code: @Override
  	public Optional<Link> findLinkWithRel(LinkRelation rel, String representation) {
  
  		return getLinks(representation).stream() //
  				.filter(it -> it.hasRel(rel)) //
  				.findFirst();
  	}
docs: /*
  (non-Javadoc)
  @see org.springframework.hateoas.LinkDiscoverer#findLinkWithRel(org.springframework.hateoas.LinkRelation, java.lang.String)