def fetch(self, service_id, service_author_id, service_event_id, callback):
asm = self.get_author_service_map(service_author_id)
# TODO - there needs to be a global caching mechanism for this (i.e. memcached, etc.).
# Because of the distributed nature of this two successive updates for the
# same author don't share any state and can't leverage the refresh token
# The refresh token should have a configured TTL
# we need to exchange the refresh token for an access token
query_args = urllib.urlencode([('client_id', self.oauth_config['key']),
('client_secret', self.oauth_config['secret']),
('refresh_token', asm.access_token),
('grant_type', 'refresh_token')])
raw_obj = json_serializer.load(urllib2.urlopen(self.oauth_config['oauth_exchange_url'], query_args))
access_token = raw_obj['access_token']
args = {'access_token': access_token}
# fetch latest version of event
url = '%s%s%s?%s' % (self.oauth_config['endpoint'], self.ACTIVITY_INFO, service_event_id, urllib.urlencode(args))
raw_obj = json_serializer.load(urllib2.urlopen(url))
interpreter = GoogleplusStatusEventInterpreter(raw_obj, asm, self.oauth_config)
callback(create_googleplus_event(asm.author_id, CURRENT_STATE, service_author_id, interpreter.get_id(), raw_obj))
def fetch(self, service_author_id, callback):
super(GoogleplusEventCollector, self).fetch(service_author_id, callback)
state = self.fetch_begin(service_author_id)
self.fetch_log_info(state)
asm = state['asm']
# TODO - there needs to be a global caching mechanism for this (i.e. memcached, etc.).
# Because of the distributed nature of this two successive updates for the
# same author don't share any state and can't leverage the refresh token.
# The refresh token should have a configured TTL
# we need to exchange the refresh token for an access token
query_args = urllib.urlencode([('client_id', self.oauth_config['key']),
('client_secret', self.oauth_config['secret']),
('refresh_token', asm.access_token),
('grant_type', 'refresh_token')])
raw_obj = json_serializer.load(urllib2.urlopen(self.oauth_config['oauth_exchange_url'],
query_args))
access_token = raw_obj['access_token']
args = {'access_token': access_token,
'maxResults': self.PAGE_SIZE}
# setup the url for fetching a page of posts
url = '%s%s?%s' % (self.oauth_config['endpoint'], self.USER_ACTIVITY, urllib.urlencode(args))
total_accepted = 0
while url and total_accepted < self.MAX_EVENTS:
raw_obj = json_serializer.load(urllib2.urlopen(url))
# for element in the feed
for post in raw_obj.get('items', []):
if post['kind'] == 'plus#activity':
interpreter = GoogleplusStatusEventInterpreter(post, asm, self.oauth_config)
if self.screen_event(interpreter, state):
total_accepted = total_accepted + 1
callback(create_googleplus_event(asm.author_id, CURRENT_STATE, service_author_id, interpreter.get_id(), post))
# if
# for
# setup for the next page (if any)
next_page = raw_obj.get('next_pageToken')
if next_page:
args['pageToken'] = next_page
url = '%s%s?%s' % (self.oauth_config['endpoint'],
self.USER_ACTIVITY,
urllib.urlencode(args))
else:
url = None
# terminate the fetch
self.fetch_end(state)