Examples of com.ning.http.client.AsyncHttpClient

com.ning.http.client.AsyncHttpClient
ing.com/").execute();}The code above will block until the response is fully received. To execute asynchronous HTTP request, you create an {@link AsyncHandler} or its abstract implementation, {@link com.ning.http.client.AsyncCompletionHandler}{@code AsyncHttpClient c = new AsyncHttpClient(); Future f = c.prepareGet("http://www.ning.com/").execute(new AsyncCompletionHandler() { @Override public Response onCompleted(Response response) throws IOException { // Do something return response; } @Override public void onThrowable(Throwable t) { } }); Response response = f.get(); // We are just interested to retrieve the status code. Future f = c.prepareGet("http://www.ning.com/").execute(new AsyncCompletionHandler() { @Override public Integer onCompleted(Response response) throws IOException { // Do something return response.getStatusCode(); } @Override public void onThrowable(Throwable t) { } }); Integer statusCode = f.get();}The {@link AsyncCompletionHandler#onCompleted(com.ning.http.client.Response)} will be invoked once the http response has been fully read, which includethe http headers and the response body. Note that the entire response will be buffered in memory. You can also have more control about the how the response is asynchronously processed by using a {@link AsyncHandler}{@code AsyncHttpClient c = new AsyncHttpClient(); Future f = c.prepareGet("http://www.ning.com/").execute(new AsyncHandler() { private StringBuilder builder = new StringBuilder(); @Override public STATE onStatusReceived(HttpResponseStatus s) throws Exception { // return STATE.CONTINUE or STATE.ABORT return STATE.CONTINUE}@Override public STATE onHeadersReceived(HttpResponseHeaders bodyPart) throws Exception { // return STATE.CONTINUE or STATE.ABORT return STATE.CONTINUE } @Override public STATE onBodyPartReceived(HttpResponseBodyPart bodyPart) throws Exception { builder.append(new String(bodyPart)); // return STATE.CONTINUE or STATE.ABORT return STATE.CONTINUE } @Override public String onCompleted() throws Exception { // Will be invoked once the response has been fully read or a ResponseComplete exception // has been thrown. return builder.toString(); } @Override public void onThrowable(Throwable t) { } }); String bodyResponse = f.get(); } From any {@link HttpContent} sub classes, you can asynchronously process the response status,headers and body and decide when tostop the processing the response by throwing a new {link ResponseComplete} at any moment. This class can also be used without the need of {@link AsyncHandler}
{@code AsyncHttpClient c = new AsyncHttpClient(); Future f = c.prepareGet(TARGET_URL).execute(); Response r = f.get();}Finally, you can configure the AsyncHttpClient using an {@link AsyncHttpClientConfig} instance
{@code AsyncHttpClient c = new AsyncHttpClient(new AsyncHttpClientConfig.Builder().setRequestTimeoutInMs(...).build()); Future f = c.prepareGet(TARGET_URL).execute(); Response r = f.get();}An instance of this class will cache every HTTP 1.1 connections and close them when the {@link AsyncHttpClientConfig#getIdleConnectionTimeoutInMs()}expires. This object can hold many persistent connections to different host.


        server = new Nettosphere.Builder().config(config).build();
        assertNotNull(server);
        server.start();


        AsyncHttpClient c = new AsyncHttpClient(new AsyncHttpClientConfig.Builder().setSSLEngineFactory(new SSLEngineFactory() {


            @Override
            public SSLEngine newSSLEngine() throws GeneralSecurityException {
                    SSLEngine sslEngine = sslContext.createSSLEngine();
                    sslEngine.setUseClientMode(true);
                    sslEngine.setEnabledCipherSuites(new String[]{"SSL_DH_anon_WITH_RC4_128_MD5"});
                    return sslEngine;
            }
        }).build());


        final AtomicReference<String> response = new AtomicReference<String>();
        WebSocket webSocket = c.prepareGet("wss://127.0.0.1:" + port).execute(new WebSocketUpgradeHandler.Builder().build()).get();
        assertNotNull(webSocket);
        webSocket.addWebSocketListener(new WebSocketTextListener() {
            @Override
            public void onMessage(String message) {
                response.set(message);

