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, e:
LOG.exception(_("Problem '%(e)s' attempting to "
"send to notification system. "
"Payload=%(payload)s") % locals())
def __init__(self, user_id, tenant_id, is_admin=None, read_deleted="no",
roles=None, timestamp=None, **kwargs):
"""
:param read_deleted: 'no' indicates deleted records are hidden,
'yes' indicates deleted records are visible,
'only' indicates only deleted records are visible.
"""
self.user_id = user_id
self.tenant_id = tenant_id
self.roles = roles or []
self.is_admin = is_admin
if self.is_admin is None:
self.is_admin = 'admin' in [x.lower() for x in self.roles]
elif self.is_admin and 'admin' not in [x.lower() for x in self.roles]:
self.roles.append('admin')
self.read_deleted = read_deleted
if not timestamp:
timestamp = timeutils.utcnow()
self.timestamp = timestamp
self._session = None
def utcnow():
return timeutils.utcnow()
