Example usage for org.apache.http.client ResponseHandler ResponseHandler

Introduction

In this page you can find the example usage for org.apache.http.client ResponseHandler ResponseHandler.

Prototype

ResponseHandler

Source Link

Usage

From source file:com.vsct.strowgr.monitoring.aggregator.nsq.NsqLookupClient.java

public Set<String> getTopics() throws UnavailableNsqException {
    try {// w w  w  .  j a  v  a2 s. co m
        LOGGER.info("Listing all nsq topics");
        HttpGet uri = new HttpGet("http://" + host + ":" + port + TOPICS_ENDPOINT);
        return client.execute(uri, new ResponseHandler<Set<String>>() {
            @Override
            public Set<String> handleResponse(HttpResponse httpResponse)
                    throws ClientProtocolException, IOException {
                int status = httpResponse.getStatusLine().getStatusCode();
                if (status >= 200 && status < 300) {
                    HttpEntity entity = httpResponse.getEntity();
                    NsqLookupResponse<NsqLookupTopics> nsqResponse = mapper.readValue(entity.getContent(),
                            new TypeReference<NsqLookupResponse<NsqLookupTopics>>() {
                            });
                    return nsqResponse.data.topics;
                } else {
                    throw new ClientProtocolException("Unexpected response status: " + status);
                }
            }
        });
    } catch (IOException e) {
        LOGGER.error("error while querying nsqlookup for list of topics");
        throw new UnavailableNsqException(e);
    }
}

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From source file:com.ny.apps.executor.TencentWeiboOAuth2.java

public String getCode(String APPKEY, String APPSECRET) throws Exception {
    String code = null;//ww  w . ja  v  a 2 s . c o m

    CloseableHttpClient client = HttpClients.createDefault();

    HttpGet httpGet = new HttpGet(prepareGetUrl());

    System.out.println(prepareGetUrl().toASCIIString());

    logger.info("executing request " + httpGet.getURI());

    ResponseHandler<String> responseHandler = new ResponseHandler<String>() {
        @Override
        public String handleResponse(HttpResponse response) throws ClientProtocolException, IOException {
            int statusCode = response.getStatusLine().getStatusCode();
            if (statusCode >= 200 && statusCode < 300) {
                HttpEntity entity = response.getEntity();
                return entity == null ? null : EntityUtils.toString(entity);
            } else {
                throw new ClientProtocolException("Unexpected response status: " + statusCode);
            }
        }
    };

    try {
        String responseBody = client.execute(httpGet, responseHandler);
        System.out.println("----------------------------------------");
        System.out.println(responseBody);
        System.out.println("----------------------------------------");
    } finally {
        client.close();
    }

    return code;
}

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From source file:eu.seaclouds.platform.dashboard.http.HttpRequestBuilder.java

public HttpRequestBuilder() {
    this.scheme = DEFAULT_SCHEME;
    this.responseHandler = new ResponseHandler<String>() {
        public String handleResponse(final HttpResponse response) throws IOException {
            int status = response.getStatusLine().getStatusCode();
            if (status >= 200 && status < 300) {
                HttpEntity entity = response.getEntity();
                return entity != null ? EntityUtils.toString(entity) : null;
            } else {
                throw new ClientProtocolException("Unexpected response status: " + status);
            }/*  w w w .  jav  a 2  s .  c om*/
        }

    };
}

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From source file:com.netflix.http4.NFHttpClientTest.java

@Test
public void testNFHttpClient() throws Exception {
    NFHttpClient client = NFHttpClientFactory.getNFHttpClient("www.google.com", 80);
    ThreadSafeClientConnManager cm = (ThreadSafeClientConnManager) client.getConnectionManager();
    cm.setDefaultMaxPerRoute(10);// w  w w  .  j a v a  2s.  c  o m
    HttpGet get = new HttpGet("www.google.com");
    ResponseHandler<Integer> respHandler = new ResponseHandler<Integer>() {
        public Integer handleResponse(HttpResponse response) throws ClientProtocolException, IOException {
            HttpEntity entity = response.getEntity();
            String contentStr = EntityUtils.toString(entity);
            return contentStr.length();
        }
    };
    long contentLen = client.execute(get, respHandler);
    assertTrue(contentLen > 0);
}

