merging impressions toggle branch

splitio/engine/evaluator.py

@@ -67,7 +67,8 @@ def eval_with_context(self, key, bucketing, feature_name, attrs, ctx):
             'impression': {
                 'label': label,
                 'change_number': _change_number
-            }
+            },
+            'track': feature.trackImpressions
         }
 
     def _treatment_for_flag(self, flag, key, bucketing, attributes, ctx):

splitio/engine/impressions/impressions.py

@@ -11,7 +11,7 @@ class ImpressionsMode(Enum):
 class Manager(object):  # pylint:disable=too-few-public-methods
     """Impression manager."""
 
-    def __init__(self, strategy, telemetry_runtime_producer):
+    def __init__(self, strategy, none_strategy, telemetry_runtime_producer):
         """
         Construct a manger to track and forward impressions to the queue.
 
@@ -23,19 +23,33 @@ def __init__(self, strategy, telemetry_runtime_producer):
         """
 
         self._strategy = strategy
+        self._none_strategy = none_strategy
         self._telemetry_runtime_producer = telemetry_runtime_producer
 
-    def process_impressions(self, impressions):
+    def process_impressions(self, impressions_decorated):
         """
         Process impressions.
 
         Impressions are analyzed to see if they've been seen before and counted.
 
-        :param impressions: List of impression objects with attributes
-        :type impressions: list[tuple[splitio.models.impression.Impression, dict]]
+        :param impressions_decorated: List of impression objects with attributes
+        :type impressions_decorated: list[tuple[splitio.models.impression.ImpressionDecorated, dict]]
 
         :return: processed and deduped impressions.
         :rtype: tuple(list[tuple[splitio.models.impression.Impression, dict]], list(int))
         """
-        for_log, for_listener, for_counter, for_unique_keys_tracker = self._strategy.process_impressions(impressions)
-        return for_log, len(impressions) - len(for_log), for_listener, for_counter, for_unique_keys_tracker
+        for_listener_all = []
+        for_log_all = []
+        for_counter_all = []
+        for_unique_keys_tracker_all = []
+        for impression_decorated, att in impressions_decorated:
+            if not impression_decorated.track:
+                for_log, for_listener, for_counter, for_unique_keys_tracker = self._none_strategy.process_impressions([(impression_decorated.Impression, att)])
+            else:
+                for_log, for_listener, for_counter, for_unique_keys_tracker = self._strategy.process_impressions([(impression_decorated.Impression, att)])
+            for_listener_all.extend(for_listener)
+            for_log_all.extend(for_log)
+            for_counter_all.extend(for_counter)
+            for_unique_keys_tracker_all.extend(for_unique_keys_tracker)
+
+        return for_log_all, len(impressions_decorated) - len(for_log_all), for_listener_all, for_counter_all, for_unique_keys_tracker_all

splitio/models/impressions.py

@@ -16,6 +16,14 @@
     ]
 )
 
+ImpressionDecorated = namedtuple(
+    'ImpressionDecorated',
+    [
+        'Impression',
+        'track'
+    ]
+)
+
 # pre-python3.7 hack to make previous_time optional
 Impression.__new__.__defaults__ = (None,)
 

splitio/models/splits.py

@@ -10,7 +10,7 @@
 
 SplitView = namedtuple(
     'SplitView',
-    ['name', 'traffic_type', 'killed', 'treatments', 'change_number', 'configs', 'default_treatment', 'sets']
+    ['name', 'traffic_type', 'killed', 'treatments', 'change_number', 'configs', 'default_treatment', 'sets', 'trackImpressions']
 )
 
 _DEFAULT_CONDITIONS_TEMPLATE =   {
@@ -73,7 +73,8 @@ def __init__(  # pylint: disable=too-many-arguments
             traffic_allocation=None,
             traffic_allocation_seed=None,
             configurations=None,
-            sets=None
+            sets=None,
+            trackImpressions=None
     ):
         """
         Class constructor.
@@ -96,6 +97,8 @@ def __init__(  # pylint: disable=too-many-arguments
         :type traffic_allocation_seed: int
         :pram sets: list of flag sets
         :type sets: list
+        :pram trackImpressions: track impressions flag
+        :type trackImpressions: boolean
         """
         self._name = name
         self._seed = seed
@@ -125,6 +128,7 @@ def __init__(  # pylint: disable=too-many-arguments
 
         self._configurations = configurations
         self._sets = set(sets) if sets is not None else set()
+        self._trackImpressions = trackImpressions if trackImpressions is not None else True
 
     @property
     def name(self):
@@ -186,6 +190,11 @@ def sets(self):
         """Return the flag sets of the split."""
         return self._sets
 
