/**
   * Gets the content type.
   *
   * @param uri the uri
   * @return the content type
   */
  public static String getResponseBodyContentType(final HttpServletRequest request) {
    LOG.trace("Start VtnServiceCommonUtil#getContentType()");

    String contentType = null;
    final String requestURI = request.getRequestURI();
    if (requestURI.lastIndexOf(ApplicationConstants.DOT_REGEX) != -1) {
      String extension =
          requestURI.substring(requestURI.lastIndexOf(ApplicationConstants.DOT_REGEX));
      if (extension.indexOf(ApplicationConstants.QUESTION_MARK_CHAR) != -1) {
        extension = extension.substring(0, extension.indexOf("?"));
      }
      if (null != extension
          && (extension.equalsIgnoreCase(ApplicationConstants.TYPE_XML)
              || extension.equalsIgnoreCase(ApplicationConstants.TYPE_JSON))) {
        if (extension.equalsIgnoreCase(ApplicationConstants.TYPE_XML)) {
          contentType = ContentTypeEnum.APPLICATION_XML.getContentType();
        } else if (extension.equalsIgnoreCase(ApplicationConstants.TYPE_JSON)) {
          contentType = ContentTypeEnum.APPLICATION_JSON.getContentType();
        }
      }
    }

    if (null == contentType) {
      final String acceptHeaderValue = request.getHeader(ApplicationConstants.HTTP_HEADER_ACCEPT);
      if (acceptHeaderValue != null) {
        String acceptHeader[] = acceptHeaderValue.split(ApplicationConstants.SEMI_COLON);
        if (acceptHeader.length > 0) {
          if (acceptHeader[0].equalsIgnoreCase(ContentTypeEnum.APPLICATION_JSON.getContentType())
              || acceptHeader[0].equalsIgnoreCase(
                  ContentTypeEnum.APPLICATION_XML.getContentType())) {
            contentType = acceptHeader[0];
          }
        }
      }
    }

    if (null == contentType) {
      contentType = ContentTypeEnum.APPLICATION_JSON.getContentType();
    }

    LOG.trace("Complete VtnServiceCommonUtil#getContentType()");
    return contentType;
  }
 /**
  * Validate uri.
  *
  * @param uri the uri
  * @param contentType the content type
  * @return true, if successful
  */
 public static boolean validateMediaType(final HttpServletRequest request) {
   LOG.trace("Start VtnServiceCommonUtil#validateMediaType()");
   boolean isMediaTypeCorrect = true;
   if (request.getMethod().equalsIgnoreCase(ApplicationConstants.POST_METHOD_NAME)
       || request.getMethod().equalsIgnoreCase(ApplicationConstants.PUT_METHOD_NAME)) {
     isMediaTypeCorrect = false;
     String contentType = request.getContentType();
     LOG.debug("Media Type : " + contentType);
     if (contentType != null) {
       String content[] = contentType.split(ApplicationConstants.SEMI_COLON);
       if (content.length > 0
           && (content[0].equalsIgnoreCase(ContentTypeEnum.APPLICATION_JSON.getContentType())
               || content[0].equalsIgnoreCase(ContentTypeEnum.APPLICATION_XML.getContentType())
               || content[0].equalsIgnoreCase(
                   ContentTypeEnum.APPLICATION_XML_SCVMM.getContentType()))) {
         isMediaTypeCorrect = true;
       }
     }
   }
   LOG.debug("Valid Media Type : " + isMediaTypeCorrect);
   LOG.trace("Complete VtnServiceCommonUtil#validateMediaType()");
   return isMediaTypeCorrect;
 }