Remove passthrough register method from FirebaseSessions since `F…

firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/CrashlyticsRegistrar.java

@@ -69,6 +69,6 @@ private FirebaseCrashlytics buildCrashlytics(ComponentContainer container) {
     FirebaseSessions firebaseSessions = container.get(FirebaseSessions.class);
 
     return FirebaseCrashlytics.init(
-        app, firebaseInstallations, firebaseSessions, nativeComponent, analyticsConnector);
+        app, firebaseInstallations, nativeComponent, analyticsConnector);
   }
 }

firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/FirebaseCrashlytics.java

@@ -41,7 +41,7 @@
 import com.google.firebase.crashlytics.internal.settings.SettingsController;
 import com.google.firebase.inject.Deferred;
 import com.google.firebase.installations.FirebaseInstallationsApi;
-import com.google.firebase.sessions.FirebaseSessions;
+import com.google.firebase.sessions.api.FirebaseSessionsDependencies;
 import java.util.List;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ExecutorService;
@@ -64,7 +64,6 @@ public class FirebaseCrashlytics {
   static @Nullable FirebaseCrashlytics init(
       @NonNull FirebaseApp app,
       @NonNull FirebaseInstallationsApi firebaseInstallationsApi,
-      @NonNull FirebaseSessions firebaseSessions,
       @NonNull Deferred<CrashlyticsNativeComponent> nativeComponent,
       @NonNull Deferred<AnalyticsConnector> analyticsConnector) {
 
@@ -93,7 +92,7 @@ public class FirebaseCrashlytics {
 
     CrashlyticsAppQualitySessionsSubscriber sessionsSubscriber =
         new CrashlyticsAppQualitySessionsSubscriber(arbiter, fileStore);
-    firebaseSessions.register(sessionsSubscriber);
+    FirebaseSessionsDependencies.register(sessionsSubscriber);
 
     final CrashlyticsCore core =
         new CrashlyticsCore(

firebase-perf/src/main/java/com/google/firebase/perf/FirebasePerfEarly.java

@@ -24,7 +24,7 @@
 import com.google.firebase.perf.metrics.AppStartTrace;
 import com.google.firebase.perf.session.PerfSession;
 import com.google.firebase.perf.session.SessionManager;
-import com.google.firebase.sessions.FirebaseSessions;
+import com.google.firebase.sessions.api.FirebaseSessionsDependencies;
 import com.google.firebase.sessions.api.SessionSubscriber;
 import java.util.concurrent.Executor;
 
@@ -38,10 +38,7 @@
 public class FirebasePerfEarly {
 
   public FirebasePerfEarly(
-      FirebaseApp app,
-      FirebaseSessions firebaseSessions,
-      @Nullable StartupTime startupTime,
-      Executor uiExecutor) {
+      FirebaseApp app, @Nullable StartupTime startupTime, Executor uiExecutor) {
     Context context = app.getApplicationContext();
 
     // Initialize ConfigResolver early for accessing device caching layer.
@@ -59,7 +56,7 @@ public FirebasePerfEarly(
     }
 
     // Register with Firebase sessions to receive updates about session changes.
-    firebaseSessions.register(
+    FirebaseSessionsDependencies.register(
         new SessionSubscriber() {
           @Override
           public void onSessionChanged(@NonNull SessionDetails sessionDetails) {

firebase-perf/src/main/java/com/google/firebase/perf/FirebasePerfRegistrar.java

@@ -79,7 +79,6 @@ public List<Component<?>> getComponents() {
                 container ->
                     new FirebasePerfEarly(
                         container.get(FirebaseApp.class),
-                        container.get(FirebaseSessions.class),
                         container.getProvider(StartupTime.class).get(),
                         container.get(uiExecutor)))
             .build(),

firebase-sessions/api.txt

@@ -1,18 +1,35 @@
 // Signature format: 2.0
-package com.google.firebase.sessions {
+package com.google.firebase.sessions.api {
 
-  public final class FirebaseSessions {
-    method @NonNull public static com.google.firebase.sessions.FirebaseSessions getInstance();
-    method @NonNull public static com.google.firebase.sessions.FirebaseSessions getInstance(@NonNull com.google.firebase.FirebaseApp app);
-    method public void register(@NonNull com.google.firebase.sessions.api.SessionSubscriber subscriber);
-    property @NonNull public static final com.google.firebase.sessions.FirebaseSessions instance;
-    field @NonNull public static final com.google.firebase.sessions.FirebaseSessions.Companion Companion;
+  public final class FirebaseSessionsDependencies {
+    method public void addDependency(@NonNull com.google.firebase.sessions.api.SessionSubscriber.Name subscriberName);
+    method public static void register(@NonNull com.google.firebase.sessions.api.SessionSubscriber subscriber);
+    field @NonNull public static final com.google.firebase.sessions.api.FirebaseSessionsDependencies INSTANCE;
   }
 
