docs: def cache(self, mode="r", encoding=Constants.default_codec, errors=Constants.codec_error):
          """
          Reads given file content and stores it in the content cache.
  
          :param mode: File read mode.
          :type mode: unicode
          :param encoding: File encoding codec.
          :type encoding: unicode
          :param errors: File encoding errors handling.
          :type errors: unicode
          :return: Method success.
          :rtype: bool
          """
  
          self.uncache()
  
          if foundations.strings.is_website(self.__path):
              try:
                  LOGGER.debug("> Caching '{0}' online file content.".format(self.__path))
                  self.__content = urllib2.urlopen(self.__path).readlines()
                  return True
              except urllib2.URLError as error:
                  raise foundations.exceptions.UrlReadError(
                      "!> {0} | '{1}' url is not readable: '{2}'.".format(self.__class__.__name__, self.__path, error))
          elif foundations.common.path_exists(self.__path):
              if not is_readable(self.__path):
                  raise foundations.exceptions.FileReadError(
                      "!> {0} | '{1}' file is not readable!".format(self.__class__.__name__, self.__path))
  
              with codecs.open(self.__path, mode, encoding, errors) as file:
                  LOGGER.debug("> Caching '{0}' file content.".format(self.__path))
                  self.__content = file.readlines()
                  return True
          return False