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# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# SPDX-FileCopyrightText: 2023 Nicolas Hennion <nicolas@nicolargo.com>
#
# SPDX-License-Identifier: LGPL-3.0-only
#
"""MongoDB interface class."""
import sys
from glances.logger import logger
from glances.exports.export import GlancesExport
import pymongo
from urllib.parse import quote_plus
class Export(GlancesExport):
"""This class manages the MongoDB export module."""
def __init__(self, config=None, args=None):
"""Init the MongoDB export IF."""
super(Export, self).__init__(config=config, args=args)
# Mandatory configuration keys (additional to host and port)
self.db = None
# Optional configuration keys
self.user = None
self.password = None
# Load the Cassandra configuration file section
self.export_enable = self.load_conf('mongodb', mandatories=['host', 'port', 'db'], options=['user', 'password'])
if not self.export_enable:
sys.exit(2)
# Init the CouchDB client
self.client = self.init()
def init(self):
"""Init the connection to the CouchDB server."""
if not self.export_enable:
return None
server_uri = 'mongodb://%s:%s@%s:%s' % (quote_plus(self.user), quote_plus(self.password), self.host, self.port)
try:
client = pymongo.MongoClient(server_uri)
client.admin.command('ping')
except Exception as e:
logger.critical("Cannot connect to MongoDB server %s:%s (%s)" % (self.host, self.port, e))
sys.exit(2)
else:
logger.info("Connected to the MongoDB server")
return client
def database(self):
"""Return the CouchDB database object"""
return self.client[self.db]
def export(self, name, columns, points):
"""Write the points to the MongoDB server."""
logger.debug("Export {} stats to MongoDB".format(name))
# Create DB input
data = dict(zip(columns, points))
# Write data to the MongoDB database
try:
self.database()[name].insert_one(data)
except Exception as e:
logger.error("Cannot export {} stats to MongoDB ({})".format(name, e))
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