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:org.openmrs.contrib.discohub.HttpUtils.java

public static Map<String, Object> getData(String url, Header[] headers) throws IOException {
    final Map<String, Object> responseMap = new LinkedHashMap<>();
    CloseableHttpClient httpclient = HttpClients.createDefault();
    HttpGet httpget = new HttpGet(url);
    httpget.setHeaders(headers);//from ww w  . j  a  v  a2  s  .c  om

    // Create a custom response handler
    ResponseHandler<String> responseHandler = new ResponseHandler<String>() {
        @Override
        public String handleResponse(final HttpResponse response) throws ClientProtocolException, IOException {
            int status = response.getStatusLine().getStatusCode();
            if (status >= 200 && status < 300) {
                HttpEntity entity = response.getEntity();
                responseMap.put("headers", response.getAllHeaders());
                //System.out.println("Ratelimit attempts left: " + response.getHeaders("X-RateLimit-Remaining")[0]);
                //System.out.println("Etag = " + response.getHeaders("ETag")[0]);
                return entity != null ? EntityUtils.toString(entity) : null;
            } else if (status == 304) {
                //System.out.println("GOT 304!!!");
                return null;
            } else {
                throw new ClientProtocolException("Unexpected response status: " + status);
            }
        }

    };
    String responseBody = httpclient.execute(httpget, responseHandler);
    responseMap.put("content", responseBody);
    return responseMap;
}

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From source file:com.javaquery.aws.elasticsearch.GetExample.java

/**
 * Perform get request./*from   w w  w  .  j a  v a 2  s .c  om*/
 * @param httpGet
 */
public static void httpGetRequest(HttpGet httpGet) {
    /* Create object of CloseableHttpClient */
    CloseableHttpClient httpClient = HttpClients.createDefault();

    /* Response handler for after request execution */
    ResponseHandler<String> responseHandler = new ResponseHandler<String>() {

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

    try {
        /* Execute URL and attach after execution response handler */
        String strResponse = httpClient.execute(httpGet, responseHandler);
        /* Print the response */
        System.out.println("Response: " + strResponse);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:org.mobile.mpos.util.HttpClientHelper.java

/**
 * get request//from  w ww . ja  va2s  . c  o m
 * @param uri
 * @return
 */
public static String get(String uri) {
    CloseableHttpClient httpClient = HttpClients.createDefault();
    try {
        HttpGet httpget = new HttpGet(uri);
        log.info("Executing request " + httpget.getRequestLine());
        // 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(httpget, responseHandler);
        log.info(" response " + responseBody);
        return responseBody;
    } catch (ClientProtocolException e) {
        log.error("ClientProtocolException " + e.getMessage());
    } catch (IOException e) {
        log.error("IOException " + e.getMessage());
    } finally {
        close(httpClient);
    }
    return null;
}

---

From source file:com.javaquery.aws.elasticsearch.DeleteExample.java

/**
 * Perform delete request./* ww  w  .  java2  s  .  c o  m*/
 * @param httpDelete
 */
public static void httpDeleteRequest(HttpDelete httpDelete) {
    /* Create object of CloseableHttpClient */
    CloseableHttpClient httpClient = HttpClients.createDefault();

    /* Response handler for after request execution */
    ResponseHandler<String> responseHandler = new ResponseHandler<String>() {

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

    try {
        /* Execute URL and attach after execution response handler */
        String strResponse = httpClient.execute(httpDelete, responseHandler);
        /* Print the response */
        System.out.println("Response: " + strResponse);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:com.uber.stream.kafka.mirrormaker.common.utils.HttpClientUtils.java

public static ResponseHandler<String> createResponseBodyExtractor() {
    return new ResponseHandler<String>() {
        @Override//ww  w . ja va2 s.  c o  m
        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 while getting /topics : " + status);
            }
        }
    };
}

---

From source file:com.mycompany.rakornas.getDataURL.java

String getData(String url) throws IOException {
    try (CloseableHttpClient httpclient = HttpClients.createDefault()) {
        HttpGet httpget = new HttpGet(url);
        System.out.println("Executing request " + httpget.getRequestLine());

        ResponseHandler<String> responseHandler;
        responseHandler = new ResponseHandler<String>() {

            @Override/*from  w w  w.  ja  v  a2  s  .c  om*/
            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 responseURL = httpclient.execute(httpget, responseHandler);
        return responseURL;
    }
}

---

From source file:org.winardiaris.uangku.getDataURL.java

String getData(String url) throws IOException {
    CloseableHttpClient httpclient = HttpClients.createDefault();
    try {// w w  w .  j ava  2 s .  co m
        HttpGet httpget = new HttpGet(url);
        System.out.println("Executing request " + httpget.getRequestLine());

        ResponseHandler<String> responseHandler;
        responseHandler = new ResponseHandler<String>() {

            @Override
            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 responseURL = httpclient.execute(httpget, responseHandler);
        return responseURL;
    } finally {
        httpclient.close();
    }
}

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From source file:com.javaquery.aws.elasticsearch.AddUpdateExample.java

/**
 * Perform post request.//w ww .  j a va  2  s  .  c o m
 * @param httpPost 
 */
public static void httpPostRequest(HttpPost httpPost) {
    /* Create object of CloseableHttpClient */
    CloseableHttpClient httpClient = HttpClients.createDefault();

    /* Response handler for after request execution */
    ResponseHandler<String> responseHandler = new ResponseHandler<String>() {

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

    try {
        /* Execute URL and attach after execution response handler */
        String strResponse = httpClient.execute(httpPost, responseHandler);
        /* Print the response */
        System.out.println("Response: " + strResponse);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:com.johnson.grab.browser.HttpClientUtil.java

/**
 * Get content by url as string//from  ww  w.j  a  va 2 s. c  o  m
 * @param url
 *      original url
 * @return
 *      page content
 * @throws java.io.IOException
 */
public static String getContent(String url) throws CrawlException, IOException {
    // construct request
    HttpGet request = new HttpGet(url);
    request.setConfig(RequestConfig.custom().setConnectionRequestTimeout(CONNECTION_REQUEST_TIMEOUT)
            .setSocketTimeout(SOCKECT_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 (StringUtil.isEmpty(encoding)) {
                encodingFounded = false;
                encoding = UniversalConstants.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, UniversalConstants.Encoding.DEFAULT);
            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:com.kingmed.dp.ndp.NDPConnectionManager.java

@Override
public void connect() throws Exception {
    String signinUrl = ndpServe.getUrlSignin();
    CloseableHttpClient httpclient = HttpClients.createDefault();
    try {//from  ww  w .j  a  v a2 s . c o m
        HttpGet httpget = new HttpGet(signinUrl);
        String responseBody = httpclient.execute(httpget, new ResponseHandler<String>() {
            @Override
            public String handleResponse(HttpResponse hr) throws ClientProtocolException, IOException {
                int status = hr.getStatusLine().getStatusCode();
                if (status >= 200 && status < 300) {
                    HttpEntity entity = hr.getEntity();
                    return entity != null ? EntityUtils.toString(entity) : null;
                } else {
                    throw new ClientProtocolException("Unexpected response status: " + status);
                }
            }

        });
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        httpclient.close();
    }
}

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