0N/A/*
2362N/A * Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
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0N/A */
0N/A
0N/A
0N/Apackage com.sun.jmx.snmp.IPAcl;
0N/A
0N/A
0N/A
0N/Aimport java.util.Vector;
0N/Aimport java.io.Serializable;
0N/A
0N/Aimport java.security.Principal;
0N/Aimport java.security.acl.Owner;
0N/Aimport java.security.acl.LastOwnerException;
0N/Aimport java.security.acl.NotOwnerException;
0N/A
0N/A
0N/A/**
0N/A * Owner of Access Control Lists (ACLs).
0N/A * The initial owner Principal should be specified as an
0N/A * argument to the constructor of the class AclImpl.
0N/A *
0N/A * @see java.security.acl.Owner
0N/A */
0N/A
0N/Aclass OwnerImpl implements Owner, Serializable {
0N/A private static final long serialVersionUID = -576066072046319874L;
0N/A
0N/A private Vector<Principal> ownerList = null;
0N/A
0N/A /**
0N/A * Constructs an empty list of owner.
0N/A */
0N/A public OwnerImpl (){
0N/A ownerList = new Vector<Principal>();
0N/A }
0N/A
0N/A /**
0N/A * Constructs a list of owner with the specified principal as first element.
0N/A *
0N/A * @param owner the principal added to the owner list.
0N/A */
0N/A public OwnerImpl (PrincipalImpl owner){
0N/A ownerList = new Vector<Principal>();
0N/A ownerList.addElement(owner);
0N/A }
0N/A
0N/A /**
0N/A * Adds an owner. Only owners can modify ACL contents. The caller principal
0N/A * must be an owner of the ACL in order to invoke this method. That is, only
0N/A * an owner can add another owner. The initial owner is configured at
0N/A * ACL construction time.
0N/A *
0N/A * @param caller the principal invoking this method.
0N/A * It must be an owner of the ACL.
0N/A * @param owner the owner that should be added to the list of owners.
0N/A * @return true if successful, false if owner is already an owner.
0N/A * @exception NotOwnerException if the caller principal is not an owner
0N/A * of the ACL.
0N/A */
0N/A public boolean addOwner(Principal caller, Principal owner)
0N/A throws NotOwnerException {
0N/A if (!ownerList.contains(caller))
0N/A throw new NotOwnerException();
0N/A
0N/A if (ownerList.contains(owner)) {
0N/A return false;
0N/A } else {
0N/A ownerList.addElement(owner);
0N/A return true;
0N/A }
0N/A }
0N/A
0N/A /**
0N/A * Deletes an owner. If this is the last owner in the ACL, an exception is raised.
0N/A *<P>
0N/A * The caller principal must be an owner of the ACL in order to invoke this method.
0N/A *
0N/A * @param caller the principal invoking this method. It must be an owner
0N/A * of the ACL.
0N/A * @param owner the owner to be removed from the list of owners.
0N/A * @return true if successful, false if owner is already an owner.
0N/A * @exception NotOwnerException if the caller principal is not an owner
0N/A * of the ACL.
0N/A * @exception LastOwnerException if there is only one owner left, so that
0N/A * deleteOwner would leave the ACL owner-less.
0N/A */
0N/A public boolean deleteOwner(Principal caller, Principal owner)
0N/A throws NotOwnerException,LastOwnerException {
0N/A
0N/A if (!ownerList.contains(caller))
0N/A throw new NotOwnerException();
0N/A
0N/A if (!ownerList.contains(owner)){
0N/A return false;
0N/A } else {
0N/A if (ownerList.size() == 1)
0N/A throw new LastOwnerException();
0N/A
0N/A ownerList.removeElement(owner);
0N/A return true;
0N/A }
0N/A }
0N/A
0N/A /**
0N/A * Returns true if the given principal is an owner of the ACL.
0N/A *
0N/A * @param owner the principal to be checked to determine whether or
0N/A * not it is an owner.
0N/A * @return true if the given principal is an owner of the ACL.
0N/A */
0N/A public boolean isOwner(Principal owner){
0N/A return ownerList.contains(owner);
0N/A }
0N/A}