Potential refactor

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

@@ -151,7 +151,6 @@ public static FirebasePerformance getInstance() {
    * @param firebaseRemoteConfigProvider The {@link Provider} for FirebaseRemoteConfig instance.
    * @param firebaseInstallationsApi The FirebaseInstallationsApi instance.
    * @param transportFactoryProvider The {@link Provider} for the the {@link TransportFactory}.
-   * @param remoteConfigManager The RemoteConfigManager instance.
    * @param configResolver The ConfigResolver instance.
    * @param sessionManager The SessionManager instance.
    */
@@ -162,7 +161,6 @@ public static FirebasePerformance getInstance() {
       Provider<RemoteConfigComponent> firebaseRemoteConfigProvider,
       FirebaseInstallationsApi firebaseInstallationsApi,
       Provider<TransportFactory> transportFactoryProvider,
-      RemoteConfigManager remoteConfigManager,
       ConfigResolver configResolver,
       SessionManager sessionManager) {
 
@@ -185,8 +183,8 @@ public static FirebasePerformance getInstance() {
     // TODO(b/110178816): Explore moving off of main thread.
     mMetadataBundle = extractMetadata(appContext);
 
-    remoteConfigManager.setFirebaseRemoteConfigProvider(firebaseRemoteConfigProvider);
     this.configResolver = configResolver;
+    this.configResolver.getRemoteConfigManager().setFirebaseRemoteConfigProvider(firebaseRemoteConfigProvider);
     this.configResolver.setMetadataBundle(mMetadataBundle);
     this.configResolver.setApplicationContext(appContext);
     sessionManager.setApplicationContext(appContext);

firebase-perf/src/main/java/com/google/firebase/perf/config/ConfigResolver.java

@@ -58,7 +58,7 @@ public class ConfigResolver {
   private static volatile ConfigResolver instance;
 
   // Configuration Storage objects.
-  private final RemoteConfigManager remoteConfigManager;
+  private RemoteConfigManager remoteConfigManager;
   private ImmutableBundle metadataBundle;
   private DeviceCacheManager deviceCacheManager;
 
@@ -75,7 +75,7 @@ public ConfigResolver(
       @Nullable ImmutableBundle metadataBundle,
       @Nullable DeviceCacheManager deviceCacheManager) {
     this.remoteConfigManager =
-        remoteConfigManager == null ? RemoteConfigManager.getInstance() : remoteConfigManager;
+        remoteConfigManager != null ? remoteConfigManager : new RemoteConfigManager();
     this.metadataBundle = metadataBundle == null ? new ImmutableBundle() : metadataBundle;
     this.deviceCacheManager =
         deviceCacheManager == null ? DeviceCacheManager.getInstance() : deviceCacheManager;
@@ -98,6 +98,11 @@ public void setDeviceCacheManager(DeviceCacheManager deviceCacheManager) {
     this.deviceCacheManager = deviceCacheManager;
   }
 
+  @VisibleForTesting
+  public void setRemoteConfigManager(RemoteConfigManager remoteConfigManager) {
+    this.remoteConfigManager = remoteConfigManager;
+  }
+
   public void setContentProviderContext(Context context) {
     setApplicationContext(context.getApplicationContext());
   }
@@ -916,4 +921,8 @@ private boolean isGaugeCaptureFrequencyMsValid(long frequencyMilliseconds) {
   private boolean isSessionsMaxDurationMinutesValid(long maxDurationMin) {
     return maxDurationMin > 0;
   }
+
+  public RemoteConfigManager getRemoteConfigManager() {
+    return remoteConfigManager;
+  }
 }

firebase-perf/src/main/java/com/google/firebase/perf/config/RemoteConfigManager.java

@@ -47,7 +47,6 @@
 public class RemoteConfigManager {
 
   private static final AndroidLogger logger = AndroidLogger.getInstance();
-  private static final RemoteConfigManager instance = new RemoteConfigManager();
   private static final String FIREPERF_FRC_NAMESPACE_NAME = "fireperf";
   private static final long TIME_AFTER_WHICH_A_FETCH_IS_CONSIDERED_STALE_MS =
       TimeUnit.HOURS.toMillis(12);
@@ -67,7 +66,7 @@ public class RemoteConfigManager {
 
