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import abc |
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import inspect |
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import re |
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5
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from mountapi.core import exceptions |
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6
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7
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8
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class AbstractConverter(metaclass=abc.ABCMeta): |
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param_url: str = None |
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param_regex: str = None |
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12
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@classmethod |
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def path_to_regex(cls, path): |
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return re.sub(cls.param_url, cls.param_regex, path) + '$' |
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15
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16
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class IntConverter(AbstractConverter): |
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param_url = r'<(?P<param>\w+):int>' |
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param_regex = r'(?P<\1>\d+)' |
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class StrConverter(AbstractConverter): |
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param_url = r'<(?P<param>\w+):str>' |
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param_regex = r'(?P<\1>\w+)' |
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class AbstractSchema(exceptions.NotImplementedMixin, metaclass=abc.ABCMeta): |
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@abc.abstractmethod |
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def build(self): |
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self.not_implemented() |
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@abc.abstractmethod |
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def match(self, path): |
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self.not_implemented() |
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36
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class Schema(AbstractSchema): |
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_converter_map = {int: IntConverter, str: StrConverter} |
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def __init__(self, routes: list) -> None: |
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self._routes = routes |
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self._schema = None |
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def build(self) -> None: |
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if self._schema is None: |
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self._schema = self._build_schema() |
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48
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def _build_schema(self): |
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schema = {} |
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for route in self._routes: |
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schema[route.path] = { |
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'endpoint': route.endpoint, |
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'regex': self._get_path_regex(route.path), |
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**self._get_schema_http_methods(route) |
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} |
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return schema |
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def _get_path_regex(self, path): |
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for converter in self._converter_map.values(): |
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path = converter.path_to_regex(path) |
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return path |
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64
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def _get_schema_http_methods(self, route): |
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return { |
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http_method: { |
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'handler': getattr(route.endpoint, http_method.lower()), |
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'params': self._get_func_params( |
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getattr(route.endpoint, http_method.lower()) |
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) |
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} for http_method in route.endpoint.get_allowed_methods() |
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} |
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def _get_func_params(self, func): |
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return { |
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param.name: self._converter_map[param.annotation] |
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for param in inspect.signature(func).parameters.values() |
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if param.annotation != inspect.Parameter.empty |
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} |
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80
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81
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def match(self, path): |
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for route_path in self._schema: |
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route_match = re.match(self._schema[route_path]['regex'], path) |
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if route_match: |
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return { |
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'endpoint': self._schema[route_path]['endpoint'], |
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'kwargs': route_match.groupdict() |
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} |
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else: |
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raise exceptions.NotFound() |
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pyQuest /
mount-api
