7b1d0eb9d6
no functional changes are intended. Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
150 lines
4.6 KiB
Python
150 lines
4.6 KiB
Python
# Copyright (C) 2012 Nippon Telegraph and Telephone Corporation.
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# Copyright (C) 2012 Isaku Yamahata <yamahata at private email ne jp>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import inspect
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from ryu import cfg
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import webob.dec
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from ryu.lib import hub
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from routes import Mapper
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from routes.util import URLGenerator
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CONF = cfg.CONF
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CONF.register_cli_opts([
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cfg.StrOpt('wsapi-host', default='', help='webapp listen host'),
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cfg.IntOpt('wsapi-port', default=8080, help='webapp listen port')
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])
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HEX_PATTERN = r'0x[0-9a-z]+'
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DIGIT_PATTERN = r'[1-9][0-9]*'
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def route(name, path, methods=None, requirements=None):
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def _route(controller_method):
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controller_method.routing_info = {
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'name': name,
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'path': path,
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'methods': methods,
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'requirements': requirements,
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}
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return controller_method
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return _route
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class ControllerBase(object):
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special_vars = ['action', 'controller']
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def __init__(self, req, link, data, **config):
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self.req = req
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self.link = link
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for name, value in config.items():
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setattr(self, name, value)
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def __call__(self, req):
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action = self.req.urlvars.get('action', 'index')
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if hasattr(self, '__before__'):
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self.__before__()
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kwargs = self.req.urlvars.copy()
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for attr in self.special_vars:
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if attr in kwargs:
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del kwargs[attr]
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return getattr(self, action)(req, **kwargs)
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class WSGIApplication(object):
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def __init__(self, **config):
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self.config = config
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self.mapper = Mapper()
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self.registory = {}
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super(WSGIApplication, self).__init__()
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# XXX: Switch how to call the API of Routes for every version
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match_argspec = inspect.getargspec(self.mapper.match)
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if 'environ' in match_argspec.args:
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# New API
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self._match = self._match_with_environ
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else:
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# Old API
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self._match = self._match_with_path_info
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def _match_with_environ(self, req):
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match = self.mapper.match(environ=req.environ)
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return match
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def _match_with_path_info(self, req):
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self.mapper.environ = req.environ
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match = self.mapper.match(req.path_info)
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return match
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@webob.dec.wsgify
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def __call__(self, req):
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match = self._match(req)
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if not match:
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return webob.exc.HTTPNotFound()
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req.urlvars = match
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link = URLGenerator(self.mapper, req.environ)
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data = None
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name = match['controller'].__name__
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if name in self.registory:
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data = self.registory[name]
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controller = match['controller'](req, link, data, **self.config)
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return controller(req)
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def register(self, controller, data=None):
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methods = inspect.getmembers(controller,
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lambda v: inspect.ismethod(v) and
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hasattr(v, 'routing_info'))
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for method_name, method in methods:
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routing_info = getattr(method, 'routing_info')
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name = routing_info['name']
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path = routing_info['path']
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conditions = {}
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if routing_info.get('methods'):
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conditions['method'] = routing_info['methods']
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requirements = routing_info.get('requirements') or {}
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self.mapper.connect(name,
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path,
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controller=controller,
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requirements=requirements,
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action=method_name,
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conditions=conditions)
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if data:
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self.registory[controller.__name__] = data
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class WSGIServer(hub.WSGIServer):
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def __init__(self, application, **config):
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super(WSGIServer, self).__init__((CONF.wsapi_host, CONF.wsapi_port),
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application, **config)
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def __call__(self):
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self.serve_forever()
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def start_service(app_mgr):
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for instance in app_mgr.contexts.values():
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if instance.__class__ == WSGIApplication:
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return WSGIServer(instance)
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return None
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