Better responses to invalid HTTP times

nilmdb/cmdline/intervals.py

@@ -1,5 +1,6 @@
 from nilmdb.utils.printf import *
 import nilmdb.utils.time
+from nilmdb.utils.interval import Interval
 
 import fnmatch
 import argparse
@@ -42,6 +43,8 @@ def setup(self, sub):
     group = cmd.add_argument_group("Misc options")
     group.add_argument("-T", "--timestamp-raw", action="store_true",
                        help="Show raw timestamps when printing times")
+    group.add_argument("-o", "--optimize", action="store_true",
+                       help="Optimize (merge adjacent) intervals")
 
     return cmd
 
@@ -58,9 +61,16 @@ def cmd_intervals(self):
         time_string = nilmdb.utils.time.timestamp_to_human
 
     try:
-           for (start, end) in self.client.stream_intervals(
-               self.args.path, self.args.start, self.args.end, self.args.diff):
-               printf("[ %s -> %s ]\n", time_string(start), time_string(end))
+        intervals = ( Interval(start, end) for (start, end) in
+                      self.client.stream_intervals(self.args.path,
+                                                   self.args.start,
+                                                   self.args.end,
+                                                   self.args.diff) )
+        if self.args.optimize:
+            intervals = nilmdb.utils.interval.optimize(intervals)
+        for i in intervals:
+            printf("[ %s -> %s ]\n", time_string(i.start), time_string(i.end))
+
     except nilmdb.client.ClientError as e:
         self.die("error listing intervals: %s", str(e))
 

nilmdb/server/server.py

@@ -84,10 +84,18 @@ class Stream(NilmApp):
     # Helpers
     def _get_times(self, start_param, end_param):
         (start, end) = (None, None)
-        if start_param is not None:
-            start = string_to_timestamp(start_param)
-        if end_param is not None:
-            end = string_to_timestamp(end_param)
+        try:
+            if start_param is not None:
+                start = string_to_timestamp(start_param)
+        except Exception:
+            raise cherrypy.HTTPError("400 Bad Request", sprintf(
+                "invalid start (%s): must be a numeric timestamp", start_param))
+        try:
+            if end_param is not None:
+                end = string_to_timestamp(end_param)
+        except Exception:
+            raise cherrypy.HTTPError("400 Bad Request", sprintf(
+                "invalid end (%s): must be a numeric timestamp", end_param))
         if start is not None and end is not None:
             if start >= end:
                 raise cherrypy.HTTPError(

tests/test_client.py

@@ -242,6 +242,19 @@ class TestClient(object):
         in_("400 Bad Request", str(e.exception))
         in_("start must precede end", str(e.exception))
 
+        # Invalid times in HTTP request
+        with assert_raises(ClientError) as e:
+            client.http.put("stream/insert", "", { "path": "/newton/prep",
+                                                   "start": "asdf", "end": 0 })
+        in_("400 Bad Request", str(e.exception))
+        in_("invalid start", str(e.exception))
+
+        with assert_raises(ClientError) as e:
+            client.http.put("stream/insert", "", { "path": "/newton/prep",
+                                                   "start": 0, "end": "asdf" })
+        in_("400 Bad Request", str(e.exception))
+        in_("invalid end", str(e.exception))
+
         # Good content type
         with assert_raises(ClientError) as e:
             client.http.put("stream/insert", "",

tests/test_cmdline.py

@@ -1011,6 +1011,18 @@ class TestCmdline(object):
         self.match("[ Thu, 01 Jan 2004 00:00:00.000000 +0000 -"
                    "> Sat, 01 Jan 2005 00:00:00.000000 +0000 ]\n")
 
+        # optimize
+        self.ok("insert -s 01-01-2002 -e 01-01-2004 /diff/1 /dev/null")
+        self.ok("intervals /diff/1")
+        self.match("[ Sat, 01 Jan 2000 00:00:00.000000 +0000 -"
+                   "> Thu, 01 Jan 2004 00:00:00.000000 +0000 ]\n"
+                   "[ Thu, 01 Jan 2004 00:00:00.000000 +0000 -"
+                   "> Sat, 01 Jan 2005 00:00:00.000000 +0000 ]\n")
+        self.ok("intervals /diff/1 --optimize")
+        self.ok("intervals /diff/1 -o")
+        self.match("[ Sat, 01 Jan 2000 00:00:00.000000 +0000 -"
+                   "> Sat, 01 Jan 2005 00:00:00.000000 +0000 ]\n")
+
         self.ok("destroy -R /diff/1")
         self.ok("destroy -R /diff/2")
 

tests/test_serializer.py

@@ -110,6 +110,5 @@ class TestSerializer(Base):
     def test_iter(self):
         sp = nilmdb.utils.serializer_proxy
         i = sp(ListLike)()
-        print iter(i)
         eq_(list(i), [1,2,3,4,5])
         eq_(i[3], 3)