470 lines
20 KiB
Java
470 lines
20 KiB
Java
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package com.google.common.util.concurrent;
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import com.google.common.base.Function;
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import com.google.common.base.MoreObjects;
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import com.google.common.base.Preconditions;
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import com.google.common.collect.ImmutableList;
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import com.google.common.util.concurrent.AbstractFuture;
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import com.google.common.util.concurrent.CollectionFuture;
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import com.google.common.util.concurrent.ImmediateFuture;
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import com.google.common.util.concurrent.internal.InternalFutureFailureAccess;
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import com.google.common.util.concurrent.internal.InternalFutures;
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import java.util.Collection;
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import java.util.List;
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import java.util.concurrent.Callable;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.Executor;
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import java.util.concurrent.Future;
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import java.util.concurrent.ScheduledExecutorService;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.TimeoutException;
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import java.util.concurrent.atomic.AtomicInteger;
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/* loaded from: classes2.dex */
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public final class Futures extends GwtFuturesCatchingSpecialization {
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private Futures() {
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}
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public static <V> ListenableFuture<V> immediateFuture(V v) {
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if (v == null) {
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return (ListenableFuture<V>) ImmediateFuture.NULL;
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}
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return new ImmediateFuture(v);
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}
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public static ListenableFuture<Void> immediateVoidFuture() {
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return ImmediateFuture.NULL;
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}
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public static <V> ListenableFuture<V> immediateFailedFuture(Throwable th) {
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Preconditions.checkNotNull(th);
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return new ImmediateFuture.ImmediateFailedFuture(th);
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}
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public static <V> ListenableFuture<V> immediateCancelledFuture() {
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return new ImmediateFuture.ImmediateCancelledFuture();
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}
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public static <O> ListenableFuture<O> submit(Callable<O> callable, Executor executor) {
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TrustedListenableFutureTask create = TrustedListenableFutureTask.create(callable);
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executor.execute(create);
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return create;
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}
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public static ListenableFuture<Void> submit(Runnable runnable, Executor executor) {
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TrustedListenableFutureTask create = TrustedListenableFutureTask.create(runnable, null);
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executor.execute(create);
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return create;
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}
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public static <O> ListenableFuture<O> submitAsync(AsyncCallable<O> asyncCallable, Executor executor) {
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TrustedListenableFutureTask create = TrustedListenableFutureTask.create(asyncCallable);
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executor.execute(create);
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return create;
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}
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public static <O> ListenableFuture<O> scheduleAsync(AsyncCallable<O> asyncCallable, long j, TimeUnit timeUnit, ScheduledExecutorService scheduledExecutorService) {
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TrustedListenableFutureTask create = TrustedListenableFutureTask.create(asyncCallable);
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create.addListener(new Runnable(scheduledExecutorService.schedule(create, j, timeUnit)) { // from class: com.google.common.util.concurrent.Futures.1
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final Future val$scheduled;
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{
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this.val$scheduled = r1;
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}
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@Override // java.lang.Runnable
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public void run() {
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this.val$scheduled.cancel(false);
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}
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}, MoreExecutors.directExecutor());
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return create;
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}
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public static <V, X extends Throwable> ListenableFuture<V> catching(ListenableFuture<? extends V> listenableFuture, Class<X> cls, Function<? super X, ? extends V> function, Executor executor) {
