1f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one or more 3f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * contributor license agreements. See the NOTICE file distributed with 4f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this work for additional information regarding copyright ownership. 5f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ASF licenses this file to You under the Apache License, Version 2.0 6f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (the "License"); you may not use this file except in compliance with 7f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the License. You may obtain a copy of the License at 8f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 9f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 10f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 11f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 12f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 13f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See the License for the specific language governing permissions and 15f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * limitations under the License. 16f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 17f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 18f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpackage java.security; 19f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 20f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.util.Enumeration; 21f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.util.Hashtable; 22f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 23f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport org.apache.harmony.security.internal.nls.Messages; 24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/** 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * A default {@code PermissionCollection} implementation that uses a hashtable. 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Each hashtable entry stores a Permission object as both the key and the 28e7637fe9734c4e3bece51db6773505c04e49fabaElliott Hughes * value. 29e7637fe9734c4e3bece51db6773505c04e49fabaElliott Hughes * <p> 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This {@code PermissionCollection} is intended for storing "neutral" 31e7637fe9734c4e3bece51db6773505c04e49fabaElliott Hughes * permissions which do not require special collection. 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfinal class PermissionsHash extends PermissionCollection { 35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 36f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private static final long serialVersionUID = -8491988220802933440L; 37f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private final Hashtable perms = new Hashtable(); 39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Adds the argument to the collection. 42e7637fe9734c4e3bece51db6773505c04e49fabaElliott Hughes * 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @param permission 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the permission to add to the collection. 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public void add(Permission permission) { 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project perms.put(permission, permission); 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns an enumeration of the permissions in the receiver. 52e7637fe9734c4e3bece51db6773505c04e49fabaElliott Hughes * 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @return Enumeration the permissions in the receiver. 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public Enumeration elements() { 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return perms.elements(); 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Indicates whether the argument permission is implied by the permissions 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * contained in the receiver. 62e7637fe9734c4e3bece51db6773505c04e49fabaElliott Hughes * 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @return boolean <code>true</code> if the argument permission is implied 64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by the permissions in the receiver, and <code>false</code> if 65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * it is not. 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @param permission 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java.security.Permission the permission to check 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public boolean implies(Permission permission) { 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (Enumeration elements = elements(); elements.hasMoreElements();) { 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (((Permission)elements.nextElement()).implies(permission)) { 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return true; 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 78