added models, events config data and events metadata

splitio/events/events_manager_config.py

@@ -0,0 +1,124 @@
+"""Events Manager Configuration."""
+from splitio.models.events import SdkEvent, SdkInternalEvent
+
+class EventsManagerConfig(object):
+    """Events Manager Configurations class."""
+
+    def __init__(self):
+        """
+        Construct Events Manager Configuration instance.
+        """
+        self._require_all = self._get_require_all()
+        self._prerequisites = self._get_prerequisites()
+        self._require_any = self._get_require_any()
+        self._suppressed_by = self._get_suppressed_by()
+        self._execution_limits = self._get_execution_limits()
+        self._evaluation_order = self._get_sorted_events()
+
+    @property
+    def require_all(self):
+        """Return require all dict"""
+        return self._require_all    
+
+    @property
+    def prerequisites(self):
+        """Return prerequisites dict"""
+        return self._prerequisites
+
+    @property
+    def require_any(self):
+        """Return require_any dict"""
+        return self._require_any
+
+    @property
+    def suppressed_by(self):
+        """Return suppressed_by dict"""
+        return self._suppressed_by
+
+    @property
+    def execution_limits(self):
+        """Return execution_limits dict"""
+        return self._execution_limits
+
+    @property
+    def prerequisites(self):
+        """Return require all dict"""
+        return self._prerequisites
+
+    @property
+    def evaluation_order(self):
+        """Return evaluation_order dict"""
+        return self._evaluation_order
+
+    @property
+    def sorted_events(self):
+        """Return sorted_events dict"""
+        return self._sorted_events
+
+    def _get_require_all(self):
+        """Return require all dict"""
+        return  {
+                    SdkEvent.SDK_READY: {SdkInternalEvent.SDK_READY}
+                }
+
+    def _get_prerequisites(self):
+        """Return prerequisites dict"""
+        return  {
+                    SdkEvent.SDK_UPDATE: {SdkEvent.SDK_READY}
+                }
+
+    def _get_require_any(self):
+        """Return require_any dict"""
+        return  {
+                    SdkEvent.SDK_UPDATE: {SdkInternalEvent.FLAG_KILLED_NOTIFICATION, SdkInternalEvent.FLAGS_UPDATED, 
+                                             SdkInternalEvent.RB_SEGMENTS_UPDATED, SdkInternalEvent.SEGMENTS_UPDATED},
+                    SdkEvent.SDK_READY_TIMED_OUT: {SdkInternalEvent.SDK_TIMED_OUT}
+                }
+
+    def _get_suppressed_by(self):
+        """Return suppressed_by dict"""
+        return  {
+                    SdkEvent.SDK_READY_TIMED_OUT: {SdkEvent.SDK_READY}
+                }
+
+    def _get_execution_limits(self):
+        """Return execution_limits dict"""
+        return  {
+                    SdkEvent.SDK_READY: 1,
+                    SdkEvent.SDK_READY_TIMED_OUT: -1,
+                    SdkEvent.SDK_UPDATE: -1
+                }
+
+    def _get_sorted_events(self):
+        """Return dorted events set"""
+        sorted_events = []
+        for sdk_event in [SdkEvent.SDK_READY, SdkEvent.SDK_READY_TIMED_OUT, SdkEvent.SDK_UPDATE]:
+            sorted_events = self._dfs_recursive(sdk_event, sorted_events)
+
+        return sorted_events
+
+
+    def _dfs_recursive(self, sdk_event, added):
+        """Return sorted events set based on the dependency rules"""
+        if sdk_event in added:
+            return added
+
+        for dependent_event in self._get_dependencies(sdk_event):
+            added = self._dfs_recursive(dependent_event, added)
+
+        added.append(sdk_event)
+        return added
+
+    def _get_dependencies(self, sdk_event):
+        """Return dependencies set from prerequisites and suppressed events for a given event"""
+        dependencies = set()
+        for prerequisites_event_name, prerequisites_event_value in self.prerequisites.items(): 
+            if prerequisites_event_name == sdk_event:
+                for prereq_event in prerequisites_event_value:
+                    dependencies.add(prereq_event)
+
+        for suppressed_event_name, suppressed_event_value in self.suppressed_by.items():
+            if sdk_event in suppressed_event_value:
+                dependencies.add(suppressed_event_name)
+
+        return dependencies

splitio/events/events_metadata.py

@@ -0,0 +1,35 @@
+"""Events Metadata."""
+from enum import Enum
+
+class SdkEventType(Enum):
+    """Public event types"""
+
+    FLAG_UPDATE = 'FLAG_UPDATE'
+    SEGMENT_UPDATE = 'SEGMENT_UPDATE'
+
+class EventsMetadata(object):
+    """Events Metadata class."""
+
+    def __init__(self, type, names):
+        """
+        Construct Events Metadata instance.
+        """
+        self._type = type
+        self._names = self._sanitize(names)
+
+    def get_type(self):
+        """Return type"""
+        return self._type
+
+    def get_names(self):
+        """Return names"""
+        return self._names
+
+    def _sanitize(self, names):
+        """Return sanitized names list with values str"""
+        santized_data = set()
+        for name in names:
+            if isinstance(name, str): 
+                santized_data.add(name)
+
+        return santized_data

splitio/models/events.py

@@ -4,7 +4,7 @@
 The dto is implemented as a namedtuple for performance matters.
 """
 from collections import namedtuple
-
+from enum import Enum
 
