code: @Override
  	public String getMimeType() {
  		int index = resourceName.indexOf('.');
  
  		if (index != -1) {
  			String extension = resourceName.substring(index + 1);
  			String fileMimeType = ConfigurationProperties.getFileMimeTypeForExtension(extension);
  
  			if (fileMimeType != null) {
  				return fileMimeType;
  			}
  		}
  
  		return ConfigurationProperties.getDefaultMimeType();
  	}
docs: {@inheritDoc}