protected MMObjectNode getGroupOrUserNode(Parameters a) {
MMObjectNode groupOrUser = getNode(a.getString(PARAMETER_GROUPORUSER));
if (groupOrUser == null)
throw new IllegalArgumentException(
"There is no node with id '" + a.get(PARAMETER_GROUPORUSER) + "'");
MMObjectBuilder parent = groupOrUser.getBuilder();
MMObjectBuilder userBuilder = Authenticate.getInstance().getUserProvider().getUserBuilder();
if (!(parent instanceof Groups || userBuilder.getClass().isInstance(parent))) {
throw new IllegalArgumentException(
"Node '" + a.get(PARAMETER_GROUPORUSER) + "' does not represent a group or a user");
}
return groupOrUser;
}
protected boolean isOwnNode(User user, MMObjectNode node) {
return Authenticate.getInstance().getUserProvider().isOwnNode(user, node);
}