Examples with ReadListener javax.servlet.ReadListener used on opensource projects

Example 1 with ReadListener

use of javax.servlet.ReadListener in project jetty.project by eclipse.

the class MultiPartInputStreamTest method testBodyAlreadyConsumed.

@Test
public void testBodyAlreadyConsumed() throws Exception {
    ServletInputStream is = new ServletInputStream() {

        @Override
        public boolean isFinished() {
            return true;
        }

        @Override
        public boolean isReady() {
            return false;
        }

        @Override
        public void setReadListener(ReadListener readListener) {
        }

        @Override
        public int read() throws IOException {
            return 0;
        }
    };
    MultipartConfigElement config = new MultipartConfigElement(_dirname, 1024, 3072, 50);
    MultiPartInputStreamParser mpis = new MultiPartInputStreamParser(is, _contentType, config, _tmpDir);
    mpis.setDeleteOnExit(true);
    Collection<Part> parts = mpis.getParts();
    assertEquals(0, parts.size());
}

Example 2 with ReadListener

use of javax.servlet.ReadListener in project jetty.project by eclipse.

the class AsyncIOServletTest method testWriteFromOnDataAvailable.

@Test
public void testWriteFromOnDataAvailable() throws Exception {
    Queue<Throwable> errors = new ConcurrentLinkedQueue<>();
    CountDownLatch writeLatch = new CountDownLatch(1);
    start(new HttpServlet() {

        @Override
        protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            AsyncContext asyncContext = request.startAsync();
            request.getInputStream().setReadListener(new ReadListener() {

                @Override
                public void onDataAvailable() throws IOException {
                    ServletInputStream input = request.getInputStream();
                    ServletOutputStream output = response.getOutputStream();
                    while (input.isReady()) {
                        byte[] buffer = new byte[512];
                        int read = input.read(buffer);
                        if (read < 0) {
                            asyncContext.complete();
                            break;
                        }
                        if (output.isReady())
                            output.write(buffer, 0, read);
                        else
                            Assert.fail();
                    }
                }

                @Override
                public void onAllDataRead() throws IOException {
                    asyncContext.complete();
                }

                @Override
                public void onError(Throwable t) {
                    errors.offer(t);
                }
            });
            response.getOutputStream().setWriteListener(new WriteListener() {

                @Override
                public void onWritePossible() throws IOException {
                    writeLatch.countDown();
                }

                @Override
                public void onError(Throwable t) {
                    errors.offer(t);
                }
            });
        }
    });
    String content = "0123456789ABCDEF";
    DeferredContentProvider contentProvider = new DeferredContentProvider();
    contentProvider.offer(ByteBuffer.wrap(content.getBytes(StandardCharsets.UTF_8)));
    CountDownLatch clientLatch = new CountDownLatch(1);
    client.newRequest(newURI()).method(HttpMethod.POST).path(servletPath).content(contentProvider).send(new BufferingResponseListener() {

        @Override
        public void onComplete(Result result) {
            if (result.isSucceeded()) {
                Response response = result.getResponse();
                assertThat(response.getStatus(), Matchers.equalTo(HttpStatus.OK_200));
                assertThat(getContentAsString(), Matchers.equalTo(content));
                assertThat(errors, Matchers.hasSize(0));
                clientLatch.countDown();
            }
        }
    });
    assertTrue(writeLatch.await(5, TimeUnit.SECONDS));
    contentProvider.close();
    assertTrue(clientLatch.await(5, TimeUnit.SECONDS));
}

Example 3 with ReadListener

use of javax.servlet.ReadListener in project jetty.project by eclipse.

the class AsyncIOServletTest method testAsyncReadEarlyEOF.

@Test
public void testAsyncReadEarlyEOF() throws Exception {
    // SSLEngine receives the close alert from the client, and when
    // the server passes the response to encrypt and write, SSLEngine
    // only generates the close alert back, without encrypting the
    // response, so we need to skip the transports over TLS.
    Assume.assumeThat(transport, Matchers.not(Matchers.isOneOf(Transport.HTTPS, Transport.H2)));
    String content = "jetty";
    int responseCode = HttpStatus.NO_CONTENT_204;
    CountDownLatch readLatch = new CountDownLatch(content.length());
    CountDownLatch errorLatch = new CountDownLatch(1);
    start(new HttpServlet() {

        @Override
        protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            AsyncContext asyncContext = request.startAsync();
            ServletInputStream input = request.getInputStream();
            input.setReadListener(new ReadListener() {

                @Override
                public void onDataAvailable() throws IOException {
                    while (input.isReady() && !input.isFinished()) {
                        int read = input.read();
                        // System.err.printf("%x%n", read);
                        readLatch.countDown();
                    }
                }

                @Override
                public void onAllDataRead() throws IOException {
                }

