import info.magnolia.context.MgnlContext;
import javax.jcr.Session;
import javax.jcr.Node;
import javax.jcr.NodeIterator;
 
def removeMessages(username) {
    try {
        Session session = MgnlContext.getJCRSession("messages");
        path = "/" + username;
        Node usertree = session.getNode(path);
        NodeIterator childrenIterator = usertree.getNodes();
 
        while (childrenIterator.hasNext()) {
            Node node = childrenIterator.nextNode();
            path = node.getPath();
            println "about to remove ${path} item";
            session.removeItem(path);             
        }
        session.save();
        println "messages of ${username} removed";
 
    } catch (Exception e) {
        println e;
    }
}
 
//example of usage
removeMessages("superuser");