, cfgobj,
formatter=formatter)
self._notif_attribwatchers([key], [node])
self._notif_attribwatchers({node:{key:1}})
elif ('cryptvalue' not in cfgobj[key] and
'value' not in cfgobj[key]):
# recurse for nested structures, with some hint tha