yaql/examples/ns/definition.py
2013-07-31 14:49:47 +04:00

40 lines
1.2 KiB
Python

# Copyright (c) 2013 Mirantis, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
short_names = {}
values = {}
def register_shortening(short_name, fqns):
existing = short_names.get(short_name)
if existing and existing != fqns:
raise Exception(
"A namespace ('{0}') is already registered as '{1}'".format(
existing, short_name))
short_names[short_name] = fqns
def register_symbol(fqns, symbol):
if not fqns in values:
values[fqns] = {symbol}
else:
values[fqns].add(symbol)
def get_fqns(short_name):
return short_names.get(short_name)
def validate(fqns, value):
return fqns in values and value in values[fqns]