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

Example 46 with ServletException

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

the class StatisticsHandlerTest method testTwoRequests.

@Test
public void testTwoRequests() throws Exception {
    final CyclicBarrier[] barrier = { new CyclicBarrier(3), new CyclicBarrier(3) };
    _latchHandler.reset(2);
    _statsHandler.setHandler(new AbstractHandler() {

        @Override
        public void handle(String path, Request request, HttpServletRequest httpRequest, HttpServletResponse httpResponse) throws IOException, ServletException {
            request.setHandled(true);
            try {
                barrier[0].await();
                barrier[1].await();
            } catch (Exception x) {
                Thread.currentThread().interrupt();
                throw (IOException) new IOException().initCause(x);
            }
        }
    });
    _server.start();
    String request = "GET / HTTP/1.1\r\n" + "Host: localhost\r\n" + "\r\n";
    _connector.executeRequest(request);
    _connector.executeRequest(request);
    barrier[0].await();
    assertEquals(2, _statistics.getConnections());
    assertEquals(2, _statsHandler.getRequests());
    assertEquals(2, _statsHandler.getRequestsActive());
    assertEquals(2, _statsHandler.getRequestsActiveMax());
    assertEquals(2, _statsHandler.getDispatched());
    assertEquals(2, _statsHandler.getDispatchedActive());
    assertEquals(2, _statsHandler.getDispatchedActiveMax());
    barrier[1].await();
    assertTrue(_latchHandler.await());
    assertEquals(2, _statsHandler.getRequests());
    assertEquals(0, _statsHandler.getRequestsActive());
    assertEquals(2, _statsHandler.getRequestsActiveMax());
    assertEquals(2, _statsHandler.getDispatched());
    assertEquals(0, _statsHandler.getDispatchedActive());
    assertEquals(2, _statsHandler.getDispatchedActiveMax());
    assertEquals(0, _statsHandler.getAsyncRequests());
    assertEquals(0, _statsHandler.getAsyncDispatches());
    assertEquals(0, _statsHandler.getExpires());
    assertEquals(2, _statsHandler.getResponses2xx());
}

Example 47 with ServletException

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

the class StatisticsHandlerTest method testSuspendComplete.

@Test
public void testSuspendComplete() throws Exception {
    final long dispatchTime = 10;
    final AtomicReference<AsyncContext> asyncHolder = new AtomicReference<>();
    final CyclicBarrier[] barrier = { new CyclicBarrier(2), new CyclicBarrier(2) };
    final CountDownLatch latch = new CountDownLatch(1);
    _statsHandler.setHandler(new AbstractHandler() {

        @Override
        public void handle(String path, Request request, HttpServletRequest httpRequest, HttpServletResponse httpResponse) throws IOException, ServletException {
            request.setHandled(true);
            try {
                barrier[0].await();
                Thread.sleep(dispatchTime);
                if (asyncHolder.get() == null) {
                    AsyncContext async = request.startAsync();
                    asyncHolder.set(async);
                }
            } catch (Exception x) {
                throw new ServletException(x);
            } finally {
                try {
                    barrier[1].await();
                } catch (Exception ignored) {
                }
            }
        }
    });
    _server.start();
    String request = "GET / HTTP/1.1\r\n" + "Host: localhost\r\n" + "\r\n";
    _connector.executeRequest(request);
    barrier[0].await();
    assertEquals(1, _statistics.getConnections());
    assertEquals(1, _statsHandler.getRequests());
    assertEquals(1, _statsHandler.getRequestsActive());
    assertEquals(1, _statsHandler.getDispatched());
    assertEquals(1, _statsHandler.getDispatchedActive());
    barrier[1].await();
    assertTrue(_latchHandler.await());
    assertNotNull(asyncHolder.get());
    assertEquals(1, _statsHandler.getRequests());
    assertEquals(1, _statsHandler.getRequestsActive());
    assertEquals(1, _statsHandler.getDispatched());
    assertEquals(0, _statsHandler.getDispatchedActive());
    asyncHolder.get().addListener(new AsyncListener() {

        @Override
        public void onTimeout(AsyncEvent event) throws IOException {
        }

        @Override
        public void onStartAsync(AsyncEvent event) throws IOException {
        }

