author | chegar |
Thu, 21 Dec 2017 16:58:51 +0000 | |
changeset 48408 | 4f830b447edf |
parent 48379 | 5382baab8371 |
child 56008 | bbd688c6fbbb |
permissions | -rw-r--r-- |
48083 | 1 |
/* |
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* Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package jdk.incubator.http; |
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import java.io.IOException; |
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import java.io.InputStream; |
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30 |
import java.lang.System.Logger.Level; |
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import java.nio.ByteBuffer; |
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import java.nio.channels.FileChannel; |
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import java.nio.file.OpenOption; |
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import java.nio.file.Path; |
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import java.security.AccessControlContext; |
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import java.security.AccessController; |
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import java.security.PrivilegedActionException; |
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import java.security.PrivilegedExceptionAction; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Objects; |
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import java.util.Optional; |
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import java.util.concurrent.ArrayBlockingQueue; |
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import java.util.concurrent.BlockingQueue; |
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import java.util.concurrent.CompletableFuture; |
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import java.util.concurrent.CompletionStage; |
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import java.util.concurrent.ConcurrentHashMap; |
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import java.util.concurrent.Flow; |
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48408
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
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50 |
import java.util.concurrent.Flow.Subscriber; |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
51 |
import java.util.concurrent.Flow.Subscription; |
48083 | 52 |
import java.util.concurrent.atomic.AtomicBoolean; |
53 |
import java.util.function.Consumer; |
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import java.util.function.Function; |
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import jdk.incubator.http.internal.common.MinimalFuture; |
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import jdk.incubator.http.internal.common.Utils; |
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||
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class ResponseSubscribers { |
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60 |
static class ConsumerSubscriber implements HttpResponse.BodySubscriber<Void> { |
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private final Consumer<Optional<byte[]>> consumer; |
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private Flow.Subscription subscription; |
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private final CompletableFuture<Void> result = new MinimalFuture<>(); |
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private final AtomicBoolean subscribed = new AtomicBoolean(); |
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66 |
ConsumerSubscriber(Consumer<Optional<byte[]>> consumer) { |
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48379
5382baab8371
8193698: Null handling in BodyPublisher, BodyHandler, and BodySubscriber convenience static factory methods
chegar
parents:
48083
diff
changeset
|
67 |
this.consumer = Objects.requireNonNull(consumer); |
48083 | 68 |
} |
69 |
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70 |
@Override |
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71 |
public CompletionStage<Void> getBody() { |
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72 |
return result; |
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73 |
} |
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74 |
||
75 |
@Override |
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76 |
public void onSubscribe(Flow.Subscription subscription) { |
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if (!subscribed.compareAndSet(false, true)) { |
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subscription.cancel(); |
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79 |
} else { |
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80 |
this.subscription = subscription; |
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subscription.request(1); |
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} |
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} |
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@Override |
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86 |
public void onNext(List<ByteBuffer> items) { |
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for (ByteBuffer item : items) { |
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byte[] buf = new byte[item.remaining()]; |
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item.get(buf); |
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consumer.accept(Optional.of(buf)); |
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} |
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subscription.request(1); |
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} |
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@Override |
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public void onError(Throwable throwable) { |
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result.completeExceptionally(throwable); |
