def _send(self, priority, msg): addr_opts = { "create": "always", "node": { "type": "topic", "x-declare": { "durable": False, # auto-delete isn't implemented for exchanges in qpid, # but put in here anyway "auto-delete": True, }, }, } topic = "%s.%s" % (CONF.qpid_notification_topic, priority) address = "%s/%s ; %s" % (CONF.qpid_notification_exchange, topic, json.dumps(addr_opts)) connection = None try: connection = self._open_connection() session = connection.session() sender = session.sender(address) primitive_msg = jsonutils.to_primitive(msg) qpid_msg = qpid.messaging.Message(content=primitive_msg) sender.send(qpid_msg) except Exception: details = dict(priority=priority, msg=msg) LOG.exception(_('Notification error. Priority: %(priority)s ' 'Message: %(msg)s') % details) raise finally: if connection and connection.opened(): connection.close()
def notify(context, publisher_id, event_type, priority, payload): """Sends a notification using the specified driver :param publisher_id: the source worker_type.host of the message :param event_type: the literal type of event (ex. Instance Creation) :param priority: patterned after the enumeration of Python logging levels in the set (DEBUG, WARN, INFO, ERROR, CRITICAL) :param payload: A python dictionary of attributes Outgoing message format includes the above parameters, and appends the following: message_id a UUID representing the id for this notification timestamp the GMT timestamp the notification was sent at The composite message will be constructed as a dictionary of the above attributes, which will then be sent via the transport mechanism defined by the driver. Message example:: {'message_id': str(uuid.uuid4()), 'publisher_id': 'compute.host1', 'timestamp': timeutils.utcnow(), 'priority': 'WARN', 'event_type': 'compute.create_instance', 'payload': {'instance_id': 12, ... }} """ if priority not in log_levels: raise BadPriorityException(_("%s not in valid priorities") % priority) # Ensure everything is JSON serializable. payload = jsonutils.to_primitive(payload, convert_instances=True) msg = dict( message_id=str(uuid.uuid4()), publisher_id=publisher_id, event_type=event_type, priority=priority, payload=payload, timestamp=str(timeutils.utcnow()), ) for driver in _get_drivers(): try: driver.notify(context, msg) except Exception as e: LOG.exception( _("Problem '%(e)s' attempting to " "send to notification system. " "Payload=%(payload)s") % dict(e=e, payload=payload) )
def notify(context, publisher_id, event_type, priority, payload): """Sends a notification using the specified driver :param publisher_id: the source worker_type.host of the message :param event_type: the literal type of event (ex. Instance Creation) :param priority: patterned after the enumeration of Python logging levels in the set (DEBUG, WARN, INFO, ERROR, CRITICAL) :param payload: A python dictionary of attributes Outgoing message format includes the above parameters, and appends the following: message_id a UUID representing the id for this notification timestamp the GMT timestamp the notification was sent at The composite message will be constructed as a dictionary of the above attributes, which will then be sent via the transport mechanism defined by the driver. Message example:: {'message_id': str(uuid.uuid4()), 'publisher_id': 'compute.host1', 'timestamp': timeutils.utcnow(), 'priority': 'WARN', 'event_type': 'compute.create_instance', 'payload': {'instance_id': 12, ... }} """ if priority not in log_levels: raise BadPriorityException(_('%s not in valid priorities') % priority) # Ensure everything is JSON serializable. payload = jsonutils.to_primitive(payload, convert_instances=True) msg = dict(message_id=str(uuid.uuid4()), publisher_id=publisher_id, event_type=event_type, priority=priority, payload=payload, timestamp=str(timeutils.utcnow())) for driver in _get_drivers(): try: driver.notify(context, msg) except Exception as e: LOG.exception( _("Problem '%(e)s' attempting to " "send to notification system. " "Payload=%(payload)s") % dict(e=e, payload=payload))