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##############################################################################
# Copyright (c) 2016 Huawei Technologies Co.,Ltd 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 logging
from urlparse import urlsplit
from influxdb import InfluxDBClient
import ConfigParser
from api import conf
logger = logging.getLogger(__name__)
def get_data_db_client():
parser = ConfigParser.ConfigParser()
try:
parser.read(conf.OUTPUT_CONFIG_FILE_PATH)
dispatcher = parser.get('DEFAULT', 'dispatcher')
if 'influxdb' != dispatcher:
raise RuntimeError
ip = _get_ip(parser.get('dispatcher_influxdb', 'target'))
username = parser.get('dispatcher_influxdb', 'username')
password = parser.get('dispatcher_influxdb', 'password')
db_name = parser.get('dispatcher_influxdb', 'db_name')
return InfluxDBClient(ip, conf.PORT, username, password, db_name)
except ConfigParser.NoOptionError:
logger.error('can not find the key')
raise
def _get_ip(url):
return urlsplit(url).hostname
def _write_data(measurement, field, timestamp, tags):
point = {
'measurement': measurement,
'fields': field,
'time': timestamp,
'tags': tags
}
try:
client = get_data_db_client()
logger.debug('Start to write data: %s', point)
client.write_points([point])
except RuntimeError:
logger.debug('dispatcher is not influxdb')
def write_data_tasklist(task_id, timestamp, status, error=''):
field = {'status': status, 'error': error}
tags = {'task_id': task_id}
_write_data('tasklist', field, timestamp, tags)
def query(query_sql):
try:
client = get_data_db_client()
logger.debug('Start to query: %s', query_sql)
return list(client.query(query_sql).get_points())
except RuntimeError:
logger.error('dispatcher is not influxdb')
raise
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