fun loadAppGateKeepersAsync()

in facebook-core/src/main/java/com/facebook/internal/FetchedAppGateKeepersManager.kt [75:125]
48 lines of code
10 McCabe index (conditional complexity)

  fun loadAppGateKeepersAsync(callback: Callback?) {
    if (callback != null) {
      callbacks.add(callback)
    }
    val applicationId = FacebookSdk.getApplicationId()
    if (isTimestampValid(timestamp) && fetchedAppGateKeepers.containsKey(applicationId)) {
      pollCallbacks()
      return
    }
    val context = FacebookSdk.getApplicationContext()
    val gateKeepersKey = String.format(APP_GATEKEEPERS_PREFS_KEY_FORMAT, applicationId)
    if (context == null) {
      return
    }

    // See if we had a cached copy of gatekeepers and use that immediately
    val gateKeepersSharedPrefs =
        context.getSharedPreferences(APP_GATEKEEPERS_PREFS_STORE, Context.MODE_PRIVATE)
    val gateKeepersJSONString = gateKeepersSharedPrefs.getString(gateKeepersKey, null)
    if (!Utility.isNullOrEmpty(gateKeepersJSONString)) {
      var gateKeepersJSON: JSONObject? = null
      try {
        gateKeepersJSON = JSONObject(gateKeepersJSONString)
      } catch (je: JSONException) {
        Utility.logd(Utility.LOG_TAG, je)
      }
      if (gateKeepersJSON != null) {
        parseAppGateKeepersFromJSON(applicationId, gateKeepersJSON)
      }
    }
    val executor = FacebookSdk.getExecutor() ?: return
    if (!isLoading.compareAndSet(false, true)) {
      return
    }
    executor.execute {
      val gateKeepersResultJSON = getAppGateKeepersQueryResponse(applicationId)
      if (gateKeepersResultJSON.length() != 0) {
        parseAppGateKeepersFromJSON(applicationId, gateKeepersResultJSON)
        val gateKeepersSharedPrefs =
            context.getSharedPreferences(APP_GATEKEEPERS_PREFS_STORE, Context.MODE_PRIVATE)
        gateKeepersSharedPrefs
            .edit()
            .putString(gateKeepersKey, gateKeepersResultJSON.toString())
            .apply()
        // Update timestamp only when the GKs are successfully fetched and stored
        timestamp = System.currentTimeMillis()
      }
      pollCallbacks()
      isLoading.set(false)
    }
  }