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return AbstractCatchingFuture.create(listenableFuture, cls, function, executor);
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}
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public static <V, X extends Throwable> ListenableFuture<V> catchingAsync(ListenableFuture<? extends V> listenableFuture, Class<X> cls, AsyncFunction<? super X, ? extends V> asyncFunction, Executor executor) {
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return AbstractCatchingFuture.create(listenableFuture, cls, asyncFunction, executor);
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}
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public static <V> ListenableFuture<V> withTimeout(ListenableFuture<V> listenableFuture, long j, TimeUnit timeUnit, ScheduledExecutorService scheduledExecutorService) {
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return listenableFuture.isDone() ? listenableFuture : TimeoutFuture.create(listenableFuture, j, timeUnit, scheduledExecutorService);
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}
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public static <I, O> ListenableFuture<O> transformAsync(ListenableFuture<I> listenableFuture, AsyncFunction<? super I, ? extends O> asyncFunction, Executor executor) {
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return AbstractTransformFuture.create(listenableFuture, asyncFunction, executor);
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}
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public static <I, O> ListenableFuture<O> transform(ListenableFuture<I> listenableFuture, Function<? super I, ? extends O> function, Executor executor) {
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return AbstractTransformFuture.create(listenableFuture, function, executor);
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}
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public static <I, O> Future<O> lazyTransform(Future<I> future, Function<? super I, ? extends O> function) {
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Preconditions.checkNotNull(future);
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Preconditions.checkNotNull(function);
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return new Future<O>(future, function) { // from class: com.google.common.util.concurrent.Futures.2
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final Function val$function;
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final Future val$input;
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{
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this.val$input = future;
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this.val$function = function;
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}
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@Override // java.util.concurrent.Future
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public boolean cancel(boolean z) {
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return this.val$input.cancel(z);
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}
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@Override // java.util.concurrent.Future
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public boolean isCancelled() {
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return this.val$input.isCancelled();
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}
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@Override // java.util.concurrent.Future
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public boolean isDone() {
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return this.val$input.isDone();
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}
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@Override // java.util.concurrent.Future
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public O get() throws InterruptedException, ExecutionException {
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return applyTransformation(this.val$input.get());
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}
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@Override // java.util.concurrent.Future
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public O get(long j, TimeUnit timeUnit) throws InterruptedException, ExecutionException, TimeoutException {
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return applyTransformation(this.val$input.get(j, timeUnit));
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}
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private O applyTransformation(I i) throws ExecutionException {
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try {
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return (O) this.val$function.apply(i);
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} catch (Throwable th) {
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throw new ExecutionException(th);
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}
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}
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};
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}
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@SafeVarargs
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public static <V> ListenableFuture<List<V>> allAsList(ListenableFuture<? extends V>... listenableFutureArr) {
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return new CollectionFuture.ListFuture(ImmutableList.copyOf(listenableFutureArr), true);
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}
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public static <V> ListenableFuture<List<V>> allAsList(Iterable<? extends ListenableFuture<? extends V>> iterable) {
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return new CollectionFuture.ListFuture(ImmutableList.copyOf(iterable), true);
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}
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@SafeVarargs
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public static <V> FutureCombiner<V> whenAllComplete(ListenableFuture<? extends V>... listenableFutureArr) {
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return new FutureCombiner<>(false, ImmutableList.copyOf(listenableFutureArr));
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}
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public static <V> FutureCombiner<V> whenAllComplete(Iterable<? extends ListenableFuture<? extends V>> iterable) {
