//copy or update tags if the tag storage id has changed when editing the host
//or if the previous tag storage was global
HibernateUtil dh = new HibernateUtil(Tag.class);
dh.setQuery("from tag in class com.dotmarketing.tag.model.Tag where host_id = ?");
dh.setParam(oldTagStorageId);
List<Tag> list = (List<Tag>)dh.list();
HibernateUtil dh1 = new HibernateUtil(Tag.class);
dh1.setQuery("from tag in class com.dotmarketing.tag.model.Tag where host_id = ?");
dh1.setParam(hostIdentifier);
List<Tag> hostTagList = (List<Tag>)dh1.list();