bookwyrm/fedireads/connectors/abstract_connector.py

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''' functionality outline for a book data connector '''
from abc import ABC, abstractmethod
from fedireads import models
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from fedireads.connectors import CONNECTORS
class AbstractConnector(ABC):
''' generic book data connector '''
def __init__(self, connector_name):
# load connector settings
settings = CONNECTORS.get(connector_name)
if not settings:
raise ValueError('No connector with name "%s"' % connector_name)
info = models.Connector.objects.get(name=settings['db_name'])
self.model = info
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self.url = info.base_url
self.covers_url = info.covers_url
self.search_url = info.search_url
self.key_name = info.key_name
self.max_query_count = info.max_query_count
def is_available(self):
''' check if you're allowed to use this connector '''
if self.model.max_query_count is not None:
if self.model.query_count >= self.model.max_query_count:
return False
return True
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@abstractmethod
def search(self, query):
''' free text search '''
# return list of search result objs
pass
@abstractmethod
def get_or_create_book(self, book_id):
''' request and format a book given an identifier '''
# return book model obj
pass
@abstractmethod
def get_or_create_author(self, book_id):
''' request and format a book given an identifier '''
# return book model obj
pass
@abstractmethod
def update_book(self, book_obj):
''' sync a book with the canonical remote copy '''
# return book model obj
pass
class SearchResult(object):
''' standardized search result object '''
def __init__(self, title, key, author, year, raw_data):
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self.title = title
self.key = key
self.author = author
self.year = year
self.raw_data = raw_data
def __repr__(self):
return "<SearchResult key={!r} title={!r} author={!r}>".format(
self.key, self.title, self.author)