def test_float_traits(self):
model = models.Trait("Foo", models.Trait.FLOAT_TYPE, 123.456)
self._verify_data(model, sql_models.TraitFloat)
def get_events(self, event_filter, limit=None):
"""Return an iterable of model.Event objects.
:param event_filter: EventFilter instance
"""
if limit == 0:
return
session = self._engine_facade.get_session()
with session.begin():
# Build up the join conditions
event_join_conditions = [
models.EventType.id == models.Event.event_type_id
]
if event_filter.event_type:
event_join_conditions.append(
models.EventType.desc == event_filter.event_type)
# Build up the where conditions
event_filter_conditions = []
if event_filter.message_id:
event_filter_conditions.append(
models.Event.message_id == event_filter.message_id)
if event_filter.start_timestamp:
event_filter_conditions.append(
models.Event.generated >= event_filter.start_timestamp)
if event_filter.end_timestamp:
event_filter_conditions.append(
models.Event.generated <= event_filter.end_timestamp)
trait_subq = None
# Build trait filter
if event_filter.traits_filter:
filters = list(event_filter.traits_filter)
trait_filter = filters.pop()
key = trait_filter.pop('key')
op = trait_filter.pop('op', 'eq')
trait_type, value = list(trait_filter.items())[0]
trait_subq, t_model = _build_trait_query(
session, trait_type, key, value, op)
for trait_filter in filters:
key = trait_filter.pop('key')
op = trait_filter.pop('op', 'eq')
trait_type, value = list(trait_filter.items())[0]
q, model = _build_trait_query(session, trait_type, key,
value, op)
trait_subq = trait_subq.filter(
q.filter(model.event_id == t_model.event_id).exists())
trait_subq = trait_subq.subquery()
query = (session.query(models.Event.id).join(
models.EventType, sa.and_(*event_join_conditions)))
if trait_subq is not None:
query = query.join(trait_subq,
trait_subq.c.ev_id == models.Event.id)
if event_filter_conditions:
query = query.filter(sa.and_(*event_filter_conditions))
query = query.order_by(models.Event.generated).limit(limit)
event_list = {}
# get a list of all events that match filters
for (id_, generated, message_id, desc, raw) in query.add_columns(
models.Event.generated, models.Event.message_id,
models.EventType.desc, models.Event.raw).all():
event_list[id_] = api_models.Event(message_id, desc, generated,
[], raw)
# Query all traits related to events.
# NOTE (gordc): cast is done because pgsql defaults to TEXT when
# handling unknown values such as null.
trait_q = (session.query(
models.TraitDatetime.event_id, models.TraitDatetime.key,
models.TraitDatetime.value, sa.cast(sa.null(), sa.Integer),
sa.cast(sa.null(), sa.Float(53)),
sa.cast(sa.null(), sa.String(255))).filter(sa.exists().where(
models.TraitDatetime.event_id == query.subquery().c.id))
).union_all(
session.query(models.TraitInt.event_id,
models.TraitInt.key, sa.null(),
models.TraitInt.value, sa.null(),
sa.null()).filter(sa.exists().where(
models.TraitInt.event_id ==
query.subquery().c.id)),
session.query(models.TraitFloat.event_id,
models.TraitFloat.key, sa.null(),
sa.null(), models.TraitFloat.value,
sa.null()).filter(sa.exists().where(
models.TraitFloat.event_id ==
query.subquery().c.id)),
session.query(models.TraitText.event_id,
models.TraitText.key, sa.null(),
sa.null(), sa.null(),
models.TraitText.value).filter(
sa.exists().where(
models.TraitText.event_id ==
query.subquery().c.id)))
for id_, key, t_date, t_int, t_float, t_text in (trait_q.order_by(
models.TraitDatetime.key)).all():
if t_int is not None:
dtype = api_models.Trait.INT_TYPE
val = t_int
elif t_float is not None:
dtype = api_models.Trait.FLOAT_TYPE
val = t_float
elif t_date is not None:
dtype = api_models.Trait.DATETIME_TYPE
val = t_date
else:
dtype = api_models.Trait.TEXT_TYPE
val = t_text
trait_model = api_models.Trait(key, dtype, val)
event_list[id_].append_trait(trait_model)
return event_list.values()
def test_int_traits(self):
model = models.Trait("Foo", models.Trait.INT_TYPE, 100)
self._verify_data(model, sql_models.TraitInt)
def get_events(self, event_filter):
"""Return an iterable of model.Event objects.
:param event_filter: EventFilter instance
"""
start = event_filter.start_time
end = event_filter.end_time
session = self._engine_facade.get_session()
LOG.debug(_("Getting events that match filter: %s") % event_filter)
with session.begin():
event_query = session.query(models.Event)
# Build up the join conditions
event_join_conditions = [
models.EventType.id == models.Event.event_type_id
]
if event_filter.event_type:
event_join_conditions.append(
models.EventType.desc == event_filter.event_type)
event_query = event_query.join(models.EventType,
sa.and_(*event_join_conditions))
# Build up the where conditions
event_filter_conditions = []
if event_filter.message_id:
event_filter_conditions.append(
models.Event.message_id == event_filter.message_id)
if start:
event_filter_conditions.append(models.Event.generated >= start)
if end:
event_filter_conditions.append(models.Event.generated <= end)
if event_filter_conditions:
event_query = (event_query.filter(
sa.and_(*event_filter_conditions)))
event_models_dict = {}
if event_filter.traits_filter:
for trait_filter in event_filter.traits_filter:
# Build a sub query that joins Trait to TraitType
# where the trait name matches
trait_name = trait_filter.pop('key')
op = trait_filter.pop('op', 'eq')
conditions = [
models.Trait.trait_type_id == models.TraitType.id,
models.TraitType.desc == trait_name
]
for key, value in six.iteritems(trait_filter):
sql_utils.trait_op_condition(conditions, key, value,
op)
trait_query = (session.query(models.Trait.event_id).join(
models.TraitType, sa.and_(*conditions)).subquery())
event_query = (event_query.join(
trait_query,
models.Event.id == trait_query.c.event_id))
else:
# If there are no trait filters, grab the events from the db
query = (session.query(models.Event.id, models.Event.generated,
models.Event.message_id,
models.EventType.desc).join(
models.EventType,
sa.and_(*event_join_conditions)))
if event_filter_conditions:
query = query.filter(sa.and_(*event_filter_conditions))
for (id_, generated, message_id, desc_) in query.all():
event_models_dict[id_] = api_models.Event(
message_id, desc_, generated, [])
# Build event models for the events
event_query = event_query.subquery()
query = (session.query(models.Trait).join(
models.TraitType,
models.Trait.trait_type_id == models.TraitType.id).join(
event_query, models.Trait.event_id == event_query.c.id))
# Now convert the sqlalchemy objects back into Models ...
for trait in query.all():
event = event_models_dict.get(trait.event_id)
if not event:
event = api_models.Event(trait.event.message_id,
trait.event.event_type.desc,
trait.event.generated, [])
event_models_dict[trait.event_id] = event
trait_model = api_models.Trait(trait.trait_type.desc,
trait.trait_type.data_type,
trait.get_value())
event.append_trait(trait_model)
event_models = event_models_dict.values()
return sorted(event_models, key=operator.attrgetter('generated'))
