code: public static String resolveSolrCoreName(Class<?> type) {
  		SolrDocument annotation = AnnotationUtils.findAnnotation(type, SolrDocument.class);
  		if (annotation != null && StringUtils.isNotBlank(annotation.solrCoreName())) {
  			return annotation.solrCoreName();
  		}
  		return "";
  	}
docs: Resolve solr core/collection name for given type.
  
  @param type
  @return empty string if {@link SolrDocument} not present or {@link SolrDocument#solrCoreName()} is blank.
  @since 1.1