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Merge pull request #8 from adulau/master
Indexer module added - initial version with Whoosh full-text indexer
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commit
30640ab3c6
3 changed files with 155 additions and 0 deletions
92
bin/ZMQ_Sub_Indexer.py
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92
bin/ZMQ_Sub_Indexer.py
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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 Module
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============================
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The ZMQ_Sub_Indexer modules is fetching the list of files to be processed
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and index each file with a full-text indexer (Whoosh until now).
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"""
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import redis, zmq, ConfigParser, time
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from packages import Paste as P
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from packages import ZMQ_PubSub
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from pubsublogger import publisher
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from whoosh.index import create_in, exists_in, open_dir
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from whoosh.fields import *
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import os
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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_serv1 = 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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# Indexer configuration - index dir and schema setup
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indexpath = cfg.get("Indexer", "path")
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indexertype = cfg.get("Indexer", "type")
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if indexertype == "whoosh":
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schema = Schema(title=TEXT(stored=True), path=ID(stored=True,unique=True), content=TEXT)
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if not os.path.exists(indexpath):
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os.mkdir(indexpath)
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if not exists_in(indexpath):
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ix = create_in(indexpath, schema)
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else:
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ix = open_dir(indexpath)
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# LOGGING #
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publisher.channel = "Script"
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# ZMQ #
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#Subscriber
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channel = cfg.get("PubSub_Global", "channel")
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subscriber_name = "indexer"
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subscriber_config_section = "PubSub_Global"
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Sub = ZMQ_PubSub.ZMQSub(configfile, subscriber_config_section, channel, subscriber_name)
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# FUNCTIONS #
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publisher.info("""ZMQ Indexer is Running""")
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while True:
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try:
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message = Sub.get_msg_from_queue(r_serv1)
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if message != None:
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PST = P.Paste(message.split(" ",-1)[-1])
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else:
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if r_serv1.sismember("SHUTDOWN_FLAGS", "Indexer"):
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r_serv1.srem("SHUTDOWN_FLAGS", "Indexer")
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publisher.warning("Shutdown Flag Up: Terminating.")
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break
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publisher.debug("Script Indexer is idling 10s")
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time.sleep(1)
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continue
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docpath = message.split(" ",-1)[-1]
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paste = PST.get_p_content()
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print "Indexing :", docpath
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if indexertype == "whoosh":
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indexwriter = ix.writer()
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indexwriter.update_document(title=unicode(docpath, errors='ignore'),path=unicode(docpath, errors='ignore'),content=unicode(paste, errors='ignore'))
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indexwriter.commit()
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except IOError:
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print "CRC Checksum Failed on :", PST.p_path
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publisher.error('{0};{1};{2};{3};{4}'.format("Duplicate", PST.p_source, PST.p_date, PST.p_name, "CRC Checksum Failed" ))
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pass
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if __name__ == "__main__":
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main()
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58
bin/ZMQ_Sub_Indexer_Q.py
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bin/ZMQ_Sub_Indexer_Q.py
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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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@ -59,3 +59,8 @@ adress = tcp://127.0.0.1:5003
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[PubSub_Url]
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adress = tcp://127.0.0.1:5004
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channel = urls
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# Indexer configuration
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[Indexer]
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type = whoosh
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path = /home/user/indexdir
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