001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020package org.apache.directory.api.ldap.aci; 021 022 023import java.util.Collection; 024import java.util.Collections; 025import java.util.HashSet; 026import java.util.Set; 027 028 029/** 030 * An abstract base class for {@link ItemPermission} and {@link UserPermission}. 031 * 032 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 033 */ 034public abstract class Permission 035{ 036 /** The precedence. */ 037 private final Integer precedence; 038 039 /** The grants and denials. */ 040 private final Set<GrantAndDenial> grantsAndDenials; 041 042 /** The grants. */ 043 private final Set<GrantAndDenial> grants; 044 045 /** The denials. */ 046 private final Set<GrantAndDenial> denials; 047 048 049 /** 050 * Creates a new instance 051 * 052 * @param precedence 053 * the precedence of this permission (<tt>-1</tt> to use the 054 * default) 055 * @param grantsAndDenials 056 * the set of {@link GrantAndDenial}s 057 */ 058 protected Permission( Integer precedence, Collection<GrantAndDenial> grantsAndDenials ) 059 { 060 this.precedence = precedence; 061 062 Set<GrantAndDenial> tmpGrantsAndDenials = new HashSet<>(); 063 Set<GrantAndDenial> tmpGrants = new HashSet<>(); 064 Set<GrantAndDenial> tmpDenials = new HashSet<>(); 065 066 for ( GrantAndDenial gad : grantsAndDenials ) 067 { 068 if ( gad.isGrant() ) 069 { 070 tmpGrants.add( gad ); 071 } 072 else 073 { 074 tmpDenials.add( gad ); 075 } 076 077 tmpGrantsAndDenials.add( gad ); 078 } 079 080 this.grants = Collections.unmodifiableSet( tmpGrants ); 081 this.denials = Collections.unmodifiableSet( tmpDenials ); 082 this.grantsAndDenials = Collections.unmodifiableSet( tmpGrantsAndDenials ); 083 } 084 085 086 /** 087 * Gets the precedence of this permission. 088 * 089 * @return the precedence 090 */ 091 public Integer getPrecedence() 092 { 093 return precedence; 094 } 095 096 097 /** 098 * Gets the set of {@link GrantAndDenial}s. 099 * 100 * @return the grants and denials 101 */ 102 public Set<GrantAndDenial> getGrantsAndDenials() 103 { 104 return grantsAndDenials; 105 } 106 107 108 /** 109 * Gets the set of grants only. 110 * 111 * @return the grants 112 */ 113 public Set<GrantAndDenial> getGrants() 114 { 115 return grants; 116 } 117 118 119 /** 120 * Gets the set of denials only. 121 * 122 * @return the denials 123 */ 124 public Set<GrantAndDenial> getDenials() 125 { 126 return denials; 127 } 128}