5 from collections import defaultdict
6 from django.db.models import F, Q
7 from planetstack.config import Config
8 from util.logger import Logger, logging
9 from observer.syncstep import SyncStep
10 from hpc.models import ServiceProvider, ContentProvider, CDNPrefix, OriginServer
11 from core.models import *
13 # hpclibrary will be in steps/..
14 parentdir = os.path.join(os.path.dirname(__file__),"..")
15 sys.path.insert(0,parentdir)
17 from hpclib import HpcLibrary
19 logger = Logger(level=logging.INFO)
21 class GarbageCollector(SyncStep, HpcLibrary):
22 # requested_interval = 86400
23 requested_interval = 0
26 def __init__(self, **args):
27 SyncStep.__init__(self, **args)
28 HpcLibrary.__init__(self)
30 def call(self, **args):
31 logger.info("running garbage collector")
33 self.gc_originservers()
35 self.gc_contentproviders()
36 self.gc_serviceproviders()
40 def gc_onev(self, ps_class, ps_idField, onev_className, onev_idField):
41 # get the CMI's objects
42 onev_objs = self.client.onev.ListAll(onev_className)
44 # get the data model's objects,
45 ps_objs = ps_class.objects.filter(enacted__isnull=False)
46 ps_ids = [str(getattr(x,ps_idField,None)) for x in ps_objs]
48 # for each onev object, if it's id does not exist in a data model
49 # object, then delete it.
50 for onev_obj in onev_objs:
51 onev_id = onev_obj[onev_idField]
52 if str(onev_id) not in ps_ids:
53 logger.info("garbage collecting %s %s" % (onev_className, str(onev_id)))
54 self.client.onev.Delete(onev_className, onev_id)
56 def gc_originservers(self):
57 self.gc_onev(OriginServer, "origin_server_id", "OriginServer", "origin_server_id")
59 def gc_cdnprefixes(self):
60 self.gc_onev(CDNPrefix, "cdn_prefix_id", "CDNPrefix", "cdn_prefix_id")
62 def gc_contentproviders(self):
63 self.gc_onev(ContentProvider, "content_provider_id", "ContentProvider", "content_provider_id")
65 def gc_serviceproviders(self):
66 self.gc_onev(ServiceProvider, "service_provider_id", "ServiceProvider", "service_provider_id")