Make logging consistent with Apple SDK (#4919)

Author: samedson

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

@@ -55,7 +55,7 @@ internal class EventGDTLogger(private val transportFactoryProvider: Provider<Tra
 
   private fun encode(value: SessionEvent): ByteArray {
     val jsonEvent = SessionEvents.SESSION_EVENT_ENCODER.encode(value)
-    Log.d(TAG, "Encoded Session Start event $jsonEvent")
+    Log.d(TAG, "Session Event: $jsonEvent")
     return jsonEvent.toByteArray()
   }
 

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

@@ -49,7 +49,7 @@ internal constructor(
     if (appContext is Application) {
       appContext.registerActivityLifecycleCallbacks(sessionInitiator.activityLifecycleCallbacks)
     } else {
-      Log.w(
+      Log.e(
         TAG,
         "Failed to register lifecycle callbacks, unexpected context ${appContext.javaClass}."
       )

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

@@ -42,17 +42,17 @@ internal class SessionCoordinator(
         try {
           firebaseInstallations.id.await()
         } catch (ex: Exception) {
-          Log.w(TAG, "Session Installations Error", ex)
+          Log.e(TAG, "Error getting Firebase Installation ID: ${ex}. Using an empty ID")
           // Use an empty fid if there is any failure.
           ""
         }
 
       try {
         eventGDTLogger.log(sessionEvent)
 
-        Log.i(TAG, "Logged Session Start event: ${sessionEvent.sessionData.sessionId}")
+        Log.i(TAG, "Successfully logged Session Start event: ${sessionEvent.sessionData.sessionId}")
       } catch (e: RuntimeException) {
-        Log.w(TAG, "Failed to log Session Start event: ", e)
+        Log.e(TAG, "Error logging Session Start event to DataTransport: ", e)
       }
     }