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# coding: utf-8 |
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from __future__ import unicode_literals |
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from __future__ import absolute_import |
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import arrow |
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# django |
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from django.conf import settings |
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from django.utils.log import getLogger |
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# trigger happy |
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from django_th.services import default_provider |
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from django_th.models import TriggerService, update_result |
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logger = getLogger('django_th.trigger_happy') |
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default_provider.load_services() |
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class Pub(object): |
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""" |
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Publishing data to any service |
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""" |
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def update_trigger(self, service): |
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""" |
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update the date when occurs the trigger |
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:param service: service object to update |
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""" |
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now = arrow.utcnow().to(settings.TIME_ZONE).format( |
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'YYYY-MM-DD HH:mm:ssZZ') |
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TriggerService.objects.filter(id=service.id).update(date_triggered=now) |
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def log_update(self, service, to_update, status, count): |
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""" |
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lets log everything at the end |
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:param service: service object |
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:param to_update: boolean to check if we have to update |
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:param status: is everything worked fine ? |
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:param count: number of data to update |
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:type service: service object |
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:type to_update: boolean |
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:type status: boolean |
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:type count: interger |
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""" |
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if to_update: |
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if status: |
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msg = "{} - {} new data".format(service, count) |
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update_result(service.id, msg="OK") |
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logger.info(msg) |
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else: |
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msg = "{} AN ERROR OCCURS ".format(service) |
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update_result(service.id, msg=msg) |
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logger.warn(msg) |
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else: |
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logger.debug("{} nothing new ".format(service)) |
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def provider(self, service): |
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""" |
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get the data from (the cache of) the service provider |
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:param service: |
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:return: data |
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""" |
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service_provider = default_provider.get_service( |
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str(service.provider.name.name)) |
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# 1) get the data from the provider service |
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module_name = 'th_' + \ |
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service.provider.name.name.split('Service')[1].lower() |
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kwargs = {'trigger_id': str(service.id), 'cache_stack': module_name} |
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return getattr(service_provider, 'process_data')(**kwargs) |
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def consumer(self, service, data, to_update, status): |
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""" |
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call the consumer and handle the data |
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:param service: |
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:param data: |
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:param to_update: |
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:param status: |
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:return: status |
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""" |
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# consumer - the service which uses the data |
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service_consumer = default_provider.get_service( |
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str(service.consumer.name.name)) |
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kwargs = {'user': service.user} |
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getattr(service_consumer, '__init__')(service.consumer.token, |
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**kwargs) |
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instance = getattr(service_consumer, 'save_data') |
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# 2) for each one |
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for d in data: |
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d['userservice_id'] = service.consumer.id |
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# the consumer will save the data and return if success or not |
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status = instance(service.id, **d) |
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to_update = True |
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return to_update, status |
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def publishing(self, service): |
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""" |
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the purpose of this tasks is to get the data from the cache |
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then publish them |
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:param service: service object where we will publish |
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:type service: object |
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""" |
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# flag to know if we have to update |
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to_update = False |
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# flag to get the status of a service |
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status = False |
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# provider - the service that offer data |
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# check if the service has already been triggered |
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# if date_triggered is None, then it's the first run |
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if service.date_triggered is None: |
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logger.debug("first run {}".format(service)) |
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to_update = True |
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status = True |
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# run run run |
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data = self.provider(service) |
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count_new_data = len(data) if data else 0 |
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if count_new_data > 0: |
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to_update, status = self.consumer(service, data, to_update, status) |
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# let's log |
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self.log_update(service, to_update, status, count_new_data) |
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# let's update |
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if to_update and status: |
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self.update_trigger(service) |
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foxmask /
django-th
