/* * mxisd - Matrix Identity Server Daemon * Copyright (C) 2018 Kamax Sarl * * https://www.kamax.io/ * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . */ package io.kamax.mxisd.util; import java.util.Optional; import java.util.function.Supplier; import java.util.stream.Stream; public class OptionalUtil { public static Optional findFirst(Supplier>... suppliers) { return Stream.of(suppliers).map(Supplier::get).filter(Optional::isPresent).map(Optional::get).findFirst(); } }