Extracting Link rel values

HTTPLinkHeaderUtil.java

public static String extractURIByRel(final String linkHeader, final String rel) {
    if (linkHeader == null) {
        return null;
    }

    String uriWithSpecifiedRel = null;
    final String[] links = linkHeader.split(", ");
    String linkRelation = null;
    for (final String link : links) {
        final int positionOfSeparator = link.indexOf(';');
        linkRelation = link.substring(positionOfSeparator + 1, link.length()).trim();
        if (extractTypeOfRelation(linkRelation).equals(rel)) {
            uriWithSpecifiedRel = link.substring(1, positionOfSeparator - 1);
            break;
        }
    }

    return uriWithSpecifiedRel;
}

static Object extractTypeOfRelation(final String linkRelation) {
    final int positionOfEquals = linkRelation.indexOf('=');
    return linkRelation.substring(positionOfEquals + 2, linkRelation.length() - 1).trim();
}

This gist is used in:
http://www.baeldung.com/2012/01/18/rest-pagination-in-spring/