2 * Copyright (c) 2010-2022 Contributors to the openHAB project
4 * See the NOTICE file(s) distributed with this work for additional
7 * This program and the accompanying materials are made available under the
8 * terms of the Eclipse Public License 2.0 which is available at
9 * http://www.eclipse.org/legal/epl-2.0
11 * SPDX-License-Identifier: EPL-2.0
13 package org.openhab.binding.netatmo.internal;
15 import java.util.Collection;
16 import java.util.Collections;
17 import java.util.List;
18 import java.util.Optional;
19 import java.util.stream.Stream;
21 import org.eclipse.jdt.annotation.NonNullByDefault;
24 * {@link APIUtils} provides util methods for the usage of the generated API classes.
26 * @author Sven Strohschein - Initial contribution
29 public final class APIUtils {
34 public static <T> Stream<T> nonNullStream(Collection<T> collection) {
35 return Optional.ofNullable(collection).stream().flatMap(Collection::stream);
38 public static <T> List<T> nonNullList(List<T> list) {
39 return Optional.ofNullable(list).orElse(Collections.emptyList());