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FlowAdapterPublisherTest.java
FlowAdapterPublisherTest.java 16.00 KiB
/*
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* 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
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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.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.URI;
import java.nio.ByteBuffer;
import java.nio.MappedByteBuffer;
import java.util.Arrays;
import java.util.concurrent.Flow;
import java.util.concurrent.Flow.Publisher;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
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 jdk.httpclient.test.lib.common.HttpServerAdapters;
import jdk.httpclient.test.lib.http2.Http2TestServer;
import jdk.httpclient.test.lib.http2.Http2TestExchange;
import jdk.httpclient.test.lib.http2.Http2Handler;
import jdk.test.lib.net.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.util.stream.Collectors.joining;
import static java.nio.charset.StandardCharsets.UTF_8;
import static java.net.http.HttpRequest.BodyPublishers.fromPublisher;
import static java.net.http.HttpResponse.BodyHandlers.ofString;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertThrows;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;
/*
* @test
* @summary Basic tests for Flow adapter Publishers
* @library /test/lib /test/jdk/java/net/httpclient/lib
* @build jdk.httpclient.test.lib.http2.Http2TestServer
* jdk.test.lib.net.SimpleSSLContext * @run testng/othervm FlowAdapterPublisherTest
*/
public class FlowAdapterPublisherTest {
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;
static final Class<IllegalArgumentException> IAE = IllegalArgumentException.class;
@Test
public void testAPIExceptions() {
assertThrows(NPE, () -> fromPublisher(null));
assertThrows(NPE, () -> fromPublisher(null, 1));
assertThrows(IAE, () -> fromPublisher(new BBPublisher(), 0));
assertThrows(IAE, () -> fromPublisher(new BBPublisher(), -1));
assertThrows(IAE, () -> fromPublisher(new BBPublisher(), Long.MIN_VALUE));
Publisher publisher = fromPublisher(new BBPublisher());
assertThrows(NPE, () -> publisher.subscribe(null));
}
// Flow.Publisher<ByteBuffer>
@Test(dataProvider = "uris")
void testByteBufferPublisherUnknownLength(String url) {
String[] body = new String[] { "You know ", "it's summer ", "in Ireland ",
"when the ", "rain gets ", "warmer." };
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromPublisher(new BBPublisher(body))).build();
HttpResponse<String> response = client.sendAsync(request, ofString(UTF_8)).join();
String text = response.body();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, Arrays.stream(body).collect(joining()));
}
@Test(dataProvider = "uris")
void testByteBufferPublisherFixedLength(String url) {
String[] body = new String[] { "You know ", "it's summer ", "in Ireland ",
"when the ", "rain gets ", "warmer." };
int cl = Arrays.stream(body).mapToInt(String::length).sum();
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromPublisher(new BBPublisher(body), cl)).build();
HttpResponse<String> response = client.sendAsync(request, ofString(UTF_8)).join();
String text = response.body();
System.out.println(text);
assertEquals(response.statusCode(), 200); assertEquals(text, Arrays.stream(body).collect(joining()));
}
// Flow.Publisher<MappedByteBuffer>
@Test(dataProvider = "uris")
void testMappedByteBufferPublisherUnknownLength(String url) {
String[] body = new String[] { "God invented ", "whiskey to ", "keep the ",
"Irish from ", "ruling the ", "world." };
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromPublisher(new MBBPublisher(body))).build();
HttpResponse<String> response = client.sendAsync(request, ofString(UTF_8)).join();
String text = response.body();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, Arrays.stream(body).collect(joining()));
}
@Test(dataProvider = "uris")
void testMappedByteBufferPublisherFixedLength(String url) {
String[] body = new String[] { "God invented ", "whiskey to ", "keep the ",
"Irish from ", "ruling the ", "world." };
int cl = Arrays.stream(body).mapToInt(String::length).sum();
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromPublisher(new MBBPublisher(body), cl)).build();
HttpResponse<String> response = client.sendAsync(request, ofString(UTF_8)).join();
String text = response.body();
System.out.println(text);
assertEquals(response.statusCode(), 200);
assertEquals(text, Arrays.stream(body).collect(joining()));
}
// The following two tests depend on Exception detail messages, which is
// not ideal, but necessary to discern correct behavior. They should be
// updated if the exception message is updated.