                @Override
                public void onError(Throwable x) {
                    response.setStatus(responseCode);
                    asyncContext.complete();
                    errorLatch.countDown();
                }
            });
        }
    });
    CountDownLatch responseLatch = new CountDownLatch(1);
    DeferredContentProvider contentProvider = new DeferredContentProvider();
    contentProvider.offer(ByteBuffer.wrap(content.getBytes(StandardCharsets.UTF_8)));
    org.eclipse.jetty.client.api.Request request = client.newRequest(newURI()).method(HttpMethod.POST).path(servletPath).content(contentProvider).onResponseSuccess(response -> responseLatch.countDown());
    Destination destination = client.getDestination(getScheme(), "localhost", connector.getLocalPort());
    FuturePromise<org.eclipse.jetty.client.api.Connection> promise = new FuturePromise<>();
    destination.newConnection(promise);
    org.eclipse.jetty.client.api.Connection connection = promise.get(5, TimeUnit.SECONDS);
    CountDownLatch clientLatch = new CountDownLatch(1);
    connection.send(request, result -> {
        assertThat(result.getResponse().getStatus(), Matchers.equalTo(responseCode));
        clientLatch.countDown();
    });
    assertTrue(readLatch.await(5, TimeUnit.SECONDS));
    switch(transport) {
        case HTTP:
        case HTTPS:
            ((HttpConnectionOverHTTP) connection).getEndPoint().shutdownOutput();
            break;
        case H2C:
        case H2:
            // In case of HTTP/2, we not only send the request, but also the preface and
            // SETTINGS frames. SETTINGS frame need to be replied, so we want to wait to
            // write the reply before shutting output down, so that the test does not fail.
            Thread.sleep(1000);
            Session session = ((HttpConnectionOverHTTP2) connection).getSession();
            ((HTTP2Session) session).getEndPoint().shutdownOutput();
            break;
        default:
            Assert.fail();
    }
    // Wait for the response to arrive before finishing the request.
    assertTrue(responseLatch.await(5, TimeUnit.SECONDS));
    contentProvider.close();
    assertTrue(errorLatch.await(5, TimeUnit.SECONDS));
    assertTrue(clientLatch.await(5, TimeUnit.SECONDS));
}

Example 4 with ReadListener

use of javax.servlet.ReadListener in project jetty.project by eclipse.

the class AsyncIOServletTest method testEmptyAsyncRead.

@Test
public void testEmptyAsyncRead() throws Exception {
    AtomicBoolean oda = new AtomicBoolean();
    CountDownLatch latch = new CountDownLatch(1);
    start(new HttpServlet() {

        @Override
        protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            assertScope();
            AsyncContext asyncContext = request.startAsync(request, response);
            response.setStatus(200);
            response.getOutputStream().close();
            request.getInputStream().setReadListener(new ReadListener() {

                @Override
                public void onDataAvailable() throws IOException {
                    assertScope();
                    oda.set(true);
                }

                @Override
                public void onAllDataRead() throws IOException {
                    assertScope();
                    asyncContext.complete();
                    latch.countDown();
                }

                @Override
                public void onError(Throwable t) {
                    assertScope();
                    t.printStackTrace();
                    asyncContext.complete();
                }
            });
        }
    });
    ContentResponse response = client.newRequest(newURI()).path(servletPath).header(HttpHeader.CONNECTION, "close").timeout(5, TimeUnit.SECONDS).send();
    assertThat(response.getStatus(), Matchers.equalTo(HttpStatus.OK_200));
    assertTrue(latch.await(5, TimeUnit.SECONDS));
    // onDataAvailable must not be called.
    Assert.assertFalse(oda.get());
}

Example 5 with ReadListener

use of javax.servlet.ReadListener in project jetty.project by eclipse.

the class ServerTimeoutsTest method testAsyncReadHttpIdleTimeoutOverridesIdleTimeout.

@Test
public void testAsyncReadHttpIdleTimeoutOverridesIdleTimeout() throws Exception {
    long httpIdleTimeout = 2500;
    long idleTimeout = 3 * httpIdleTimeout;
    httpConfig.setIdleTimeout(httpIdleTimeout);
    CountDownLatch handlerLatch = new CountDownLatch(1);
    start(new AbstractHandler() {

        @Override
        public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
            baseRequest.setHandled(true);
            AsyncContext asyncContext = request.startAsync();
            asyncContext.setTimeout(0);
            ServletInputStream input = request.getInputStream();
            input.setReadListener(new ReadListener() {

                @Override
                public void onDataAvailable() throws IOException {
                    Assert.assertEquals(0, input.read());
                    Assert.assertFalse(input.isReady());
                }

                @Override
                public void onAllDataRead() throws IOException {
                }

                @Override
                public void onError(Throwable failure) {
                    if (failure instanceof TimeoutException) {
                        response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR_500);
                        asyncContext.complete();
                        handlerLatch.countDown();
                    }
                }
            });
        }
    });
    setServerIdleTimeout(idleTimeout);
    DeferredContentProvider contentProvider = new DeferredContentProvider(ByteBuffer.allocate(1));
    CountDownLatch resultLatch = new CountDownLatch(1);
    client.POST(newURI()).content(contentProvider).send(result -> {
        if (result.getResponse().getStatus() == HttpStatus.INTERNAL_SERVER_ERROR_500)
            resultLatch.countDown();
    });
    // Async read should timeout.
    Assert.assertTrue(handlerLatch.await(2 * idleTimeout, TimeUnit.MILLISECONDS));
    // Complete the request.
    contentProvider.close();
    Assert.assertTrue(resultLatch.await(5, TimeUnit.SECONDS));
}