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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
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*
* 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.
*
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import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UncheckedIOException;
import java.net.InetSocketAddress;
import java.net.URI;
import java.nio.ByteBuffer;
import java.util.Collection;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Flow;
import java.util.concurrent.Flow.Subscriber;
import java.util.function.Function;
import java.util.function.Supplier;
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 java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandler;
import java.net.http.HttpResponse.BodySubscriber;
import jdk.testlibrary.SimpleSSLContext;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import javax.net.ssl.SSLContext;
import static java.nio.charset.StandardCharsets.UTF_8;
import static java.net.http.HttpRequest.BodyPublisher.fromString;
import static java.net.http.HttpResponse.BodySubscriber.asByteArray;
import static java.net.http.HttpResponse.BodySubscriber.asInputStream;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertThrows;
import static org.testng.Assert.assertTrue;
/*
* @test
* @summary Basic tests for Flow adapter Subscribers
* @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
* java.logging
* jdk.httpserver
* @library /lib/testlibrary http2/server
* @build Http2TestServer
* @build jdk.testlibrary.SimpleSSLContext
* @run testng/othervm FlowAdapterSubscriberTest
*/
public class FlowAdapterSubscriberTest {
SSLContext sslContext;
HttpServer httpTestServer; // HTTP/1.1 [ 4 servers ]
HttpsServer httpsTestServer; // HTTPS/1.1
Http2TestServer http2TestServer; // HTTP/2 ( h2c )
Http2TestServer https2TestServer; // HTTP/2 ( h2 )
String httpURI;
String httpsURI;
String http2URI;
String https2URI;
@DataProvider(name = "uris")
public Object[][] variants() {
return new Object[][]{
{ httpURI },
{ httpsURI },
{ http2URI },
{ https2URI },
};
}
static final Class<NullPointerException> NPE = NullPointerException.class;
@Test
public void testNull() {
assertThrows(NPE, () -> BodyHandler.fromSubscriber(null));
assertThrows(NPE, () -> BodyHandler.fromSubscriber(null, Function.identity()));
assertThrows(NPE, () -> BodyHandler.fromSubscriber(new ListSubscriber(), null));
assertThrows(NPE, () -> BodyHandler.fromSubscriber(null, null));
assertThrows(NPE, () -> BodySubscriber.fromSubscriber(null));
assertThrows(NPE, () -> BodySubscriber.fromSubscriber(null, Function.identity()));
assertThrows(NPE, () -> BodySubscriber.fromSubscriber(new ListSubscriber(), null));
assertThrows(NPE, () -> BodySubscriber.fromSubscriber(null, null));
Subscriber subscriber = BodySubscriber.fromSubscriber(new ListSubscriber());
assertThrows(NPE, () -> subscriber.onSubscribe(null));
assertThrows(NPE, () -> subscriber.onNext(null));
assertThrows(NPE, () -> subscriber.onError(null));
}
// List<ByteBuffer>
@Test(dataProvider = "uris")
void testListWithFinisher(String url) {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("May the luck of the Irish be with you!")).build();
ListSubscriber subscriber = new ListSubscriber();
HttpResponse<String> response = client.sendAsync(request,
BodyHandler.fromSubscriber(subscriber, Supplier::get)).join();
String text = response.body();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, "May the luck of the Irish be with you!");
}
@Test(dataProvider = "uris")
void testListWithoutFinisher(String url) {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("May the luck of the Irish be with you!")).build();
ListSubscriber subscriber = new ListSubscriber();
HttpResponse<Void> response = client.sendAsync(request,
BodyHandler.fromSubscriber(subscriber)).join();
String text = subscriber.get();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, "May the luck of the Irish be with you!");
}
@Test(dataProvider = "uris")
void testListWithFinisherBlocking(String url) throws Exception {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("May the luck of the Irish be with you!")).build();
ListSubscriber subscriber = new ListSubscriber();
HttpResponse<String> response = client.send(request,
BodyHandler.fromSubscriber(subscriber, Supplier::get));
String text = response.body();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, "May the luck of the Irish be with you!");
}
@Test(dataProvider = "uris")
void testListWithoutFinisherBlocking(String url) throws Exception {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("May the luck of the Irish be with you!")).build();
ListSubscriber subscriber = new ListSubscriber();
HttpResponse<Void> response = client.send(request,
BodyHandler.fromSubscriber(subscriber));
String text = subscriber.get();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, "May the luck of the Irish be with you!");
}
// Collection<ByteBuffer>
@Test(dataProvider = "uris")
void testCollectionWithFinisher(String url) {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("What's the craic?")).build();
CollectionSubscriber subscriber = new CollectionSubscriber();
HttpResponse<String> response = client.sendAsync(request,
BodyHandler.fromSubscriber(subscriber, CollectionSubscriber::get)).join();
String text = response.body();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, "What's the craic?");
}
@Test(dataProvider = "uris")
void testCollectionWithoutFinisher(String url) {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("What's the craic?")).build();
CollectionSubscriber subscriber = new CollectionSubscriber();
HttpResponse<Void> response = client.sendAsync(request,
BodyHandler.fromSubscriber(subscriber)).join();
String text = subscriber.get();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, "What's the craic?");
}
@Test(dataProvider = "uris")