   // TODO(b/258263016): Migrate to go/firebase-android-executors
   @SuppressLint("ThreadPoolCreation")
-  private RemoteConfigManager() {
+  public RemoteConfigManager() {
     this(
         DeviceCacheManager.getInstance(),
         new ThreadPoolExecutor(
@@ -96,11 +95,6 @@ private RemoteConfigManager() {
     this.remoteConfigFetchDelayInMs = remoteConfigFetchDelayInMs;
   }
 
-  /** Gets the singleton instance. */
-  public static RemoteConfigManager getInstance() {
-    return instance;
-  }
-
   /**
    * Sets the {@link Provider} for {@link RemoteConfigComponent} from which we can extract the
    * {@link FirebaseRemoteConfig} instance whenever it gets available.

firebase-perf/src/main/java/com/google/firebase/perf/injection/modules/FirebasePerformanceModule.java

@@ -66,11 +66,6 @@ Provider<TransportFactory> providesTransportFactoryProvider() {
     return transportFactoryProvider;
   }
 
-  @Provides
-  RemoteConfigManager providesRemoteConfigManager() {
-    return RemoteConfigManager.getInstance();
-  }
-
   @Provides
   ConfigResolver providesConfigResolver() {
     return ConfigResolver.getInstance();

firebase-perf/src/test/java/com/google/firebase/perf/FirebasePerformanceTest.java

@@ -63,7 +63,7 @@ public class FirebasePerformanceTest {
       "firebase_performance_collection_deactivated";
   private static final String FIREPERF_ENABLED_KEY = "firebase_performance_collection_enabled";
 
-  @Nullable private RemoteConfigManager spyRemoteConfigManager = null;
+  @Nullable private RemoteConfigManager spyRemoteConfigManager = spy(new RemoteConfigManager());
   @Nullable private ConfigResolver spyConfigResolver = null;
 
   @Nullable private SessionManager spySessionManager = null;
@@ -100,9 +100,10 @@ public void setUp() throws NameNotFoundException {
     sharedPreferences.edit().clear().commit();
     DeviceCacheManager.clearInstance();
 
-    spyRemoteConfigManager = spy(RemoteConfigManager.getInstance());
     ConfigResolver.clearInstance();
-    spyConfigResolver = spy(ConfigResolver.getInstance());
+    ConfigResolver configResolver = ConfigResolver.getInstance();
+    configResolver.setRemoteConfigManager(spyRemoteConfigManager);
+    spyConfigResolver = spy(configResolver);
 
     spySessionManager = spy(SessionManager.getInstance());
     fakeDirectExecutorService = new FakeDirectExecutorService();
@@ -470,6 +471,7 @@ public void firebasePerformanceInitialization_providesRcProvider_remoteConfigMan
             () -> FirebaseApp.getInstance().get(TransportFactory.class));
 
     verify(spyRemoteConfigManager).setFirebaseRemoteConfigProvider(firebaseRemoteConfigProvider);
+    assertThat(spyRemoteConfigManager.isFirebaseRemoteConfigAvailable()).isTrue();
   }
 
   @Test
@@ -577,7 +579,6 @@ private FirebasePerformance initializeFirebasePerformancePreferences(
         firebaseRemoteConfigProvider,
         mock(FirebaseInstallationsApi.class),
         transportFactoryProvider,
-        spyRemoteConfigManager,
         spyConfigResolver,
         spySessionManager);
   }

firebase-perf/src/test/java/com/google/firebase/perf/config/RemoteConfigManagerTest.java

@@ -76,8 +76,8 @@ public void setUp() {
 
   @Test
   public void getInstance_verifiesSingleton() {
-    RemoteConfigManager instanceOne = RemoteConfigManager.getInstance();
-    RemoteConfigManager instanceTwo = RemoteConfigManager.getInstance();
+    RemoteConfigManager instanceOne = ConfigResolver.getInstance().getRemoteConfigManager();
+    RemoteConfigManager instanceTwo = ConfigResolver.getInstance().getRemoteConfigManager();
 
     assertThat(instanceOne).isSameInstanceAs(instanceTwo);
   }