@Override
 public void execute(Tuple input, BasicOutputCollector collector) {
   try {
     BitlyInfos bInfos = (BitlyInfos) input.getValueByField("bitlyInfos");
     DataInsertion data = new DataInsertion();
     data.addBitlyInfos(bInfos, keyspace);
   } catch (HectorException e) {
     e.printStackTrace();
   }
 }
 @SuppressWarnings("unchecked")
 public void setAmountChunksWithContent(String owner_name, String fileName, long amountChunks) {
   try {
     Mutator<String> mutator = HFactory.createMutator(keyspaceOperator, stringSerializer);
     mutator.insert(
         owner_name,
         "UserFiles",
         HFactory.createSuperColumn(
             fileName,
             Arrays.asList(
                 HFactory.createStringColumn("chunks_with_content", String.valueOf(amountChunks))),
             stringSerializer,
             stringSerializer,
             stringSerializer));
   } catch (HectorException e) {
     log.error("Data was not inserted");
     e.printStackTrace();
   }
 }
 /** Inserts a new row on the UserFiles SuperColumn Family */
 @SuppressWarnings("unchecked")
 public void insertRow(
     String owner_name,
     String fileName,
     String fileID,
     String size,
     String chunks,
     String version,
     int defaultChunkSize) {
   try {
     Mutator<String> mutator = HFactory.createMutator(keyspaceOperator, stringSerializer);
     mutator.insert(
         owner_name,
         "UserFiles",
         HFactory.createSuperColumn(
             fileName,
             Arrays.asList(HFactory.createStringColumn("file_id", fileID)),
             stringSerializer,
             stringSerializer,
             stringSerializer));
     mutator.insert(
         owner_name,
         "UserFiles",
         HFactory.createSuperColumn(
             fileName,
             Arrays.asList(HFactory.createStringColumn("size", size)),
             stringSerializer,
             stringSerializer,
             stringSerializer));
     mutator.insert(
         owner_name,
         "UserFiles",
         HFactory.createSuperColumn(
             fileName,
             Arrays.asList(HFactory.createStringColumn("chunks", chunks)),
             stringSerializer,
             stringSerializer,
             stringSerializer));
     mutator.insert(
         owner_name,
         "UserFiles",
         HFactory.createSuperColumn(
             fileName,
             Arrays.asList(HFactory.createStringColumn("version", version)),
             stringSerializer,
             stringSerializer,
             stringSerializer));
     mutator.insert(
         owner_name,
         "UserFiles",
         HFactory.createSuperColumn(
             fileName,
             Arrays.asList(
                 HFactory.createStringColumn(
                     "default_chunk_size", String.valueOf(defaultChunkSize))),
             stringSerializer,
             stringSerializer,
             stringSerializer));
   } catch (HectorException e) {
     log.error("Data was not inserted");
     e.printStackTrace();
   }
 }
  public void handlRequest(HttpServletRequest request, HttpServletResponse response) {

    printRequest(request);

    String method = request.getParameter(ServiceConstant.METHOD);
    CommonService obj = null;

    try {
      obj = CommonService.createServiceObjectByMethod(method);
    } catch (InstantiationException e1) {
      log.severe(
          "<handlRequest> but exception while create service object for method("
              + method
              + "), exception="
              + e1.toString());
      e1.printStackTrace();
    } catch (IllegalAccessException e1) {
      log.severe(
          "<handlRequest> but exception while create service object for method("
              + method
              + "), exception="
              + e1.toString());
      e1.printStackTrace();
    }

    try {

      if (obj == null) {
        sendResponseByErrorCode(response, ErrorCode.ERROR_PARA_METHOD_NOT_FOUND);
        return;
      }

      obj.setCassandraClient(cassandraClient);
      obj.setMongoClient(mongoClient);
      obj.setRequest(request);

      if (!obj.validateSecurity(request)) {
        sendResponseByErrorCode(response, ErrorCode.ERROR_INVALID_SECURITY);
        return;
      }

      // parse request parameters
      if (!obj.setDataFromRequest(request)) {
        sendResponseByErrorCode(response, obj.resultCode);
        return;
      }

      // print parameters
      obj.printData();

      // handle request
      obj.handleData();
    } catch (HectorException e) {
      obj.resultCode = ErrorCode.ERROR_CASSANDRA;
      log.severe("catch DB exception=" + e.toString());
      e.printStackTrace();
    } catch (JSONException e) {
      obj.resultCode = ErrorCode.ERROR_JSON;
      log.severe("catch JSON exception=" + e.toString());
      e.printStackTrace();
    } catch (Exception e) {
      obj.resultCode = ErrorCode.ERROR_SYSTEM;
      log.severe("catch general exception=" + e.toString());
      e.printStackTrace();
    } finally {
    }

    String responseData = obj.getResponseString();

    // send back response
    sendResponse(response, responseData);
  }