# Copyright 2021-2023 H2020 TeraFlow (https://www.teraflow-h2020.eu/)
#
# 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.
import os,grpc, logging
import socket
from prometheus_client import Summary
from prometheus_client import Counter
from common.Settings import get_setting
from monitoring.Config import DEVICE_GRPC_SERVICE_PORT, DEVICE_SERVICE_HOST
from monitoring.proto.kpi_sample_types_pb2 import KpiSampleType
from monitoring.service import SqliteTools, InfluxTools
from monitoring.proto import monitoring_pb2
from monitoring.proto import monitoring_pb2_grpc
from common.rpc_method_wrapper.ServiceExceptions import ServiceException
from context.proto import context_pb2
from device.client.DeviceClient import DeviceClient
from device.proto import device_pb2
LOGGER = logging.getLogger(__name__)
MONITORING_GETINSTANTKPI_REQUEST_TIME = Summary('monitoring_getinstantkpi_processing_seconds', 'Time spent processing monitoring instant kpi request')
MONITORING_INCLUDEKPI_COUNTER = Counter('monitoring_includekpi_counter', 'Monitoring include kpi request counter')
INFLUXDB_HOSTNAME = os.environ.get("INFLUXDB_HOSTNAME")
INFLUXDB_USER = os.environ.get("INFLUXDB_USER")
INFLUXDB_PASSWORD = os.environ.get("INFLUXDB_PASSWORD")
INFLUXDB_DATABASE = os.environ.get("INFLUXDB_DATABASE")
DEVICE_SERVICE_HOST = get_setting('DEVICESERVICE_SERVICE_HOST', default=DEVICE_SERVICE_HOST )
DEVICE_SERVICE_PORT = get_setting('DEVICESERVICE_SERVICE_PORT_GRPC', default=DEVICE_GRPC_SERVICE_PORT)
class MonitoringServiceServicerImpl(monitoring_pb2_grpc.MonitoringServiceServicer):
def __init__(self):
LOGGER.info('Init monitoringService')
# Init sqlite monitoring db
self.sql_db = SqliteTools.SQLite('monitoring.db')
self.deviceClient = DeviceClient(address=DEVICE_SERVICE_HOST, port=DEVICE_GRPC_SERVICE_PORT) # instantiate the client
# Create influx_db client
self.influx_db = InfluxTools.Influx(INFLUXDB_HOSTNAME,"8086",INFLUXDB_USER,INFLUXDB_PASSWORD,INFLUXDB_DATABASE)
# CreateKpi (CreateKpiRequest) returns (KpiId) {}
def CreateKpi(self, request : monitoring_pb2.KpiDescriptor, grpc_context : grpc.ServicerContext) -> monitoring_pb2.KpiId :
# CREATEKPI_COUNTER_STARTED.inc()
LOGGER.info('CreateKpi')
try:
# Here the code to create a sqlite query to crete a KPI and return a KpiID
kpi_id = monitoring_pb2.KpiId()
kpi_description = request.kpi_description
kpi_sample_type = request.kpi_sample_type
kpi_device_id = request.device_id.device_uuid.uuid
kpi_endpoint_id = request.endpoint_id.endpoint_uuid.uuid
kpi_service_id = request.service_id.service_uuid.uuid
data = self.sql_db.insert_KPI(kpi_description, kpi_sample_type, kpi_device_id, kpi_endpoint_id, kpi_service_id)
kpi_id.kpi_id.uuid = str(data)
# CREATEKPI_COUNTER_COMPLETED.inc()
return kpi_id
except ServiceException as e:
LOGGER.exception('CreateKpi exception')
# CREATEKPI_COUNTER_FAILED.inc()
grpc_context.abort(e.code, e.details)
except Exception as e: # pragma: no cover
LOGGER.exception('CreateKpi exception')
# CREATEKPI_COUNTER_FAILED.inc()
grpc_context.abort(grpc.StatusCode.INTERNAL, str(e))
# rpc MonitorKpi (MonitorKpiRequest) returns (context.Empty) {}
def MonitorKpi ( self, request : monitoring_pb2.MonitorKpiRequest, grpc_context : grpc.ServicerContext) -> context_pb2.Empty:
LOGGER.info('MonitorKpi')
try:
# Creates the request to send to the device service
monitor_device_request = device_pb2.MonitoringSettings()
kpiDescriptor = self.GetKpiDescriptor(request.kpi_id, grpc_context)
