Examples of org.asynchttpclient.AsyncHttpClient

org.asynchttpclient.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 AsyncCompletionHandler}

 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();

You can also have more control about the how the response is asynchronously processed by using a {@link AsyncHandler}

 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();

This class can also be used without the need of {@link AsyncHandler}

 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

 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#getReadTimeout()}expires. This object can hold many persistent connections to different host.

        }
    }


    @Test(groups = { "default_provider", "async" })
    public void bodyAsByteTest() throws Exception {
        final AsyncHttpClient client = getAsyncHttpClient(null);
        try {
            Response response = client.prepareGet(getTargetUrl()).execute().get();
            assertEquals(response.getStatusCode(), 200);
            assertEquals(response.getResponseBodyAsBytes(), new byte[] {});
        } finally {
            client.close();
        }
    }

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        }
    }


    @Test(groups = { "default_provider", "async" })
    public void mirrorByteTest() throws Exception {
        final AsyncHttpClient client = getAsyncHttpClient(null);
        try {
            Response response = client.preparePost(getTargetUrl()).setBody("MIRROR").execute().get();
            assertEquals(response.getStatusCode(), 200);
            assertEquals(new String(response.getResponseBodyAsBytes(), UTF_8), "MIRROR");
        } finally {
            client.close();
        }
    }

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  protected abstract AsyncHttpProviderConfig<?, ?> getProviderConfig();


    @Test(groups = { "standalone", "default_provider", "async" })
    public void asyncProviderEncodingTest() throws Exception {
        AsyncHttpClient client = getAsyncHttpClient(null);
        try {
            Request request = new RequestBuilder("GET").setUrl(getTargetUrl() + "?q=+%20x").build();
            assertEquals(request.getUrl(), getTargetUrl() + "?q=%20%20x");


            String url = client.executeRequest(request, new AsyncCompletionHandler<String>() {
                @Override
                public String onCompleted(Response response) throws Exception {
                    return response.getUri().toString();
                }


                @Override
                public void onThrowable(Throwable t) {
                    t.printStackTrace();
                    fail("Unexpected exception: " + t.getMessage(), t);
                }


            }).get();
            assertEquals(url, getTargetUrl() + "?q=%20%20x");
        } finally {
            client.close();
        }
    }

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        }
    }


    @Test(groups = { "standalone", "default_provider", "async" })
    public void asyncProviderEncodingTest2() throws Exception {
        AsyncHttpClient client = getAsyncHttpClient(null);
        try {
            Request request = new RequestBuilder("GET").setUrl(getTargetUrl() + "").addQueryParam("q", "a b").build();


            String url = client.executeRequest(request, new AsyncCompletionHandler<String>() {
                @Override
                public String onCompleted(Response response) throws Exception {
                    return response.getUri().toString();
                }


                @Override
                public void onThrowable(Throwable t) {
                    t.printStackTrace();
                    fail("Unexpected exception: " + t.getMessage(), t);
                }


            }).get();
            assertEquals(url, getTargetUrl() + "?q=a%20b");
        } finally {
            client.close();
        }
    }

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        }
    }


    @Test(groups = { "standalone", "default_provider", "async" })
    public void emptyRequestURI() throws Exception {
        AsyncHttpClient client = getAsyncHttpClient(null);
        try {
            Request request = new RequestBuilder("GET").setUrl(getTargetUrl()).build();


            String url = client.executeRequest(request, new AsyncCompletionHandler<String>() {
                @Override
                public String onCompleted(Response response) throws Exception {
                    return response.getUri().toString();
                }


                @Override
                public void onThrowable(Throwable t) {
                    t.printStackTrace();
                    fail("Unexpected exception: " + t.getMessage(), t);
                }


            }).get();
            assertEquals(url, getTargetUrl());
        } finally {
            client.close();
        }
    }

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        }
    }


    @Test(groups = { "standalone", "default_provider", "async" })
    public void asyncProviderContentLenghtGETTest() throws Exception {
        AsyncHttpClient client = getAsyncHttpClient(null);
        final HttpURLConnection connection = (HttpURLConnection) new URL(getTargetUrl()).openConnection();
        connection.connect();
        final int ct = connection.getContentLength();
        connection.disconnect();
        try {
            final CountDownLatch l = new CountDownLatch(1);


            Request request = new RequestBuilder("GET").setUrl(getTargetUrl()).build();
            client.executeRequest(request, new AsyncCompletionHandlerAdapter() {


                @Override
                public Response onCompleted(Response response) throws Exception {
                    try {
                        assertEquals(response.getStatusCode(), 200);
                        int contentLenght = -1;
                        if (response.getHeader("content-length") != null) {
                            contentLenght = Integer.valueOf(response.getHeader("content-length"));
                        }
                        assertEquals(contentLenght, ct);
                    } finally {
                        l.countDown();
                    }
                    return response;
                }


                @Override
                public void onThrowable(Throwable t) {
                    try {
                        fail("Unexpected exception", t);
                    } finally {
                        l.countDown();
                    }
                }


            }).get();


            if (!l.await(TIMEOUT, TimeUnit.SECONDS)) {
                fail("Timeout out");
            }
        } finally {
            client.close();
        }
    }

