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-rw-r--r--app/discover/events/event_instance_update.py55
1 files changed, 55 insertions, 0 deletions
diff --git a/app/discover/events/event_instance_update.py b/app/discover/events/event_instance_update.py
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+++ b/app/discover/events/event_instance_update.py
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+###############################################################################
+# 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 discover.events.event_base import EventBase, EventResult
+from discover.events.event_instance_add import EventInstanceAdd
+from discover.events.event_instance_delete import EventInstanceDelete
+
+
+class EventInstanceUpdate(EventBase):
+
+ def handle(self, env, values):
+ # find the host, to serve as parent
+ payload = values['payload']
+ instance_id = payload['instance_id']
+ state = payload['state']
+ old_state = payload['old_state']
+
+ if state == 'building':
+ return EventResult(result=False, retry=False)
+
+ if state == 'active' and old_state == 'building':
+ return EventInstanceAdd().handle(env, values)
+
+ if state == 'deleted' and old_state == 'active':
+ return EventInstanceDelete().handle(env, values)
+
+ name = payload['display_name']
+ instance = self.inv.get_by_id(env, instance_id)
+ if not instance:
+ self.log.info('instance document not found, aborting instance update')
+ return EventResult(result=False, retry=True)
+
+ instance['name'] = name
+ instance['object_name'] = name
+ name_path = instance['name_path']
+ instance['name_path'] = name_path[:name_path.rindex('/') + 1] + name
+
+ # TBD: fix name_path for descendants
+ if name_path != instance['name_path']:
+ self.inv.values_replace({
+ "environment": env,
+ "name_path": {"$regex": r"^" + re.escape(name_path + '/')}},
+ {"name_path": {"from": name_path, "to": instance['name_path']}})
+ self.inv.set(instance)
+ return EventResult(result=True,
+ related_object=instance_id,
+ display_context=instance_id)