93 lines
3.7 KiB
Java
93 lines
3.7 KiB
Java
/*
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* Copyright (c) 2020, 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.
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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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import org.reactivestreams.tck.TestEnvironment;
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import org.reactivestreams.tck.flow.FlowPublisherVerification;
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import java.net.http.HttpRequest.BodyPublisher;
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import java.net.http.HttpRequest.BodyPublishers;
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import java.nio.ByteBuffer;
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import java.util.Collections;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.Flow.Publisher;
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/* See TckDriver.java for more information */
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public class BodyPublishersConcat
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extends FlowPublisherVerification<ByteBuffer> {
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private static final int ELEMENT_SIZE = 16 * 1024;
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public BodyPublishersConcat() {
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super(new TestEnvironment(450L));
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}
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private static BodyPublisher ofByteArrays(int n, byte[] bytes) {
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return BodyPublishers.ofByteArrays(Collections.nCopies((int) n, bytes));
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}
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@Override
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public Publisher<ByteBuffer> createFlowPublisher(long nElements) {
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System.out.println("BodyPublishersConcat: %d elements requested"
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.formatted(nElements));
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byte[] bytes = S.arrayOfNRandomBytes(ELEMENT_SIZE);
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if (nElements == 0) {
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System.out.println("BodyPublishersConcat: empty publisher");
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return BodyPublishers.concat();
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} else if (nElements == 1) {
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System.out.println("BodyPublishersConcat: singleton publisher");
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return BodyPublishers.concat(ofByteArrays(1, bytes));
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} else if (nElements < 4) {
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int left = (int)nElements/2;
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int right = (int)nElements - left;
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System.out.println("BodyPublishersConcat: dual publisher (%d, %d)".formatted(left, right));
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return BodyPublishers.concat(ofByteArrays(left, bytes),
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ofByteArrays(right, bytes));
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} else {
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List<BodyPublisher> publishers = new ArrayList<>();
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List<Integer> sizes = new ArrayList<>();
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long remaining = nElements;
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int max = (int) Math.min((long)Integer.MAX_VALUE, nElements/2L);
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while (remaining > 0) {
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int length = S.randomIntUpTo(max);
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if (length == 0) length = 1;
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sizes.add(length);
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if (remaining > length) {
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publishers.add(ofByteArrays(length, bytes));
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remaining = remaining - length;
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} else {
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publishers.add(ofByteArrays((int)remaining, bytes));
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remaining = 0;
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}
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}
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System.out.println("BodyPublishersConcat: multi publisher " + sizes);
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return BodyPublishers.concat(publishers.toArray(BodyPublisher[]::new));
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}
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}
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@Override
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public Publisher<ByteBuffer> createFailedFlowPublisher() {
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return null;
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}
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}
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