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https://github.com/ail-project/ail-framework.git
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226 lines
8.2 KiB
Python
Executable file
226 lines
8.2 KiB
Python
Executable file
#!/usr/bin/env python3
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# -*-coding:UTF-8 -*
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"""
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The Mixer Module
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================
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This module is consuming the Redis-list created by the ZMQ_Feed_Q Module.
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This module take all the feeds provided in the config.
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Depending on the configuration, this module will process the feed as follows:
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operation_mode 1: "Avoid any duplicate from any sources"
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- The module maintain a list of content for each item
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- If the content is new, process it
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- Else, do not process it but keep track for statistics on duplicate
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DISABLED
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operation_mode 2: "Keep duplicate coming from different sources"
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- The module maintain a list of name given to the item by the feeder
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- If the name has not yet been seen, process it
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- Elseif, the saved content associated with the item is not the same, process it
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- Else, do not process it but keep track for statistics on duplicate
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operation_mode 3: "Don't look if duplicated content"
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- SImply do not bother to check if it is a duplicate
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- Simply do not bother to check if it is a duplicate
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Note that the hash of the content is defined as the sha1(gzip64encoded).
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"""
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import os
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import sys
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import hashlib
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import time
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sys.path.append(os.environ['AIL_BIN'])
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##################################
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# Import Project packages
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##################################
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from modules.abstract_module import AbstractModule
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from lib.ConfigLoader import ConfigLoader
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class Mixer(AbstractModule):
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"""docstring for Mixer module."""
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def __init__(self):
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super(Mixer, self).__init__()
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config_loader = ConfigLoader()
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self.r_cache = config_loader.get_redis_conn("Redis_Mixer_Cache")
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# self.r_cache_s = config_loader.get_redis_conn("Redis_Log_submit")
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self.pending_seconds = 5
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self.refresh_time = 30
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self.last_refresh = time.time()
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self.operation_mode = config_loader.get_config_int("Module_Mixer", "operation_mode")
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print(f'Operation mode {self.operation_mode}')
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self.ttl_key = config_loader.get_config_int("Module_Mixer", "ttl_duplicate")
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self.default_feeder_name = config_loader.get_config_str("Module_Mixer", "default_unnamed_feed_name")
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self.nb_processed_items = 0
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self.feeders_processed = {}
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self.feeders_duplicate = {}
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self.logger.info(f"Module: {self.module_name} Launched")
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# TODO Save stats in cache
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# def get_feeders(self):
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# return self.r_cache_s.smembers("mixer_cache:feeders")
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#
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# def get_feeder_nb_last_processed(self, feeder):
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# nb = self.r_cache_s.hget("mixer_cache:feeders:last_processed", feeder)
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# if nb:
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# return int(nb)
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# else:
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# return 0
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#
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# def get_cache_feeders_nb_last_processed(self):
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# feeders = {}
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# for feeder in self.get_feeders():
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# feeders[feeder] = self.get_feeder_nb_last_processed(feeder)
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# return feeders
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def clear_feeders_stat(self):
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pass
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# self.r_cache_s.delete("mixer_cache:feeders:last_processed")
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def increase_stat_processed(self, feeder):
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self.nb_processed_items += 1
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try:
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self.feeders_processed[feeder] += 1
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except KeyError:
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self.feeders_processed[feeder] = 1
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def increase_stat_duplicate(self, feeder):
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self.nb_processed_items += 1
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try:
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self.feeders_duplicate[feeder] += 1
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except KeyError:
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self.feeders_duplicate[feeder] = 1
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# TODO Save stats in cache
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def refresh_stats(self):
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if int(time.time() - self.last_refresh) > self.refresh_time:
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# update internal feeder
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to_print = f'Mixer; ; ; ;mixer_all All_feeders Processed {self.nb_processed_items} item(s) in {self.refresh_time}sec'
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print(to_print)
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self.redis_logger.info(to_print)
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self.nb_processed_items = 0
