def _update_total_meters_count(request, filters):
'''
Temporarily stores total_meters_count into session for speeding up queries
Result expires after 1000 seconds or filter criteria has changed.
:param request: Django request object
criteria:
:return: (int) total meters' count
'''
if 'limit' in filters:
filters.pop('limit')
if 'skip' in filters:
filters.pop('skip')
if 'total_meters_count' in request.session:
refreshed_time = request.session['refreshed_time']
delta = time.time() - refreshed_time
if delta < 1000 and request.session['criteria_hash'] == filters:
return
request.session['refreshed_time'] = time.time()
request.session['criteria_hash'] = filters
# TODO: Error handling for hashing meter_list
# Resend the request purged of limit and skip to get total record number
token_id = request.session['token'].id
new_ceilometer_api = CeilometerApi(token_id)
try:
meter_list = new_ceilometer_api.get_meters(**filters)
request.session['total_meters_count'] = len(meter_list)
except (err.ClientSideError, err.ServerSideError), e:
request.session['total_meters_count'] = 0
return _report_error(e.message)
def _update_total_meters_count(request, filters):
'''
Temporarily stores total_meters_count into session for speeding up queries
Result expires after 1000 seconds or filter criteria has changed.
:param request: Django request object
criteria:
:return: (int) total meters' count
'''
if 'limit' in filters:
filters.pop('limit')
if 'skip' in filters:
filters.pop('skip')
if 'total_meters_count' in request.session:
refreshed_time = request.session['refreshed_time']
delta = time.time() - refreshed_time
if delta < 1000 and request.session['criteria_hash'] == filters:
return
request.session['refreshed_time'] = time.time()
request.session['criteria_hash'] = filters
# TODO: Error handling for hashing meter_list
# Resend the request purged of limit and skip to get total record number
token_id = request.session['token'].id
new_ceilometer_api = CeilometerApi(token_id)
try:
meter_list = new_ceilometer_api.get_meters(**filters)
request.session['total_meters_count'] = len(meter_list)
except (err.ClientSideError, err.ServerSideError), e:
request.session['total_meters_count'] = 0
return _report_error(e.message)