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From source file:es.uned.dia.jcsombria.softwarelinks.transport.HttpTransport.java

public Object send(String request) throws Exception {
    Object response = null;//from  w  w  w  .  ja va  2 s.co m
    CloseableHttpClient httpclient = HttpClients.createDefault();
    try {
        HttpPost httppost = new HttpPost(serverURL.toString());
        httppost.setEntity(new StringEntity(request));
        // Create a custom response handler
        ResponseHandler<String> responseHandler = new ResponseHandler<String>() {
            public String handleResponse(final HttpResponse response)
                    throws ClientProtocolException, IOException {
                int status = response.getStatusLine().getStatusCode();
                if (status >= 200 && status < 300) {
                    HttpEntity entity = response.getEntity();
                    return entity != null ? EntityUtils.toString(entity) : null;
                } else {
                    throw new ClientProtocolException("Unexpected response status: " + status);
                }
            }
        };
        String responseBody = httpclient.execute(httppost, responseHandler);
        response = responseBody;
    } finally {
        httpclient.close();
    }
    return response;
}

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From source file:eu.esdihumboldt.hale.io.codelist.InspireCodeListAdvisor.java

@Override
public void copyResource(LocatableInputSupplier<? extends InputStream> resource, final Path target,
        IContentType resourceType, boolean includeRemote, IOReporter reporter) throws IOException {

    URI uri = resource.getLocation();
    String uriScheme = uri.getScheme();
    if (uriScheme.equals("http")) {
        // Get the response for the given uri
        Response response = INSPIRECodeListReader.getResponse(uri);

        // Handle the fluent response
        response.handleResponse(new ResponseHandler<Boolean>() {

            @Override/*from  www  . j ava  2s .  c  o m*/
            public Boolean handleResponse(HttpResponse response) throws ClientProtocolException, IOException {
                StatusLine status = response.getStatusLine();
                HttpEntity entity = response.getEntity();

                if (status.getStatusCode() >= 300) {
                    throw new HttpResponseException(status.getStatusCode(), status.getReasonPhrase());
                }
                if (entity == null) {
                    throw new ClientProtocolException();
                }
                // Copy the resource file to the target path
                Files.copy(entity.getContent(), target);
                return true;
            }
        });
    } else {
        super.copyResource(resource, target, resourceType, includeRemote, reporter);
    }
}

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From source file:io.soabase.example.hello.HelloResourceApache.java

@GET
public String getHello(@Context HttpHeaders headers) throws Exception {
    String result = "Service Name: " + info.getServiceName() + "\nInstance Name: " + info.getInstanceName()
            + "\nRequest Id: " + SoaRequestId.get(headers) + "\n";

    URI uri = new URIBuilder().setHost(ClientUtils.serviceNameToHost("goodbye")).setPath("/goodbye").build();
    HttpGet get = new HttpGet(uri);
    ResponseHandler<String> responseHandler = new ResponseHandler<String>() {
        @Override//from   www.  j a  v  a  2 s. co  m
        public String handleResponse(HttpResponse response) throws IOException {
            return CharStreams.toString(new InputStreamReader(response.getEntity().getContent()));
        }
    };
    String value = client.execute(new HttpHost(uri.getHost(), uri.getPort(), uri.getScheme()), get,
            responseHandler);
    return result + "\nGoodbye app says: \n\t" + value;
}

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From source file:tv.icntv.common.HttpClientUtil.java

