# Thierry Parmentelat - INRIA
# $Id$
+# $URL$
from types import NoneType
-from PLC.Method import Method
+from PLC.Faults import *
+
from PLC.Auth import Auth
from PLC.Parameter import Parameter, Mixed
-
-from PLC.Faults import *
+from PLC.Method import Method
+from PLC.Accessor import Accessor, AccessorSingleton
from PLC.Nodes import Nodes, Node
from PLC.NodeTags import NodeTags, NodeTag
from PLC.Interfaces import Interfaces, Interface
-from PLC.InterfaceSettings import InterfaceSettings, InterfaceSetting
+from PLC.InterfaceTags import InterfaceTags, InterfaceTag
from PLC.Slices import Slices, Slice
-from PLC.SliceAttributes import SliceAttributes, SliceAttribute
+from PLC.SliceTags import SliceTags, SliceTag
+from PLC.Sites import Sites, Site
+from PLC.SiteTags import SiteTags, SiteTag
+from PLC.Persons import Persons, Person
+from PLC.PersonTags import PersonTags, PersonTag
# this is another story..
#from PLC.Ilinks import Ilink
# known classes : { class -> secondary_key }
taggable_classes = { Node : {'table_class' : Nodes,
'joins_class' : NodeTags, 'join_class' : NodeTag,
- 'value_key': 'tagvalue', 'secondary_key': 'hostname'},
+ 'secondary_key': 'hostname'},
Interface : {'table_class' : Interfaces,
- 'joins_class': InterfaceSettings, 'join_class': InterfaceSetting,
- 'value_key' : 'value' },
+ 'joins_class': InterfaceTags, 'join_class': InterfaceTag,
+ 'secondary_key' : 'ip'},
Slice: {'table_class' : Slices,
- 'joins_class': SliceAttributes, 'join_class': SliceAttribute,
- 'value_key' : 'value', 'secondary_key':'login_base'},
+ 'joins_class': SliceTags, 'join_class': SliceTag,
+ 'secondary_key':'name'},
+ Site: {'table_class' : Sites,
+ 'joins_class': SiteTags, 'join_class': SiteTag,
+ 'secondary_key':'login_base'},
+ Person: {'table_class' : Persons,
+ 'joins_class': PersonTags, 'join_class': PersonTag,
+ 'secondary_key':'email'},
# Ilink : xxx
}
# xxx probably defined someplace else
all_roles = [ 'admin', 'pi', 'tech', 'user', 'node' ]
+tech_roles = [ 'admin', 'pi', 'tech' ]
+#
# generates 2 method classes:
-# Get<classname><methodsuffix> (auth, id_or_name) -> tagvalue or None
-# Set<classname><methodsuffix> (auth, id_or_name, tagvalue) -> None
-# tagvalue is always a string, no cast nor typecheck for now
+# Get<classname><methodsuffix> (auth, id_or_name) -> value or None
+# Set<classname><methodsuffix> (auth, id_or_name, value) -> None
+# value is always a string, no cast nor typecheck for now
+#
+# The expose_in_api flag tells whether this tag may be handled
+# through the Add/Get/Update methods as a native field
#
# note: tag_min_role_id gets attached to the tagtype instance,
# while get_roles and set_roles get attached to the created methods
+# this might need a cleanup
#
-# returns a tuple (get_method, set_method)
-# See Accessors* for examples
+# in addition a convenience method like e.g. LocateNodeArch is defined
+# in the Accessor class; its purpose is to retrieve the tag, or to create it if needed
-def get_set_factory (objclass, methodsuffix,
- tagname, category, description, tag_min_role_id=10,
- get_roles=['admin'], set_roles=['admin']):
+def define_accessors (module, objclass, methodsuffix, tagname,
+ category, description,
+ get_roles=['admin'], set_roles=['admin'],
+ tag_min_role_id=10, expose_in_api = False):
if objclass not in taggable_classes:
try:
raise PLCInvalidArgument,"PLC.Accessors.Factory: unknown class %s"%objclass.__name__
except:
raise PLCInvalidArgument,"PLC.Accessors.Factory: unknown class ??"
