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Diffstat (limited to 'app/discover/events/event_delete_base.py')
-rw-r--r-- | app/discover/events/event_delete_base.py | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/app/discover/events/event_delete_base.py b/app/discover/events/event_delete_base.py new file mode 100644 index 0000000..1cf94c3 --- /dev/null +++ b/app/discover/events/event_delete_base.py @@ -0,0 +1,60 @@ +############################################################################### +# Copyright (c) 2017 Koren Lev (Cisco Systems), Yaron Yogev (Cisco Systems) # +# and others # +# # +# All rights reserved. This program and the accompanying materials # +# are made available under the terms of the Apache License, Version 2.0 # +# which accompanies this distribution, and is available at # +# http://www.apache.org/licenses/LICENSE-2.0 # +############################################################################### +import re + +from bson.objectid import ObjectId + +from discover.clique_finder import CliqueFinder +from discover.events.event_base import EventBase, EventResult + + +class EventDeleteBase(EventBase): + + def delete_handler(self, env, object_id, object_type) -> EventResult: + item = self.inv.get_by_id(env, object_id) + if not item: + self.log.info('{0} document is not found, aborting {0} delete'.format(object_type)) + return EventResult(result=False, retry=False) + + db_id = ObjectId(item['_id']) + id_path = item['id_path'] + '/' + + # remove related clique + clique_finder = CliqueFinder() + self.inv.delete('cliques', {'focal_point': db_id}) + + # keep related links to do rebuild of cliques using them + matched_links_source = clique_finder.find_links_by_source(db_id) + matched_links_target = clique_finder.find_links_by_target(db_id) + + links_using_object = [] + links_using_object.extend([l['_id'] for l in matched_links_source]) + links_using_object.extend([l['_id'] for l in matched_links_target]) + + # find cliques using these links + if links_using_object: + matched_cliques = clique_finder.find_cliques_by_link(links_using_object) + # find cliques using these links and rebuild them + for clique in matched_cliques: + clique_finder.rebuild_clique(clique) + + # remove all related links + self.inv.delete('links', {'source': db_id}) + self.inv.delete('links', {'target': db_id}) + + # remove object itself + self.inv.delete('inventory', {'_id': db_id}) + + # remove children + regexp = re.compile('^' + id_path) + self.inv.delete('inventory', {'id_path': {'$regex': regexp}}) + return EventResult(result=True, + related_object=object_id, + display_context=object_id) |