Source code for ceilometer.publisher.udp

#
# Copyright 2013 eNovance
#
# 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_log import log
from oslo_utils import netutils

import ceilometer
from ceilometer.i18n import _, _LW
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) addrinfo = None try: addrinfo = socket.getaddrinfo(self.host, None, socket.AF_INET6, socket.SOCK_DGRAM)[0] except socket.gaierror: try: addrinfo = socket.getaddrinfo(self.host, None, socket.AF_INET, socket.SOCK_DGRAM)[0] except socket.gaierror: pass if addrinfo: addr_family = addrinfo[0] else: LOG.warning(_LW( "Cannot resolve host %s, creating AF_INET socket..."), self.host) addr_family = socket.AF_INET self.socket = socket.socket(addr_family, socket.SOCK_DGRAM)
[docs] def publish_samples(self, samples): """Send a metering message for publishing :param samples: Samples from pipeline after transformation """ for sample in samples: msg = utils.meter_message_from_counter( sample, cfg.CONF.publisher.telemetry_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.warning(_("Unable to send sample over UDP")) LOG.exception(e)
[docs] def publish_events(self, events): """Send an event message for publishing :param events: events from pipeline after transformation """ raise ceilometer.NotImplementedError

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