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for feeder in self.feeders_processed:
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to_print = f'Mixer; ; ; ;mixer_{feeder} {feeder} Processed {self.feeders_processed[feeder]} item(s) in {self.refresh_time}sec'
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print(to_print)
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self.redis_logger.info(to_print)
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self.feeders_processed[feeder] = 0
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for feeder in self.feeders_duplicate:
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to_print = f'Mixer; ; ; ;mixer_{feeder} {feeder} Duplicated {self.feeders_duplicate[feeder]} item(s) in {self.refresh_time}sec'
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print(to_print)
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self.redis_logger.info(to_print)
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self.feeders_duplicate[feeder] = 0
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self.last_refresh = time.time()
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self.clear_feeders_stat()
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time.sleep(0.5)
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def computeNone(self):
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self.refresh_stats()
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def compute(self, message):
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self.refresh_stats()
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# obj = self.obj
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# TODO CHECK IF NOT self.object -> get object global ID from message
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splitted = message.split()
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# message -> feeder_name - content
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# or message -> feeder_name
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# feeder_name - object
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if len(splitted) == 1: # feeder_name - object (content already saved)
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feeder_name = message
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gzip64encoded = None
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# Feeder name in message: "feeder obj_id gzip64encoded"
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elif len(splitted) == 2: # gzip64encoded content
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feeder_name, gzip64encoded = splitted
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else:
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self.logger.warning(f'Invalid Message: {splitted} not processed')
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return None
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if self.obj.type == 'item':
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# Remove ITEMS_FOLDER from item path (crawled item + submitted)
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# Limit basename length
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obj_id = self.obj.id
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self.obj.sanitize_id()
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if self.obj.id != obj_id:
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self.queue.rename_message_obj(self.obj.id, obj_id)
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relay_message = gzip64encoded
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# print(relay_message)
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# TODO only work for item object
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# Avoid any duplicate coming from any sources
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if self.operation_mode == 1:
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digest = hashlib.sha1(gzip64encoded.encode('utf8')).hexdigest()
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if self.r_cache.exists(digest): # Content already exists
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# STATS
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self.increase_stat_duplicate(feeder_name)
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else: # New content
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self.r_cache.sadd(digest, feeder_name)
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self.r_cache.expire(digest, self.ttl_key)
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self.increase_stat_processed(feeder_name)
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self.add_message_to_queue(message=relay_message)
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# Need To Be Fixed, Currently doesn't check the source (-> same as operation 1)
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# # Keep duplicate coming from different sources
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# elif self.operation_mode == 2:
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# digest = hashlib.sha1(gzip64encoded.encode('utf8')).hexdigest()
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# # Filter to avoid duplicate
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# older_digest = self.r_cache.get(f'HASH_{item_id}')
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# if older_digest is None:
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# # New content
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# # Store in redis for filtering
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# self.r_cache.set(f'HASH_{item_id}', digest)
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# self.r_cache.sadd(item_id, feeder_name)
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# self.r_cache.expire(item_id, self.ttl_key)
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# self.r_cache.expire(f'HASH_{item_id}', self.ttl_key)
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#
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# self.add_message_to_queue(relay_message)
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#
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# else:
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# if digest != older_digest:
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# # Same item name but different content
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# # STATS
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# self.increase_stat_duplicate(feeder_name)
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# self.r_cache.sadd(item_id, feeder_name)
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# self.r_cache.expire(item_id, ttl_key)
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#
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# self.add_message_to_queue(relay_message)
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#
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# else:
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# # Already processed
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# # Keep track of processed items
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# # STATS
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# self.increase_stat_duplicate(feeder_name)
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# No Filtering
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else:
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self.increase_stat_processed(feeder_name)
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if self.obj.type == 'item':
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self.add_message_to_queue(obj=self.obj, message=gzip64encoded)
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else:
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self.add_message_to_queue(obj=self.obj, message=gzip64encoded)
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if __name__ == "__main__":
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module = Mixer()
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module.run()
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