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return new FutureCombiner<>(false, ImmutableList.copyOf(iterable));
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}
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@SafeVarargs
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public static <V> FutureCombiner<V> whenAllSucceed(ListenableFuture<? extends V>... listenableFutureArr) {
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return new FutureCombiner<>(true, ImmutableList.copyOf(listenableFutureArr));
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}
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public static <V> FutureCombiner<V> whenAllSucceed(Iterable<? extends ListenableFuture<? extends V>> iterable) {
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return new FutureCombiner<>(true, ImmutableList.copyOf(iterable));
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}
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/* loaded from: classes2.dex */
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public static final class FutureCombiner<V> {
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private final boolean allMustSucceed;
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private final ImmutableList<ListenableFuture<? extends V>> futures;
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private FutureCombiner(boolean z, ImmutableList<ListenableFuture<? extends V>> immutableList) {
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this.allMustSucceed = z;
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this.futures = immutableList;
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}
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public final <C> ListenableFuture<C> callAsync(AsyncCallable<C> asyncCallable, Executor executor) {
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return new CombinedFuture(this.futures, this.allMustSucceed, executor, asyncCallable);
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}
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public final <C> ListenableFuture<C> call(Callable<C> callable, Executor executor) {
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return new CombinedFuture(this.futures, this.allMustSucceed, executor, callable);
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}
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public final ListenableFuture<?> run(Runnable runnable, Executor executor) {
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return call(new Callable<Void>(this, runnable) { // from class: com.google.common.util.concurrent.Futures.FutureCombiner.1
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final Runnable val$combiner;
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{
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this.val$combiner = runnable;
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}
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@Override // java.util.concurrent.Callable
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public Void call() throws Exception {
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this.val$combiner.run();
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return null;
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}
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}, executor);
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}
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}
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public static <V> ListenableFuture<V> nonCancellationPropagating(ListenableFuture<V> listenableFuture) {
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if (listenableFuture.isDone()) {
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return listenableFuture;
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}
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NonCancellationPropagatingFuture nonCancellationPropagatingFuture = new NonCancellationPropagatingFuture(listenableFuture);
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listenableFuture.addListener(nonCancellationPropagatingFuture, MoreExecutors.directExecutor());
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return nonCancellationPropagatingFuture;
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}
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/* loaded from: classes2.dex */
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static final class NonCancellationPropagatingFuture<V> extends AbstractFuture.TrustedFuture<V> implements Runnable {
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private ListenableFuture<V> delegate;
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NonCancellationPropagatingFuture(ListenableFuture<V> listenableFuture) {
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this.delegate = listenableFuture;
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}
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@Override // java.lang.Runnable
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public final void run() {
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ListenableFuture<V> listenableFuture = this.delegate;
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if (listenableFuture != null) {
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setFuture(listenableFuture);
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}
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}
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/* JADX INFO: Access modifiers changed from: protected */
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@Override // com.google.common.util.concurrent.AbstractFuture
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public final String pendingToString() {
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ListenableFuture<V> listenableFuture = this.delegate;
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if (listenableFuture == null) {
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return null;
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}
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String valueOf = String.valueOf(listenableFuture);
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StringBuilder sb = new StringBuilder(String.valueOf(valueOf).length() + 11);
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sb.append("delegate=[");
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sb.append(valueOf);
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sb.append("]");
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return sb.toString();