+    @property
+    def trackImpressions(self):
+        """Return trackImpressions of the split."""
+        return self._trackImpressions
+
     def get_configurations_for(self, treatment):
         """Return the mapping of treatments to configurations."""
         return self._configurations.get(treatment) if self._configurations else None
@@ -214,7 +223,8 @@ def to_json(self):
             'algo': self.algo.value,
             'conditions': [c.to_json() for c in self.conditions],
             'configurations': self._configurations,
-            'sets': list(self._sets)
+            'sets': list(self._sets),
+            'trackImpressions': self._trackImpressions
         }
 
     def to_split_view(self):
@@ -232,7 +242,8 @@ def to_split_view(self):
             self.change_number,
             self._configurations if self._configurations is not None else {},
             self._default_treatment,
-            list(self._sets) if self._sets is not None else []
+            list(self._sets) if self._sets is not None else [],
+            self._trackImpressions
         )
 
     def local_kill(self, default_treatment, change_number):
@@ -288,5 +299,6 @@ def from_raw(raw_split):
         traffic_allocation=raw_split.get('trafficAllocation'),
         traffic_allocation_seed=raw_split.get('trafficAllocationSeed'),
         configurations=raw_split.get('configurations'),
-        sets=set(raw_split.get('sets')) if raw_split.get('sets') is not None else []
+        sets=set(raw_split.get('sets')) if raw_split.get('sets') is not None else [],
+        trackImpressions=raw_split.get('trackImpressions') if raw_split.get('trackImpressions') is not None else True
     )

splitio/recorder/recorder.py

@@ -151,7 +151,7 @@ def __init__(self, impressions_manager, event_storage, impression_storage, telem
         self._telemetry_evaluation_producer = telemetry_evaluation_producer
         self._telemetry_runtime_producer = telemetry_runtime_producer
 
-    def record_treatment_stats(self, impressions, latency, operation, method_name):
+    def record_treatment_stats(self, impressions_decorated, latency, operation, method_name):
         """
         Record stats for treatment evaluation.
 
@@ -165,7 +165,7 @@ def record_treatment_stats(self, impressions, latency, operation, method_name):
         try:
             if method_name is not None:
                 self._telemetry_evaluation_producer.record_latency(operation, latency)
-            impressions, deduped, for_listener, for_counter, for_unique_keys_tracker = self._impressions_manager.process_impressions(impressions)
+            impressions, deduped, for_listener, for_counter, for_unique_keys_tracker = self._impressions_manager.process_impressions(impressions_decorated)
             if deduped > 0:
                 self._telemetry_runtime_producer.record_impression_stats(telemetry.CounterConstants.IMPRESSIONS_DEDUPED, deduped)
             self._impression_storage.put(impressions)
@@ -210,7 +210,7 @@ def __init__(self, impressions_manager, event_storage, impression_storage, telem
         self._telemetry_evaluation_producer = telemetry_evaluation_producer
         self._telemetry_runtime_producer = telemetry_runtime_producer
 
-    async def record_treatment_stats(self, impressions, latency, operation, method_name):
+    async def record_treatment_stats(self, impressions_decorated, latency, operation, method_name):
         """
         Record stats for treatment evaluation.
 
@@ -224,7 +224,7 @@ async def record_treatment_stats(self, impressions, latency, operation, method_n
         try:
             if method_name is not None:
                 await self._telemetry_evaluation_producer.record_latency(operation, latency)
-            impressions, deduped, for_listener, for_counter, for_unique_keys_tracker = self._impressions_manager.process_impressions(impressions)
+            impressions, deduped, for_listener, for_counter, for_unique_keys_tracker = self._impressions_manager.process_impressions(impressions_decorated)
             if deduped > 0:
                 await self._telemetry_runtime_producer.record_impression_stats(telemetry.CounterConstants.IMPRESSIONS_DEDUPED, deduped)
 
@@ -277,7 +277,7 @@ def __init__(self, pipe, impressions_manager, event_storage,
         self._data_sampling = data_sampling
         self._telemetry_redis_storage = telemetry_redis_storage
 
-    def record_treatment_stats(self, impressions, latency, operation, method_name):
+    def record_treatment_stats(self, impressions_decorated, latency, operation, method_name):
         """
         Record stats for treatment evaluation.
 
@@ -294,7 +294,7 @@ def record_treatment_stats(self, impressions, latency, operation, method_name):
                 if self._data_sampling < rnumber:
                     return
 
-            impressions, deduped, for_listener, for_counter, for_unique_keys_tracker = self._impressions_manager.process_impressions(impressions)
+            impressions, deduped, for_listener, for_counter, for_unique_keys_tracker = self._impressions_manager.process_impressions(impressions_decorated)
             if impressions:
                 pipe = self._make_pipe()
                 self._impression_storage.add_impressions_to_pipe(impressions, pipe)
@@ -367,7 +367,7 @@ def __init__(self, pipe, impressions_manager, event_storage,
         self._data_sampling = data_sampling
         self._telemetry_redis_storage = telemetry_redis_storage
 
-    async def record_treatment_stats(self, impressions, latency, operation, method_name):
+    async def record_treatment_stats(self, impressions_decorated, latency, operation, method_name):
         """
         Record stats for treatment evaluation.
 
@@ -384,7 +384,7 @@ async def record_treatment_stats(self, impressions, latency, operation, method_n
                 if self._data_sampling < rnumber:
                     return
 
-            impressions, deduped, for_listener, for_counter, for_unique_keys_tracker = self._impressions_manager.process_impressions(impressions)
+            impressions, deduped, for_listener, for_counter, for_unique_keys_tracker = self._impressions_manager.process_impressions(impressions_decorated)
             if impressions:
                 pipe = self._make_pipe()
                 self._impression_storage.add_impressions_to_pipe(impressions, pipe)

tests/engine/test_evaluator.py

@@ -52,6 +52,7 @@ def test_evaluate_treatment_ok(self, mocker):
         assert result['impression']['change_number'] == 123
         assert result['impression']['label'] == 'some_label'
         assert mocked_split.get_configurations_for.mock_calls == [mocker.call('on')]
+        assert result['track'] == mocked_split.trackImpressions
 
 
     def test_evaluate_treatment_ok_no_config(self, mocker):