This document describes the current stable version of Kombu (4.0). For development docs, go here.
Source code for kombu.transport.pyro
"""Pyro transport.
Requires the :mod:`Pyro4` library to be installed.
"""
from __future__ import absolute_import, unicode_literals
import sys
from kombu.five import reraise
from kombu.utils.objects import cached_property
from . import virtual
try:
import Pyro4 as pyro
from Pyro4.errors import NamingError
except ImportError: # pragma: no cover
pyro = NamingError = None # noqa
DEFAULT_PORT = 9090
E_LOOKUP = """\
Unable to locate pyro nameserver {0.virtual_host} on host {0.hostname}\
"""
[docs]class Channel(virtual.Channel):
"""Pyro Channel."""
def _new_queue(self, queue, **kwargs):
if queue not in self.queues():
self.shared_queues.new_queue(queue)
def _get(self, queue, timeout=None):
queue = self._queue_for(queue)
msg = self.shared_queues._get(queue)
return msg
def _queue_for(self, queue):
if queue not in self.queues():
self.shared_queues.new_queue(queue)
return queue
def _put(self, queue, message, **kwargs):
queue = self._queue_for(queue)
self.shared_queues._put(queue, message)
def _size(self, queue):
return self.shared_queues._size(queue)
def _delete(self, queue, *args, **kwargs):
self.shared_queues._delete(queue)
def _purge(self, queue):
return self.shared_queues._purge(queue)
@cached_property
[docs]class Transport(virtual.Transport):
"""Pyro Transport."""
Channel = Channel
#: memory backend state is global.
state = virtual.BrokerState()
default_port = DEFAULT_PORT
driver_type = driver_name = 'pyro'
def _open(self):
conninfo = self.client
pyro.config.HMAC_KEY = conninfo.virtual_host
try:
nameserver = pyro.locateNS(host=conninfo.hostname,
port=self.default_port)
# name of registered pyro object
uri = nameserver.lookup(conninfo.virtual_host)
return pyro.Proxy(uri)
except NamingError:
reraise(NamingError, NamingError(E_LOOKUP.format(conninfo)),
sys.exc_info()[2])
@cached_property