Support schema defaults for new events.

If an event is not present in the tracking plan, we'll now lookup the schema defaults for the project.

If the event is disabled in the schema default, it will only be sent to the Segment integration (i.e. api.segment.io).

If the event is enabled in the schema default, it will be sent to all integrations.

Ref: https://paper.dropbox.com/doc/Schema-Client-Side-Defaults-DufdS8Ej43mnFXvvMqm1b

analytics/src/main/java/com/segment/analytics/IntegrationOperation.java

@@ -179,12 +179,32 @@ public void run(String key, Integration<?> integration, ProjectSettings projectS
         }
 
         String event = trackPayload.event();
+
         ValueMap eventPlan = trackingPlan.getValueMap(event);
         if (isNullOrEmpty(eventPlan)) {
-          // No event plan, use options provided.
-          if (isIntegrationEnabled(integrationOptions, key)) {
+          if (!isNullOrEmpty(integrationOptions)) {
+            // No event plan, use options provided.
+            if (isIntegrationEnabled(integrationOptions, key)) {
+              integration.track(trackPayload);
+            }
+            return;
+          }
+
+          // Use schema defaults if no options are provided.
+          ValueMap defaultPlan = trackingPlan.getValueMap("__default");
+
+          // No defaults, send the event.
+          if (isNullOrEmpty(defaultPlan)) {
+              integration.track(trackPayload);
+              return;
+          }
+
+          // Send the event if new events are enabled or if this is the Segment integration.
+          boolean defaultEventsEnabled = defaultPlan.getBoolean("enabled", true);
+          if (defaultEventsEnabled || SegmentIntegration.SEGMENT_KEY.equals(key)) {
             integration.track(trackPayload);
           }
+
           return;
         }
 

analytics/src/test/java/com/segment/analytics/IntegrationOperationTest.java

@@ -222,4 +222,95 @@ public void ignoresSegment() throws IOException {
                 + "}"));
     verify(integration).track(payload);
   }
+
+  @Test
+  public void defaultNewEventsEnabled() throws IOException {
+    TrackPayload payload = new TrackPayload.Builder()
+            .event("Install Attributed")
+            .userId("userId")
+            .build();
+    track(
+            payload,
+            "Segment.io",
+            Cartographer.INSTANCE.fromJson(
+                    "{\n" +
+                            "  \"plan\": {\n" +
+                            "    \"track\": {\n" +
+                            "      \"__default\": {\n" +
+                            "        \"enabled\": true\n" +
+                            "      }\n" +
+                            "    }\n" +
+                            "  }\n" +
+                            "}"));
+    verify(integration).track(payload);
+  }
+
+  @Test
+  public void defaultNewEventsDisabled() throws IOException {
+    TrackPayload payload = new TrackPayload.Builder()
+            .event("Install Attributed")
+            .userId("userId")
+            .build();
+    track(
+            payload,
+            "Mixpanel",
+            Cartographer.INSTANCE.fromJson(
+                    "{\n" +
+                            "  \"plan\": {\n" +
+                            "    \"track\": {\n" +
+                            "      \"__default\": {\n" +
+                            "        \"enabled\": false\n" +
+                            "      }\n" +
+                            "    }\n" +
+                            "  }\n" +
+                            "}"));
+    verify(integration, never()).track(payload);
+  }
+
+  @Test
+  public void defaultNewEventsDisabledSendToSegment() throws IOException {
+    TrackPayload payload = new TrackPayload.Builder()
+            .event("Install Attributed")
+            .userId("userId")
+            .build();
+    track(
+            payload,
+            "Segment.io",
+            Cartographer.INSTANCE.fromJson(
+                    "{\n" +
+                            "  \"plan\": {\n" +
+                            "    \"track\": {\n" +
+                            "      \"__default\": {\n" +
+                            "        \"enabled\": false\n" +
+                            "      }\n" +
+                            "    }\n" +
+                            "  }\n" +
+                            "}"));
+    verify(integration).track(payload);
+  }
+
+  @Test
+  public void eventPlanOverridesSchemaDefault() throws IOException {
+    TrackPayload payload = new TrackPayload.Builder()
+            .event("Install Attributed")
+            .userId("userId")
+            .build();
+    track(
+            payload,
+            "Mixpanel",
+            Cartographer.INSTANCE.fromJson(
+                    "{\n" +
+                            "  \"plan\": {\n" +
+                            "    \"track\": {\n" +
+                            "      \"__default\": {\n" +
+                            "        \"enabled\": true\n" +
+                            "      },\n" +
+                            "      \"Install Attributed\": {\n" +
+                            "        \"enabled\": false\n" +
+                            "      }\n" +
+                            "    }\n" +
+                            "  }\n" +
+                            "}"));
+    verify(integration, never()).track(payload);
+  }
 }