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/*
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* Copyright (c) 2018, 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 java.io.BufferedReader;
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import java.io.ByteArrayInputStream;
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import java.io.InputStreamReader;
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import java.io.StringReader;
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import java.net.http.HttpResponse.BodySubscriber;
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import java.net.http.HttpResponse.BodySubscribers;
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import java.nio.ByteBuffer;
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import java.nio.charset.Charset;
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import java.nio.charset.MalformedInputException;
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import java.util.Arrays;
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import java.util.List;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.SubmissionPublisher;
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import java.util.concurrent.atomic.AtomicReference;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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import org.testng.annotations.Test;
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import static java.nio.charset.StandardCharsets.UTF_8;
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import static java.nio.charset.StandardCharsets.UTF_16;
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import static org.testng.Assert.assertEquals;
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/*
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* @test
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* @summary tests for BodySubscribers returned by asLines.
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* In particular tests that surrogate characters are handled
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* correctly.
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* @modules java.net.http java.logging
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* @run testng/othervm LineStreamsAndSurrogatesTest
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*/
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public class LineStreamsAndSurrogatesTest {
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static final Class<NullPointerException> NPE = NullPointerException.class;
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private static final List<String> lines(String text) {
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return new BufferedReader(new StringReader(text)).lines().collect(Collectors.toList());
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}
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@Test
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void testUncomplete() throws Exception {
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// Uses U+10400 which is encoded as the surrogate pair U+D801 U+DC00
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String text = "Bient\u00f4t\r\n nous plongerons\r\n dans\r les\n\n" +
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" fr\u00f4\ud801\udc00des\r\n t\u00e9n\u00e8bres\ud801\udc00";
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Charset charset = UTF_8;
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BodySubscriber<Stream<String>> bodySubscriber = BodySubscribers.ofLines(charset);
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AtomicReference<Throwable> errorRef = new AtomicReference<>();
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Runnable run = () -> {
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try {
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SubmissionPublisher<List<ByteBuffer>> publisher = new SubmissionPublisher<>();
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byte[] sbytes = text.getBytes(charset);
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byte[] bytes = Arrays.copyOfRange(sbytes, 0, sbytes.length - 1);
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publisher.subscribe(bodySubscriber);
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System.out.println("Publishing " + bytes.length + " bytes");
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for (int i = 0; i < bytes.length; i++) {
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// ensure that surrogates are split over several buffers.
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publisher.submit(List.of(ByteBuffer.wrap(bytes, i, 1)));
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}
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publisher.close();
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} catch(Throwable t) {
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errorRef.set(t);
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}
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};
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Thread thread = new Thread(run,"Publishing");
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thread.start();
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try {
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Stream<String> stream = bodySubscriber.getBody().toCompletableFuture().get();
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List<String> list = stream.collect(Collectors.toList());
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String resp = list.stream().collect(Collectors.joining(""));
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System.out.println("***** Got: " + resp);
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byte[] sbytes = text.getBytes(UTF_8);
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byte[] bytes = Arrays.copyOfRange(sbytes, 0, sbytes.length - 1);
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ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
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BufferedReader reader = new BufferedReader(new InputStreamReader(bais, charset));
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String resp2 = reader.lines().collect(Collectors.joining(""));
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System.out.println("***** Got2: " + resp2);
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assertEquals(resp, resp2);
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assertEquals(list, List.of("Bient\u00f4t",
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" nous plongerons",
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" dans",
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" les",
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"",
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" fr\u00f4\ud801\udc00des",
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" t\u00e9n\u00e8bres\ufffd"));
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} catch (ExecutionException x) {
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Throwable cause = x.getCause();
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if (cause instanceof MalformedInputException) {
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throw new RuntimeException("Unexpected MalformedInputException", cause);
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}
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throw x;
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}
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if (errorRef.get() != null) {
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throw new RuntimeException("Unexpected exception", errorRef.get());
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}
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}
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@Test
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void testStream1() throws Exception {
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// Uses U+10400 which is encoded as the surrogate pair U+D801 U+DC00
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String text = "Bient\u00f4t\r\n nous plongerons\r\n dans\r\r les\n\n" +
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" fr\u00f4\ud801\udc00des\r\n t\u00e9n\u00e8bres";
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Charset charset = UTF_8;
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BodySubscriber<Stream<String>> bodySubscriber = BodySubscribers.ofLines(charset);
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SubmissionPublisher<List<ByteBuffer>> publisher = new SubmissionPublisher<>();
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byte[] bytes = text.getBytes(charset);
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AtomicReference<Throwable> errorRef = new AtomicReference<>();
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Runnable run = () -> {
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try {
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publisher.subscribe(bodySubscriber);
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System.out.println("Publishing " + bytes.length + " bytes");
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for (int i = 0; i < bytes.length; i++) {
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// ensure that surrogates are split over several buffers.
