Callbacks.java

public interface Callback<T> {
        default void onSuccessfulResponse(ResponseBody<T> responseBody) {
        }

        default void onBadRequest(List<ErrorModel> errors) {
        }

        default void onServerError(Response response) {
        }

        default void onUnAuthorized() {
        }

        default void onForbidden() {
        }

        default void onFailure(boolean cancelled) {
        }

        default void onEverytime() {
        }
    }

    public interface SimpleCallback<T> extends Callback<T> {

        @Override
        default void onBadRequest(List<ErrorModel> errors) {
            onNoSuccess();
        }

        @Override
        default void onServerError(Response response) {
            onNoSuccess();
        }

        @Override
        default void onUnAuthorized() {
            onNoSuccess();
        }

        @Override
        default void onForbidden() {
            onNoSuccess();
        }

        @Override
        default void onFailure(boolean cancelled) {
            onNoSuccess();
        }

        void onNoSuccess();
    }

    public interface DoNothingCallback<T> extends SimpleCallback<T> {
        @Override
        default void onNoSuccess() {
        }
    }