Source code for ceilometer.publisher.udp

#
# Copyright 2013 eNovance
#
# Author: Julien Danjou <julien@danjou.info>,
#         Tyaptin Ilya <ityaptin@mirantis.com>
#
# 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.
"""Publish a sample using an UDP mechanism
"""

import socket

import msgpack
from oslo.config import cfg
from oslo.utils import netutils

from ceilometer.openstack.common.gettextutils import _
from ceilometer.openstack.common import log
from ceilometer import publisher
from ceilometer.publisher import utils

cfg.CONF.import_opt('udp_port', 'ceilometer.collector',
                    group='collector')

LOG = log.getLogger(__name__)


[docs]class UDPPublisher(publisher.PublisherBase): def __init__(self, parsed_url): self.host, self.port = netutils.parse_host_port( parsed_url.netloc, default_port=cfg.CONF.collector.udp_port) self.socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
[docs] def publish_samples(self, context, samples): """Send a metering message for publishing :param context: Execution context from the service or RPC call :param samples: Samples from pipeline after transformation """ for sample in samples: msg = utils.meter_message_from_counter( sample, cfg.CONF.publisher.metering_secret) host = self.host port = self.port LOG.debug(_("Publishing sample %(msg)s over UDP to " "%(host)s:%(port)d") % {'msg': msg, 'host': host, 'port': port}) try: self.socket.sendto(msgpack.dumps(msg), (self.host, self.port)) except Exception as e: LOG.warn(_("Unable to send sample over UDP")) LOG.exception(e)