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publisher.submit(List.of(ByteBuffer.wrap(bytes, i, 1)));
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}
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publisher.close();
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} catch(Throwable t) {
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errorRef.set(t);
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}
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};
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Stream<String> stream = bodySubscriber.getBody().toCompletableFuture().get();
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Thread thread = new Thread(run,"Publishing");
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thread.start();
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List<String> list = stream.collect(Collectors.toList());
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String resp = list.stream().collect(Collectors.joining("|"));
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System.out.println("***** Got: " + resp);
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assertEquals(resp, text.replace("\r\n", "|")
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.replace("\n","|")
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.replace("\r","|"));
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assertEquals(list, List.of("Bient\u00f4t",
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" nous plongerons",
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" dans",
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"",
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" les",
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"",
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" fr\u00f4\ud801\udc00des",
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" t\u00e9n\u00e8bres"));
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assertEquals(list, lines(text));
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if (errorRef.get() != null) {
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throw new RuntimeException("Unexpected exception", errorRef.get());
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}
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}
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@Test
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void testStream2() throws Exception {
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String text = "Bient\u00f4t\r\n nous plongerons\r\n dans\r\r" +
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" les fr\u00f4\ud801\udc00des\r\n t\u00e9n\u00e8bres\r\r";
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Charset charset = UTF_8;
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BodySubscriber<Stream<String>> bodySubscriber = BodySubscribers.ofLines(charset);
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SubmissionPublisher<List<ByteBuffer>> publisher = new SubmissionPublisher<>();
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byte[] bytes = text.getBytes(charset);
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AtomicReference<Throwable> errorRef = new AtomicReference<>();
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Runnable run = () -> {
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try {
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publisher.subscribe(bodySubscriber);
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System.out.println("Publishing " + bytes.length + " bytes");
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for (int i = 0; i < bytes.length; i++) {
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// ensure that surrogates are split over several buffers.
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publisher.submit(List.of(ByteBuffer.wrap(bytes, i, 1)));
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}
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publisher.close();
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} catch(Throwable t) {
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errorRef.set(t);
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}
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};
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Stream<String> stream = bodySubscriber.getBody().toCompletableFuture().get();
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Thread thread = new Thread(run,"Publishing");
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thread.start();
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List<String> list = stream.collect(Collectors.toList());
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String resp = list.stream().collect(Collectors.joining(""));
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System.out.println("***** Got: " + resp);
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String expected = Stream.of(text.split("\r\n|\r|\n"))
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.collect(Collectors.joining(""));
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assertEquals(resp, expected);
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assertEquals(list, List.of("Bient\u00f4t",
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" nous plongerons",
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" dans",
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"",
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" les fr\u00f4\ud801\udc00des",
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" t\u00e9n\u00e8bres",
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""));
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assertEquals(list, lines(text));
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if (errorRef.get() != null) {
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throw new RuntimeException("Unexpected exception", errorRef.get());
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}
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}
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@Test
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void testStream3_UTF16() throws Exception {
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// Uses U+10400 which is encoded as the surrogate pair U+D801 U+DC00
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String text = "Bient\u00f4t\r\n nous plongerons\r\n dans\r\r" +
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" les\n\n fr\u00f4\ud801\udc00des\r\n t\u00e9n\u00e8bres";
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Charset charset = UTF_16;
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BodySubscriber<Stream<String>> bodySubscriber = BodySubscribers.ofLines(charset);
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SubmissionPublisher<List<ByteBuffer>> publisher = new SubmissionPublisher<>();
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byte[] bytes = text.getBytes(charset);
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AtomicReference<Throwable> errorRef = new AtomicReference<>();
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Runnable run = () -> {
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try {
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publisher.subscribe(bodySubscriber);
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System.out.println("Publishing " + bytes.length + " bytes");
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for (int i = 0; i < bytes.length; i++) {
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// ensure that surrogates are split over several buffers.