/**
 * Get content by url as string// w  w  w.ja va2s .c  o  m
 *
 * @param url original url
 * @return page content
 * @throws java.io.IOException
 */
public static String getContent(String url) throws IOException {
    // construct request
    HttpGet request = new HttpGet(url);
    request.setHeader(new BasicHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8"));

    request.setConfig(RequestConfig.custom().setConnectionRequestTimeout(CONNECTION_REQUEST_TIMEOUT)
            .setSocketTimeout(SOCKET_TIMEOUT).build());
    // construct response handler
    ResponseHandler<String> handler = new ResponseHandler<String>() {
        @Override
        public String handleResponse(final HttpResponse response) throws IOException {
            StatusLine status = response.getStatusLine();
            // status
            if (status.getStatusCode() != HttpStatus.SC_OK) {
                throw new HttpResponseException(status.getStatusCode(), status.getReasonPhrase());
            }
            // get encoding in header
            String encoding = getPageEncoding(response);
            boolean encodingFounded = true;
            if (Strings.isNullOrEmpty(encoding)) {
                encodingFounded = false;
                encoding = "iso-8859-1";
            }
            // get content and find real encoding
            HttpEntity entity = response.getEntity();
            if (entity == null) {
                return null;
            }
            // get content
            byte[] contentBytes = EntityUtils.toByteArray(entity);
            if (contentBytes == null) {
                return null;
            }
            // found encoding
            if (encodingFounded) {
                return new String(contentBytes, encoding);
            }
            // attempt to discover encoding
            String rawContent = new String(contentBytes, DEFAULT_ENCODING);
            Matcher matcher = PATTERN_HTML_CHARSET.matcher(rawContent);
            if (matcher.find()) {
                String realEncoding = matcher.group(1);
                if (!encoding.equalsIgnoreCase(realEncoding)) {
                    // bad luck :(
                    return new String(rawContent.getBytes(encoding), realEncoding);
                }
            }
            // not found right encoding :)
            return rawContent;
        }
    };
    // execute
    CloseableHttpClient client = HttpClientHolder.getClient();
    return client.execute(request, handler);
}

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From source file:eu.eubrazilcc.lvl.core.TrustedHttpsClientTest.java

@Test
public void test() {
    System.out.println("TrustedHttpsClientTest.test()");
    try {/*from  w ww .  j  a v  a2 s.c o  m*/
        try (final TrustedHttpsClient httpClient = new TrustedHttpsClient()) {
            final ResponseHandler<String> responseHandler = new ResponseHandler<String>() {
                public String handleResponse(final HttpResponse response)
                        throws ClientProtocolException, IOException {
                    assertThat("HTTP response is not null", response, notNullValue());
                    assertThat("Status line is not null", response.getStatusLine(), notNullValue());
                    assertThat("Status coincides with expected", response.getStatusLine().getStatusCode(),
                            allOf(greaterThanOrEqualTo(200), lessThan(300)));
                    final HttpEntity entity = response.getEntity();
                    assertThat("Entity is not null", entity, notNullValue());
                    return entity != null ? EntityUtils.toString(entity) : null;
                }
            };
            final String payload = httpClient.executeGet("https://www.google.es", null, responseHandler);
            assertThat("Content is not null", payload, notNullValue());
            assertThat("Content not is empty", isNotBlank(payload));
            /* uncomment for additional output
            System.out.println(" >> Server response: " + payload); */
        }
    } catch (Exception e) {
        e.printStackTrace(System.err);
        fail("TrustedHttpsClientTest.test() failed: " + e.getMessage());
    } finally {
        System.out.println("TrustedHttpsClientTest.test() has finished");
    }
}

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From source file:nl.surfnet.coin.selenium.CorsHeaderTestSelenium.java

@Test
public void preflight() throws Exception {
    HttpClient client = new DefaultHttpClient();
    HttpUriRequest req = new HttpOptions(getApiBaseUrl() + OS_URL);
    req.setHeader("Origin", "localhost");
    client.execute(req, new ResponseHandler<Object>() {
        @Override//  ww w .ja v  a2s .c  o m
        public Object handleResponse(HttpResponse response) throws ClientProtocolException, IOException {
            assertThat("response header Access-Control-Allow-Methods should contain 'GET'",
                    response.getFirstHeader("Access-Control-Allow-Methods").getValue(), containsString("GET"));
            assertThat("No content should be served on a preflight request",
                    response.getEntity().getContentLength(), equalTo(0L));
            return null;
        }
    });
}

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