static String getLinkHeaderValue(LinkDescriptor desc, Object entity, Object resource, UriInfo uriInfo) {
URI uri = LinkBuilder.buildURI(desc, entity, resource, entity, uriInfo);
Link header = desc.getLinkHeader();
LinkHeaderBuilder builder = LinkHeader.uri(uri);
if (header.rel().length() != 0)
builder = builder.rel(header.rel());
if (header.rev().length() != 0)
builder = builder.parameter("rev", header.rev());
if (header.type().length() != 0)
builder = builder.type(MediaType.valueOf(header.type()));
if (header.title().length() != 0)