def object_data_generator(obj, attrs=dict()):
yield ('objectType', lambda: self.object_type_map[obj.type])
yield ('objectID', lambda: obj.oid)
yield ('objectName', lambda: obj.name)
yield ('parentURI', lambda: obj.__parent__.__name__)
yield ('parentID', lambda: (obj.__parent__.oid
if (not IRootContainer.providedBy(obj)
and not ISystemCapability.providedBy(obj))
else None))
yield ('completionStatus', lambda: 'Complete') # TODO: report errors / incomplete status
if IStorageContainer.providedBy(obj) or IDataObject.providedBy(obj):
yield ('metadata', lambda: dict(obj.metadata))
if isinstance(obj, ObjectIdContainer):
yield ('children', lambda: [(child.oid if IInStorageContainer.providedBy(child)
else child.__name__) for child in obj.listcontent()])
yield ('childrenrange', lambda: '0-%d' % len(obj.listcontent()))
elif IStorageContainer.providedBy(obj):
yield ('children', lambda: [(child.name if IDataObject.providedBy(child)
else child.__name__) for child in obj.listcontent()])
yield ('childrenrange', lambda: '0-%d' % len(obj.listcontent()))
elif IDataObject.providedBy(obj) and render_value:
# NOTE: 'value' attribute name is mandated by the specification
if 'value' in attrs:
begin, end = (int(v) for v in attrs['value'])
else:
begin = 0
end = None
yield ('value', lambda: get_data(obj, begin=begin, end=end))
yield ('valuetransferencoding', lambda: 'base64')
elif ISystemCapability.providedBy(obj):
yield ('children', lambda: [])
yield ('childrenrange', lambda: '0-0'),
yield ('capabilities', lambda: current_capabilities.system)
def render_get(self, request):
if not request.interaction.checkPermission('view', self.context):
raise NotFound
cdmi = request.getHeader('X-CDMI-Specification-Version')
if cdmi or not IDataObject.providedBy(self.context):
request.setHeader('Content-Type', self.object_type_map[self.context.type])
log.debug('Received arguments: %s', request.args)
attrs = dict(self.parse_args_to_filter_attrs(request.args))
return self.object_to_dict(self.context, request, attrs=attrs)
else:
return self.handle_noncdmi_get(request)
def handle_success(self, r, request, obj, principal, update, dstream, encoding):
if not update:
obj.__owner__ = principal
self.context.add(obj)
if IDataObject.providedBy(obj):
# XXX this is a hack and it doesn't feel the extraction should
# happen here. But cannot come up with smarter ideas at the moment
credentials = request.getHeader('X-Auth-Token')
self.store_object(obj, dstream, encoding, credentials)
self.add_log_event(principal, '%s of %s (%s) via CDMI was successful' %
('Creation' if not update else 'Update', obj.name, obj.__name__))
def object_to_dict(self, obj):
parent_oid = (obj.__parent__.oid if not IRootContainer.providedBy(obj) else None)
data = {'objectType': self.object_type_map[obj.type],
'objectID': obj.oid,
'objectName': obj.name,
'parentURI': obj.__parent__.__name__,
'parentID': parent_oid,
'completionStatus': 'Complete',
'metadata': dict(obj.metadata),
'childrenrange': '0-%d' % len(obj.listcontent()),
'children': [child.name if IDataObject.providedBy(child)
else child.__name__
for child in obj.listcontent()]}
data.update(self.get_additional_data(obj))
return data
def render_delete(self, request):
name = unicode(parse_path(request.path)[-1])
existing_object = self.context.__parent__[name]
if existing_object:
log.debug('Deleting %s', self.context)
# are we deleting a container?
if IStorageContainer.providedBy(self.context):
# check children
children = [child for child in self.context.listcontent() if
IDataObject.providedBy(child) or
IStorageContainer.providedBy(child)]
if len(children) > 0:
raise BadRequest('Attempt to delete a non-empty container')
else:
# XXX: Alternative authentication methods!
credentials = request.getHeader('X-Auth-Token')
storemgr = getAdapter(self.context, IDataStoreFactory).create()
storemgr.delete(credentials)
del self.context.__parent__[name]
handle(self.context, ModelDeletedEvent(self.context.__parent__))
else:
raise NotFound
