--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/net/httpclient/ThrowingSubscribers.java Thu Feb 15 15:28:17 2018 +0000
@@ -0,0 +1,531 @@
+/*
+ * Copyright (c) 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.
+ */
+
+/*
+ * @test
+ * @summary Tests what happens when response body handlers and subscribers
+ * throw unexpected exceptions.
+ * @library /lib/testlibrary http2/server
+ * @build jdk.testlibrary.SimpleSSLContext HttpServerAdapters ThrowingSubscribers
+ * @modules java.base/sun.net.www.http
+ * java.net.http/jdk.internal.net.http.common
+ * java.net.http/jdk.internal.net.http.frame
+ * java.net.http/jdk.internal.net.http.hpack
+ * @run testng/othervm ThrowingSubscribers
+ */
+
+import com.sun.net.httpserver.HttpExchange;
+import com.sun.net.httpserver.HttpHandler;
+import com.sun.net.httpserver.HttpServer;
+import com.sun.net.httpserver.HttpsConfigurator;
+import com.sun.net.httpserver.HttpsServer;
+import jdk.testlibrary.SimpleSSLContext;
+import org.testng.annotations.AfterTest;
+import org.testng.annotations.AfterClass;
+import org.testng.annotations.BeforeTest;
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+
+import javax.net.ssl.SSLContext;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.InetSocketAddress;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpHeaders;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.net.http.HttpResponse.BodyHandler;
+import java.net.http.HttpResponse.BodySubscriber;
+import java.nio.ByteBuffer;
+import java.nio.charset.StandardCharsets;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.CompletionStage;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Flow;
+import java.util.concurrent.atomic.AtomicLong;
+import java.util.function.BiFunction;
+import java.util.function.Consumer;
+import java.util.function.Predicate;
+import java.util.function.Supplier;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import static java.lang.System.out;
+import static java.lang.String.format;
+import static java.net.http.HttpResponse.BodySubscriber.asString;
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.testng.Assert.assertEquals;
+import static org.testng.Assert.assertTrue;
+
+public class ThrowingSubscribers implements HttpServerAdapters {
+
+ SSLContext sslContext;
+ HttpTestServer httpTestServer; // HTTP/1.1 [ 4 servers ]
+ HttpTestServer httpsTestServer; // HTTPS/1.1
+ HttpTestServer http2TestServer; // HTTP/2 ( h2c )
+ HttpTestServer https2TestServer; // HTTP/2 ( h2 )
+ String httpURI_fixed;
+ String httpURI_chunk;
+ String httpsURI_fixed;
+ String httpsURI_chunk;
+ String http2URI_fixed;
+ String http2URI_chunk;
+ String https2URI_fixed;
+ String https2URI_chunk;
+
+ static final int ITERATION_COUNT = 2;
+ // a shared executor helps reduce the amount of threads created by the test
+ static final Executor executor = new TestExecutor(Executors.newCachedThreadPool());
+ static final ConcurrentMap<String, Throwable> FAILURES = new ConcurrentHashMap<>();
+ static volatile boolean tasksFailed;
+
+ static class TestExecutor implements Executor {
+ final AtomicLong tasks = new AtomicLong();
+ Executor executor;
+ TestExecutor(Executor executor) {
+ this.executor = executor;
+ }
+
+ @Override
+ public void execute(Runnable command) {
+ long id = tasks.incrementAndGet();
+ executor.execute(() -> {
+ try {
