ail-framework/bin/importer/FeederImporter.py

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#!/usr/bin/env python3
# -*-coding:UTF-8 -*
"""
Importer Class
================
Import Content
"""
import os
import sys
import importlib
import json
sys.path.append(os.environ['AIL_BIN'])
##################################
# Import Project packages
##################################
from importer.abstract_importer import AbstractImporter
from modules.abstract_module import AbstractModule
from lib.ConfigLoader import ConfigLoader
#### CONFIG ####
config_loader = ConfigLoader()
r_db = config_loader.get_db_conn('Kvrocks_DB')
config_loader = None
# --- CONFIG --- #
#### FUNCTIONS ####
def add_json_feeder_to_queue(json_data):
json_data = json.dumps(json_data)
return r_db.rpush('importer:feeder', json_data)
def api_add_json_feeder_to_queue(json_data):
if not json_data:
return {'status': 'error', 'reason': 'Malformed JSON'}, 400
# # TODO: add JSON verification
res = add_json_feeder_to_queue(json_data)
if not res:
return {'status': 'error'}, 400
return {'status': 'success'}, 200
# --- FUNCTIONS --- #
class FeederImporter(AbstractImporter):
def __init__(self):
super().__init__()
self.feeders = {}
self.reload_feeders()
# TODO ADD TIMEOUT RELOAD
def reload_feeders(self):
feeder_dir = os.path.join(os.environ['AIL_BIN'], 'importer', 'feeders')
feeders = [f[:-3] for f in os.listdir(feeder_dir) if os.path.isfile(os.path.join(feeder_dir, f))]
self.feeders = {}
for feeder in feeders:
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if feeder == 'abstract_chats_feeder':
continue
print(feeder)
part = feeder.split('.')[-1]
# import json importer class
mod = importlib.import_module(f'importer.feeders.{part}')
cls = getattr(mod, f'{feeder}Feeder')
print(cls)
self.feeders[feeder] = cls
print()
print(self.feeders)
print()
def get_feeder(self, json_data):
class_name = None
feeder_name = json_data.get('source')
if feeder_name:
if feeder_name.startswith('ail_feeder_'):
feeder_name = feeder_name.replace('ail_feeder_', '', 1)
class_name = feeder_name.replace('-', '_').title()
if not class_name or class_name not in self.feeders:
class_name = 'Default'
cls = self.feeders[class_name]
return cls(json_data)
def importer(self, json_data):
feeder = self.get_feeder(json_data)
feeder_name = feeder.get_name()
print(f'importing: {feeder_name} feeder')
obj = feeder.get_obj() # TODO replace by a list of objects to import ????
# process meta
if feeder.get_json_meta():
feeder.process_meta()
if obj.type == 'item': # object save on disk as file (Items)
gzip64_content = feeder.get_gzip64_content()
return obj, f'{feeder_name} {gzip64_content}'
else: # Messages save on DB
return obj, f'{feeder_name}'
class FeederModuleImporter(AbstractModule):
def __init__(self):
super(FeederModuleImporter, self).__init__()
self.pending_seconds = 5
config = ConfigLoader()
self.r_db = config.get_db_conn('Kvrocks_DB')
self.importer = FeederImporter()
def get_message(self):
return self.r_db.lpop('importer:feeder')
# TODO RELOAD LIST after delta
def compute(self, message):
# TODO HANDLE Invalid JSON
json_data = json.loads(message)
# TODO multiple objs + messages
obj, relay_message = self.importer.importer(json_data)
####
self.add_message_to_queue(obj=obj, message=relay_message)
# Launch Importer
if __name__ == '__main__':
module = FeederModuleImporter()
module.run()