private Init maybeWrapInit()

in mobius-core/src/main/java/com/spotify/mobius/MobiusLoopController.java [52:71]

• 11 lines of code
• 3 McCabe index (conditional complexity)

  private Init<M, F> maybeWrapInit(
      @Nullable Init<M, F> delegate, MobiusLoop.Factory<M, E, F> loopFactory) {
    if (delegate == null) {
      return null;
    }

    // In this configuration, the controller has an `Init` function, which it will invoke when
    // starting the loop (this means the loop cannot also have an `Init`; or an exception will be
    // thrown). We want to ensure that the same Mobius.Logger is used for logging before and after
    // Init as the rest of the loop events. The APIs don't allow us to do that in a nice way, so
    // this casting is a hack around that issue. In practice, the below instanceof check will never
    // fail.
    if (!(loopFactory instanceof Mobius.Builder)) {
      return delegate;
    }

    Mobius.Builder<M, E, F> builder = (Mobius.Builder<M, E, F>) loopFactory;

    return new LoggingInit<>(delegate, builder.getLogger());
  }