Example usage for org.apache.http.client HttpClient execute

Introduction

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

Prototype

HttpResponse execute(HttpUriRequest request) throws IOException, ClientProtocolException;

Source Link

Document

Executes HTTP request using the default context.

Usage

From source file:org.deviceconnect.message.intent.util.IntentAuthProcessor.java

/**
 * ????JSON?.//w  ww .  jav  a 2s  .com
 * 
 * @param client 
 * @param request 
 * @return ????null?
 * @throws IOException ???????
 */
private static JSONObject execute(final HttpClient client, final HttpUriRequest request) throws IOException {

    HttpResponse response = client.execute(request);
    String entity = EntityUtils.toString(response.getEntity(), "UTF-8");
    if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
        return null;
    }

    JSONObject json;
    try {
        json = new JSONObject(entity);
    } catch (JSONException e) {
        json = null;
    }
    return json;
}

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From source file:org.wso2.carbon.appmgt.sampledeployer.http.HttpHandler.java

public static String getHtml(String url) throws IOException {
    HttpClient httpclient = new DefaultHttpClient();
    HttpGet httpget = new HttpGet(url);
    HttpResponse response = httpclient.execute(httpget);
    HttpEntity entity = response.getEntity();
    InputStream content = entity.getContent();
    BufferedReader in = new BufferedReader(new InputStreamReader(content));
    StringBuffer responseBuffer = new StringBuffer();
    String line = "";
    while ((line = in.readLine()) != null) {
        responseBuffer.append(line);/*from w  w w  . j a va  2  s .  c o m*/
    }
    return responseBuffer.toString();
}

---

From source file:com.mysoft.b2b.event.util.HttpUtil.java

/**
 * http???/*from   w w w.  j  ava  2 s.c o m*/
 * @param uri ?
 * @param body ? 
 */
public static Integer send(String uri, String body) {
    if (StringUtils.isEmpty(uri) || StringUtils.isEmpty(body))
        return null;
    HttpClient client = new DefaultHttpClient();
    try {
        HttpPost post = new HttpPost(uri + "/dealEvent.do");
        post.addHeader("Content-Type", "application/json;charset=UTF-8");
        HttpEntity entity = new StringEntity(body);
        post.setEntity(entity);
        HttpResponse response = client.execute(post);
        int code = response.getStatusLine().getStatusCode();
        return code;
    } catch (Exception e) {
        logger.error("http???" + e);
    }
    return null;
}

---

From source file:org.wso2.greg.plugin.Utils.java

private static String getResourceContent(String swaggerDocLink) throws IOException {

    HttpGet request = new HttpGet(swaggerDocLink);
    HttpClient client = getHttpClient();
    HttpResponse response = client.execute(request);

    HttpEntity entity = response.getEntity();
    String responseString = EntityUtils.toString(entity, ResourceConstants.UTF_8);

    return responseString;
}

---

From source file:com.fallenangelsguild.eltime.WebHelper.java

/**
 * Pull the raw text content of the given URL. This call blocks until the
 * operation has completed, and is synchronized because it uses a shared
 * buffer {@link #sBuffer}./*from   w w  w. j a va 2  s .c o m*/
 *
 * @param url The exact URL to request.
 * @return The raw content returned by the server.
 * @throws ApiException If any connection or server error occurs.
 */
protected static synchronized String getUrlContent(String url) throws ApiException {
    if (c == null) {
        throw new ApiException("Must initialize() first");
    }

    // Create client and set our specific user-agent string
    HttpClient client = new DefaultHttpClient();
    HttpGet request = new HttpGet(url);
    request.setHeader("User-Agent", sUserAgent);

    try {
        HttpResponse response = client.execute(request);

        // Check if server response is valid
        StatusLine status = response.getStatusLine();
        if (status.getStatusCode() != HTTP_STATUS_OK) {
            throw new ApiException("Invalid response from server: " + status.toString());
        }

        // Pull content stream from response
        HttpEntity entity = response.getEntity();
        InputStream inputStream = entity.getContent();

