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|
#!/usr/bin/env python
# -*- encoding: utf-8 -*-
import re
ABS_IMPORT_PREFIX = 'pygithub3.core.resources'
class UriNotFound(Exception):
pass
class UriInvalid(Exception):
pass
class Resource(object):
""" """
def __init__(self, args):
""" """
self.args = args
self.validate()
self.uri = self.set_uri()
def validate(self, args):
raise NotImplementedError
def set_uri(self):
raise NotImplementedError
def get_uri(self):
return str(self.uri).strip('/')
def get_model(self):
return getattr(self, 'model', '')
def __getattr__(self, name):
return self.args.get(name)
def __str__(self):
return self.get_uri()
class Factory(object):
""" """
import_pattern = re.compile(r'^(\w+\.)+\w+$')
def __init__(self, **kwargs):
self.args = kwargs
def __validate(func):
""" """
def wrapper(self, resource_path):
if not Factory.import_pattern.match(resource_path):
raise UriInvalid("'%s' isn't valid form" % resource_path)
return func(self, resource_path.lower())
return wrapper
def __dispatch(func):
""" """
from importlib import import_module
def wrapper(self, resource_path):
module_chunk, s, uri_chunk = resource_path.rpartition('.')
try:
# TODO: CamelCase and under_score support, now only Class Name
module = import_module('%s.%s'
% (ABS_IMPORT_PREFIX, module_chunk))
uri = getattr(module, uri_chunk.capitalize())
except ImportError:
raise UriNotFound("'%s' module does not exists" % module_chunk)
except AttributeError:
raise UriNotFound("'%s' uri doesn't exists into '%s' module"
% (uri_chunk.capitalize(), module_chunk))
return func(self, uri)
return wrapper
@__validate
@__dispatch
def __call__(self, resource_class=''):
resource = resource_class(self.args)
assert isinstance(resource, Resource)
return resource
|
