def delete_lease(self, lease_id):
lease = self.get_lease(lease_id)
if (datetime.datetime.utcnow() < lease['start_date'] or
datetime.datetime.utcnow() > lease['end_date']):
with trusts.create_ctx_from_trust(lease['trust_id']) as ctx:
for reservation in lease['reservations']:
plugin = self.plugins[reservation['resource_type']]
try:
plugin.on_end(reservation['resource_id'])
except (db_ex.ClimateDBException, RuntimeError):
error_msg = "Failed to delete a reservation for a lease."
lease_state = states.LeaseState(id=lease_id,
action=states.lease.DELETE,
status=states.lease.FAILED,
status_reason=error_msg)
lease_state.save()
LOG.exception(error_msg)
raise
db_api.lease_destroy(lease_id)
self._send_notification(lease, ctx, events=['delete'])
else:
error_msg = "Already started lease cannot be deleted"
lease_state = states.LeaseState(id=lease_id,
action=states.lease.DELETE,
status=states.lease.FAILED,
status_reason=error_msg)
lease_state.save()
raise common_ex.NotAuthorized(error_msg)
def delete_lease(self, lease_id):
lease = self.get_lease(lease_id)
if (datetime.datetime.utcnow() < lease['start_date']
or datetime.datetime.utcnow() > lease['end_date']):
with trusts.create_ctx_from_trust(lease['trust_id']) as ctx:
for reservation in lease['reservations']:
plugin = self.plugins[reservation['resource_type']]
try:
plugin.on_end(reservation['resource_id'])
except (db_ex.ClimateDBException, RuntimeError):
LOG.exception("Failed to delete a reservation "
"for a lease.")
raise
db_api.lease_destroy(lease_id)
self._send_notification(lease, ctx, events=['delete'])
else:
raise common_ex.NotAuthorized(
'Already started lease cannot be deleted')
def _check_date_within_lease_limits(self, date, lease):
if not lease['start_date'] < date < lease['end_date']:
raise common_ex.NotAuthorized(
'Datetime is out of lease limits')
def update_lease(self, lease_id, values):
if not values:
return db_api.lease_get(lease_id)
if len(values) == 1 and 'name' in values:
db_api.lease_update(lease_id, values)
return db_api.lease_get(lease_id)
lease = db_api.lease_get(lease_id)
start_date = values.get(
'start_date',
datetime.datetime.strftime(lease['start_date'], LEASE_DATE_FORMAT))
end_date = values.get(
'end_date',
datetime.datetime.strftime(lease['end_date'], LEASE_DATE_FORMAT))
before_end_date = values.get('before_end_notification', None)
now = datetime.datetime.utcnow()
now = datetime.datetime(now.year,
now.month,
now.day,
now.hour,
now.minute)
if start_date == 'now':
start_date = now
else:
start_date = self._date_from_string(start_date)
end_date = self._date_from_string(end_date)
values['start_date'] = start_date
values['end_date'] = end_date
if (lease['start_date'] < now and
values['start_date'] != lease['start_date']):
raise common_ex.NotAuthorized(
'Cannot modify the start date of already started leases')
if (lease['start_date'] > now and
values['start_date'] < now):
raise common_ex.NotAuthorized(
'Start date must later than current date')
if lease['end_date'] < now:
raise common_ex.NotAuthorized(
'Terminated leases can only be renamed')
if (values['end_date'] < now or
values['end_date'] < values['start_date']):
raise common_ex.NotAuthorized(
'End date must be later than current and start date')
with trusts.create_ctx_from_trust(lease['trust_id']):
if before_end_date:
try:
before_end_date = self._date_from_string(before_end_date)
self._check_date_within_lease_limits(before_end_date,
values)
except common_ex.ClimateException as e:
LOG.error("Invalid before_end_date param. %s" % e.message)
raise e
# TODO(frossigneux) rollback if an exception is raised
for reservation in (
db_api.reservation_get_all_by_lease_id(lease_id)):
reservation['start_date'] = values['start_date']
reservation['end_date'] = values['end_date']
resource_type = reservation['resource_type']
self.plugins[resource_type].update_reservation(
reservation['id'],
reservation)
event = db_api.event_get_first_sorted_by_filters(
'lease_id',
'asc',
{
'lease_id': lease_id,
'event_type': 'start_lease'
}
)
if not event:
raise common_ex.ClimateException(
'Start lease event not found')
db_api.event_update(event['id'], {'time': values['start_date']})
event = db_api.event_get_first_sorted_by_filters(
'lease_id',
'asc',
{
'lease_id': lease_id,
'event_type': 'end_lease'
}
)
if not event:
raise common_ex.ClimateException(
'End lease event not found')
db_api.event_update(event['id'], {'time': values['end_date']})
notifications = ['update']
self._update_before_end_event(lease, values, notifications,
before_end_date)
db_api.lease_update(lease_id, values)
lease_state = states.LeaseState(id=lease_id,
action=states.lease.UPDATE,
status=states.lease.COMPLETE,
status_reason="Successfully updated lease")
lease_state.save()
lease = db_api.lease_get(lease_id)
with trusts.create_ctx_from_trust(lease['trust_id']) as ctx:
self._send_notification(lease, ctx, events=notifications)
return lease
def create_lease(self, lease_values):
"""Create a lease with reservations.
