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https://github.com/ail-project/ail-framework.git
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59 lines
1.5 KiB
Python
59 lines
1.5 KiB
Python
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#!/usr/bin/env python2
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# -*-coding:UTF-8 -*
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"""
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The ZMQ_Sub_Indexer_Q Module
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============================
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The ZMQ_Sub_Indexer_Q module subscribes to PubSub_Global ZMQ channel
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and bufferizes the data in a Redis FIFO.
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The FIFO will be then processed by the Indexer scripts (ZMQ_Sub_Indexer)
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handling the indexing process of the files seen.
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"""
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import redis, zmq, ConfigParser
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from pubsublogger import publisher
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from packages import ZMQ_PubSub
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configfile = './packages/config.cfg'
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def main():
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"""Main Function"""
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# CONFIG #
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cfg = ConfigParser.ConfigParser()
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cfg.read(configfile)
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# REDIS #
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r_serv = redis.StrictRedis(
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host = cfg.get("Redis_Queues", "host"),
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port = cfg.getint("Redis_Queues", "port"),
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db = cfg.getint("Redis_Queues", "db"))
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# LOGGING #
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publisher.channel = "Queuing"
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# ZMQ #
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channel = cfg.get("PubSub_Global", "channel")
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subscriber_name = "indexer"
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Sub = ZMQ_PubSub.ZMQSub(configfile, "PubSub_Global", channel, subscriber_name)
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publisher.info("""Suscribed to channel {0}""".format(channel))
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# Until the service is requested to be shutdown, the service
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# will get the data from the global ZMQ queue and buffer it in Redis.
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while True:
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Sub.get_and_lpush(r_serv)
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if r_serv.sismember("SHUTDOWN_FLAGS", "Indexer_Q"):
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r_serv.srem("SHUTDOWN_FLAGS", "Indexer_Q")
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print "Shutdown Flag Up: Terminating"
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publisher.warning("Shutdown Flag Up: Terminating.")
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break
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if __name__ == "__main__":
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main()
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