+
+ # side-effect on, say, Node.tags, if required
+ if expose_in_api:
+ getattr(objclass,'tags')[tagname]=Parameter(str,"accessor")
+
classname=objclass.__name__
get_name = "Get" + classname + methodsuffix
set_name = "Set" + classname + methodsuffix
+ locator_name = "Locate" + classname + methodsuffix
- # create method objects under PLC.Method.Method
+ # accessor method objects under PLC.Method.Method
get_class = type (get_name, (Method,),
{"__doc__":"Accessor 'get' method designed for %s objects using tag %s"%\
(classname,tagname)})
set_class = type (set_name, (Method,),
{"__doc__":"Accessor 'set' method designed for %s objects using tag %s"%\
(classname,tagname)})
+
# accepts
get_accepts = [ Auth () ]
primary_key=objclass.primary_key
- try:
- secondary_key = taggable_classes[objclass]['secondary_key']
- get_accepts += [ Mixed (objclass.fields[primary_key], objclass.fields[secondary_key]) ]
- except:
- secondary_key = None
- get_accepts += [ objclass.fields[primary_key] ]
+ secondary_key = taggable_classes[objclass]['secondary_key']
+ get_accepts += [ Mixed (objclass.fields[primary_key], objclass.fields[secondary_key]) ]
# for set, idem set of arguments + one additional arg, the new value
set_accepts = get_accepts + [ Parameter (str,"New tag value") ]
table_class = taggable_classes[objclass]['table_class']
joins_class = taggable_classes[objclass]['joins_class']
join_class = taggable_classes[objclass]['join_class']
- value_key = taggable_classes[objclass]['value_key']
+
+ # locate the tag and create it if needed
+ # this method is attached to the Accessor class
+ def locate_or_create_tag (self):
+ return self.locate_or_create_tag (tagname=tagname,
+ category=category,
+ description=description,
+ min_role_id=tag_min_role_id)
+
+ # attach it to the Accessor class
+ setattr(Accessor,locator_name,locate_or_create_tag)
# body of the get method
def get_call (self, auth, id_or_name):
- # search the tagtype - xxx - might need a cache
- tag_types = TagTypes (self.api, {'tagname': tagname})
- if not tag_types:
- return None
- tag_type_id = tag_types[0]['tag_type_id']
+ # locate the tag, see above
+ locator = getattr(Accessor,locator_name)
+ tag_type_id = locator(AccessorSingleton(self.api))
+
filter = {'tag_type_id':tag_type_id}
if isinstance (id_or_name,int):
filter[primary_key]=id_or_name
else:
filter[secondary_key]=id_or_name
- joins = joins_class (self.api,filter,[value_key])
+ joins = joins_class (self.api,filter,['value'])
if not joins:
# xxx - we return None even if id_or_name is not valid
return None
else:
- return joins[0][value_key]
+ return joins[0]['value']
# attach it
setattr (get_class,"call",get_call)
# body of the set method
- def set_call (self, auth, id_or_name, tagvalue):
+ def set_call (self, auth, id_or_name, value):
# locate the object
if isinstance (id_or_name, int):
filter={primary_key:id_or_name}
else:
filter={secondary_key:id_or_name}
- objs = table_class(self.api, filter,[primary_key])
+ objs = table_class(self.api, filter,[primary_key,secondary_key])
if not objs:
raise PLCInvalidArgument, "Cannot set tag on %s %r"%(objclass.__name__,id_or_name)
primary_id = objs[0][primary_key]
- # search tag type & create if needed
- tag_types = TagTypes (self.api, {'tagname':tagname})
- if tag_types:
- tag_type = tag_types[0]
- else:
- # not found: create it
- tag_type_fields = {'tagname':tagname,
- 'category' : category,
- 'description' : description,
- 'min_role_id': tag_min_role_id}
- tag_type = TagType (self.api, tag_type_fields)
- tag_type.sync()
- # proceed
- tag_type_id = tag_type['tag_type_id']
+ # locate the tag, see above
+ locator = getattr(Accessor,locator_name)
+ tag_type_id = locator(AccessorSingleton(self.api))
+
+ # locate the join object (e.g. NodeTag, SliceTag or InterfaceTag)
filter = {'tag_type_id':tag_type_id}
if isinstance (id_or_name,int):
filter[primary_key]=id_or_name
else:
filter[secondary_key]=id_or_name
joins = joins_class (self.api,filter)
- if not joins:
- join = join_class (self.api)
- join['tag_type_id']=tag_type_id
- join[primary_key]=primary_id
- join[value_key]=tagvalue
- join.sync()
+ # setting to something non void
+ if value is not None:
+ if not joins:
+ join = join_class (self.api)
+ join['tag_type_id']=tag_type_id
+ join[primary_key]=primary_id
+ join['value']=value
+ join.sync()
+ else:
+ joins[0]['value']=value
+ joins[0].sync()
+ # providing an empty value means clean up
+ else:
+ if joins:
+ join=joins[0]
+ join.delete()
+ # log it
+ self.event_objects= { objclass.__name__ : [primary_id] }
+ self.message=objclass.__name__
+ if secondary_key in objs[0]:
+ self.message += " %s "%objs[0][secondary_key]
else:
- joins[0][value_key]=tagvalue
- joins[0].sync()
+ self.message += " %d "%objs[0][primary_key]
+ self.message += "updated"
# attach it
setattr (set_class,"call",set_call)
- return ( get_class, set_class )
+ # define in module
+ setattr(module,get_name,get_class)
+ setattr(module,set_name,set_class)
+ # add in <module>.methods
+ try:
+ methods=getattr(module,'methods')
+ except:
+ methods=[]
+ methods += [get_name,set_name]
+ setattr(module,'methods',methods)
git://git.onelab.eu / plcapi.git / blobdiff