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} |
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@Override |
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public void onComplete() { |
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consumer.accept(Optional.empty()); |
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result.complete(null); |
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} |
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} |
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static class PathSubscriber implements HttpResponse.BodySubscriber<Path> { |
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private final Path file; |
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private final CompletableFuture<Path> result = new MinimalFuture<>(); |
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private volatile Flow.Subscription subscription; |
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private volatile FileChannel out; |
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private volatile AccessControlContext acc; |
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private final OpenOption[] options; |
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PathSubscriber(Path file, OpenOption... options) { |
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this.file = file; |
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this.options = options; |
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} |
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122 |
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void setAccessControlContext(AccessControlContext acc) { |
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this.acc = acc; |
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} |
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126 |
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127 |
@Override |
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public void onSubscribe(Flow.Subscription subscription) { |
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if (System.getSecurityManager() != null && acc == null) |
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throw new InternalError( |
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"Unexpected null acc when security manager has been installed"); |
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this.subscription = subscription; |
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try { |
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PrivilegedExceptionAction<FileChannel> pa = |
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() -> FileChannel.open(file, options); |
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out = AccessController.doPrivileged(pa, acc); |
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} catch (PrivilegedActionException pae) { |
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Throwable t = pae.getCause() != null ? pae.getCause() : pae; |
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result.completeExceptionally(t); |
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subscription.cancel(); |
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return; |
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} |
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subscription.request(1); |
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} |
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@Override |
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public void onNext(List<ByteBuffer> items) { |
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try { |
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out.write(items.toArray(Utils.EMPTY_BB_ARRAY)); |
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} catch (IOException ex) { |
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Utils.close(out); |
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subscription.cancel(); |
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result.completeExceptionally(ex); |
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} |
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subscription.request(1); |
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} |
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159 |
@Override |
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160 |
public void onError(Throwable e) { |
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result.completeExceptionally(e); |
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Utils.close(out); |
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} |
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@Override |
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public void onComplete() { |
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Utils.close(out); |
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result.complete(file); |
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} |
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@Override |
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public CompletionStage<Path> getBody() { |
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return result; |
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} |
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} |
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static class ByteArraySubscriber<T> implements HttpResponse.BodySubscriber<T> { |
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private final Function<byte[], T> finisher; |
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private final CompletableFuture<T> result = new MinimalFuture<>(); |
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private final List<ByteBuffer> received = new ArrayList<>(); |
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private volatile Flow.Subscription subscription; |