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}
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/* JADX INFO: Access modifiers changed from: protected */
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@Override // com.google.common.util.concurrent.AbstractFuture
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public final void afterDone() {
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this.delegate = null;
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}
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}
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@SafeVarargs
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public static <V> ListenableFuture<List<V>> successfulAsList(ListenableFuture<? extends V>... listenableFutureArr) {
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return new CollectionFuture.ListFuture(ImmutableList.copyOf(listenableFutureArr), false);
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}
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public static <V> ListenableFuture<List<V>> successfulAsList(Iterable<? extends ListenableFuture<? extends V>> iterable) {
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return new CollectionFuture.ListFuture(ImmutableList.copyOf(iterable), false);
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}
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public static <T> ImmutableList<ListenableFuture<T>> inCompletionOrder(Iterable<? extends ListenableFuture<? extends T>> iterable) {
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Collection copyOf;
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if (iterable instanceof Collection) {
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copyOf = (Collection) iterable;
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} else {
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copyOf = ImmutableList.copyOf(iterable);
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}
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ListenableFuture[] listenableFutureArr = (ListenableFuture[]) copyOf.toArray(new ListenableFuture[copyOf.size()]);
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InCompletionOrderState inCompletionOrderState = new InCompletionOrderState(listenableFutureArr);
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ImmutableList.Builder builder = ImmutableList.builder();
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for (int i = 0; i < listenableFutureArr.length; i++) {
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builder.add((ImmutableList.Builder) new InCompletionOrderFuture(inCompletionOrderState));
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}
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ImmutableList<ListenableFuture<T>> build = builder.build();
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for (int i2 = 0; i2 < listenableFutureArr.length; i2++) {
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listenableFutureArr[i2].addListener(new Runnable(inCompletionOrderState, build, i2) { // from class: com.google.common.util.concurrent.Futures.3
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final ImmutableList val$delegates;
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final int val$localI;
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final InCompletionOrderState val$state;
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{
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this.val$state = inCompletionOrderState;
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this.val$delegates = build;
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this.val$localI = i2;
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}
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@Override // java.lang.Runnable
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public void run() {
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this.val$state.recordInputCompletion(this.val$delegates, this.val$localI);
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}
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}, MoreExecutors.directExecutor());
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}
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return build;
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}
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/* loaded from: classes2.dex */
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static final class InCompletionOrderFuture<T> extends AbstractFuture<T> {
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private InCompletionOrderState<T> state;
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private InCompletionOrderFuture(InCompletionOrderState<T> inCompletionOrderState) {
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this.state = inCompletionOrderState;
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}
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@Override // com.google.common.util.concurrent.AbstractFuture, java.util.concurrent.Future
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public final boolean cancel(boolean z) {
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InCompletionOrderState<T> inCompletionOrderState = this.state;
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if (!super.cancel(z)) {
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return false;
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}
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inCompletionOrderState.recordOutputCancellation(z);
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return true;
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}
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/* JADX INFO: Access modifiers changed from: protected */
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@Override // com.google.common.util.concurrent.AbstractFuture
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public final String pendingToString() {
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InCompletionOrderState<T> inCompletionOrderState = this.state;
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if (inCompletionOrderState == null) {
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return null;
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}
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int length = ((InCompletionOrderState) inCompletionOrderState).inputFutures.length;