@Test(dataProvider = "uris")
void testPublishTooFew(String url) throws InterruptedException {
String[] body = new String[] { "You know ", "it's summer ", "in Ireland ",
"when the ", "rain gets ", "warmer." };
int cl = Arrays.stream(body).mapToInt(String::length).sum() + 1; // length + 1
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromPublisher(new BBPublisher(body), cl)).build();
try {
HttpResponse<String> response = client.send(request, ofString(UTF_8));
fail("Unexpected response: " + response);
} catch (IOException expected) {
assertMessage(expected, "Too few bytes returned");
}
}
@Test(dataProvider = "uris")
void testPublishTooMany(String url) throws InterruptedException {
String[] body = new String[] { "You know ", "it's summer ", "in Ireland ",
"when the ", "rain gets ", "warmer." };
int cl = Arrays.stream(body).mapToInt(String::length).sum() - 1; // length - 1
HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build();
HttpRequest request = HttpRequest.newBuilder(URI.create(url))
.POST(fromPublisher(new BBPublisher(body), cl)).build();
try {
HttpResponse<String> response = client.send(request, ofString(UTF_8));
fail("Unexpected response: " + response);
} catch (IOException expected) { assertMessage(expected, "Too many bytes in request body");
}
}
private void assertMessage(Throwable t, String contains) {
if (!t.getMessage().contains(contains)) {
String error = "Exception message:[" + t.toString() + "] doesn't contain [" + contains + "]";
throw new AssertionError(error, t);
}
}
static class BBPublisher extends AbstractPublisher
implements Flow.Publisher<ByteBuffer>
{
BBPublisher(String... bodyParts) { super(bodyParts); }
@Override
public void subscribe(Flow.Subscriber<? super ByteBuffer> subscriber) {
this.subscriber = subscriber;
subscriber.onSubscribe(new InternalSubscription());
}
}
static class MBBPublisher extends AbstractPublisher
implements Flow.Publisher<MappedByteBuffer>
{
MBBPublisher(String... bodyParts) { super(bodyParts); }
@Override
public void subscribe(Flow.Subscriber<? super MappedByteBuffer> subscriber) {
this.subscriber = subscriber;
subscriber.onSubscribe(new InternalSubscription());
}
}
static abstract class AbstractPublisher {
private final String[] bodyParts;
protected volatile Flow.Subscriber subscriber;
AbstractPublisher(String... bodyParts) {
this.bodyParts = bodyParts;
}
class InternalSubscription implements Flow.Subscription {
private final AtomicLong demand = new AtomicLong();
private final AtomicBoolean cancelled = new AtomicBoolean();
private volatile int position;
private static final int IDLE = 1;
private static final int PUSHING = 2;
private static final int AGAIN = 4;
private final AtomicInteger state = new AtomicInteger(IDLE);
@Override
public void request(long n) {
if (n <= 0L) {
subscriber.onError(new IllegalArgumentException(
"non-positive subscription request"));
return;
}
if (cancelled.get()) {
return;
}
while (true) {
long prev = demand.get(), d;
if ((d = prev + n) < prev) // saturate
d = Long.MAX_VALUE;
if (demand.compareAndSet(prev, d)) break;
}
while (true) {
int s = state.get();
if (s == IDLE) {
if (state.compareAndSet(IDLE, PUSHING)) {
while (true) {
push();
if (state.compareAndSet(PUSHING, IDLE))
return;
else if (state.compareAndSet(AGAIN, PUSHING))
continue;
}
}
} else if (s == PUSHING) {
if (state.compareAndSet(PUSHING, AGAIN))
return;
} else if (s == AGAIN){
// do nothing, the pusher will already rerun
return;
} else {
throw new AssertionError("Unknown state:" + s);
}
}
}
private void push() {
long prev;
while ((prev = demand.get()) > 0) {
if (!demand.compareAndSet(prev, prev -1))
continue;
int index = position;
if (index < bodyParts.length) {
position++;
subscriber.onNext(ByteBuffer.wrap(bodyParts[index].getBytes(UTF_8)));
}
}
if (position == bodyParts.length && !cancelled.get()) {
cancelled.set(true);
subscriber.onComplete();
}
}
@Override
public void cancel() {
if (cancelled.compareAndExchange(false, true))
return; // already cancelled
}
}
}
static String serverAuthority(HttpServer server) {
return InetAddress.getLoopbackAddress().getHostName() + ":"
+ server.getAddress().getPort();
}
@BeforeTest
public void setup() throws Exception {
sslContext = new SimpleSSLContext().get();
if (sslContext == null)
throw new AssertionError("Unexpected null sslContext");
InetSocketAddress sa = new InetSocketAddress(InetAddress.getLoopbackAddress(),0);
httpTestServer = HttpServer.create(sa, 0);
httpTestServer.createContext("/http1/echo", new Http1EchoHandler());
httpURI = "http://" + serverAuthority(httpTestServer) + "/http1/echo";
httpsTestServer = HttpsServer.create(sa, 0);
httpsTestServer.setHttpsConfigurator(new HttpsConfigurator(sslContext));
httpsTestServer.createContext("/https1/echo", new Http1EchoHandler());
httpsURI = "https://" + serverAuthority(httpsTestServer) + "/https1/echo";
http2TestServer = new Http2TestServer("localhost", false, 0);
http2TestServer.addHandler(new Http2EchoHandler(), "/http2/echo");
http2URI = "http://" + http2TestServer.serverAuthority() + "/http2/echo";
https2TestServer = new Http2TestServer("localhost", true, sslContext);
https2TestServer.addHandler(new Http2EchoHandler(), "/https2/echo");
https2URI = "https://" + https2TestServer.serverAuthority() + "/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);
}
}
}
}