1 /* 2 * Copyright 2022 Google LLC 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.google.android.libraries.mobiledatadownload.tracing; 17 18 import com.google.common.util.concurrent.Futures; 19 import com.google.common.util.concurrent.ListenableFuture; 20 import java.util.List; 21 import org.checkerframework.checker.nullness.qual.Nullable; 22 23 /** 24 * Wrapper around {@link Futures} and {@link PropagatedFutures} that returns {@link 25 * PropagatedFluentFuture}. 26 */ 27 public final class PropagatedFluentFutures { 28 PropagatedFluentFutures()29 private PropagatedFluentFutures() {} 30 31 /** 32 * @see Futures#allAsList(ListenableFuture[]) 33 */ allAsList( ListenableFuture<? extends T>.... futures)34 public static <T extends @Nullable Object> PropagatedFluentFuture<List<T>> allAsList( 35 ListenableFuture<? extends T>... futures) { 36 return PropagatedFluentFuture.from(Futures.allAsList(futures)); 37 } 38 39 /** See {@link Futures#successfulAsList(ListenableFuture[])}. */ 40 public static <T extends @Nullable Object> successfulAsList( ListenableFuture<? extends T>.... futures)41 PropagatedFluentFuture<List<@Nullable T>> successfulAsList( 42 ListenableFuture<? extends T>... futures) { 43 return PropagatedFluentFuture.from(Futures.successfulAsList(futures)); 44 } 45 } 46