| /* |
| * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.net.http.HttpClient; |
| import java.net.http.HttpRequest; |
| import java.net.http.HttpResponse; |
| import java.nio.ByteBuffer; |
| import java.nio.MappedByteBuffer; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.concurrent.Flow; |
| import java.util.function.Function; |
| import java.net.http.HttpRequest.BodyPublishers; |
| import java.net.http.HttpResponse.BodyHandler; |
| import java.net.http.HttpResponse.BodyHandlers; |
| import java.net.http.HttpResponse.BodySubscriber; |
| import java.net.http.HttpResponse.BodySubscribers; |
| |
| /* |
| * @test |
| * @summary Basic test for Flow adapters with generic type parameters |
| * @compile FlowAdaptersCompileOnly.java |
| */ |
| |
| public class FlowAdaptersCompileOnly { |
| |
| static void makesSureDifferentGenericSignaturesCompile() { |
| BodyPublishers.fromPublisher(new BBPublisher()); |
| BodyPublishers.fromPublisher(new MBBPublisher()); |
| |
| BodyHandlers.fromSubscriber(new ListSubscriber()); |
| BodyHandlers.fromSubscriber(new CollectionSubscriber()); |
| BodyHandlers.fromSubscriber(new IterableSubscriber()); |
| BodyHandlers.fromSubscriber(new ObjectSubscriber()); |
| |
| BodySubscribers.fromSubscriber(new ListSubscriber()); |
| BodySubscribers.fromSubscriber(new CollectionSubscriber()); |
| BodySubscribers.fromSubscriber(new IterableSubscriber()); |
| BodySubscribers.fromSubscriber(new ObjectSubscriber()); |
| |
| BodyPublishers.fromPublisher(new BBPublisher(), 1); |
| BodyPublishers.fromPublisher(new MBBPublisher(), 1); |
| |
| BodyHandlers.fromSubscriber(new ListSubscriber(), Function.identity()); |
| BodyHandlers.fromSubscriber(new CollectionSubscriber(), Function.identity()); |
| BodyHandlers.fromSubscriber(new IterableSubscriber(), Function.identity()); |
| BodyHandlers.fromSubscriber(new ObjectSubscriber(), Function.identity()); |
| |
| BodySubscribers.fromSubscriber(new ListSubscriber(), Function.identity()); |
| BodySubscribers.fromSubscriber(new CollectionSubscriber(), Function.identity()); |
| BodySubscribers.fromSubscriber(new IterableSubscriber(), Function.identity()); |
| BodySubscribers.fromSubscriber(new ObjectSubscriber(), Function.identity()); |
| } |
| |
| static class BBPublisher implements Flow.Publisher<ByteBuffer> { |
| @Override |
| public void subscribe(Flow.Subscriber<? super ByteBuffer> subscriber) { } |
| } |
| |
| static class MBBPublisher implements Flow.Publisher<MappedByteBuffer> { |
| @Override |
| public void subscribe(Flow.Subscriber<? super MappedByteBuffer> subscriber) { } |
| } |
| |
| static class ListSubscriber implements Flow.Subscriber<List<ByteBuffer>> { |
| @Override public void onSubscribe(Flow.Subscription subscription) { } |
| @Override public void onNext(List<ByteBuffer> item) { } |
| @Override public void onError(Throwable throwable) { } |
| @Override public void onComplete() { } |
| } |
| |
| static class CollectionSubscriber implements Flow.Subscriber<Collection<ByteBuffer>> { |
| @Override public void onSubscribe(Flow.Subscription subscription) { } |
| @Override public void onNext(Collection<ByteBuffer> item) { } |
| @Override public void onError(Throwable throwable) { } |
| @Override public void onComplete() { } |
| } |
| |
| static class IterableSubscriber implements Flow.Subscriber<Iterable<ByteBuffer>> { |
| @Override public void onSubscribe(Flow.Subscription subscription) { } |
| @Override public void onNext(Iterable<ByteBuffer> item) { } |
| @Override public void onError(Throwable throwable) { } |
| @Override public void onComplete() { } |
| } |
| |
| static class ObjectSubscriber implements Flow.Subscriber<Object> { |
| @Override public void onSubscribe(Flow.Subscription subscription) { } |
| @Override public void onNext(Object item) { } |
| @Override public void onError(Throwable throwable) { } |
| @Override public void onComplete() { } |
| } |
| |
| // --- |
| |
| static final Function<ListSubscriber,Integer> f1 = subscriber -> 1; |
| static final Function<ListSubscriber,Number> f2 = subscriber -> 2; |
| static final Function<ListSubscriberX,Integer> f3 = subscriber -> 3; |
| static final Function<ListSubscriberX,Number> f4 = subscriber -> 4; |
| |
| static class ListSubscriberX extends ListSubscriber { |
| int getIntegerX() { return 5; } |
| } |
| |
| static void makesSureDifferentGenericFunctionSignaturesCompile() { |
| BodyHandler<Integer> bh01 = BodyHandlers.fromSubscriber(new ListSubscriber(), s -> 6); |
| BodyHandler<Number> bh02 = BodyHandlers.fromSubscriber(new ListSubscriber(), s -> 7); |
| BodyHandler<Integer> bh03 = BodyHandlers.fromSubscriber(new ListSubscriber(), f1); |
| BodyHandler<Number> bh04 = BodyHandlers.fromSubscriber(new ListSubscriber(), f1); |