        @Override
        public void onError(AsyncEvent event) throws IOException {
        }

        @Override
        public void onComplete(AsyncEvent event) throws IOException {
            try {
                latch.countDown();
            } catch (Exception ignored) {
            }
        }
    });
    long requestTime = 20;
    Thread.sleep(requestTime);
    asyncHolder.get().complete();
    latch.await();
    assertEquals(1, _statsHandler.getRequests());
    assertEquals(0, _statsHandler.getRequestsActive());
    assertEquals(1, _statsHandler.getDispatched());
    assertEquals(0, _statsHandler.getDispatchedActive());
    assertEquals(1, _statsHandler.getAsyncRequests());
    assertEquals(0, _statsHandler.getAsyncDispatches());
    assertEquals(0, _statsHandler.getExpires());
    assertEquals(1, _statsHandler.getResponses2xx());
    assertTrue(_statsHandler.getRequestTimeTotal() >= (dispatchTime + requestTime) * 3 / 4);
    assertEquals(_statsHandler.getRequestTimeTotal(), _statsHandler.getRequestTimeMax());
    assertEquals(_statsHandler.getRequestTimeTotal(), _statsHandler.getRequestTimeMean(), 0.01);
    assertTrue(_statsHandler.getDispatchedTimeTotal() >= dispatchTime * 3 / 4);
    assertTrue(_statsHandler.getDispatchedTimeTotal() < _statsHandler.getRequestTimeTotal());
    assertEquals(_statsHandler.getDispatchedTimeTotal(), _statsHandler.getDispatchedTimeMax());
    assertEquals(_statsHandler.getDispatchedTimeTotal(), _statsHandler.getDispatchedTimeMean(), 0.01);
}

Example 48 with ServletException

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

the class ThreadLimitHandlerTest method testLimit.

@Test
public void testLimit() throws Exception {
    ThreadLimitHandler handler = new ThreadLimitHandler("Forwarded");
    handler.setThreadLimit(4);
    AtomicInteger count = new AtomicInteger(0);
    AtomicInteger total = new AtomicInteger(0);
    CountDownLatch latch = new CountDownLatch(1);
    handler.setHandler(new AbstractHandler() {

        @Override
        public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
            baseRequest.setHandled(true);
            response.setStatus(HttpStatus.OK_200);
            if ("/other".equals(target))
                return;
            try {
                count.incrementAndGet();
                total.incrementAndGet();
                latch.await();
            } catch (InterruptedException e) {
                throw new ServletException(e);
            } finally {
                count.decrementAndGet();
            }
        }
    });
    _server.setHandler(handler);
    _server.start();
    Socket[] client = new Socket[10];
    for (int i = 0; i < client.length; i++) {
        client[i] = new Socket("127.0.0.1", _connector.getLocalPort());
        client[i].getOutputStream().write(("GET /" + i + " HTTP/1.0\r\nForwarded: for=1.2.3.4\r\n\r\n").getBytes());
        client[i].getOutputStream().flush();
    }
    long wait = System.nanoTime() + TimeUnit.SECONDS.toNanos(10);
    while (count.get() < 4 && System.nanoTime() < wait) Thread.sleep(1);
    assertThat(count.get(), is(4));
    // check that other requests are not blocked
    assertThat(_local.getResponse("GET /other HTTP/1.0\r\nForwarded: for=6.6.6.6\r\n\r\n"), Matchers.containsString(" 200 OK"));
    // let the other requests go
    latch.countDown();
    while (total.get() < 10 && System.nanoTime() < wait) Thread.sleep(10);
    assertThat(total.get(), is(10));
    while (count.get() > 0 && System.nanoTime() < wait) Thread.sleep(10);
    assertThat(count.get(), is(0));
}

Example 49 with ServletException

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

the class AsyncContextListenersTest method testListenerAddedFromListener.