        ByteArrayOutputStream content = new ByteArrayOutputStream();

        // Read response into a buffered stream
        int readBytes = 0;
        while ((readBytes = inputStream.read(sBuffer)) != -1) {
            content.write(sBuffer, 0, readBytes);
        }

        // Return result from buffered stream
        return new String(content.toByteArray());
    } catch (IOException e) {
        throw new ApiException("Problem communicating with API", e);
    }
}

---

From source file:com.fhc25.percepcion.osiris.mapviewer.common.restutils.RestClientStream.java

private static void serverConnection(HttpClient client, HttpUriRequest request, RestListenerStream listener) {
    try {//from  w  w w .j a v  a 2  s.co  m
        HttpResponse httpResponse = client.execute(request);
        mResponseCode = httpResponse.getStatusLine().getStatusCode();
        mMessage = httpResponse.getStatusLine().getReasonPhrase();
        HttpEntity entity = httpResponse.getEntity();

        if (mResponseCode >= 200 && mResponseCode <= 299) {
            InputStream isResponse = null;
            if (entity != null) {
                isResponse = entity.getContent();
            }
            listener.onComplete(isResponse);
        } else {
            String errorText = convertStreamToString(entity.getContent());
            Lgr.e(TAG, errorText);
            RestError error = null;
            try {
                error = new RestError(errorText);
            } catch (JSONException je) {
                error = new RestError(-1, 3, "Malformed response");
            }
            listener.onError(error);
        }
        Lgr.v(TAG, "ResponseCode: " + mResponseCode);
    } catch (ConnectTimeoutException e) {
        //e.printStackTrace();
        //listener.onError(new KError(508, 0, e.getMessage()));
        listener.onConnectionFailed();
    } catch (SocketTimeoutException e) {
        //e.printStackTrace();
        //listener.onError(new KError(508, 0, e.getMessage()));
        listener.onConnectionFailed();
    } catch (UnknownHostException e) {
        Lgr.e(TAG, e.getMessage());
        listener.onConnectionFailed();
    } catch (IOException e) {
        Lgr.e(TAG, e.getMessage());
        listener.onConnectionFailed();
    } catch (Exception e) {
        e.printStackTrace();
        listener.onError(new RestError(-1, 0, e.getMessage()));
    }
}

---

From source file:eu.musesproject.windowsclient.contextmonitoring.sensors.RESTController.java

public static Map<String, String> requestSensorInfo(String sensorType, String[] params) throws IOException {
    HttpClient client = new DefaultHttpClient();

    // join params
    String paramsStr = "/";
    for (String param : params) {
        paramsStr += param + "/";
    }/*from ww w.  ja  v a2  s . co m*/

    HttpGet request = new HttpGet("http://localhost:9000/api/" + sensorType + paramsStr);
    HttpResponse response = client.execute(request);
    BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
    String responseData = "";
    Gson gson = new Gson();
    //ToDo:check for readLine function
    responseData = rd.readLine();

    return gson.fromJson(responseData, new HashMap<String, String>().getClass());
}

---

From source file:org.wso2.security.tools.advisorytool.utils.Util.java

/**
 * This method is used to initiate an HTTP connection and retrieve the response.
 *
 * @param url/*from   w w w  .  ja v a 2 s  .  co m*/
 * @param
 * @return
 */
public static StringBuilder httpConnection(String url, List<Header> headerList) throws AdvisoryToolException {
    HttpResponse response = null;
    StringBuilder result = new StringBuilder();
    String line = "";

    try {
        HttpClient client = HttpClientBuilder.create().build();
        HttpGet request = new HttpGet(url);
        for (Header header : headerList) {
            request.addHeader(header.getHeaderName(), header.getHeaderValue());
        }
        response = client.execute(request);
    } catch (IOException e) {
        throw new AdvisoryToolException("Connection to the URL " + url + " failed", e);
    }

    try (BufferedReader rd = new BufferedReader(
            new InputStreamReader(response.getEntity().getContent(), "UTF-8"))) {
        while ((line = rd.readLine()) != null) {
            result.append(line);
        }
    } catch (IOException e) {
        throw new AdvisoryToolException("Error occured while reading the response from " + url, e);
    }
    return result;
}

