AIL-framework/bin/ZMQ_Sub_Attributes.py

#!/usr/bin/env python2
# -*-coding:UTF-8 -*

"""
The ZMQ_Sub_Attribute Module
============================

This module is consuming the Redis-list created by the ZMQ_PubSub_Line_Q Module.

It perform a sorting on the line's length and publish/forward them to differents
channels:

*Channel 1 if max length(line) < max
*Channel 2 if max length(line) > max

The collected informations about the processed pastes
(number of lines and maximum length line) are stored in Redis.

..note:: Module ZMQ_Something_Q and ZMQ_Something are closely bound, always put
the same Subscriber name in both of them.

Requirements
------------

*Need running Redis instances. (LevelDB & Redis)
*Need the ZMQ_PubSub_Line_Q Module running to be able to work properly.

"""
import redis
import time
from packages import Paste
from pubsublogger import publisher

import Helper

if __name__ == "__main__":
    publisher.channel = "Script"

    config_section = 'PubSub_Global'
    config_channel = 'channel'
    subscriber_name = 'attributes'

    h = Helper.Redis_Queues(config_section, config_channel, subscriber_name)

    # Subscriber
    h.zmq_sub(config_section)

    # REDIS #
    r_serv = redis.StrictRedis(
        host=h.config.get("Redis_Data_Merging", "host"),
        port=h.config.getint("Redis_Data_Merging", "port"),
        db=h.config.getint("Redis_Data_Merging", "db"))

    # FUNCTIONS #
    publisher.info("""ZMQ Attribute is Running""")

    while True:
        try:
            message = h.redis_rpop()

            if message is not None:
                PST = Paste.Paste(message.split(" ", -1)[-1])
            else:
                if h.redis_queue_shutdown():
                    print "Shutdown Flag Up: Terminating"
                    publisher.warning("Shutdown Flag Up: Terminating.")
                    break
                publisher.debug("Script Attribute is idling 10s")
                time.sleep(10)
                continue

            encoding = PST._get_p_encoding()
            language = PST._get_p_language()

            PST.save_attribute_redis(r_serv, "p_encoding", encoding)
            PST.save_attribute_redis(r_serv, "p_language", language)

            r_serv.sadd("Pastes_Objects", PST.p_path)

            PST.save_all_attributes_redis(r_serv)
        except IOError:
            print "CRC Checksum Failed on :", PST.p_path
            publisher.error('{0};{1};{2};{3};{4}'.format(
                "Duplicate", PST.p_source, PST.p_date, PST.p_name,
                "CRC Checksum Failed"))