* @return the search result
*/
private SearchResult searchSource(String sourceIdentifier) {
SearchResult searchResult;
SearchQuery q = new SearchQueryImpl(site);
q.withSource(sourceIdentifier);
try {
searchResult = contentRepository.find(q);
} catch (ContentRepositoryException e) {
logger.error("Error searching for resources with given subject: " + sourceIdentifier);
throw new RuntimeException(e);