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# ================================================================================
# Copyright (c) 2019-2020 AT&T Intellectual Property. All rights reserved.
# ================================================================================
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ============LICENSE_END=========================================================
""" DB APIs to interact with application database using sqlAlchemy ORM lib and postgresSql driver"""
from sqlalchemy import and_
from sqlalchemy.orm.exc import NoResultFound
from .db_access import DbAccess
from ..models import Event, EventAck
class EventDbAccess(DbAccess):
def __init__(self):
DbAccess.__init__(self)
def query_event_item(self, target_type, target_name):
try:
query = self.session.query(Event).filter(Event.target_type == target_type).\
filter(Event.target_name == target_name)
evt = query.one()
except NoResultFound:
return None
else:
return evt
def query_event_data(self, target_type, target_name):
try:
query = self.session.query(Event).filter(Event.target_type == target_type).\
filter(Event.target_name == target_name)
evt = query.one()
except NoResultFound:
return []
else:
try:
ack_result = self.session.query(EventAck).filter(EventAck.event == evt).all()
except NoResultFound:
return []
else:
return ack_result
def query_event_data_k8s(self, target_type, target_name):
try:
query = self.session.query(Event).filter(Event.target_type == target_type).\
filter(Event.target_name == target_name)
evt = query.one()
except NoResultFound:
return []
else:
try:
ack_result = self.session.query(EventAck).filter(EventAck.event == evt).\
filter(EventAck.container_type != 'docker').all()
except NoResultFound:
return []
else:
return ack_result
def query_event_info_docker(self, prim_evt, service_component, deployment_id, container_id):
try:
query = self.session.query(EventAck).filter(EventAck.event == prim_evt).filter(
and_(EventAck.service_component == service_component,
EventAck.deployment_id == deployment_id,
EventAck.container_id == container_id,
EventAck.container_type == 'docker'))
evt = query.one()
except NoResultFound as nrf:
raise nrf
else:
return evt
def update_event_item(self, dti_event, target_type, target_name):
self.session.query(Event).filter(Event.target_type == target_type). \
filter(Event.target_name == target_name).update({Event.event:dti_event})
self.session.commit()
def query_raw_k8_events(self, cluster, pod, namespace):
"""
run an inner JOIN query to dtih_event and dtih_event_ack tables using supplied query predicates
:param cluster:
:param pod:
:param namespace:
:return:
Set of event objects related to k8s pods
"""
try:
return self.session.query(Event).filter(Event.dtih_event_id.in_(
self.session.query(EventAck.dtih_event_id).filter(and_(EventAck.k8s_cluster_fqdn == cluster,
EventAck.k8s_pod_id == pod,
EventAck.k8s_namespace == namespace)))).all()
except NoResultFound:
print("invalid query or no data")
return ()
def query_raw_docker_events(self, target_types, locations):
"""
run a query to dtih_event table using supplied query predicates
:param target_types: required
:param locations: optional
:return:
set of event objects related to docker container
"""
try:
if not locations or (len(locations) == 1 and locations[0] == ''):
return self.session.query(Event).filter(Event.target_type.in_(target_types)).all()
else:
return self.session.query(Event).filter(Event.target_type.in_(target_types)).filter(
Event.location_clli.in_(locations)).all()
except NoResultFound:
print("invalid query or no data")
return ()
def query_pod_info2(self, cluster):
try:
return self.session.query(EventAck).filter(EventAck.k8s_cluster_fqdn == cluster).all()
except NoResultFound:
print("invalid query or no data")
return ()
def query_pod_info(self, cluster):
try:
return self.session.query(EventAck.k8s_pod_id, EventAck.k8s_namespace,
EventAck.k8s_proxy_fqdn, EventAck.k8s_service_name,
EventAck.k8s_service_port)\
.filter(EventAck.k8s_cluster_fqdn == cluster) \
.distinct().order_by(EventAck.k8s_cluster_fqdn).all()
except NoResultFound:
print("invalid query or no data")
return ()
def query_event_data_k8s_pod(self, prim_evt, scn):
try:
query = self.session.query(EventAck).filter(EventAck.event == prim_evt).filter(
and_(EventAck.service_component == scn))
event_info = query.one()
except NoResultFound:
return None
else:
return event_info
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