| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.jackrabbit.core.security.principal; |
| |
| import org.apache.jackrabbit.api.security.principal.GroupPrincipal; |
| import org.apache.jackrabbit.api.security.principal.JackrabbitPrincipal; |
| |
| import java.security.Principal; |
| import java.util.Enumeration; |
| |
| /** |
| * The EveryonePrincipal contains all principals (excluding itself). |
| */ |
| public final class EveryonePrincipal implements GroupPrincipal, JackrabbitPrincipal { |
| |
| public static final String NAME = "everyone"; |
| private static final EveryonePrincipal INSTANCE = new EveryonePrincipal(); |
| |
| private EveryonePrincipal() { } |
| |
| public static EveryonePrincipal getInstance() { |
| return INSTANCE; |
| } |
| |
| //----------------------------------------------------------< Principal >--- |
| public String getName() { |
| return NAME; |
| } |
| |
| //--------------------------------------------------------------< Group >--- |
| public boolean addMember(Principal user) { |
| return false; |
| } |
| |
| public boolean removeMember(Principal user) { |
| throw new UnsupportedOperationException("Cannot remove a member from the everyone group."); |
| } |
| |
| public boolean isMember(Principal member) { |
| return !member.equals(this); |
| } |
| |
| public Enumeration<? extends Principal> members() { |
| throw new UnsupportedOperationException("Not implemented."); |
| } |
| |
| //-------------------------------------------------------------< Object >--- |
| |
| @Override |
| public int hashCode() { |
| return NAME.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == this || obj instanceof EveryonePrincipal) { |
| return true; |
| } else if (obj instanceof JackrabbitPrincipal) { |
| return NAME.equals(((JackrabbitPrincipal) obj).getName()); |
| } |
| return false; |
| } |
| } |