+ command.run();
+ } catch (Throwable t) {
+ tasksFailed = true;
+ System.out.printf("Task %s failed: %s%n", id, t);
+ System.err.printf("Task %s failed: %s%n", id, t);
+ FAILURES.putIfAbsent("Task " + id, t);
+ throw t;
+ }
+ });
+ }
+ }
+
+ @AfterClass
+ static final void printFailedTests() {
+ if (FAILURES.isEmpty()) return;
+ out.println("Failed tests: ");
+ FAILURES.entrySet().forEach((e) -> {
+ out.printf("\t%s: %s%n", e.getKey(), e.getValue());
+ e.getValue().printStackTrace();
+ });
+ if (tasksFailed) {
+ throw new RuntimeException("Some tasks failed");
+ }
+ }
+
+ @DataProvider(name = "variants")
+ public Object[][] variants() {
+ return new Object[][]{
+ { httpURI_fixed, false },
+ { httpURI_chunk, false },
+ { httpsURI_fixed, false },
+ { httpsURI_chunk, false },
+ { http2URI_fixed, false },
+ { http2URI_chunk, false },
+ { https2URI_fixed, false },
+ { https2URI_chunk, false },
+
+ { httpURI_fixed, true },
+ { httpURI_chunk, true },
+ { httpsURI_fixed, true },
+ { httpsURI_chunk, true },
+ { http2URI_fixed, true },
+ { http2URI_chunk, true },
+ { https2URI_fixed, true },
+ { https2URI_chunk, true },
+ };
+ }
+
+ HttpClient newHttpClient() {
+ return HttpClient.newBuilder()
+ .executor(executor)
+ .sslContext(sslContext)
+ .build();
+ }
+
+ @Test(dataProvider = "variants")
+ public void testNoThrows(String uri, boolean sameClient) throws Exception {
+ HttpClient client = null;
+ for (int i=0; i< ITERATION_COUNT; i++) {
+ if (!sameClient || client == null)
+ client = newHttpClient();
+
+ HttpRequest req = HttpRequest.newBuilder(URI.create(uri))
+ .build();
+ BodyHandler<String> handler = new ThrowingBodyHandler((w) -> {},
+ BodyHandler.asString());
+ HttpResponse<String> response = client.send(req, handler);
+ String body = response.body();
+ assertEquals(URI.create(body).getPath(), URI.create(uri).getPath());
+ }
+ }
+
+ @Test(dataProvider = "variants")
+ public void testThrowingAsString(String uri, boolean sameClient) throws Exception {
+ String test = format("testThrowingAsString(%s,%b)", uri, sameClient);
+ testThrowing(test, uri, sameClient, BodyHandler::asString,
+ this::shouldHaveThrown, false);
+ }
+
+ @Test(dataProvider = "variants")
+ public void testThrowingAsLines(String uri, boolean sameClient) throws Exception {
+ String test = format("testThrowingAsLines(%s,%b)", uri, sameClient);
+ testThrowing(test, uri, sameClient, BodyHandler::asLines,
+ this::checkAsLines, false);
+ }
+
+ @Test(dataProvider = "variants")
+ public void testThrowingAsInputStream(String uri, boolean sameClient) throws Exception {
+ String test = format("testThrowingAsInputStream(%s,%b)", uri, sameClient);
+ testThrowing(test, uri, sameClient, BodyHandler::asInputStream,
+ this::checkAsInputStream, false);
+ }
+
+ @Test(dataProvider = "variants")
+ public void testThrowingAsStringAsync(String uri, boolean sameClient) throws Exception {
+ String test = format("testThrowingAsStringAsync(%s,%b)", uri, sameClient);
+ testThrowing(uri, sameClient, BodyHandler::asString,
+ this::shouldHaveThrown, true);
+ }
+
+ @Test(dataProvider = "variants")
+ public void testThrowingAsLinesAsync(String uri, boolean sameClient) throws Exception {
+ String test = format("testThrowingAsLinesAsync(%s,%b)", uri, sameClient);
+ testThrowing(test, uri, sameClient, BodyHandler::asLines,
+ this::checkAsLines, true);
+ }
+