void testCollectionWithFinisherBlocking(String url) throws Exception {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("What's the craic?")).build();
CollectionSubscriber subscriber = new CollectionSubscriber();
HttpResponse<String> response = client.send(request,
BodyHandler.fromSubscriber(subscriber, CollectionSubscriber::get));
String text = response.body();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, "What's the craic?");
}
@Test(dataProvider = "uris")
void testCollectionWithoutFinisheBlocking(String url) throws Exception {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("What's the craic?")).build();
CollectionSubscriber subscriber = new CollectionSubscriber();
HttpResponse<Void> response = client.send(request,
BodyHandler.fromSubscriber(subscriber));
String text = subscriber.get();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, "What's the craic?");
}
// Iterable<ByteBuffer>
@Test(dataProvider = "uris")
void testIterableWithFinisher(String url) {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("We're sucking diesel now!")).build();
IterableSubscriber subscriber = new IterableSubscriber();
HttpResponse<String> response = client.sendAsync(request,
BodyHandler.fromSubscriber(subscriber, Supplier::get)).join();
String text = response.body();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, "We're sucking diesel now!");
}
@Test(dataProvider = "uris")
void testIterableWithoutFinisher(String url) {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("We're sucking diesel now!")).build();
IterableSubscriber subscriber = new IterableSubscriber();
HttpResponse<Void> response = client.sendAsync(request,
BodyHandler.fromSubscriber(subscriber)).join();
String text = subscriber.get();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, "We're sucking diesel now!");
}
@Test(dataProvider = "uris")
void testIterableWithFinisherBlocking(String url) throws Exception {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("We're sucking diesel now!")).build();
IterableSubscriber subscriber = new IterableSubscriber();
HttpResponse<String> response = client.send(request,
BodyHandler.fromSubscriber(subscriber, Supplier::get));
String text = response.body();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, "We're sucking diesel now!");
}
@Test(dataProvider = "uris")
void testIterableWithoutFinisherBlocking(String url) throws Exception{
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("We're sucking diesel now!")).build();
IterableSubscriber subscriber = new IterableSubscriber();
HttpResponse<Void> response = client.send(request,
BodyHandler.fromSubscriber(subscriber));
String text = subscriber.get();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, "We're sucking diesel now!");
}
// Subscriber<Object>
@Test(dataProvider = "uris")
void testObjectWithFinisher(String url) {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("May the wind always be at your back.")).build();
ObjectSubscriber subscriber = new ObjectSubscriber();
HttpResponse<String> response = client.sendAsync(request,
BodyHandler.fromSubscriber(subscriber, ObjectSubscriber::get)).join();
String text = response.body();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertTrue(text.length() != 0); // what else can be asserted!
}
@Test(dataProvider = "uris")
void testObjectWithoutFinisher(String url) {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("May the wind always be at your back.")).build();
ObjectSubscriber subscriber = new ObjectSubscriber();
HttpResponse<Void> response = client.sendAsync(request,
BodyHandler.fromSubscriber(subscriber)).join();
String text = subscriber.get();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertTrue(text.length() != 0); // what else can be asserted!
}
@Test(dataProvider = "uris")
void testObjectWithFinisherBlocking(String url) throws Exception {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("May the wind always be at your back.")).build();
ObjectSubscriber subscriber = new ObjectSubscriber();
HttpResponse<String> response = client.send(request,
BodyHandler.fromSubscriber(subscriber, ObjectSubscriber::get));
String text = response.body();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertTrue(text.length() != 0); // what else can be asserted!
}
@Test(dataProvider = "uris")
void testObjectWithoutFinisherBlocking(String url) throws Exception {
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("May the wind always be at your back.")).build();
ObjectSubscriber subscriber = new ObjectSubscriber();
HttpResponse<Void> response = client.send(request,
BodyHandler.fromSubscriber(subscriber));
String text = subscriber.get();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertTrue(text.length() != 0); // what else can be asserted!
}
// -- mapping using convenience handlers
@Test(dataProvider = "uris")
void mappingFromByteArray(String url) throws Exception{
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("We're sucking diesel now!")).build();
client.sendAsync(request, BodyHandler.fromSubscriber(asByteArray(),
bas -> new String(bas.getBody().toCompletableFuture().join(), UTF_8)))
.thenApply(FlowAdapterSubscriberTest::assert200ResponseCode)
.thenApply(HttpResponse::body)
.thenAccept(body -> assertEquals(body, "We're sucking diesel now!"))
.join();
}
@Test(dataProvider = "uris")
void mappingFromInputStream(String url) throws Exception{
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromString("May the wind always be at your back.")).build();
client.sendAsync(request, BodyHandler.fromSubscriber(asInputStream(),
ins -> {
InputStream is = ins.getBody().toCompletableFuture().join();
return new String(uncheckedReadAllBytes(is), UTF_8); } ))
.thenApply(FlowAdapterSubscriberTest::assert200ResponseCode)
.thenApply(HttpResponse::body)
.thenAccept(body -> assertEquals(body, "May the wind always be at your back."))
