private boolean isValidSystemStreamName(String name) {
    return StringUtils.isNotBlank(name) && SYSTEM_STREAM_NAME_PATTERN.matcher(name).matches();
  }
Helper method to add a store level config item to table configuration
@param key key of the config item
@param value value of the config item
@param tableConfig table configuration
samza-api/src/main/java/org/apache/samza/table/descriptors/LocalTableDescriptor.java