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        }
    }


    @Test(groups = { "standalone", "default_provider", "async" })
    public void asyncContentTypeGETTest() throws Exception {
        AsyncHttpClient client = getAsyncHttpClient(null);
        try {
            final CountDownLatch l = new CountDownLatch(1);
            Request request = new RequestBuilder("GET").setUrl(getTargetUrl()).build();
            client.executeRequest(request, new AsyncCompletionHandlerAdapter() {


                @Override
                public Response onCompleted(Response response) throws Exception {
                    try {
                        assertEquals(response.getStatusCode(), 200);
                        assertEquals(response.getContentType(), TEXT_HTML_CONTENT_TYPE_WITH_UTF_8_CHARSET);
                    } finally {
                        l.countDown();
                    }
                    return response;
                }
            }).get();
            if (!l.await(TIMEOUT, TimeUnit.SECONDS)) {
                fail("Timeout out");
            }
        } finally {
            client.close();
        }
    }

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        }
    }


    @Test(groups = { "standalone", "default_provider", "async" })
    public void asyncHeaderGETTest() throws Exception {
        AsyncHttpClient client = getAsyncHttpClient(null);
        try {
            final CountDownLatch l = new CountDownLatch(1);
            Request request = new RequestBuilder("GET").setUrl(getTargetUrl()).build();
            client.executeRequest(request, new AsyncCompletionHandlerAdapter() {


                @Override
                public Response onCompleted(Response response) throws Exception {
                    try {
                        assertEquals(response.getStatusCode(), 200);
                        assertEquals(response.getContentType(), TEXT_HTML_CONTENT_TYPE_WITH_UTF_8_CHARSET);
                    } finally {
                        l.countDown();
                    }
                    return response;
                }
            }).get();


            if (!l.await(TIMEOUT, TimeUnit.SECONDS)) {
                fail("Timeout out");
            }
        } finally {
            client.close();
        }
    }

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        }
    }


    @Test(groups = { "standalone", "default_provider", "async" })
    public void asyncHeaderPOSTTest() throws Exception {
        AsyncHttpClient client = getAsyncHttpClient(null);
        try {
            final CountDownLatch l = new CountDownLatch(1);
            FluentCaseInsensitiveStringsMap h = new FluentCaseInsensitiveStringsMap();
            h.add("Test1", "Test1");
            h.add("Test2", "Test2");
            h.add("Test3", "Test3");
            h.add("Test4", "Test4");
            h.add("Test5", "Test5");
            Request request = new RequestBuilder("GET").setUrl(getTargetUrl()).setHeaders(h).build();


            client.executeRequest(request, new AsyncCompletionHandlerAdapter() {


                @Override
                public Response onCompleted(Response response) throws Exception {
                    try {
                        assertEquals(response.getStatusCode(), 200);
                        for (int i = 1; i < 5; i++) {
                            assertEquals(response.getHeader("X-Test" + i), "Test" + i);
                        }
                    } finally {
                        l.countDown();
                    }
                    return response;
                }
            }).get();


            if (!l.await(TIMEOUT, TimeUnit.SECONDS)) {
                fail("Timeout out");
            }
        } finally {
            client.close();
        }
    }

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        }
    }


    @Test(groups = { "standalone", "default_provider", "async" })
    public void asyncParamPOSTTest() throws Exception {
        AsyncHttpClient client = getAsyncHttpClient(null);
        try {
            final CountDownLatch l = new CountDownLatch(1);
            FluentCaseInsensitiveStringsMap h = new FluentCaseInsensitiveStringsMap();
            h.add("Content-Type", "application/x-www-form-urlencoded");


            Map<String, List<String>> m = new HashMap<String, List<String>>();
            for (int i = 0; i < 5; i++) {
                m.put("param_" + i, Arrays.asList("value_" + i));
            }
            Request request = new RequestBuilder("POST").setUrl(getTargetUrl()).setHeaders(h).setFormParams(m).build();
            client.executeRequest(request, new AsyncCompletionHandlerAdapter() {


                @Override
                public Response onCompleted(Response response) throws Exception {
                    try {
                        assertEquals(response.getStatusCode(), 200);
                        for (int i = 1; i < 5; i++) {
                            assertEquals(response.getHeader("X-param_" + i), "value_" + i);
                        }
                    } finally {
                        l.countDown();
                    }
                    return response;
                }
            }).get();


            if (!l.await(TIMEOUT, TimeUnit.SECONDS)) {
                fail("Timeout out");
            }
        } finally {
            client.close();
        }
    }

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Related Classes of org.asynchttpclient.AsyncHttpClient

org.asynchttpclient.async.AsyncProvidersBasicTest

org.asynchttpclient.async.AsyncStreamHandlerTest

org.asynchttpclient.async.AsyncStreamLifecycleTest

org.asynchttpclient.async.AuthTimeoutTest

org.asynchttpclient.async.BasicAuthTest

org.asynchttpclient.async.BasicHttpsTest

org.asynchttpclient.async.BodyChunkTest

org.asynchttpclient.async.BodyDeferringAsyncHandlerTest

org.asynchttpclient.async.ByteBufferCapacityTest

org.asynchttpclient.async.ChunkingTest

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