---

From source file:cn.newgxu.android.bbs.util.NewgxuUtils.java

public static final String get(String url, String charset) {
    HttpClient client = new DefaultHttpClient();
    HttpGet get = new HttpGet(url);
    get.setHeader("Accept", "application/json");
    HttpResponse response = null;//from   ww  w. j a  v  a  2  s  . c  o  m
    HttpEntity entity = null;
    Scanner scanner = null;
    try {
        response = client.execute(get);
        entity = response.getEntity();
        if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
            InputStream in = entity.getContent();
            scanner = new Scanner(in, charset == null ? "utf-8" : charset).useDelimiter("\\A");
            return scanner.hasNext() ? scanner.next() : null;
        }
    } catch (ClientProtocolException e) {
        Log.wtf(TAG, e);
    } catch (IOException e) {
        Log.wtf(TAG, e);
    } finally {
        try {
            if (entity != null) {
                entity.consumeContent();
            }
        } catch (IOException e) {
            Log.wtf(TAG, e);
        }
    }
    return null;
}

---

From source file:com.github.commonclasses.network.DownloadUtils.java

public static long download(String urlStr, File dest, boolean append, DownloadListener downloadListener)
        throws Exception {
    int downloadProgress = 0;
    long remoteSize = 0;
    int currentSize = 0;
    long totalSize = -1;

    if (!append && dest.exists() && dest.isFile()) {
        dest.delete();/*  w  ww  . j  a v  a 2s  . c  o  m*/
    }

    if (append && dest.exists() && dest.exists()) {
        FileInputStream fis = null;
        try {
            fis = new FileInputStream(dest);
            currentSize = fis.available();
        } catch (IOException e) {
            throw e;
        } finally {
            if (fis != null) {
                fis.close();
            }
        }
    }

    HttpGet request = new HttpGet(urlStr);
    request.setHeader("Content-Type", "application/x-www-form-urlencoded");

    if (currentSize > 0) {
        request.addHeader("RANGE", "bytes=" + currentSize + "-");
    }

    HttpParams params = new BasicHttpParams();
    HttpConnectionParams.setConnectionTimeout(params, CONNECT_TIMEOUT);
    HttpConnectionParams.setSoTimeout(params, DATA_TIMEOUT);
    HttpClient httpClient = new DefaultHttpClient(params);

    InputStream is = null;
    FileOutputStream os = null;
    try {
        HttpResponse response = httpClient.execute(request);
        if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
            is = response.getEntity().getContent();
            remoteSize = response.getEntity().getContentLength();
            Header contentEncoding = response.getFirstHeader("Content-Encoding");
            if (contentEncoding != null && contentEncoding.getValue().equalsIgnoreCase("gzip")) {
                is = new GZIPInputStream(is);
            }
            os = new FileOutputStream(dest, append);
            byte buffer[] = new byte[DATA_BUFFER];
            int readSize = 0;
            while ((readSize = is.read(buffer)) > 0) {
                os.write(buffer, 0, readSize);
                os.flush();
                totalSize += readSize;
                if (downloadListener != null) {
                    downloadProgress = (int) (totalSize * 100 / remoteSize);
                    downloadListener.downloading(downloadProgress);
                }
            }
            if (totalSize < 0) {
                totalSize = 0;
            }
        }
    } catch (Exception e) {
        if (downloadListener != null) {
            downloadListener.exception(e);
        }
        e.printStackTrace();
    } finally {
        if (os != null) {
            os.close();
        }
        if (is != null) {
            is.close();
        }
    }

    if (totalSize < 0) {
        throw new Exception("Download file fail: " + urlStr);
    }

    if (downloadListener != null) {
        downloadListener.downloaded(dest);
    }

    return totalSize;
}

---

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