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        assertNotNull(server);
        server.start();


        final AtomicReference<HttpResponseHeaders> response = new AtomicReference<HttpResponseHeaders>();
        AsyncHttpClient c = new AsyncHttpClient();
        c.prepareGet(targetUrl + "/suspend").execute(new AsyncHandler<Response>() {


            final Response.ResponseBuilder b = new Response.ResponseBuilder();


            @Override
            public void onThrowable(Throwable t) {

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        assertNotNull(server);
        server.start();


        final AtomicReference<Response> response = new AtomicReference<Response>();
        AsyncHttpClient c = new AsyncHttpClient();
        c.prepareGet(targetUrl + "/suspend").setHeader(X_ATMOSPHERE_TRANSPORT, "streaming").execute(new AsyncHandler<Response>() {


            final Response.ResponseBuilder b = new Response.ResponseBuilder();


            @Override
            public void onThrowable(Throwable t) {
                l.countDown();
            }


            @Override
            public STATE onBodyPartReceived(HttpResponseBodyPart bodyPart) throws Exception {
                b.accumulate(bodyPart);
                return STATE.CONTINUE;
            }


            @Override
            public STATE onStatusReceived(HttpResponseStatus responseStatus) throws Exception {
                b.accumulate(responseStatus);
                return STATE.CONTINUE;
            }


            @Override
            public STATE onHeadersReceived(HttpResponseHeaders headers) throws Exception {
                b.accumulate(headers);
                return STATE.CONTINUE;
            }


            @Override
            public Response onCompleted() throws Exception {
                response.set(b.build());


                l.countDown();
                return null;
            }
        });


        suspendCD.await(5, TimeUnit.SECONDS);


        Response r = c.prepareGet(targetUrl + "/suspend").execute().get();
        assertEquals(r.getStatusCode(), 200);


        l.await(5, TimeUnit.SECONDS);


        assertEquals(response.get().getStatusCode(), 200);

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        assertNotNull(server);
        server.start();


        final AtomicReference<Response> response = new AtomicReference<Response>();
        AsyncHttpClient c = new AsyncHttpClient();
        c.prepareGet(targetUrl + "/suspend").setHeader(X_ATMOSPHERE_TRANSPORT, "streaming").execute(new AsyncHandler<Response>() {


            final Response.ResponseBuilder b = new Response.ResponseBuilder();


            @Override
            public void onThrowable(Throwable t) {
                l.countDown();
            }


            @Override
            public STATE onBodyPartReceived(HttpResponseBodyPart bodyPart) throws Exception {
                b.accumulate(bodyPart);
                return STATE.CONTINUE;
            }


            @Override
            public STATE onStatusReceived(HttpResponseStatus responseStatus) throws Exception {
                b.accumulate(responseStatus);
                return STATE.CONTINUE;
            }


            @Override
            public STATE onHeadersReceived(HttpResponseHeaders headers) throws Exception {
                b.accumulate(headers);
                return STATE.CONTINUE;
            }


            @Override
            public Response onCompleted() throws Exception {
                response.set(b.build());


                l.countDown();
                return null;
            }
        });


        suspendCD.await(5, TimeUnit.SECONDS);


        StringBuilder b = new StringBuilder();
        for (int i=0; i < 10000; i++) {
            b.append("======");
        }
        b.append("message");


        Response r = c.preparePost(targetUrl + "/suspend").setContentLength(b.toString().length()).setBody(b.toString()).execute().get();
        assertEquals(r.getStatusCode(), 200);


        l.await(5, TimeUnit.SECONDS);


        assertEquals(response.get().getStatusCode(), 200);

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        assertNotNull(server);
        server.start();


        final AtomicReference<Response> response = new AtomicReference<Response>();
        AsyncHttpClient c = new AsyncHttpClient();
        c.prepareGet(targetUrl + "/suspend").setHeader(X_ATMOSPHERE_TRANSPORT, "streaming").execute(new AsyncHandler<Response>() {


            final Response.ResponseBuilder b = new Response.ResponseBuilder();


