And add helper functions to get OFP modules/class for a given OFP version. Signed-off-by: Isaku Yamahata <[email protected]> --- ryu/ofproto/__init__.py | 59 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+)
diff --git a/ryu/ofproto/__init__.py b/ryu/ofproto/__init__.py index e69de29..6eec046 100644 --- a/ryu/ofproto/__init__.py +++ b/ryu/ofproto/__init__.py @@ -0,0 +1,59 @@ +# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation. +# Copyright (C) 2013 Isaku Yamahata <yamahata at private email ne jp> +# +# 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. + +import glob +import inspect +import os.path + +from ryu import utils + + +_OFPROTO_DIR = os.path.dirname(__file__) +_OFPROTO_PARSER_FILE_NAMES = glob.glob(os.path.join( + _OFPROTO_DIR, 'ofproto_v[0-9]*_[0-9]*_parser.py')) +_OFPROTO_PARSER_FILE_NAMES = [os.path.basename(name) + for name in _OFPROTO_PARSER_FILE_NAMES] + + +_OFPROTO_MODULES = {} +for parser_file_name in _OFPROTO_PARSER_FILE_NAMES: + # drop lasting '.py' + parser_mod_name = __name__ + '.' + parser_file_name[:-3] + consts_mod_name = parser_mod_name[:-7] # drop lasting '_parser' + try: + parser_mod = utils.import_module(parser_mod_name) + consts_mod = utils.import_module(consts_mod_name) + except: + continue + + assert consts_mod.OFP_VERSION not in _OFPROTO_MODULES + _OFPROTO_MODULES[consts_mod.OFP_VERSION] = (consts_mod, parser_mod) + + +def get_ofp_module(ofp_version): + """get modules pair for the constants and parser of OF-wire of + a given OF version. + """ + return _OFPROTO_MODULES[ofp_version] + + +def get_ofp_cls(ofp_version, name): + """get class for name of a given OF version""" + (_consts_mod, parser_mod) = get_ofp_module(ofp_version) + for i in inspect.getmembers(parser_mod, inspect.isclass): + if i[0] == name: + return i[1] + return None -- 1.7.10.4 ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