.join();
}
/** An abstract Subscriber that converts all received data into a String. */
static abstract class AbstractSubscriber implements Supplier<String> {
protected volatile Flow.Subscription subscription;
protected volatile ByteArrayOutputStream baos = new ByteArrayOutputStream();
protected volatile String text;
public void onSubscribe(Flow.Subscription subscription) {
this.subscription = subscription;
subscription.request(Long.MAX_VALUE);
}
public void onError(Throwable throwable) {
throw new RuntimeException(throwable);
}
public void onComplete() {
text = new String(baos.toByteArray(), UTF_8);
}
@Override public String get() { return text; }
}
static class ListSubscriber extends AbstractSubscriber
implements Flow.Subscriber<List<ByteBuffer>>, Supplier<String>
{
@Override public void onNext(List<ByteBuffer> item) {
for (ByteBuffer bb : item) {
byte[] ba = new byte[bb.remaining()];
bb.get(ba);
uncheckedWrite(baos, ba);
}
}
}
static class CollectionSubscriber extends AbstractSubscriber
implements Flow.Subscriber<Collection<ByteBuffer>>, Supplier<String>
{
@Override public void onNext(Collection<ByteBuffer> item) {
for (ByteBuffer bb : item) {
byte[] ba = new byte[bb.remaining()];
bb.get(ba);
uncheckedWrite(baos, ba);
}
}
}
static class IterableSubscriber extends AbstractSubscriber
implements Flow.Subscriber<Iterable<ByteBuffer>>, Supplier<String>
{
@Override public void onNext(Iterable<ByteBuffer> item) {
for (ByteBuffer bb : item) {
byte[] ba = new byte[bb.remaining()];
bb.get(ba);
uncheckedWrite(baos, ba);
}
}
}
static class ObjectSubscriber extends AbstractSubscriber
implements Flow.Subscriber<Object>, Supplier<String>
{
@Override public void onNext(Object item) {
// What can anyone do with Object, cast or toString it ?
uncheckedWrite(baos, item.toString().getBytes(UTF_8));
}
}
static void uncheckedWrite(ByteArrayOutputStream baos, byte[] ba) {
try {
baos.write(ba);
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
static byte[] uncheckedReadAllBytes(InputStream is) {
try {
return is.readAllBytes();
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
static final <T> HttpResponse<T> assert200ResponseCode(HttpResponse<T> response) {
assertEquals(response.statusCode(), 200);
return response;
}
@BeforeTest
public void setup() throws Exception {
sslContext = new SimpleSSLContext().get();
if (sslContext == null)
throw new AssertionError("Unexpected null sslContext");
InetSocketAddress sa = new InetSocketAddress("localhost", 0);
httpTestServer = HttpServer.create(sa, 0);
httpTestServer.createContext("/http1/echo", new Http1EchoHandler());
httpURI = "http://127.0.0.1:" + httpTestServer.getAddress().getPort() + "/http1/echo";
httpsTestServer = HttpsServer.create(sa, 0);
httpsTestServer.setHttpsConfigurator(new HttpsConfigurator(sslContext));
httpsTestServer.createContext("/https1/echo", new Http1EchoHandler());
httpsURI = "https://127.0.0.1:" + httpsTestServer.getAddress().getPort() + "/https1/echo";
http2TestServer = new Http2TestServer("127.0.0.1", false, 0);
http2TestServer.addHandler(new Http2EchoHandler(), "/http2/echo");
int port = http2TestServer.getAddress().getPort();
http2URI = "http://127.0.0.1:" + port + "/http2/echo";
https2TestServer = new Http2TestServer("127.0.0.1", true, 0);
https2TestServer.addHandler(new Http2EchoHandler(), "/https2/echo");
port = https2TestServer.getAddress().getPort();
https2URI = "https://127.0.0.1:" + port + "/https2/echo";
httpTestServer.start();
httpsTestServer.start();
http2TestServer.start();
https2TestServer.start();
}
@AfterTest
public void teardown() throws Exception {
httpTestServer.stop(0);
httpsTestServer.stop(0);
http2TestServer.stop();
https2TestServer.stop();
}
static class Http1EchoHandler implements HttpHandler {
@Override
public void handle(HttpExchange t) throws IOException {
try (InputStream is = t.getRequestBody();
OutputStream os = t.getResponseBody()) {
byte[] bytes = is.readAllBytes();
t.sendResponseHeaders(200, bytes.length);
os.write(bytes);
}
}
}
static class Http2EchoHandler implements Http2Handler {
@Override
public void handle(Http2TestExchange t) throws IOException {
try (InputStream is = t.getRequestBody();
OutputStream os = t.getResponseBody()) {
byte[] bytes = is.readAllBytes();
t.sendResponseHeaders(200, bytes.length);
os.write(bytes);
}
}
}
}