            @Override
            public void onThrowable(Throwable t) {
                l.countDown();
            }


            @Override
            public STATE onBodyPartReceived(HttpResponseBodyPart bodyPart) throws Exception {
                b.accumulate(bodyPart);
                return STATE.CONTINUE;
            }


            @Override
            public STATE onStatusReceived(HttpResponseStatus responseStatus) throws Exception {
                b.accumulate(responseStatus);
                return STATE.CONTINUE;
            }


            @Override
            public STATE onHeadersReceived(HttpResponseHeaders headers) throws Exception {
                b.accumulate(headers);
                return STATE.CONTINUE;
            }


            @Override
            public Response onCompleted() throws Exception {
                response.set(b.build());


                l.countDown();
                return null;
            }
        });


        suspendCD.await(5, TimeUnit.SECONDS);


        StringBuilder b = new StringBuilder();
        for (int i=0; i < 10000; i++) {
            b.append("======");
        }
        b.append("message");


        Response r = c.preparePost(targetUrl + "/suspend").setContentLength(b.toString().length()).setBody(b.toString()).execute().get();
        assertEquals(r.getStatusCode(), 200);


        l.await(5, TimeUnit.SECONDS);


        assertEquals(response.get().getStatusCode(), 200);

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    @Test(timeOut = 20000, enabled = true)
    public void testSuspendTimeout() {
        logger.info("{}: running test: testSuspendTimeout", getClass().getSimpleName());


        AsyncHttpClient c = new AsyncHttpClient();
        try {
            long t1 = System.currentTimeMillis();
            Response r = c.prepareGet(urlTarget).setHeader(X_ATMOSPHERE_TRANSPORT, LONG_POLLING_TRANSPORT).execute().get(20, TimeUnit.SECONDS);
            assertNotNull(r);
            assertEquals(r.getStatusCode(), 200);
            String resume = r.getResponseBody();
            assertEquals(resume.trim(), "resume");
            long current = System.currentTimeMillis() - t1;
            assertTrue(current > 5000 && current < 15000);
        } catch (Exception e) {
            logger.error("test failed", e);
            fail(e.getMessage());
        }


        c.close();
    }

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    @Test(timeOut = 20000, enabled = false)
    public void testProgrammaticResume() {
        logger.info("{}: running test: testProgrammaticResume", getClass().getSimpleName());


        AsyncHttpClient c = new AsyncHttpClient();
        final AtomicReference<String> location = new AtomicReference<String>();
        final AtomicReference<String> response = new AtomicReference<String>("");
        final CountDownLatch latch = new CountDownLatch(1);
        final CountDownLatch locationLatch = new CountDownLatch(1);
        try {
            c.prepareGet(urlTarget + "/suspendAndResume").execute(new AsyncHandler<String>() {


                public void onThrowable(Throwable throwable) {
                    fail("onThrowable", throwable);
                }


                public STATE onBodyPartReceived(HttpResponseBodyPart bp) throws Exception {


                    logger.info("body part byte string: {}", new String(bp.getBodyPartBytes()));
                    response.set(response.get() + new String(bp.getBodyPartBytes()));
                    locationLatch.countDown();
                    return STATE.CONTINUE;
                }


                public STATE onStatusReceived(HttpResponseStatus hs) throws Exception {
                    return STATE.CONTINUE;
                }


                public STATE onHeadersReceived(HttpResponseHeaders rh) throws Exception {
                    location.set(rh.getHeaders().getFirstValue("Location"));
                    return STATE.CONTINUE;
                }


                public String onCompleted() throws Exception {
                    latch.countDown();
                    return "";
                }
            });


            locationLatch.await(5, TimeUnit.SECONDS);


            Response r = c.prepareGet(location.get()).execute().get(10, TimeUnit.SECONDS);
            latch.await(20, TimeUnit.SECONDS);
            assertNotNull(r);
            assertEquals(r.getStatusCode(), 200);
            assertEquals(response.get(), "suspendresume");