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ByteArraySubscriber(Function<byte[],T> finisher) { |
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this.finisher = finisher; |
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} |
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188 |
@Override |
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public void onSubscribe(Flow.Subscription subscription) { |
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190 |
if (this.subscription != null) { |
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subscription.cancel(); |
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return; |
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193 |
} |
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this.subscription = subscription; |
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// We can handle whatever you've got |
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subscription.request(Long.MAX_VALUE); |
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} |
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@Override |
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public void onNext(List<ByteBuffer> items) { |
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// incoming buffers are allocated by http client internally, |
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// and won't be used anywhere except this place. |
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// So it's free simply to store them for further processing. |
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assert Utils.hasRemaining(items); |
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Utils.accumulateBuffers(received, items); |
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} |
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208 |
@Override |
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public void onError(Throwable throwable) { |
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received.clear(); |
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result.completeExceptionally(throwable); |
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} |
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213 |
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214 |
static private byte[] join(List<ByteBuffer> bytes) { |
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int size = Utils.remaining(bytes, Integer.MAX_VALUE); |
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216 |
byte[] res = new byte[size]; |
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int from = 0; |
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218 |
for (ByteBuffer b : bytes) { |
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int l = b.remaining(); |
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b.get(res, from, l); |
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from += l; |
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222 |
} |
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223 |
return res; |
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224 |
} |
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225 |
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226 |
@Override |
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227 |
public void onComplete() { |
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228 |
try { |
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result.complete(finisher.apply(join(received))); |
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received.clear(); |
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231 |
} catch (IllegalArgumentException e) { |
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232 |
result.completeExceptionally(e); |
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233 |
} |
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234 |
} |
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235 |
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236 |
@Override |
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237 |
public CompletionStage<T> getBody() { |
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return result; |
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239 |
} |
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240 |
} |
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241 |
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242 |
/** |
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243 |
* An InputStream built on top of the Flow API. |
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244 |
*/ |
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245 |
static class HttpResponseInputStream extends InputStream |
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246 |
implements HttpResponse.BodySubscriber<InputStream> |
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247 |
{ |
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248 |
final static boolean DEBUG = Utils.DEBUG; |
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249 |
final static int MAX_BUFFERS_IN_QUEUE = 1; // lock-step with the producer |
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250 |
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251 |
// An immutable ByteBuffer sentinel to mark that the last byte was received. |
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252 |
private static final ByteBuffer LAST_BUFFER = ByteBuffer.wrap(new byte[0]); |
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253 |
private static final List<ByteBuffer> LAST_LIST = List.of(LAST_BUFFER); |
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254 |
private static final System.Logger DEBUG_LOGGER = |
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255 |
Utils.getDebugLogger("HttpResponseInputStream"::toString, DEBUG); |
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256 |
||
257 |
// A queue of yet unprocessed ByteBuffers received from the flow API. |