| BodyHandler<Number> bh05 = BodyHandlers.fromSubscriber(new ListSubscriber(), f2); |
| BodyHandler<Integer> bh06 = BodyHandlers.fromSubscriber(new ListSubscriberX(), f1); |
| BodyHandler<Number> bh07 = BodyHandlers.fromSubscriber(new ListSubscriberX(), f1); |
| BodyHandler<Number> bh08 = BodyHandlers.fromSubscriber(new ListSubscriberX(), f2); |
| BodyHandler<Integer> bh09 = BodyHandlers.fromSubscriber(new ListSubscriberX(), ListSubscriberX::getIntegerX); |
| BodyHandler<Number> bh10 = BodyHandlers.fromSubscriber(new ListSubscriberX(), ListSubscriberX::getIntegerX); |
| BodyHandler<Integer> bh11 = BodyHandlers.fromSubscriber(new ListSubscriberX(), f3); |
| BodyHandler<Number> bh12 = BodyHandlers.fromSubscriber(new ListSubscriberX(), f3); |
| BodyHandler<Number> bh13 = BodyHandlers.fromSubscriber(new ListSubscriberX(), f4); |
| |
| BodySubscriber<Integer> bs01 = BodySubscribers.fromSubscriber(new ListSubscriber(), s -> 6); |
| BodySubscriber<Number> bs02 = BodySubscribers.fromSubscriber(new ListSubscriber(), s -> 7); |
| BodySubscriber<Integer> bs03 = BodySubscribers.fromSubscriber(new ListSubscriber(), f1); |
| BodySubscriber<Number> bs04 = BodySubscribers.fromSubscriber(new ListSubscriber(), f1); |
| BodySubscriber<Number> bs05 = BodySubscribers.fromSubscriber(new ListSubscriber(), f2); |
| BodySubscriber<Integer> bs06 = BodySubscribers.fromSubscriber(new ListSubscriberX(), f1); |
| BodySubscriber<Number> bs07 = BodySubscribers.fromSubscriber(new ListSubscriberX(), f1); |
| BodySubscriber<Number> bs08 = BodySubscribers.fromSubscriber(new ListSubscriberX(), f2); |
| BodySubscriber<Integer> bs09 = BodySubscribers.fromSubscriber(new ListSubscriberX(), ListSubscriberX::getIntegerX); |
| BodySubscriber<Number> bs10 = BodySubscribers.fromSubscriber(new ListSubscriberX(), ListSubscriberX::getIntegerX); |
| BodySubscriber<Integer> bs11 = BodySubscribers.fromSubscriber(new ListSubscriberX(), f3); |
| BodySubscriber<Number> bs12 = BodySubscribers.fromSubscriber(new ListSubscriberX(), f3); |
| BodySubscriber<Number> bs13 = BodySubscribers.fromSubscriber(new ListSubscriberX(), f4); |
| } |
| |
| // --- |
| |
| static class NumberSubscriber implements Flow.Subscriber<List<ByteBuffer>> { |
| @Override public void onSubscribe(Flow.Subscription subscription) { } |
| @Override public void onNext(List<ByteBuffer> item) { } |
| @Override public void onError(Throwable throwable) { } |
| @Override public void onComplete() { } |
| public Number getNumber() { return null; } |
| } |
| |
| static class IntegerSubscriber extends NumberSubscriber { |
| @Override public void onSubscribe(Flow.Subscription subscription) { } |
| @Override public void onNext(List<ByteBuffer> item) { } |
| @Override public void onError(Throwable throwable) { } |
| @Override public void onComplete() { } |
| public Integer getInteger() { return null; } |
| } |
| |
| static class LongSubscriber extends NumberSubscriber { |
| @Override public void onSubscribe(Flow.Subscription subscription) { } |
| @Override public void onNext(List<ByteBuffer> item) { } |
| @Override public void onError(Throwable throwable) { } |
| @Override public void onComplete() { } |
| public Long getLong() { return null; } |
| } |
| |
| static final Function<NumberSubscriber,Number> numMapper = sub -> sub.getNumber(); |
| static final Function<IntegerSubscriber,Integer> intMapper = sub -> sub.getInteger(); |
| static final Function<LongSubscriber,Long> longMapper = sub -> sub.getLong(); |
| |
| public void makesSureDifferentGenericSubscriberSignaturesCompile() |
| throws Exception |
| { |
| HttpClient client = null; |
| HttpRequest request = null; |
| IntegerSubscriber sub1 = new IntegerSubscriber(); |
| |
| HttpResponse<Integer> r1 = client.send(request, BodyHandlers.fromSubscriber(sub1, IntegerSubscriber::getInteger)); |
| HttpResponse<Number> r2 = client.send(request, BodyHandlers.fromSubscriber(sub1, IntegerSubscriber::getInteger)); |
| HttpResponse<Number> r3 = client.send(request, BodyHandlers.fromSubscriber(sub1, NumberSubscriber::getNumber)); |
| HttpResponse<Integer> r4 = client.send(request, BodyHandlers.fromSubscriber(sub1, intMapper)); |
| HttpResponse<Number> r5 = client.send(request, BodyHandlers.fromSubscriber(sub1, intMapper)); |
| HttpResponse<Number> r6 = client.send(request, BodyHandlers.fromSubscriber(sub1, numMapper)); |
| |
| // compiles but makes little sense. Just what you get with any usage of `? super` |
| final Function<Object,Number> objectMapper = sub -> 1; |
| client.sendAsync(request, BodyHandlers.fromSubscriber(sub1, objectMapper)); |
| |
| // does not compile, as expected ( uncomment to see ) |
| //HttpResponse<Number> r7 = client.send(request, BodyHandler.fromSubscriber(sub1, longMapper)); |
| } |
| } |