        } catch (Exception e) {
            logger.error("test failed", e);
            fail(e.getMessage());
        }


        c.close();
    }

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    @Test(timeOut = 20000, enabled = true)
    public void testResumeOnBroadcastUsingBroadcasterFactory() {
        logger.info("{}: running test: testResumeOnBroadcast", getClass().getSimpleName());


        AsyncHttpClient c = new AsyncHttpClient();
        long t1 = System.currentTimeMillis();


        try {
            Response r = c.prepareGet(urlTarget + "/subscribeAndUsingExternalThread").setHeader(X_ATMOSPHERE_TRANSPORT, LONG_POLLING_TRANSPORT).execute().get();
            assertNotNull(r);
            assertEquals(r.getStatusCode(), 200);
            long current = System.currentTimeMillis() - t1;
            assertTrue(current > 5000 && current < 10000);
        } catch (Exception e) {
            logger.error("test failed", e);
            fail(e.getMessage());
        }


        c.close();
    }

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    @Test(timeOut = 20000, enabled = true)
    public void testDelayBroadcast() {
        logger.info("{}: running test: testDelayBroadcast", getClass().getSimpleName());


        final CountDownLatch latch = new CountDownLatch(1);
        AsyncHttpClient c = new AsyncHttpClient();
        try {
            final AtomicReference<Response> response = new AtomicReference<Response>();
            c.prepareGet(urlTarget + "/forever").setHeader(X_ATMOSPHERE_TRANSPORT, "streaming").execute(new AsyncCompletionHandler<Response>() {


                @Override
                public Response onCompleted(Response r) throws Exception {
                    try {
                        response.set(r);
                        return r;
                    } finally {
                        latch.countDown();
                    }
                }
            });


            // Let Atmosphere suspend the connections.
            Thread.sleep(2500);
            c.preparePost(urlTarget + "/delay").addParameter("message", "foo").execute().get();
            c.preparePost(urlTarget + "/publishAndResume").addParameter("message", "bar").execute().get();


            try {
                latch.await(20, TimeUnit.SECONDS);
            } catch (InterruptedException e) {
                fail(e.getMessage());
            }


            Response r = response.get();


            assertNotNull(r);
            assertEquals(r.getResponseBody().trim(), "foo\nbar");
            assertEquals(r.getStatusCode(), 200);
        } catch (Exception e) {
            logger.error("test failed", e);
            fail(e.getMessage());
        }


        c.close();
    }

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        logger.info("{}: running test: testDelayNextBroadcast", getClass().getSimpleName());


        final CountDownLatch latch = new CountDownLatch(1);
        long t1 = System.currentTimeMillis();


        AsyncHttpClient c = new AsyncHttpClient();
        try {
            final AtomicReference<Response> response = new AtomicReference<Response>();
            c.prepareGet(urlTarget + "/forever").setHeader(X_ATMOSPHERE_TRANSPORT, "streaming").execute(new AsyncCompletionHandler<Response>() {


                @Override
                public Response onCompleted(Response r) throws Exception {
                    try {
                        response.set(r);
                        return r;
                    } finally {
                        latch.countDown();
                    }
                }
            });


            // Let Atmosphere suspend the connections.
            Thread.sleep(2500);
            c.preparePost(urlTarget + "/delay").addParameter("message", "foo").execute().get();
            c.preparePost(urlTarget + "/delayAndResume").addParameter("message", "bar").execute().get();


            try {
                latch.await(20, TimeUnit.SECONDS);
            } catch (InterruptedException e) {
                fail(e.getMessage());
            }


            Response r = response.get();


            assertNotNull(r);
            assertEquals(r.getResponseBody().trim(), "foo\nbar");
            assertEquals(r.getStatusCode(), 200);
            long current = System.currentTimeMillis() - t1;
            assertTrue(current > 5000 && current < 10000);
        } catch (Exception e) {
            logger.error("test failed", e);
            fail(e.getMessage());
        }


        c.close();
    }

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