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258 |
private final BlockingQueue<List<ByteBuffer>> buffers; |
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259 |
private volatile Flow.Subscription subscription; |
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260 |
private volatile boolean closed; |
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261 |
private volatile Throwable failed; |
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262 |
private volatile Iterator<ByteBuffer> currentListItr; |
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263 |
private volatile ByteBuffer currentBuffer; |
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264 |
private final AtomicBoolean subscribed = new AtomicBoolean(); |
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265 |
||
266 |
HttpResponseInputStream() { |
|
267 |
this(MAX_BUFFERS_IN_QUEUE); |
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268 |
} |
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269 |
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270 |
HttpResponseInputStream(int maxBuffers) { |
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271 |
int capacity = (maxBuffers <= 0 ? MAX_BUFFERS_IN_QUEUE : maxBuffers); |
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272 |
// 1 additional slot needed for LAST_LIST added by onComplete |
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273 |
this.buffers = new ArrayBlockingQueue<>(capacity + 1); |
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274 |
} |
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275 |
||
276 |
@Override |
|
277 |
public CompletionStage<InputStream> getBody() { |
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278 |
// Returns the stream immediately, before the |
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279 |
// response body is received. |
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280 |
// This makes it possible for senAsync().get().body() |
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281 |
// to complete before the response body is received. |
|
282 |
return CompletableFuture.completedStage(this); |
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283 |
} |
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284 |
||
285 |
// Returns the current byte buffer to read from. |
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286 |
// If the current buffer has no remaining data, this method will take the |
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287 |
// next buffer from the buffers queue, possibly blocking until |
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288 |
// a new buffer is made available through the Flow API, or the |
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289 |
// end of the flow has been reached. |
|
290 |
private ByteBuffer current() throws IOException { |
|
291 |
while (currentBuffer == null || !currentBuffer.hasRemaining()) { |
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292 |
// Check whether the stream is closed or exhausted |
|
293 |
if (closed || failed != null) { |
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294 |
throw new IOException("closed", failed); |
|
295 |
} |
|
296 |
if (currentBuffer == LAST_BUFFER) break; |
|
297 |
||
298 |
try { |
|
299 |
if (currentListItr == null || !currentListItr.hasNext()) { |
|
300 |
// Take a new list of buffers from the queue, blocking |
|
301 |
// if none is available yet... |
|
302 |
||
303 |
DEBUG_LOGGER.log(Level.DEBUG, "Taking list of Buffers"); |
|
304 |
List<ByteBuffer> lb = buffers.take(); |
|
305 |
currentListItr = lb.iterator(); |
|
306 |
DEBUG_LOGGER.log(Level.DEBUG, "List of Buffers Taken"); |
|
307 |
||
308 |
// Check whether an exception was encountered upstream |
|
309 |
if (closed || failed != null) |
|
310 |
throw new IOException("closed", failed); |
|
311 |
||
312 |
// Check whether we're done. |
|
313 |
if (lb == LAST_LIST) { |
|
314 |
currentListItr = null; |
|
315 |
currentBuffer = LAST_BUFFER; |
|
316 |
break; |
|
317 |
} |
|
318 |
||
319 |
// Request another upstream item ( list of buffers ) |
|
320 |
Flow.Subscription s = subscription; |
|
321 |
if (s != null) { |
|
322 |
DEBUG_LOGGER.log(Level.DEBUG, "Increased demand by 1"); |
|
323 |
s.request(1); |
|
324 |
} |
|
325 |
assert currentListItr != null; |
|
326 |
if (lb.isEmpty()) continue; |
|
327 |
} |
|
328 |
assert currentListItr != null; |
|
329 |
assert currentListItr.hasNext(); |
|
330 |
DEBUG_LOGGER.log(Level.DEBUG, "Next Buffer"); |
|
331 |
currentBuffer = currentListItr.next(); |
|
332 |
} catch (InterruptedException ex) { |
|
333 |
// continue |
|
334 |
} |
|
335 |
} |
|
336 |
assert currentBuffer == LAST_BUFFER || currentBuffer.hasRemaining(); |
|
337 |
return currentBuffer; |
|
338 |
} |
|
339 |
||
340 |
@Override |
|
341 |
public int read(byte[] bytes, int off, int len) throws IOException { |
|
342 |
// get the buffer to read from, possibly blocking if |
|
343 |
// none is available |
|
344 |
ByteBuffer buffer; |
|
345 |
if ((buffer = current()) == LAST_BUFFER) return -1; |
|
346 |
||
347 |
// don't attempt to read more than what is available |
|
348 |
// in the current buffer. |
|
349 |
int read = Math.min(buffer.remaining(), len); |
|
350 |
assert read > 0 && read <= buffer.remaining(); |
|
351 |
||
352 |
// buffer.get() will do the boundary check for us. |
|
353 |
buffer.get(bytes, off, read); |
|
354 |
return read; |
|
355 |
} |
|
356 |
||
357 |
@Override |
|
358 |
public int read() throws IOException { |
|
359 |
ByteBuffer buffer; |
|
360 |
if ((buffer = current()) == LAST_BUFFER) return -1; |
|
361 |
return buffer.get() & 0xFF; |
|
362 |
} |
|
363 |
||
364 |
@Override |
|
365 |
public void onSubscribe(Flow.Subscription s) { |
|
366 |
try { |
|
367 |
if (!subscribed.compareAndSet(false, true)) { |
|
368 |
s.cancel(); |
|
369 |
} else { |
|
370 |
// check whether the stream is already closed. |
|
371 |