Return either the model of created lease or None if any error.
"""
try:
trust_id = lease_values.pop('trust_id')
except KeyError:
raise exceptions.MissingTrustId()
# Remove and keep reservation values
reservations = lease_values.pop("reservations", [])
# Create the lease without the reservations
start_date = lease_values['start_date']
end_date = lease_values['end_date']
now = datetime.datetime.utcnow()
now = datetime.datetime(now.year,
now.month,
now.day,
now.hour,
now.minute)
if start_date == 'now':
start_date = now
else:
start_date = self._date_from_string(start_date)
end_date = self._date_from_string(end_date)
if start_date < now:
raise common_ex.NotAuthorized(
'Start date must later than current date')
with trusts.create_ctx_from_trust(trust_id) as ctx:
lease_values['user_id'] = ctx.user_id
lease_values['project_id'] = ctx.project_id
lease_values['start_date'] = start_date
lease_values['end_date'] = end_date
if not lease_values.get('events'):
lease_values['events'] = []
lease_values['events'].append({'event_type': 'start_lease',
'time': start_date,
'status': 'UNDONE'})
lease_values['events'].append({'event_type': 'end_lease',
'time': end_date,
'status': 'UNDONE'})
before_end_date = lease_values.get('before_end_notification', None)
if before_end_date:
# incoming param. Validation check
try:
before_end_date = self._date_from_string(
before_end_date)
self._check_date_within_lease_limits(before_end_date,
lease_values)
except common_ex.ClimateException as e:
LOG.error("Invalid before_end_date param. %s" % e.message)
raise e
elif CONF.manager.notify_hours_before_lease_end > 0:
delta = datetime.timedelta(
hours=CONF.manager.notify_hours_before_lease_end)
before_end_date = lease_values['end_date'] - delta
if before_end_date:
event = {'event_type': 'before_end_lease',
'status': 'UNDONE'}
lease_values['events'].append(event)
self._update_before_end_event_date(event, before_end_date,
lease_values)
try:
if trust_id:
lease_values.update({'trust_id': trust_id})
lease = db_api.lease_create(lease_values)
lease_id = lease['id']
except db_ex.ClimateDBDuplicateEntry:
LOG.exception('Cannot create a lease - duplicated lease name')
raise exceptions.LeaseNameAlreadyExists(
name=lease_values['name'])
except db_ex.ClimateDBException:
LOG.exception('Cannot create a lease')
raise
else:
try:
for reservation in reservations:
reservation['lease_id'] = lease['id']
reservation['start_date'] = lease['start_date']
reservation['end_date'] = lease['end_date']
resource_type = reservation['resource_type']
if resource_type in self.plugins:
self.plugins[resource_type].create_reservation(
reservation)
else:
raise exceptions.UnsupportedResourceType(
resource_type)
except (exceptions.UnsupportedResourceType,
common_ex.ClimateException):
LOG.exception("Failed to create reservation for a lease. "
"Rollback the lease and associated "
"reservations")
db_api.lease_destroy(lease_id)
raise
else:
lease_state = states.LeaseState(id=lease['id'],
action=states.lease.CREATE,
status=states.lease.COMPLETE,
status_reason="Successfully created lease")
lease_state.save()
lease = db_api.lease_get(lease['id'])
self._send_notification(lease, ctx, events=['create'])
return lease