+ @Test(dataProvider = "variants")
+ public void testThrowingAsInputStreamAsync(String uri, boolean sameClient) throws Exception {
+ String test = format("testThrowingAsInputStreamAsync(%s,%b)", uri, sameClient);
+ testThrowing(test, uri, sameClient, BodyHandler::asInputStream,
+ this::checkAsInputStream, true);
+ }
+
+ private <T,U> void testThrowing(String name, String uri, boolean sameClient,
+ Supplier<BodyHandler<T>> handlers,
+ Finisher finisher, boolean async)
+ throws Exception {
+ out.printf("%n%s%n", name);
+ try {
+ testThrowing(uri, sameClient, handlers, finisher, async);
+ } catch (Error | Exception x) {
+ FAILURES.putIfAbsent(name, x);
+ throw x;
+ }
+ }
+
+ private <T,U> void testThrowing(String uri, boolean sameClient,
+ Supplier<BodyHandler<T>> handlers,
+ Finisher finisher, boolean async)
+ throws Exception {
+ HttpClient client = null;
+ RuntimeExceptionThrower thrower = new RuntimeExceptionThrower();
+ for (Where where : Where.values()) {
+ if (where == Where.ON_SUBSCRIBE) continue;
+ if (where == Where.ON_ERROR) continue;
+ if (where == Where.GET_BODY) continue; // doesn't work with HTTP/2
+ if (!sameClient || client == null)
+ client = newHttpClient();
+
+ HttpRequest req = HttpRequest.newBuilder(URI.create(uri))
+ .build();
+ BodyHandler<T> handler = new ThrowingBodyHandler(where.select(thrower), handlers.get());
+ System.out.println("try throwing in " + where);
+ HttpResponse<T> response = null;
+ if (async) {
+ try {
+ response = client.sendAsync(req, handler).join();
+ } catch (Error | Exception x) {
+ UncheckedCustomException cause = findCause(x,
+ UncheckedCustomException.class::isInstance);
+ if (cause == null) throw x;
+ System.out.println("Got expected exception: " + cause);
+ }
+ } else {
+ try {
+ response = client.send(req, handler);
+ } catch (UncheckedCustomException t) {
+ System.out.println("Got expected exception: " + t);
+ }
+ }
+ if (response != null) {
+ finisher.finish(where, response);
+ }
+ }
+ }
+
+ enum Where {BODY_HANDLER, ON_SUBSCRIBE, ON_NEXT, ON_COMPLETE, ON_ERROR, GET_BODY;
+ public Consumer<Where> select(Consumer<Where> consumer) {
+ return new Consumer<Where>() {
+ @Override
+ public void accept(Where where) {
+ if (Where.this == where) {
+ consumer.accept(where);
+ }
+ }
+ };
+ }
+ }
+
+ interface Finisher<T,U> {
+ U finish(Where w, HttpResponse<T> resp) throws IOException;
+ }
+
+ <T,U> U shouldHaveThrown(Where w, HttpResponse<T> resp) {
+ throw new RuntimeException("Expected exception not thrown in " + w);
+ }
+
+ List<String> checkAsLines(Where w, HttpResponse<Stream<String>> resp) {
+ switch(w) {
+ case BODY_HANDLER: return shouldHaveThrown(w, resp);
+ case ON_SUBSCRIBE: return shouldHaveThrown(w, resp);
+ case GET_BODY: return shouldHaveThrown(w, resp);
+ default: break;
+ }
+ List<String> result = null;
+ try {
+ result = resp.body().collect(Collectors.toList());
+ } catch (Error | Exception x) {
+ UncheckedCustomException cause =
+ findCause(x, UncheckedCustomException.class::isInstance);
+ if (cause != null) {
+ out.println("Got expected exception in " + w + ": " + x);
+ return result;
+ }
+ throw x;
+ }
+ throw new RuntimeException("Expected exception not thrown in " + w);
+ }
+
+ List<String> checkAsInputStream(Where w, HttpResponse<InputStream> resp)
+ throws IOException
+ {
+ switch(w) {
+ case BODY_HANDLER: return shouldHaveThrown(w, resp);
