Add fixes for basic stream api support

Fixed api typo 'distinquished'
Added proper json serialization for datetime and timerange

Change-Id: I6af8bb15b5e9e65e7c6965cd80e1483b3df04b99

.gitreview

@@ -0,0 +1,5 @@
+[gerrit]
+host=review.openstack.org
+port=29418
+project=stackforge/stacktach-quincy.git
+

quincy/jsonutil.py

@@ -0,0 +1,35 @@
+import json
+import datetime
+import timex
+
+
+class ObjectEncoder(json.JSONEncoder):
+
+    ENCODE_MAP = {datetime.datetime: "datetime",
+                  timex.TimeRange: "timex.TimeRange",
+                  timex.Timestamp: "timex.Timestamp"}
+
+    def default(self, obj):
+        if type(obj) in self.ENCODE_MAP:
+            typename = self.ENCODE_MAP[type(obj)]
+            encoder = getattr(self, '_encode_' + typename.replace('.', '_').lower())
+            return encoder(obj, typename)
+        return super(ObjectEncoder, self).default(obj)
+
+    def _encode_datetime(self, obj, name):
+        return {'__type__' : name,
+                'datetime': obj.isoformat()}
+
+    def _encode_timex_timestamp(self, obj, name):
+        return {'__type__' : name,
+                'timestamp': obj.timestamp.isoformat()}
+
+    def _encode_timex_timerange(self, obj, name):
+        return {'__type__' : name,
+                'begin': obj.begin.isoformat(),
+                'end': obj.end.isoformat()}
+
+
+def dumps(obj, **kw):
+    kw['cls'] = ObjectEncoder
+    return json.dumps(obj, **kw)

quincy/v1_api.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import json
+from quincy import jsonutil
 
 from dateutil import parser
 
@@ -31,7 +31,7 @@ class StreamCollection(common.FalconBase):
     # younger_than
     # state
     # trigger_name
-    # distinquishing_traits - find stream by dtrait values.
+    # distinguishing_traits - find stream by dtrait values.
     #
     # Actions on a Stream:
     # details - get full details on stream (including events &
@@ -42,7 +42,7 @@ class StreamCollection(common.FalconBase):
         younger_than = req.get_param('younger_than')
         state = req.get_param('state')
         trigger = req.get_param('trigger_name')
-        traits = req.get_param('distinquishing_traits')
+        traits = req.get_param('distinguishing_traits')
 
         if older_than:
             older_than = parser.parse(older_than)
@@ -54,15 +54,15 @@ class StreamCollection(common.FalconBase):
                                         younger_than=younger_than,
                                         state=state,
                                         trigger_name=trigger,
-                                        distinquishing_traits=traits)
-        resp.body = json.dumps(streams)
+                                        distinguishing_traits=traits)
+        resp.body = jsonutil.dumps(streams)
 
 
 class StreamItem(common.FalconBase):
     def on_get(self, req, resp, stream_id, action=None):
         details = req.get_param('details')
         streams = self.impl.get_stream(stream_id, details)
-        resp.body = json.dumps(streams)
+        resp.body = jsonutil.dumps(streams)
 
     def on_delete(self, req, resp, stream_id):
         self.impl.delete_stream(stream_id)

quincy/v1_impl.py

@@ -23,14 +23,14 @@ class Stream(object):
         self.stream_id = stream_id
         self.trigger_name = trigger_name
         self.state = state
-        self.distinquishing_traits = []
+        self.distinguishing_traits = []
 
     def to_dict(self):
         return {"last_updated": str(self.last_updated),
                 "stream_id": self.stream_id,
                 "trigger_name": self.trigger_name,
                 "state": self.state,
-                "distinquishing_traits": self.distinquishing_traits}
+                "distinguishing_traits": self.distinguishing_traits}
 
 
 class Impl(object):
@@ -44,7 +44,7 @@ class Impl(object):
             younger_than
             state
             trigger_name
-            distinquishing_traits
+            distinguishing_traits
         """
         x = [Stream(str(uuid.uuid4()), "EOD-Exists", "Collecting"),
              Stream(str(uuid.uuid4()), "EOD-Exists", "Error"),

requirements.txt

@@ -1,3 +1,4 @@
 python-dateutil
 falcon
 simport >= 0.0.dev0
+timex