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publisher.submit(List.of(ByteBuffer.wrap(bytes, i, 1)));
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}
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publisher.close();
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} catch(Throwable t) {
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errorRef.set(t);
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}
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};
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Stream<String> stream = bodySubscriber.getBody().toCompletableFuture().get();
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Thread thread = new Thread(run,"Publishing");
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thread.start();
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List<String> list = stream.collect(Collectors.toList());
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String resp = list.stream().collect(Collectors.joining(""));
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System.out.println("***** Got: " + resp);
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assertEquals(resp, text.replace("\n","").replace("\r",""));
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assertEquals(list, List.of("Bient\u00f4t",
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" nous plongerons",
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" dans",
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"",
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" les",
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"",
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" fr\u00f4\ud801\udc00des",
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" t\u00e9n\u00e8bres"));
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assertEquals(list, lines(text));
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if (errorRef.get() != null) {
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throw new RuntimeException("Unexpected exception", errorRef.get());
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}
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}
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@Test
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void testStream4_UTF16() throws Exception {
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String text = "Bient\u00f4t\r\n nous plongerons\r\n dans\r\r" +
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" les fr\u00f4\ud801\udc00des\r\n t\u00e9n\u00e8bres\r\r";
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Charset charset = UTF_16;
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BodySubscriber<Stream<String>> bodySubscriber = BodySubscribers.ofLines(charset);
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SubmissionPublisher<List<ByteBuffer>> publisher = new SubmissionPublisher<>();
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byte[] bytes = text.getBytes(charset);
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AtomicReference<Throwable> errorRef = new AtomicReference<>();
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Runnable run = () -> {
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try {
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publisher.subscribe(bodySubscriber);
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System.out.println("Publishing " + bytes.length + " bytes");
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for (int i = 0; i < bytes.length; i++) {
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// ensure that surrogates are split over several buffers.
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publisher.submit(List.of(ByteBuffer.wrap(bytes, i, 1)));
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}
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publisher.close();
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} catch(Throwable t) {
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errorRef.set(t);
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}
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};
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Stream<String> stream = bodySubscriber.getBody().toCompletableFuture().get();
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Thread thread = new Thread(run,"Publishing");
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thread.start();
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List<String> list = stream.collect(Collectors.toList());
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String resp = list.stream().collect(Collectors.joining(""));
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System.out.println("***** Got: " + resp);
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String expected = Stream.of(text.split("\r\n|\r|\n"))
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.collect(Collectors.joining(""));
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assertEquals(resp, expected);
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assertEquals(list, List.of("Bient\u00f4t",
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" nous plongerons",
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" dans",
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"",
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" les fr\u00f4\ud801\udc00des",
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" t\u00e9n\u00e8bres",
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""));
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assertEquals(list, lines(text));
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if (errorRef.get() != null) {
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throw new RuntimeException("Unexpected exception", errorRef.get());
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}
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}
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}
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