Add barebones dstat endpoint and URL mapping (currently only serving from

current directory)

stackviz/settings.py

@@ -92,6 +92,8 @@ TEST_REPOSITORIES = [
     BASE_DIR
 ]
 
+DSTAT_CSV = 'dstat.log'
+
 # If true, AJAX calls should attempt to load `*.json.gz` files rather than plain
 # `*.json` files. This should only ever be toggled `True` for static site
 # exports and is not currently supported on live servers.

stackviz/urls.py

@@ -12,5 +12,6 @@ urlpatterns = patterns('',
     url(r'^index.html$', IndexView.as_view(), name="index"),
     url(r'^tempest_', include('stackviz.views.tempest.urls')),
     url(r'^devstack_', include('stackviz.views.devstack.urls')),
-    url(r'^upstream_', include ('stackviz.views.upstream.urls'))
+    url(r'^upstream_', include ('stackviz.views.upstream.urls')),
+    url(r'^dstat_', include ('stackviz.views.dstat.urls'))
 )

stackviz/views/dstat/__init__.py

@@ -0,0 +1 @@
+__author__ = 'tim'

stackviz/views/dstat/api.py

@@ -0,0 +1,22 @@
+from django.http import HttpResponse
+from django.views.generic import View
+
+from stackviz import settings
+
+_cached_csv = None
+
+
+def _load_csv():
+    global _cached_csv
+
+    if _cached_csv:
+        return _cached_csv
+
+    with open(settings.DSTAT_CSV, 'r') as f:
+        _cached_csv = f.readlines()
+        return _cached_csv
+
+
+class DStatCSVEndpoint(View):
+    def get(self, request):
+        return HttpResponse(_load_csv(), content_type="text/csv")

stackviz/views/dstat/urls.py

@@ -0,0 +1,7 @@
+from django.conf.urls import patterns, include, url
+
+from .api import DStatCSVEndpoint
+
+urlpatterns = patterns('',
+    url(r'^log.csv$', DStatCSVEndpoint.as_view()),
+)