+ case ON_SUBSCRIBE: return shouldHaveThrown(w, resp);
+ case GET_BODY: return shouldHaveThrown(w, resp);
+ default: break;
+ }
+ List<String> result = null;
+ try (InputStreamReader r1 = new InputStreamReader(resp.body(), UTF_8);
+ BufferedReader r = new BufferedReader(r1)) {
+ try {
+ result = r.lines().collect(Collectors.toList());
+ } catch (Error | Exception x) {
+ UncheckedCustomException cause =
+ findCause(x, UncheckedCustomException.class::isInstance);
+ if (cause != null) {
+ out.println("Got expected exception in " + w + ": " + x);
+ return result;
+ }
+ throw x;
+ }
+ }
+ throw new RuntimeException("Expected exception not thrown in " + w);
+ }
+
+ private static <E extends Throwable> E findCause(Throwable x,
+ Predicate<Throwable> filter) {
+ while (x != null && !filter.test(x)) x = x.getCause();
+ return (E)x;
+ }
+
+ static class RuntimeExceptionThrower implements Consumer<Where> {
+ @Override
+ public void accept(Where where) {
+ throw new UncheckedCustomException(where.name());
+ }
+ }
+
+ static class UncheckedCustomException extends RuntimeException {
+ UncheckedCustomException(String message) {
+ super(message);
+ }
+ UncheckedCustomException(String message, Throwable cause) {
+ super(message, cause);
+ }
+ }
+
+ static class ThrowingBodyHandler<T> implements BodyHandler<T> {
+ final Consumer<Where> throwing;
+ final BodyHandler<T> bodyHandler;
+ ThrowingBodyHandler(Consumer<Where> throwing, BodyHandler<T> bodyHandler) {
+ this.throwing = throwing;
+ this.bodyHandler = bodyHandler;
+ }
+ @Override
+ public BodySubscriber<T> apply(int statusCode, HttpHeaders responseHeaders) {
+ throwing.accept(Where.BODY_HANDLER);
+ BodySubscriber<T> subscriber = bodyHandler.apply(statusCode, responseHeaders);
+ return new ThrowingBodySubscriber(throwing, subscriber);
+ }
+ }
+
+ static class ThrowingBodySubscriber<T> implements BodySubscriber<T> {
+ private final BodySubscriber<T> subscriber;
+ volatile boolean onSubscribeCalled;
+ final Consumer<Where> throwing;
+ ThrowingBodySubscriber(Consumer<Where> throwing, BodySubscriber<T> subscriber) {
+ this.throwing = throwing;
+ this.subscriber = subscriber;
+ }
+
+ @Override
+ public void onSubscribe(Flow.Subscription subscription) {
+ //out.println("onSubscribe ");
+ onSubscribeCalled = true;
+ throwing.accept(Where.ON_SUBSCRIBE);
+ subscriber.onSubscribe(subscription);
+ }
+
+ @Override
+ public void onNext(List<ByteBuffer> item) {
+ // out.println("onNext " + item);
+ assertTrue(onSubscribeCalled);
+ throwing.accept(Where.ON_NEXT);
+ subscriber.onNext(item);
+ }
+
+ @Override
+ public void onError(Throwable throwable) {
+ //out.println("onError");
+ assertTrue(onSubscribeCalled);
+ throwing.accept(Where.ON_ERROR);
+ subscriber.onError(throwable);
+ }
+
+ @Override
+ public void onComplete() {
+ //out.println("onComplete");
+ assertTrue(onSubscribeCalled, "onComplete called before onSubscribe");
+ throwing.accept(Where.ON_COMPLETE);
+ subscriber.onComplete();
+ }
+
+ @Override
+ public CompletionStage<T> getBody() {
+ throwing.accept(Where.GET_BODY);
+ return subscriber.getBody();
+ }
+ }
+
+
+ @BeforeTest
+ public void setup() throws Exception {
+ sslContext = new SimpleSSLContext().get();
+ if (sslContext == null)
+ throw new AssertionError("Unexpected null sslContext");
+
+ // HTTP/1.1