// if so, we should cancel the subscription |
|
372 |
// immediately. |
|
373 |
boolean closed; |
|
374 |
synchronized (this) { |
|
375 |
closed = this.closed; |
|
376 |
if (!closed) { |
|
377 |
this.subscription = s; |
|
378 |
} |
|
379 |
} |
|
380 |
if (closed) { |
|
381 |
s.cancel(); |
|
382 |
return; |
|
383 |
} |
|
384 |
assert buffers.remainingCapacity() > 1; // should contain at least 2 |
|
385 |
DEBUG_LOGGER.log(Level.DEBUG, () -> "onSubscribe: requesting " |
|
386 |
+ Math.max(1, buffers.remainingCapacity() - 1)); |
|
387 |
s.request(Math.max(1, buffers.remainingCapacity() - 1)); |
|
388 |
} |
|
389 |
} catch (Throwable t) { |
|
390 |
failed = t; |
|
391 |
try { |
|
392 |
close(); |
|
393 |
} catch (IOException x) { |
|
394 |
// OK |
|
395 |
} finally { |
|
396 |
onError(t); |
|
397 |
} |
|
398 |
} |
|
399 |
} |
|
400 |
||
401 |
@Override |
|
402 |
public void onNext(List<ByteBuffer> t) { |
|
403 |
Objects.requireNonNull(t); |
|
404 |
try { |
|
405 |
DEBUG_LOGGER.log(Level.DEBUG, "next item received"); |
|
406 |
if (!buffers.offer(t)) { |
|
407 |
throw new IllegalStateException("queue is full"); |
|
408 |
} |
|
409 |
DEBUG_LOGGER.log(Level.DEBUG, "item offered"); |
|
410 |
} catch (Throwable ex) { |
|
411 |
failed = ex; |
|
412 |
try { |
|
413 |
close(); |
|
414 |
} catch (IOException ex1) { |
|
415 |
// OK |
|
416 |
} finally { |
|
417 |
onError(ex); |
|
418 |
} |
|
419 |
} |
|
420 |
} |
|
421 |
||
422 |
@Override |
|
423 |
public void onError(Throwable thrwbl) { |
|
424 |
subscription = null; |
|
425 |
failed = Objects.requireNonNull(thrwbl); |
|
426 |
// The client process that reads the input stream might |
|
427 |
// be blocked in queue.take(). |
|
428 |
// Tries to offer LAST_LIST to the queue. If the queue is |
|
429 |
// full we don't care if we can't insert this buffer, as |
|
430 |
// the client can't be blocked in queue.take() in that case. |
|
431 |
// Adding LAST_LIST to the queue is harmless, as the client |
|
432 |
// should find failed != null before handling LAST_LIST. |
|
433 |
buffers.offer(LAST_LIST); |
|
434 |
} |
|
435 |
||
436 |
@Override |
|
437 |
public void onComplete() { |
|
438 |
subscription = null; |
|
439 |
onNext(LAST_LIST); |
|
440 |
} |
|
441 |
||
442 |
@Override |
|
443 |
public void close() throws IOException { |
|
444 |
Flow.Subscription s; |
|
445 |
synchronized (this) { |
|
446 |
if (closed) return; |
|
447 |
closed = true; |
|
448 |
s = subscription; |
|
449 |
subscription = null; |
|
450 |
} |
|
451 |
// s will be null if already completed |
|
452 |
try { |
|
453 |
if (s != null) { |
|
454 |
s.cancel(); |
|
455 |
} |
|
456 |
} finally { |
|
457 |
buffers.offer(LAST_LIST); |
|
458 |
super.close(); |
|
459 |
} |
|
460 |
} |
|
461 |
||
462 |
} |
|
463 |
||
464 |
static class MultiSubscriberImpl<V> |
|
465 |
implements HttpResponse.MultiSubscriber<MultiMapResult<V>,V> |
|
466 |
{ |
|
467 |
private final MultiMapResult<V> results; |
|
468 |
private final Function<HttpRequest,Optional<HttpResponse.BodyHandler<V>>> pushHandler; |
|
469 |
private final Function<HttpRequest,HttpResponse.BodyHandler<V>> requestHandler; |
|
470 |
private final boolean completion; // aggregate completes on last PP received or overall completion |
|
471 |
||
472 |
MultiSubscriberImpl( |
|
473 |
Function<HttpRequest,HttpResponse.BodyHandler<V>> requestHandler, |
|
474 |
Function<HttpRequest,Optional<HttpResponse.BodyHandler<V>>> pushHandler, boolean completion) { |
|
475 |
this.results = new MultiMapResult<>(new ConcurrentHashMap<>()); |
|
476 |
this.requestHandler = requestHandler; |
|
477 |
this.pushHandler = pushHandler; |
|
478 |
this.completion = completion; |
|
479 |
} |
|
480 |
||
481 |
@Override |
|
482 |
public HttpResponse.BodyHandler<V> onRequest(HttpRequest request) { |
|
483 |
CompletableFuture<HttpResponse<V>> cf = MinimalFuture.newMinimalFuture(); |
|
484 |
results.put(request, cf); |
|
485 |
return requestHandler.apply(request); |
|
486 |
} |
|
487 |
||
488 |
@Override |
|
489 |
public Optional<HttpResponse.BodyHandler<V>> onPushPromise(HttpRequest push) { |
|
490 |
CompletableFuture<HttpResponse<V>> cf = MinimalFuture.newMinimalFuture(); |
|
491 |
results.put(push, cf); |
|
492 |
return pushHandler.apply(push); |
|
493 |
} |
|
494 |
||
495 |
@Override |
|
496 |
public void onResponse(HttpResponse<V> response) { |
|
497 |
CompletableFuture<HttpResponse<V>> cf = results.get(response.request()); |
|
498 |
cf.complete(response); |
|
499 |
} |
|
500 |
||
501 |
@Override |
|
502 |
public void onError(HttpRequest request, Throwable t) { |
|
503 |
CompletableFuture<HttpResponse<V>> cf = results.get(request); |
|
504 |
cf.completeExceptionally(t); |
|
505 |
} |
|
506 |
||
507 |
@Override |
|
508 |
public CompletableFuture<MultiMapResult<V>> completion( |
|
509 |
CompletableFuture<Void> onComplete, CompletableFuture<Void> onFinalPushPromise) { |
|
510 |
if (completion) |
|
511 |
return onComplete.thenApply((ignored)-> results); |
|
512 |
else |
|
513 |
return onFinalPushPromise.thenApply((ignored) -> results); |
|
514 |
} |
|
515 |
} |
|
516 |
||
517 |
/** |
|
518 |
* Currently this consumes all of the data and ignores it |
|
519 |
*/ |
|
520 |
static class NullSubscriber<T> implements HttpResponse.BodySubscriber<T> { |
|
521 |
||
522 |
private final CompletableFuture<T> cf = new MinimalFuture<>(); |
|
523 |
private final Optional<T> result; |
|
524 |
private final AtomicBoolean subscribed = new AtomicBoolean(); |
|
525 |
||
526 |
NullSubscriber(Optional<T> result) { |
|
527 |
this.result = result; |
|
528 |
} |
|
529 |
||
530 |
@Override |
|
531 |
public void onSubscribe(Flow.Subscription subscription) { |
|
532 |
if (!subscribed.compareAndSet(false, true)) { |
|
533 |
subscription.cancel(); |
|
534 |
} else { |
|
535 |
subscription.request(Long.MAX_VALUE); |
|
536 |
} |
|
537 |
} |
|
538 |
||
539 |
@Override |
|
540 |
public void onNext(List<ByteBuffer> items) { |
|
541 |
Objects.requireNonNull(items); |
|
542 |
} |
|
543 |
||
544 |
@Override |
|
545 |