@SuppressWarnings("Duplicates")
@Test
public void testListenerAddedFromListener() throws Exception {
    final AtomicReference<CountDownLatch> completes = new AtomicReference<>(new CountDownLatch(1));
    String path = "/path";
    prepare(path, new HttpServlet() {

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

                @Override
                public void onStartAsync(AsyncEvent event) throws IOException {
                    // This method should not be invoked because we add the
                    // listener *after* having called startAsync(), but we
                    // add a listener to be sure it's not called (it will
                    // screw up the completes count and test will fail).
                    event.getAsyncContext().addListener(this);
                }

                @Override
                public void onComplete(AsyncEvent event) throws IOException {
                    completes.get().countDown();
                }

                @Override
                public void onTimeout(AsyncEvent event) throws IOException {
                }

                @Override
                public void onError(AsyncEvent event) throws IOException {
                }
            });
            asyncContext.complete();
        }
    });
    try (Socket socket = new Socket("localhost", _connector.getLocalPort())) {
        OutputStream output = socket.getOutputStream();
        String request = "" + "GET " + path + " HTTP/1.1\r\n" + "Host: localhost\r\n" + "\r\n";
        output.write(request.getBytes(StandardCharsets.UTF_8));
        output.flush();
        HttpTester.Input input = HttpTester.from(socket.getInputStream());
        HttpTester.Response response = HttpTester.parseResponse(input);
        Assert.assertEquals(200, response.getStatus());
        completes.get().await(10, TimeUnit.SECONDS);
        // Send a second request
        completes.set(new CountDownLatch(1));
        output.write(request.getBytes(StandardCharsets.UTF_8));
        output.flush();
        response = HttpTester.parseResponse(input);
        Assert.assertEquals(200, response.getStatus());
        completes.get().await(10, TimeUnit.SECONDS);
    }
}

Example 50 with ServletException

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

the class SlowClientsTest method testSlowClientsWithSmallThreadPool.

@Test(timeout = 10000)
public void testSlowClientsWithSmallThreadPool() throws Exception {
    File keystore = MavenTestingUtils.getTestResourceFile("keystore");
    SslContextFactory sslContextFactory = new SslContextFactory();
    sslContextFactory.setKeyStorePath(keystore.getAbsolutePath());
    sslContextFactory.setKeyStorePassword("storepwd");
    sslContextFactory.setKeyManagerPassword("keypwd");
    int maxThreads = 6;
    int contentLength = 8 * 1024 * 1024;
    QueuedThreadPool serverThreads = new QueuedThreadPool(maxThreads);
    serverThreads.setDetailedDump(true);
    Server server = new Server(serverThreads);
    try {
        ServerConnector connector = new ServerConnector(server, 1, 1, sslContextFactory);
        connector.setPort(8888);
        server.addConnector(connector);
        server.setHandler(new AbstractHandler() {

            @Override
            public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
                baseRequest.setHandled(true);
                logger.info("SERVING {}", target);
                // Write some big content.
                response.getOutputStream().write(new byte[contentLength]);
                logger.info("SERVED {}", target);
            }
        });
        server.start();
        SSLContext sslContext = sslContextFactory.getSslContext();
        CompletableFuture[] futures = new CompletableFuture[2 * maxThreads];
        ExecutorService executor = Executors.newFixedThreadPool(futures.length);
        for (int i = 0; i < futures.length; i++) {
            int k = i;
            futures[i] = CompletableFuture.runAsync(() -> {
                try (SSLSocket socket = (SSLSocket) sslContext.getSocketFactory().createSocket("localhost", connector.getLocalPort())) {
                    socket.setSoTimeout(contentLength / 1024);
                    OutputStream output = socket.getOutputStream();
                    String target = "/" + k;
                    String request = "GET " + target + " HTTP/1.1\r\n" + "Host: localhost\r\n" + "Connection: close\r\n" + "\r\n";
                    output.write(request.getBytes(StandardCharsets.UTF_8));
                    output.flush();
                    while (serverThreads.getIdleThreads() > 0) Thread.sleep(50);
                    InputStream input = socket.getInputStream();
                    while (true) {
                        int read = input.read();
                        if (read < 0)
                            break;
                    }
                    logger.info("FINISHED {}", target);
                } catch (IOException x) {
                    throw new UncheckedIOException(x);
                } catch (InterruptedException x) {
                    throw new UncheckedIOException(new InterruptedIOException());
                }
            }, executor);
        }
        CompletableFuture.allOf(futures).join();
    } finally {
        server.stop();
    }
}