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int i = ((InCompletionOrderState) inCompletionOrderState).incompleteOutputCount.get();
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StringBuilder sb = new StringBuilder(49);
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sb.append("inputCount=[");
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sb.append(length);
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sb.append("], remaining=[");
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sb.append(i);
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sb.append("]");
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return sb.toString();
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}
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/* JADX INFO: Access modifiers changed from: protected */
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@Override // com.google.common.util.concurrent.AbstractFuture
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public final void afterDone() {
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this.state = null;
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}
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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/* loaded from: classes2.dex */
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public static final class InCompletionOrderState<T> {
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private volatile int delegateIndex;
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private final AtomicInteger incompleteOutputCount;
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private final ListenableFuture<? extends T>[] inputFutures;
|
||
|
|
private boolean shouldInterrupt;
|
||
|
|
private boolean wasCancelled;
|
||
|
|
|
||
|
|
private InCompletionOrderState(ListenableFuture<? extends T>[] listenableFutureArr) {
|
||
|
|
this.wasCancelled = false;
|
||
|
|
this.shouldInterrupt = true;
|
||
|
|
this.delegateIndex = 0;
|
||
|
|
this.inputFutures = listenableFutureArr;
|
||
|
|
this.incompleteOutputCount = new AtomicInteger(listenableFutureArr.length);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* JADX INFO: Access modifiers changed from: private */
|
||
|
|
public void recordOutputCancellation(boolean z) {
|
||
|
|
this.wasCancelled = true;
|
||
|
|
if (!z) {
|
||
|
|
this.shouldInterrupt = false;
|
||
|
|
}
|
||
|
|
recordCompletion();
|
||
|
|
}
|
||
|
|
|
||
|
|
/* JADX INFO: Access modifiers changed from: private */
|
||
|
|
public void recordInputCompletion(ImmutableList<AbstractFuture<T>> immutableList, int i) {
|
||
|
|
ListenableFuture<? extends T>[] listenableFutureArr = this.inputFutures;
|
||
|
|
ListenableFuture<? extends T> listenableFuture = listenableFutureArr[i];
|
||
|
|
listenableFutureArr[i] = null;
|
||
|
|
for (int i2 = this.delegateIndex; i2 < immutableList.size(); i2++) {
|
||
|
|
if (immutableList.get(i2).setFuture(listenableFuture)) {
|
||
|
|
recordCompletion();
|
||
|
|
this.delegateIndex = i2 + 1;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
this.delegateIndex = immutableList.size();
|
||
|
|
}
|
||
|
|
|
||
|
|
private void recordCompletion() {
|
||
|
|
if (this.incompleteOutputCount.decrementAndGet() == 0 && this.wasCancelled) {
|
||
|
|
for (ListenableFuture<? extends T> listenableFuture : this.inputFutures) {
|
||
|
|
if (listenableFuture != null) {
|
||
|
|
listenableFuture.cancel(this.shouldInterrupt);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public static <V> void addCallback(ListenableFuture<V> listenableFuture, FutureCallback<? super V> futureCallback, Executor executor) {
|
||
|
|
Preconditions.checkNotNull(futureCallback);
|
||
|
|
listenableFuture.addListener(new CallbackListener(listenableFuture, futureCallback), executor);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* JADX INFO: Access modifiers changed from: package-private */
|
||
|
|
/* loaded from: classes2.dex */
|
||
|
|
public static final class CallbackListener<V> implements Runnable {
|
||
|
|
final FutureCallback<? super V> callback;
|
||
|
|
final Future<V> future;
|
||
|
|
|
||
|
|
CallbackListener(Future<V> future, FutureCallback<? super V> futureCallback) {
|
||
|
|
this.future = future;
|
||
|
|
this.callback = futureCallback;
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override // java.lang.Runnable
|
||
|
|
public final void run() {
|
||
|
|
Throwable tryInternalFastPathGetFailure;
|
||
|
|
Future<V> future = this.future;
|
||
|
|
if ((future instanceof InternalFutureFailureAccess) && (tryInternalFastPathGetFailure = InternalFutures.tryInternalFastPathGetFailure((InternalFutureFailureAccess) future)) != null) {
|
||
|
|
this.callback.onFailure(tryInternalFastPathGetFailure);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
try {
|
||
|
|
this.callback.onSuccess(Futures.getDone(this.future));
|
||
|
|
} catch (Error e) {
|
||
|
|
e = e;
|
||
|
|
this.callback.onFailure(e);
|
||
|
|
} catch (RuntimeException e2) {
|
||
|
|
e = e2;
|
||
|
|
this.callback.onFailure(e);
|
||
|
|
} catch (ExecutionException e3) {
|
||
|
|
this.callback.onFailure(e3.getCause());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public final String toString() {
|
||
|
|
return MoreObjects.toStringHelper(this).addValue(this.callback).toString();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public static <V> V getDone(Future<V> future) throws ExecutionException {
|
||
|
|
Preconditions.checkState(future.isDone(), "Future was expected to be done: %s", future);
|
||
|
|
return (V) Uninterruptibles.getUninterruptibly(future);
|
||
|
|
}
|
||
|
|
|
||
|
|
public static <V, X extends Exception> V getChecked(Future<V> future, Class<X> cls) throws Exception {
|
||
|
|
return (V) FuturesGetChecked.getChecked(future, cls);
|
||
|
|
}
|
||
|
|
|
||
|
|
public static <V, X extends Exception> V getChecked(Future<V> future, Class<X> cls, long j, TimeUnit timeUnit) throws Exception {
|
||
|
|
return (V) FuturesGetChecked.getChecked(future, cls, j, timeUnit);
|
||
|
|
}
|
||
|
|
|
||
|
|
public static <V> V getUnchecked(Future<V> future) {
|
||
|
|
Preconditions.checkNotNull(future);
|
||
|
|
try {
|
||
|
|
return (V) Uninterruptibles.getUninterruptibly(future);
|
||
|
|
} catch (ExecutionException e) {
|
||
|
|
wrapAndThrowUnchecked(e.getCause());
|
||
|
|
throw new AssertionError();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private static void wrapAndThrowUnchecked(Throwable th) {
|
||
|
|
if (th instanceof Error) {
|
||
|
|
throw new ExecutionError((Error) th);
|
||
|
|
}
|
||
|
|
throw new UncheckedExecutionException(th);
|
||
|
|
}
|
||
|
|
}
|