public void onError(Throwable throwable) { |
|
546 |
cf.completeExceptionally(throwable); |
|
547 |
} |
|
548 |
||
549 |
@Override |
|
550 |
public void onComplete() { |
|
551 |
if (result.isPresent()) { |
|
552 |
cf.complete(result.get()); |
|
553 |
} else { |
|
554 |
cf.complete(null); |
|
555 |
} |
|
556 |
} |
|
557 |
||
558 |
@Override |
|
559 |
public CompletionStage<T> getBody() { |
|
560 |
return cf; |
|
561 |
} |
|
562 |
} |
|
48408
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
563 |
|
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
564 |
/** An adapter between {@code BodySubscriber} and {@code Flow.Subscriber}. */ |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
565 |
static final class SubscriberAdapter<S extends Subscriber<? super List<ByteBuffer>>,R> |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
566 |
implements HttpResponse.BodySubscriber<R> |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
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diff
changeset
|
567 |
{ |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
568 |
private final CompletableFuture<R> cf = new MinimalFuture<>(); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
569 |
private final S subscriber; |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
570 |
private final Function<S,R> finisher; |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
571 |
private volatile Subscription subscription; |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
572 |
|
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
573 |
SubscriberAdapter(S subscriber, Function<S,R> finisher) { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
574 |
this.subscriber = Objects.requireNonNull(subscriber); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
575 |
this.finisher = Objects.requireNonNull(finisher); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
576 |
} |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
577 |
|
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
578 |
@Override |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
579 |
public void onSubscribe(Subscription subscription) { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
580 |
Objects.requireNonNull(subscription); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
581 |
if (this.subscription != null) { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
582 |
subscription.cancel(); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
583 |
} else { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
584 |
this.subscription = subscription; |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
585 |
subscriber.onSubscribe(subscription); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
586 |
} |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
587 |
} |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
588 |
|
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
589 |
@Override |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
590 |
public void onNext(List<ByteBuffer> item) { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
591 |
Objects.requireNonNull(item); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
592 |
try { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
593 |
subscriber.onNext(item); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
594 |
} catch (Throwable throwable) { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
595 |
subscription.cancel(); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
596 |
onError(throwable); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
597 |
} |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
598 |
} |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
599 |
|
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
600 |
@Override |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
601 |
public void onError(Throwable throwable) { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
602 |
Objects.requireNonNull(throwable); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
603 |
try { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
604 |
subscriber.onError(throwable); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
605 |
} finally { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
606 |
cf.completeExceptionally(throwable); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
607 |
} |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
608 |
} |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
609 |
|
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
610 |
@Override |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
611 |
public void onComplete() { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
612 |
try { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
613 |
subscriber.onComplete(); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
614 |
} finally { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
615 |
try { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
616 |
cf.complete(finisher.apply(subscriber)); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
617 |
} catch (Throwable throwable) { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
618 |
cf.completeExceptionally(throwable); |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
619 |
} |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
620 |
} |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
621 |
} |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
622 |
|
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
623 |
@Override |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
624 |
public CompletionStage<R> getBody() { |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
625 |
return cf; |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
626 |
} |
4f830b447edf
8193365: Improve interoperability between HTTP Client's BodyPublisher/BodySubscriber and Flow.Subscriber/Publisher
chegar
parents:
48379
diff
changeset
|
627 |
} |
48083 | 628 |
} |