+ HttpTestHandler h1_fixedLengthHandler = new HTTP_FixedLengthHandler();
+ HttpTestHandler h1_chunkHandler = new HTTP_ChunkedHandler();
+ InetSocketAddress sa = new InetSocketAddress(0);
+ httpTestServer = HttpTestServer.of(HttpServer.create(sa, 0));
+ httpTestServer.addHandler(h1_fixedLengthHandler, "/http1/fixed");
+ httpTestServer.addHandler(h1_chunkHandler, "/http1/chunk");
+ httpURI_fixed = "http://127.0.0.1:" + httpTestServer.getAddress().getPort() + "/http1/fixed/x";
+ httpURI_chunk = "http://127.0.0.1:" + httpTestServer.getAddress().getPort() + "/http1/chunk/x";
+
+ HttpsServer httpsServer = HttpsServer.create(sa, 0);
+ httpsServer.setHttpsConfigurator(new HttpsConfigurator(sslContext));
+ httpsTestServer = HttpTestServer.of(httpsServer);
+ httpsTestServer.addHandler(h1_fixedLengthHandler, "/https1/fixed");
+ httpsTestServer.addHandler(h1_chunkHandler, "/https1/chunk");
+ httpsURI_fixed = "https://127.0.0.1:" + httpsTestServer.getAddress().getPort() + "/https1/fixed/x";
+ httpsURI_chunk = "https://127.0.0.1:" + httpsTestServer.getAddress().getPort() + "/https1/chunk/x";
+
+ // HTTP/2
+ HttpTestHandler h2_fixedLengthHandler = new HTTP_FixedLengthHandler();
+ HttpTestHandler h2_chunkedHandler = new HTTP_ChunkedHandler();
+
+ http2TestServer = HttpTestServer.of(new Http2TestServer("127.0.0.1", false, 0));
+ http2TestServer.addHandler(h2_fixedLengthHandler, "/http2/fixed");
+ http2TestServer.addHandler(h2_chunkedHandler, "/http2/chunk");
+ int port = http2TestServer.getAddress().getPort();
+ http2URI_fixed = "http://127.0.0.1:" + port + "/http2/fixed/x";
+ http2URI_chunk = "http://127.0.0.1:" + port + "/http2/chunk/x";
+
+ https2TestServer = HttpTestServer.of(new Http2TestServer("127.0.0.1", true, 0));
+ https2TestServer.addHandler(h2_fixedLengthHandler, "/https2/fixed");
+ https2TestServer.addHandler(h2_chunkedHandler, "/https2/chunk");
+ port = https2TestServer.getAddress().getPort();
+ https2URI_fixed = "https://127.0.0.1:" + port + "/https2/fixed/x";
+ https2URI_chunk = "https://127.0.0.1:" + port + "/https2/chunk/x";
+
+ httpTestServer.start();
+ httpsTestServer.start();
+ http2TestServer.start();
+ https2TestServer.start();
+ }
+
+ @AfterTest
+ public void teardown() throws Exception {
+ httpTestServer.stop();
+ httpsTestServer.stop();
+ http2TestServer.stop();
+ https2TestServer.stop();
+ }
+
+ static class HTTP_FixedLengthHandler implements HttpTestHandler {
+ @Override
+ public void handle(HttpTestExchange t) throws IOException {
+ out.println("HTTP_FixedLengthHandler received request to " + t.getRequestURI());
+ try (InputStream is = t.getRequestBody()) {
+ is.readAllBytes();
+ }
+ byte[] resp = t.getRequestURI().toString().getBytes(StandardCharsets.UTF_8);
+ t.sendResponseHeaders(200, resp.length); //fixed content length
+ try (OutputStream os = t.getResponseBody()) {
+ os.write(resp);
+ }
+ }
+ }
+
+ static class HTTP_ChunkedHandler implements HttpTestHandler {
+ @Override
+ public void handle(HttpTestExchange t) throws IOException {
+ out.println("HTTP_ChunkedHandler received request to " + t.getRequestURI());
+ byte[] resp = t.getRequestURI().toString().getBytes(StandardCharsets.UTF_8);
+ try (InputStream is = t.getRequestBody()) {
+ is.readAllBytes();
+ }
+ t.sendResponseHeaders(200, -1); // chunked/variable
+ try (OutputStream os = t.getResponseBody()) {
+ os.write(resp);
+ }
+ }
+ }
+
+}