Exemplo n.º 1
0
  /**
   * Make a web call to the provided URL, using the specified method, and return pertinent web
   * service response data
   *
   * @param url the URL_TEMPLATE of the web service to call, as a string
   * @param requestBody the body of the request (optional)
   * @return the response from the server
   */
  public static WebServiceResponse makeHttpPostRequestWith(String url, String requestBody) {
    // HTTP response code (e.g., 200, 401, 404, etc)
    int responseCode;
    // Result of web service call (response data, response code, and exception if any)
    WebServiceResponse response = new WebServiceResponse();
    // URL connection to web service and response code
    HttpURLConnection connection = null;

    // Log request
    Log.i(TAG, "Making HTTP POST request with URL: " + url);
    // Log request body
    Log.i(TAG, "Request body: " + requestBody);

    try {
      // Create a URL from the supplied string
      URL webServiceUrl = new URL(url);

      // Initiate connection
      connection = (HttpURLConnection) webServiceUrl.openConnection();
      connection.setConnectTimeout(CONNECT_TIMEOUT);
      connection.setReadTimeout(READ_TIMEOUT);

      // Indicate that this is a POST request.
      connection.setRequestMethod("POST");

      // Set body length
      connection.setFixedLengthStreamingMode(requestBody.getBytes().length);
      connection.setRequestProperty(
          REQUEST_PROPERTY_KEY_CONTENT_TYPE, REQUEST_PROPERTY_APPLICATION);

      // Write out data
      OutputStream outputStream = new BufferedOutputStream(connection.getOutputStream());
      outputStream.write(requestBody.getBytes());
      outputStream.flush();
      outputStream.close();

      // Handle HTTP response code TODO: Handle response code in calling method?
      responseCode = connection.getResponseCode();
      if (responseCode == HttpURLConnection.HTTP_UNAUTHORIZED) {
        Log.e(TAG, String.format("HTTP Unauthorized (%d)", responseCode));
      } else if (responseCode != HttpURLConnection.HTTP_OK) {
        Log.e(TAG, String.format("HTTP Error %s", responseCode));
      }

      // Add HTTP response code to return data
      response.setHttpResponseCode(responseCode);

      // get raw response body
      InputStream in = new BufferedInputStream(connection.getInputStream());
      String responseBody = new Scanner(in).useDelimiter("\\A").next();

      // Add response body to return data
      response.setRawResponseBody(responseBody);

      return response;
    } catch (MalformedURLException e) {
      Log.e(TAG, "Malformed request URL");
      response.setException(e);
    } catch (SocketTimeoutException e) {
      Log.d(TAG, "data retrieval or connection timed out\n" + e.toString());
      response.setException(e);
    } catch (IOException e) {
      Log.e(TAG, "I/O Exception in openConnection()");
      response.setException(e);
    } finally {
      // Log HTTP response code
      Log.i(TAG, "Web service response code: " + response.getHttpResponseCode());

      // Log response body
      Log.i(TAG, "Web service response: " + response.getRawResponseBody());

      // Always close connection on completion
      if (connection != null) {
        connection.disconnect();
      }
    }
    return response;
  }
Exemplo n.º 2
0
  /**
   * Make a web call to the provided URL, using the specified method, and return pertinent web
   * service response data
   *
   * @param url the URL_TEMPLATE of the web service to call, as a string
   * @return the response from the server
   */
  public static WebServiceResponse makeHttpGetRequestWith(String url) {
    int responseCode;
    // Result of web service call (response data, response code, and exception if any)
    WebServiceResponse response = new WebServiceResponse();
    // URL connection to web service and response code
    HttpURLConnection connection = null;

    // Log request
    Log.i(TAG, "Making HTTP GET request with URL: " + url);

    try {
      // Create a URL from the supplied string
      URL webServiceUrl = new URL(url);

      // Initiate connection
      connection = (HttpURLConnection) webServiceUrl.openConnection();

      // Set timeout limits
      connection.setConnectTimeout(CONNECT_TIMEOUT);
      connection.setReadTimeout(READ_TIMEOUT);

      // Indicate that this is a GET request
      connection.setRequestMethod("GET");

      // Handle HTTP response code TODO: Handle response code in calling method?
      responseCode = connection.getResponseCode();
      if (responseCode == HttpURLConnection.HTTP_UNAUTHORIZED) {
        Log.e(TAG, String.format("HTTP Unauthorized (%d)", responseCode));
      } else if (responseCode != HttpURLConnection.HTTP_OK) {
        Log.e(TAG, String.format("HTTP Error %s", responseCode));
      }

      // Add HTTP response code to return data
      response.setHttpResponseCode(responseCode);

      // get raw response body
      InputStream in = new BufferedInputStream(connection.getInputStream());
      String responseBody = new Scanner(in).useDelimiter("\\A").next();

      // Add response body to return data
      response.setRawResponseBody(responseBody);

      return response;
    } catch (MalformedURLException e) {
      Log.e(TAG, "Malformed request URL");
      response.setException(e);
    } catch (SocketTimeoutException e) {
      Log.d(TAG, "data retrieval or connection timed out\n" + e.toString());
      response.setException(e);
    } catch (IOException e) {
      Log.e(TAG, "I/O Exception in openConnection()");
      response.setException(e);
    } finally {
      // Log HTTP response code
      Log.i(TAG, "Web service response code: " + response.getHttpResponseCode());

      // Log response body
      Log.i(TAG, "Web service response: " + response.getRawResponseBody());

      // Always close connection on completion
      if (connection != null) {
        connection.disconnect();
      }
    }
    return response;
  }