AIL-framework/bin/Global.py

#!/usr/bin/env python
# -*-coding:UTF-8 -*
"""
The ZMQ_Feed_Q Module
=====================

This module is consuming the Redis-list created by the ZMQ_Feed_Q Module,
And save the paste on disk to allow others modules to work on them.

..todo:: Be able to choose to delete or not the saved paste after processing.
..todo:: Store the empty paste (unprocessed) somewhere 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.
*Need the ZMQ_Feed_Q Module running to be able to work properly.

"""
import base64
import os
import time
from pubsublogger import publisher

from Helper import Process


if __name__ == '__main__':
    publisher.port = 6380
    publisher.channel = 'Script'

    config_section = 'Global'

    p = Process(config_section)

    # LOGGING #
    publisher.info("Feed Script started to receive & publish.")

    while True:

        message = p.get_from_set()
        # Recovering the streamed message informations.
        if message is not None:
            splitted = message.split()
            if len(splitted) == 2:
                paste, gzip64encoded = splitted
            else:
                # TODO Store the name of the empty paste inside a Redis-list.
                print "Empty Paste: not processed"
                publisher.debug("Empty Paste: {0} not processed".format(paste))
                continue
        else:
            print "Empty Queues: Waiting..."
            time.sleep(1)
            continue
        # Creating the full filepath
        filename = os.path.join(os.environ['AIL_HOME'],
                                p.config.get("Directories", "pastes"), paste)
        dirname = os.path.dirname(filename)
        if not os.path.exists(dirname):
            os.makedirs(dirname)

        with open(filename, 'wb') as f:
            f.write(base64.standard_b64decode(gzip64encoded))
        p.populate_set_out(filename)