 Event = namedtuple('Event', [
     'key',
@@ -19,3 +19,23 @@
     'event',
     'size',
 ])
+
+class SdkEvent(Enum):
+    """Public SDK events"""
+
+    SDK_READY = 'SDK_READY'
+    SDK_READY_TIMED_OUT = 'SDK_READY_TIMED_OUT'
+    SDK_UPDATE = 'SDK_UPDATE'
+
+class SdkInternalEvent(Enum):
+    """Internal SDK events"""
+
+    SDK_READY = 'SDK_READY'
+    SDK_TIMED_OUT = 'SDK_TIMED_OUT'
+    FLAGS_UPDATED = 'FLAGS_UPDATED'
+    FLAG_KILLED_NOTIFICATION = 'FLAG_KILLED_NOTIFICATION'
+    SEGMENTS_UPDATED = 'SEGMENTS_UPDATED'
+    RB_SEGMENTS_UPDATED = 'RB_SEGMENTS_UPDATED'
+    LARGE_SEGMENTS_UPDATED = 'LARGE_SEGMENTS_UPDATED'
+
+

tests/events/test_events_manager_config.py

@@ -0,0 +1,43 @@
+"""EventsManagerConfig test module."""
+import pytest
+
+from splitio.events.events_manager_config import EventsManagerConfig
+from splitio.models.events import SdkEvent, SdkInternalEvent
+
+class EventsManagerConfigTests(object):
+    """Tests for EventsManagerConfig."""
+
+    def test_build_instance(self):
+        config = EventsManagerConfig()
+
+        assert len(config.require_all[SdkEvent.SDK_READY]) == 1
+        assert SdkInternalEvent.SDK_READY in config.require_all[SdkEvent.SDK_READY]
+
+        assert SdkEvent.SDK_READY in config.prerequisites[SdkEvent.SDK_UPDATE]
+
+        assert config.execution_limits[SdkEvent.SDK_READY_TIMED_OUT] == -1
+        assert config.execution_limits[SdkEvent.SDK_UPDATE] == -1
+        assert config.execution_limits[SdkEvent.SDK_READY] == 1
+
+        assert len(config.require_any[SdkEvent.SDK_READY_TIMED_OUT]) == 1
+        assert SdkInternalEvent.SDK_TIMED_OUT in config.require_any[SdkEvent.SDK_READY_TIMED_OUT]
+
+        assert len(config.require_any[SdkEvent.SDK_UPDATE]) == 4
+        assert SdkInternalEvent.FLAG_KILLED_NOTIFICATION in config.require_any[SdkEvent.SDK_UPDATE]
+        assert SdkInternalEvent.FLAGS_UPDATED in config.require_any[SdkEvent.SDK_UPDATE]
+        assert SdkInternalEvent.RB_SEGMENTS_UPDATED in config.require_any[SdkEvent.SDK_UPDATE]
+        assert SdkInternalEvent.SEGMENTS_UPDATED in config.require_any[SdkEvent.SDK_UPDATE]
+
+        assert len(config.suppressed_by[SdkEvent.SDK_READY_TIMED_OUT]) == 1
+        assert SdkEvent.SDK_READY in config.suppressed_by[SdkEvent.SDK_READY_TIMED_OUT]
+
+        order = 0
+        assert len(config.evaluation_order) == 3
+        for sdk_event in config.evaluation_order:
+            order += 1            
+            if order == 1:
+                assert sdk_event == SdkEvent.SDK_READY_TIMED_OUT
+            if order == 2:
+                assert sdk_event == SdkEvent.SDK_READY
+            if order == 3:
+                assert sdk_event == SdkEvent.SDK_UPDATE

tests/events/test_events_metadata.py

@@ -0,0 +1,21 @@
+"""EventsMetadata test module."""
+import pytest
+
+from splitio.events.events_metadata import EventsMetadata
+from splitio.events.events_metadata import SdkEventType
+
+class EventsMetadataTests(object):
+    """Tests for EventsMetadata."""
+
+    def test_build_instance(self):
+        metadata = EventsMetadata(SdkEventType.FLAG_UPDATE, { "feature1" })
+        assert len(metadata.get_names()) == 1
+        assert metadata.get_names().pop() == "feature1"
+        assert len(metadata.get_names()) == 0
+        assert metadata.get_type() == SdkEventType.FLAG_UPDATE
+
+    def test_sanitize_none_input(self):
+        metadata = EventsMetadata(SdkEventType.FLAG_UPDATE, { "feature1", None, 123, False })
+        assert len(metadata.get_names()) == 1
+        assert metadata.get_names().pop() == "feature1"
+        assert len(metadata.get_names()) == 0