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#!/usr/bin/env python
# -*- encoding: utf-8 -*-
import functools
class Method(object):
""" It wraps the requester method, with behaviour to results """
def __init__(self, method, request, **method_args):
self.method = functools.partial(method, request, **method_args)
self.resource = request.resource
self.cache = {}
def __call__(self):
raise NotImplementedError
class Page(object):
""" Iterator of resources """
def __init__(self, getter, page=1):
self.getter = getter
self.page = page
def __iter__(self):
return self
def __add__(self, number):
return self.page + number
def __radd__(self, number):
return number + self.page
def __sub__(self, number):
return self.page - number
def __rsub__(self, number):
return number - self.page
def __lt__(self, number):
return self.page < number
def __le__(self, number):
return self.page <= number
def __eq__(self, number):
return self.page == number
def __ne__(self, number):
return self.page != number
def __gt__(self, number):
return self.page > number
def __ge__(self, number):
return self.page >= number
@property
def resources(self):
return getattr(self, 'count', None) or '~'
def get_content(func):
def wrapper(self):
if not hasattr(self, 'count'):
content = self.getter(self.page)
self.count = len(content)
self.iterable = iter(content)
return func(self)
return wrapper
@get_content
def __next__(self):
try:
return self.iterable.next()
except StopIteration:
self.iterable = iter(self.getter(self.page))
raise StopIteration
def next(self):
return self.__next__()
def __str__(self):
return '<{name}{page} resources={resources}>'.format(
name=self.__class__.__name__,
page=self.page,
resources=self.resources)
class Result(object):
""" Iterator of pages """
def __init__(self, method):
self.getter = method
def __iter__(self):
return self
def next(self):
return self.__next__()
def iterator(self):
""" generator """
for page in self:
for resource in page:
yield resource
def all(self):
return list(self.iterator())
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