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categ file) in the configuration file. It permits to better control the flow of pastes. Also set default mixer duplicate filtering to 3 (Do not filter)
200 lines
8 KiB
Python
Executable file
200 lines
8 KiB
Python
Executable file
#!/usr/bin/env python
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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 follow:
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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 paste
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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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operation_mode 2: "Keep duplicate coming from different sources"
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- The module maintain a list of name given to the paste 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 paste 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 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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Every data coming from a named feed can be sent to a pre-processing module before going to the global module.
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The mapping can be done via the variable FEED_QUEUE_MAPPING
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"""
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import base64
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import hashlib
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import os
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import time
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from pubsublogger import publisher
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import redis
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import ConfigParser
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from Helper import Process
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# CONFIG #
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refresh_time = 30
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FEED_QUEUE_MAPPING = { "feeder2": "preProcess1" } # Map a feeder name to a pre-processing module
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if __name__ == '__main__':
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publisher.port = 6380
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publisher.channel = 'Script'
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config_section = 'Mixer'
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p = Process(config_section)
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configfile = os.path.join(os.environ['AIL_BIN'], 'packages/config.cfg')
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if not os.path.exists(configfile):
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raise Exception('Unable to find the configuration file. \
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Did you set environment variables? \
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Or activate the virtualenv.')
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cfg = ConfigParser.ConfigParser()
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cfg.read(configfile)
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# REDIS #
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server = redis.StrictRedis(
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host=cfg.get("Redis_Mixer_Cache", "host"),
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port=cfg.getint("Redis_Mixer_Cache", "port"),
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db=cfg.getint("Redis_Mixer_Cache", "db"))
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# LOGGING #
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publisher.info("Feed Script started to receive & publish.")
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# OTHER CONFIG #
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operation_mode = cfg.getint("Module_Mixer", "operation_mode")
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ttl_key = cfg.getint("Module_Mixer", "ttl_duplicate")
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# STATS #
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processed_paste = 0
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processed_paste_per_feeder = {}
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duplicated_paste_per_feeder = {}
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time_1 = time.time()
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print('Operation mode ' + str(operation_mode))
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while True:
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message = p.get_from_set()
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if message is not None:
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splitted = message.split()
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if len(splitted) == 2:
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complete_paste, gzip64encoded = splitted
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try:
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feeder_name, paste_name = complete_paste.split('>')
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feeder_name.replace(" ","")
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except ValueError as e:
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feeder_name = "unnamed_feeder"
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paste_name = complete_paste
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# Processed paste
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processed_paste += 1
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try:
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processed_paste_per_feeder[feeder_name] += 1
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except KeyError as e:
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# new feeder
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processed_paste_per_feeder[feeder_name] = 1
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duplicated_paste_per_feeder[feeder_name] = 0
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relay_message = "{0} {1}".format(paste_name, gzip64encoded)
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digest = hashlib.sha1(gzip64encoded).hexdigest()
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# Avoid any duplicate coming from any sources
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if operation_mode == 1:
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if server.exists(digest): # Content already exists
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#STATS
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duplicated_paste_per_feeder[feeder_name] += 1
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else: # New content
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# populate Global OR populate another set based on the feeder_name
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if feeder_name in FEED_QUEUE_MAPPING:
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p.populate_set_out(relay_message, FEED_QUEUE_MAPPING[feeder_name])
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else:
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p.populate_set_out(relay_message, 'Mixer')
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server.sadd(digest, feeder_name)
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server.expire(digest, ttl_key)
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# Keep duplicate coming from different sources
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elif operation_mode == 2:
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# Filter to avoid duplicate
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content = server.get('HASH_'+paste_name)
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if content is None:
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# New content
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# Store in redis for filtering
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server.set('HASH_'+paste_name, digest)
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server.sadd(paste_name, feeder_name)
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server.expire(paste_name, ttl_key)
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server.expire('HASH_'+paste_name, ttl_key)
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# populate Global OR populate another set based on the feeder_name
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if feeder_name in FEED_QUEUE_MAPPING:
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p.populate_set_out(relay_message, FEED_QUEUE_MAPPING[feeder_name])
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else:
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p.populate_set_out(relay_message, 'Mixer')
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else:
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if digest != content:
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# Same paste name but different content
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#STATS
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duplicated_paste_per_feeder[feeder_name] += 1
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server.sadd(paste_name, feeder_name)
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server.expire(paste_name, ttl_key)
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# populate Global OR populate another set based on the feeder_name
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if feeder_name in FEED_QUEUE_MAPPING:
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p.populate_set_out(relay_message, FEED_QUEUE_MAPPING[feeder_name])
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else:
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p.populate_set_out(relay_message, 'Mixer')
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else:
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# Already processed
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# Keep track of processed pastes
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#STATS
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duplicated_paste_per_feeder[feeder_name] += 1
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continue
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else:
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# populate Global OR populate another set based on the feeder_name
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if feeder_name in FEED_QUEUE_MAPPING:
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p.populate_set_out(relay_message, FEED_QUEUE_MAPPING[feeder_name])
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else:
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p.populate_set_out(relay_message, 'Mixer')
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else:
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# TODO Store the name of the empty paste inside a Redis-list.
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print "Empty Paste: not processed"
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publisher.debug("Empty Paste: {0} not processed".format(message))
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else:
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print "Empty Queues: Waiting..."
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if int(time.time() - time_1) > refresh_time:
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print processed_paste_per_feeder
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to_print = 'Mixer; ; ; ;mixer_all All_feeders Processed {0} paste(s) in {1}sec'.format(processed_paste, refresh_time)
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print to_print
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publisher.info(to_print)
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processed_paste = 0
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for feeder, count in processed_paste_per_feeder.iteritems():
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to_print = 'Mixer; ; ; ;mixer_{0} {0} Processed {1} paste(s) in {2}sec'.format(feeder, count, refresh_time)
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print to_print
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publisher.info(to_print)
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processed_paste_per_feeder[feeder] = 0
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for feeder, count in duplicated_paste_per_feeder.iteritems():
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to_print = 'Mixer; ; ; ;mixer_{0} {0} Duplicated {1} paste(s) in {2}sec'.format(feeder, count, refresh_time)
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print to_print
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publisher.info(to_print)
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duplicated_paste_per_feeder[feeder] = 0
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time_1 = time.time()
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time.sleep(0.5)
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continue
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