Implement fact caching service and mongo reference handler

awx/main/management/commands/run_fact_cache_receiver.py

@@ -4,13 +4,35 @@
 import logging
 
 from django.core.management.base import NoArgsCommand
+from django.utils.timezone import now
 
 from awx.main.models import * # noqa
+from awx.main.socket import Socket
+
+from pymongo import MongoClient
 
 logger = logging.getLogger('awx.main.commands.run_fact_cache_receiver')
 
 class FactCacheReceiver(object):
-    pass
+
+    def __init__(self):
+        self.client = MongoClient('localhost', 27017)
+
+    def process_fact_message(self, message):
+        host = message['host']
+        facts = message['facts']
+        host_db = self.client.host_facts
+        host_collection = host_db[host]
+        facts.update(dict(tower_host=host, datetime=now()))
+        host_collection.insert(facts)
+
+    def run_receiver(self):
+        with Socket('fact_cache', 'r') as facts:
+            for message in facts.listen():
+                print("Message received: " + str(message))
+                if 'host' not in message or 'facts' not in message:
+                    continue
+                self.process_fact_message(message)
 
 class Command(NoArgsCommand):
     '''