add JSON api for getting tempest run results

stackviz/views/tempest/api.py

@@ -0,0 +1,64 @@
+from restless.views import Endpoint
+
+from stackviz.parser.tempest_subunit import (get_repositories,
+                                             convert_run,
+                                             reorganize)
+
+#: Cached results from loaded subunit logs indexed by their run number
+_cached_run = {}
+
+#: Cached results converted into tree form
+_cached_tree = {}
+
+
+class NoRunDataException(Exception):
+    pass
+
+class RunNotFoundException(Exception):
+    pass
+
+
+def _load_run(run_id):
+    if run_id in _cached_run:
+        return _cached_run[run_id]
+
+    repos = get_repositories()
+    if not repos:
+        raise NoRunDataException()
+
+    try:
+        # assume first repo for now
+        run = repos[0].get_test_run(run_id)
+
+        # strip details for now
+        # TODO: provide method for getting details on demand
+        # (preferably for individual tests to avoid bloat)
+        converted_run = convert_run(run, strip_details=True)
+        _cached_run[run_id] = converted_run
+
+        return converted_run
+    except KeyError:
+        raise RunNotFoundException()
+
+
+def _load_tree(run_id):
+    if run_id in _cached_tree:
+        return _cached_tree[run_id]
+
+    run = _load_run(run_id)
+    tree = reorganize(run)
+
+    _cached_tree[run_id] = tree
+    return tree
+
+
+class TempestRunEndpoint(Endpoint):
+    def get(self, request, run_id):
+        return _load_tree(run_id)
+
+
+# TODO: run details
+# class TempestRunDetailsEndpoint(Endpoint):
+#     def get(self, request, run_id, test_path):
+#         ...
+

stackviz/views/tempest/urls.py

@@ -1,13 +1,11 @@
 from django.conf.urls import patterns, include, url
-from django.contrib import admin
 
-from stackviz.views.tempest.latest_results import LatestResultsView
+from .latest_results import LatestResultsView
+from .api import TempestRunEndpoint
 
 
 urlpatterns = patterns('',
-    # Examples:
-    # url(r'^$', 'stackviz.views.home', name='home'),
-    # url(r'^blog/', include('blog.urls')),
-
     url(r'^latest_results$', LatestResultsView.as_view()),
+
+    url(r'^api/(\d+)/$', TempestRunEndpoint.as_view())
 )