def ping_host(topic, host):
context = flask.request.environ.get('context')
queue = rpc.queue_get_for(context, topic, host)
msg = {
'method': 'ping',
'args': {},
}
pong = rpc.call(context, queue, msg, timeout=10)
return flask.jsonify(pong)
def call(self, context, msg, topic=None, version=None, timeout=None):
"""rpc.call() a remote method.
:param context: The request context
:param msg: The message to send, including the method and args.
:param topic: Override the topic for this message.
:param timeout: (Optional) A timeout to use when waiting for the
response. If no timeout is specified, a default timeout will be
used that is usually sufficient.
:param version: (Optional) Override the requested API version in this
message.
:returns: The return value from the remote method.
"""
self._set_version(msg, version)
return rpc.call(context, self._get_topic(topic), msg, timeout)
def call(self, context, msg, topic=None, version=None, timeout=None):
"""rpc.call() a remote method.
:param context: The request context
:param msg: The message to send, including the method and args.
:param topic: Override the topic for this message.
:param timeout: (Optional) A timeout to use when waiting for the
response. If no timeout is specified, a default timeout will be
used that is usually sufficient.
:param version: (Optional) Override the requested API version in this
message.
:returns: The return value from the remote method.
"""
self._set_version(msg, version)
return rpc.call(context, self._get_topic(topic), msg, timeout)
def call(self, context, msg, topic=None, version=None, timeout=None):
"""rpc.call() a remote method.
:param context: The request context
:param msg: The message to send, including the method and args.
:param topic: Override the topic for this message.
:param version: (Optional) Override the requested API version in this
message.
:param timeout: (Optional) A timeout to use when waiting for the
response. If no timeout is specified, a default timeout will be
used that is usually sufficient.
:returns: The return value from the remote method.
"""
self._set_version(msg, version)
msg['args'] = self._serialize_msg_args(context, msg['args'])
real_topic = self._get_topic(topic)
try:
result = rpc.call(context, real_topic, msg, timeout)
return self.serializer.deserialize_entity(context, result)
except rpc.common.Timeout as exc:
raise rpc.common.Timeout(
exc.info, real_topic, msg.get('method'))
