openapi-core/openapi_core/specs.py
2017-09-25 12:29:16 +01:00

102 lines
3.2 KiB
Python

# -*- coding: utf-8 -*-
"""OpenAPI core specs module"""
import logging
from functools import partialmethod, lru_cache
from openapi_spec_validator import openapi_v3_spec_validator
from openapi_core.components import ComponentsFactory
from openapi_core.infos import InfoFactory
from openapi_core.paths import PathsGenerator
from openapi_core.schemas import SchemaRegistry
from openapi_core.servers import ServersGenerator
log = logging.getLogger(__name__)
class Spec(object):
"""Represents an OpenAPI Specification for a service."""
def __init__(self, info, paths, servers=None, components=None):
self.info = info
self.paths = paths and dict(paths)
self.servers = servers or []
self.components = components
def __getitem__(self, path_name):
return self.paths[path_name]
@property
def default_url(self):
return self.servers[0].default_url
def get_server_url(self, index=0):
return self.servers[index].default_url
def get_operation(self, path_pattern, http_method):
return self.paths[path_pattern].operations[http_method]
def get_schema(self, name):
return self.components.schemas[name]
# operations shortcuts
get = partialmethod(get_operation, http_method='get')
put = partialmethod(get_operation, http_method='put')
post = partialmethod(get_operation, http_method='post')
delete = partialmethod(get_operation, http_method='delete')
options = partialmethod(get_operation, http_method='options')
head = partialmethod(get_operation, http_method='head')
patch = partialmethod(get_operation, http_method='patch')
class SpecFactory(object):
def __init__(self, dereferencer, config=None):
self.dereferencer = dereferencer
self.config = config or {}
def create(self, spec_dict, spec_url=''):
if self.config.get('validate_spec', True):
openapi_v3_spec_validator.validate(spec_dict, spec_url=spec_url)
spec_dict_deref = self.dereferencer.dereference(spec_dict)
info_spec = spec_dict_deref.get('info', [])
servers_spec = spec_dict_deref.get('servers', [])
paths = spec_dict_deref.get('paths', [])
components_spec = spec_dict_deref.get('components', [])
info = self.info_factory.create(info_spec)
servers = self.servers_generator.generate(servers_spec)
paths = self.paths_generator.generate(paths)
components = self.components_factory.create(components_spec)
spec = Spec(
info, list(paths), servers=list(servers), components=components)
return spec
@property
@lru_cache()
def schemas_registry(self):
return SchemaRegistry(self.dereferencer)
@property
@lru_cache()
def info_factory(self):
return InfoFactory(self.dereferencer)
@property
@lru_cache()
def servers_generator(self):
return ServersGenerator(self.dereferencer)
@property
@lru_cache()
def paths_generator(self):
return PathsGenerator(self.dereferencer, self.schemas_registry)
@property
@lru_cache()
def components_factory(self):
return ComponentsFactory(self.dereferencer, self.schemas_registry)