| /* |
| * Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| |
| package com.sun.jmx.snmp.IPAcl; |
| |
| |
| |
| import java.util.Vector; |
| import java.util.Enumeration; |
| import java.io.Serializable; |
| import java.net.UnknownHostException; |
| |
| |
| import java.security.Principal; |
| import java.security.acl.Group; |
| |
| |
| /** |
| * This class is used to represent a subnet mask (a group of hosts |
| * matching the same |
| * IP mask). |
| * |
| */ |
| |
| class GroupImpl extends PrincipalImpl implements Group, Serializable { |
| private static final long serialVersionUID = -7777387035032541168L; |
| |
| /** |
| * Constructs an empty group. |
| * @exception UnknownHostException Not implemented |
| */ |
| public GroupImpl () throws UnknownHostException { |
| } |
| |
| /** |
| * Constructs a group using the specified subnet mask. |
| * |
| * @param mask The subnet mask to use to build the group. |
| * @exception UnknownHostException if the subnet mask cann't be built. |
| */ |
| public GroupImpl (String mask) throws UnknownHostException { |
| super(mask); |
| } |
| |
| /** |
| * Adds the specified member to the group. |
| * |
| * @param p the principal to add to this group. |
| * @return true if the member was successfully added, false if the |
| * principal was already a member. |
| */ |
| public boolean addMember(Principal p) { |
| // we don't need to add members because the ip address is a |
| // subnet mask |
| return true; |
| } |
| |
| public int hashCode() { |
| return super.hashCode(); |
| } |
| |
| /** |
| * Compares this group to the specified object. Returns true if the object |
| * passed in matches the group represented. |
| * |
| * @param p the object to compare with. |
| * @return true if the object passed in matches the subnet mask, |
| * false otherwise. |
| */ |
| public boolean equals (Object p) { |
| if (p instanceof PrincipalImpl || p instanceof GroupImpl){ |
| if ((super.hashCode() & p.hashCode()) == p.hashCode()) return true; |
| else return false; |
| } else { |
| return false; |
| } |
| } |
| |
| /** |
| * Returns true if the passed principal is a member of the group. |
| * |
| * @param p the principal whose membership is to be checked. |
| * @return true if the principal is a member of this group, false otherwise. |
| */ |
| public boolean isMember(Principal p) { |
| if ((p.hashCode() & super.hashCode()) == p.hashCode()) return true; |
| else return false; |
| } |
| |
| /** |
| * Returns an enumeration which contains the subnet mask. |
| * |
| * @return an enumeration which contains the subnet mask. |
| */ |
| public Enumeration<? extends Principal> members(){ |
| Vector<Principal> v = new Vector<Principal>(1); |
| v.addElement(this); |
| return v.elements(); |
| } |
| |
| /** |
| * Removes the specified member from the group. (Not implemented) |
| * |
| * @param p the principal to remove from this group. |
| * @return allways return true. |
| */ |
| public boolean removeMember(Principal p) { |
| return true; |
| } |
| |
| /** |
| * Prints a string representation of this group. |
| * |
| * @return a string representation of this group. |
| */ |
| public String toString() { |
| return ("GroupImpl :"+super.getAddress().toString()); |
| } |
| } |