-  public static final class FirebaseSessions.Companion {
-    method @NonNull public com.google.firebase.sessions.FirebaseSessions getInstance();
-    method @NonNull public com.google.firebase.sessions.FirebaseSessions getInstance(@NonNull com.google.firebase.FirebaseApp app);
-    property @NonNull public final com.google.firebase.sessions.FirebaseSessions instance;
+  public interface SessionSubscriber {
+    method @NonNull public com.google.firebase.sessions.api.SessionSubscriber.Name getSessionSubscriberName();
+    method public boolean isDataCollectionEnabled();
+    method public void onSessionChanged(@NonNull com.google.firebase.sessions.api.SessionSubscriber.SessionDetails sessionDetails);
+    property public abstract boolean isDataCollectionEnabled;
+    property @NonNull public abstract com.google.firebase.sessions.api.SessionSubscriber.Name sessionSubscriberName;
+  }
+
+  public enum SessionSubscriber.Name {
+    method @NonNull public static com.google.firebase.sessions.api.SessionSubscriber.Name valueOf(@NonNull String name) throws java.lang.IllegalArgumentException;
+    method @NonNull public static com.google.firebase.sessions.api.SessionSubscriber.Name[] values();
+    enum_constant public static final com.google.firebase.sessions.api.SessionSubscriber.Name CRASHLYTICS;
+    enum_constant @Discouraged(message="This is for testing purposes only.") public static final com.google.firebase.sessions.api.SessionSubscriber.Name MATT_SAYS_HI;
+    enum_constant public static final com.google.firebase.sessions.api.SessionSubscriber.Name PERFORMANCE;
+  }
+
+  public static final class SessionSubscriber.SessionDetails {
+    ctor public SessionSubscriber.SessionDetails(@NonNull String sessionId);
+    method @NonNull public String component1();
+    method @NonNull public com.google.firebase.sessions.api.SessionSubscriber.SessionDetails copy(@NonNull String sessionId);
+    method @NonNull public String getSessionId();
+    property @NonNull public final String sessionId;
   }
 
 }
+

firebase-sessions/src/main/kotlin/com/google/firebase/sessions/FirebaseSessions.kt

@@ -21,16 +21,14 @@ import android.util.Log
 import com.google.firebase.Firebase
 import com.google.firebase.FirebaseApp
 import com.google.firebase.app
-import com.google.firebase.sessions.api.FirebaseSessionsDependencies
 import com.google.firebase.sessions.api.SessionSubscriber
 import com.google.firebase.sessions.settings.SessionsSettings
 import kotlin.coroutines.CoroutineContext
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.launch
 
-/** The [FirebaseSessions] API provides methods to register a [SessionSubscriber]. */
-class FirebaseSessions
-internal constructor(
+/** Responsible for initializing AQS */
+internal class FirebaseSessions(
   private val firebaseApp: FirebaseApp,
   private val settings: SessionsSettings,
   backgroundDispatcher: CoroutineContext,
@@ -63,23 +61,6 @@ internal constructor(
     }
   }
 
-  /** Register the [subscriber]. This must be called for every dependency. */
-  fun register(subscriber: SessionSubscriber) {
-    if (!settings.sessionsEnabled) {
-      Log.d(TAG, "Sessions SDK disabled. Ignoring dependency registration.")
-      return
-    }
-
-    FirebaseSessionsDependencies.register(subscriber)
-
-    Log.d(
-      TAG,
-      "Registering Sessions SDK subscriber with name: ${subscriber.sessionSubscriberName}, " +
-        "data collection enabled: ${subscriber.isDataCollectionEnabled}"
-    )
-  }
-
-  /** Calculate whether we should sample events using [sessionSettings] data. */
   companion object {
     private const val TAG = "FirebaseSessions"
 

firebase-sessions/src/main/kotlin/com/google/firebase/sessions/api/FirebaseSessionsDependencies.kt

@@ -53,7 +53,8 @@ object FirebaseSessionsDependencies {
    * Register and unlock the subscriber. This must be called before [getRegisteredSubscribers] can
    * return.
    */
-  internal fun register(subscriber: SessionSubscriber) {
+  @JvmStatic
+  fun register(subscriber: SessionSubscriber) {
     val subscriberName = subscriber.sessionSubscriberName
     val dependency = getDependency(subscriberName)
 

firebase-sessions/test-app/src/androidTest/kotlin/com/google/firebase/testing/sessions/FirebaseSessionsTest.kt

@@ -49,7 +49,7 @@ class FirebaseSessionsTest {
 
     // Add a fake dependency and register it, otherwise sessions will never send.
     val fakeSessionSubscriber = FakeSessionSubscriber()
-    FirebaseSessions.instance.register(fakeSessionSubscriber)
+    FirebaseSessionsDependencies.register(fakeSessionSubscriber)
 
     // Wait for the session start event to send.
     Thread.sleep(TIME_TO_LOG_SESSION)