def delete_archive_policy(self, name):
with self.facade.writer() as session:
try:
if session.query(ArchivePolicy).filter(
ArchivePolicy.name == name).delete() == 0:
raise indexer.NoSuchArchivePolicy(name)
except exception.DBReferenceError as e:
if (e.constraint ==
'fk_metric_archive_policy_name_archive_policy_name'):
raise indexer.ArchivePolicyInUse(name)
raise
def update_archive_policy(self, name, ap_items):
with self.facade.independent_writer() as session:
ap = session.query(ArchivePolicy).get(name)
if not ap:
raise indexer.NoSuchArchivePolicy(name)
current = sorted(ap.definition,
key=operator.attrgetter('granularity'))
new = sorted(ap_items, key=operator.attrgetter('granularity'))
if len(current) != len(new):
raise indexer.UnsupportedArchivePolicyChange(
name, 'Cannot add or drop granularities')
for c, n in zip(current, new):
if c.granularity != n.granularity:
raise indexer.UnsupportedArchivePolicyChange(
name,
'%s granularity interval was changed' % c.granularity)
# NOTE(gordc): ORM doesn't update JSON column unless new
ap.definition = ap_items
return ap
def _set_metrics_for_resource(session, r, metrics):
for name, value in six.iteritems(metrics):
if isinstance(value, uuid.UUID):
try:
update = session.query(Metric).filter(
Metric.id == value,
Metric.status == 'active',
(Metric.created_by_user_id == r.created_by_user_id),
(Metric.created_by_project_id
== r.created_by_project_id),
).update({
"resource_id": r.id,
"name": name
})
except exception.DBDuplicateEntry:
raise indexer.NamedMetricAlreadyExists(name)
if update == 0:
raise indexer.NoSuchMetric(value)
else:
ap_name = value['archive_policy_name']
m = Metric(id=uuid.uuid4(),
created_by_user_id=r.created_by_user_id,
created_by_project_id=r.created_by_project_id,
archive_policy_name=ap_name,
name=name,
resource_id=r.id)
session.add(m)
try:
session.flush()
except exception.DBDuplicateEntry:
raise indexer.NamedMetricAlreadyExists(name)
except exception.DBReferenceError as e:
if (e.constraint ==
'fk_metric_archive_policy_name_archive_policy_name'
):
raise indexer.NoSuchArchivePolicy(ap_name)
raise
session.expire(r, ['metrics'])
def create_metric(self,
id,
created_by_user_id,
created_by_project_id,
archive_policy_name,
name=None,
resource_id=None):
m = Metric(id=id,
created_by_user_id=created_by_user_id,
created_by_project_id=created_by_project_id,
archive_policy_name=archive_policy_name,
name=name,
resource_id=resource_id)
try:
with self.facade.writer() as session:
session.add(m)
except exception.DBReferenceError as e:
if (e.constraint ==
'fk_metric_archive_policy_name_archive_policy_name'):
raise indexer.NoSuchArchivePolicy(archive_policy_name)
raise
return m