monitor_device_request.kpi_descriptor.CopyFrom(kpiDescriptor)
monitor_device_request.kpi_id.kpi_id.uuid = request.kpi_id.kpi_id.uuid
monitor_device_request.sampling_duration_s = request.sampling_duration_s
monitor_device_request.sampling_interval_s = request.sampling_interval_s
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if s.connect_ex((DEVICE_SERVICE_HOST, DEVICE_GRPC_SERVICE_PORT)) == 0:
self.deviceClient.MonitorDeviceKpi(monitor_device_request)
else:
LOGGER.warning('Device service is not reachable')
return context_pb2.Empty()
except ServiceException as e:
LOGGER.exception('MonitorKpi exception')
# CREATEKPI_COUNTER_FAILED.inc()
grpc_context.abort(e.code, e.details)
except Exception as e: # pragma: no cover
LOGGER.exception('MonitorKpi exception')
# CREATEKPI_COUNTER_FAILED.inc()
# rpc IncludeKpi(IncludeKpiRequest) returns(context.Empty) {}
def IncludeKpi(self, request : monitoring_pb2.Kpi, grpc_context : grpc.ServicerContext) -> context_pb2.Empty:
LOGGER.info('IncludeKpi')
try:
kpiDescriptor = self.GetKpiDescriptor(request.kpi_id, grpc_context)
if kpiDescriptor is None:
LOGGER.warning('Ignoring sample with KPIId({:s}): not found in database'.format(str(request.kpi_id)))
return context_pb2.Empty()
kpiSampleType = KpiSampleType.Name(kpiDescriptor.kpi_sample_type).upper().replace('KPISAMPLETYPE_', '')
kpiId = request.kpi_id.kpi_id.uuid
deviceId = kpiDescriptor.device_id.device_uuid.uuid
endpointId = kpiDescriptor.endpoint_id.endpoint_uuid.uuid
serviceId = kpiDescriptor.service_id.service_uuid.uuid
time_stamp = request.timestamp
kpi_value = getattr(request.kpi_value, request.kpi_value.WhichOneof('value'))
# Build the structure to be included as point in the influxDB
self.influx_db.write_KPI(time_stamp,kpiId,kpiSampleType,deviceId,endpointId,serviceId,kpi_value)
#self.influx_db.read_KPI_points()
except ServiceException as e:
LOGGER.exception('IncludeKpi exception')
# CREATEKPI_COUNTER_FAILED.inc()
grpc_context.abort(e.code, e.details)
except Exception as e: # pragma: no cover
LOGGER.exception('IncludeKpi exception')
# CREATEKPI_COUNTER_FAILED.inc()
return context_pb2.Empty()
def GetStreamKpi ( self, request, grpc_context : grpc.ServicerContext):
# receives monitoring.KpiId returns stream monitoring.Kpi
LOGGER.info('GetStreamKpi')
yield monitoring_pb2.Kpi()
@MONITORING_GETINSTANTKPI_REQUEST_TIME.time()
def GetInstantKpi ( self, request, grpc_context : grpc.ServicerContext):
# receives monitoring.KpiId returns monitoring.Kpi
LOGGER.info('GetInstantKpi')
return monitoring_pb2.Kpi()
def GetKpiDescriptor(self, request : monitoring_pb2.KpiId, grpc_context : grpc.ServicerContext) -> monitoring_pb2.KpiDescriptor:
LOGGER.info('getting Kpi by KpiID')
try:
kpi_db = self.sql_db.get_KPI(int(request.kpi_id.uuid))
#LOGGER.info('sql_db.get_KPIS={:s}'.format(str(self.sql_db.get_KPIS())))
#LOGGER.info('kpi_db={:s}'.format(str(kpi_db)))
if kpi_db is None: return None
kpiDescriptor = monitoring_pb2.KpiDescriptor()
kpiDescriptor.kpi_description = kpi_db[1]
kpiDescriptor.kpi_sample_type = kpi_db[2]
kpiDescriptor.device_id.device_uuid.uuid = str(kpi_db[3])
kpiDescriptor.endpoint_id.endpoint_uuid.uuid = str(kpi_db[4])
kpiDescriptor.service_id.service_uuid.uuid = str(kpi_db[5])
return kpiDescriptor
except ServiceException as e:
LOGGER.exception('GetKpiDescriptor exception')
grpc_context.abort(e.code, e.details)
except Exception as e: # pragma: no cover
LOGGER.exception('GetKpiDescriptor exception')