openstack/stackviz
Code Issues Proposed changes

Return a 404 error when no dstat csv can be loaded

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This commit is contained in:
Tim Buckley 2015-08-03 09:03:39 -06:00
parent d0112a2fc0
commit e5fb2f327b
1 changed files with 15 additions and 5 deletions
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20
stackviz/views/dstat/api.py
View File

@ -1,4 +1,6 @@
from django.http import HttpResponse
import os
from django.http import HttpResponse, Http404
from django.views.generic import View
from stackviz import settings
@ -12,11 +14,19 @@ def _load_csv():
if _cached_csv:
return _cached_csv
with open(settings.DSTAT_CSV, 'r') as f:
_cached_csv = f.readlines()
return _cached_csv
try:
with open(settings.DSTAT_CSV, 'r') as f:
_cached_csv = f.readlines()
return _cached_csv
except IOError:
return None
class DStatCSVEndpoint(View):
def get(self, request):
return HttpResponse(_load_csv(), content_type="text/csv")
csv = _load_csv()
if not csv:
raise Http404("DStat log not loaded.")
return HttpResponse(csv, content_type="text/csv")