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| 1 | +/* | |
| 2 | + * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package java.security; | |
| 27 | + | |
| 28 | +import java.util.*; | |
| 29 | +import java.io.ObjectStreamField; | |
| 30 | +import java.io.ObjectOutputStream; | |
| 31 | +import java.io.ObjectInputStream; | |
| 32 | +import java.io.IOException; | |
| 33 | + | |
| 34 | +/** | |
| 35 | + * A UnresolvedPermissionCollection stores a collection | |
| 36 | + * of UnresolvedPermission permissions. | |
| 37 | + * | |
| 38 | + * @see java.security.Permission | |
| 39 | + * @see java.security.Permissions | |
| 40 | + * @see java.security.UnresolvedPermission | |
| 41 | + * | |
| 42 | + * | |
| 43 | + * @author Roland Schemers | |
| 44 | + * | |
| 45 | + * @serial include | |
| 46 | + */ | |
| 47 | + | |
| 48 | +final class UnresolvedPermissionCollection | |
| 49 | +extends PermissionCollection | |
| 50 | +implements java.io.Serializable | |
| 51 | +{ | |
| 52 | + /** | |
| 53 | + * Key is permission type, value is a list of the UnresolvedPermissions | |
| 54 | + * of the same type. | |
| 55 | + * Not serialized; see serialization section at end of class. | |
| 56 | + */ | |
| 57 | + private transient Map<String, List<UnresolvedPermission>> perms; | |
| 58 | + | |
| 59 | + /** | |
| 60 | + * Create an empty UnresolvedPermissionCollection object. | |
| 61 | + * | |
| 62 | + */ | |
| 63 | + public UnresolvedPermissionCollection() { | |
| 64 | + perms = new HashMap<String, List<UnresolvedPermission>>(11); | |
| 65 | + } | |
| 66 | + | |
| 67 | + /** | |
| 68 | + * Adds a permission to this UnresolvedPermissionCollection. | |
| 69 | + * The key for the hash is the unresolved permission's type (class) name. | |
| 70 | + * | |
| 71 | + * @param permission the Permission object to add. | |
| 72 | + */ | |
| 73 | + | |
| 74 | + public void add(Permission permission) | |
| 75 | + { | |
| 76 | + if (! (permission instanceof UnresolvedPermission)) | |
| 77 | + throw new IllegalArgumentException("invalid permission: "+ | |
| 78 | + permission); | |
| 79 | + UnresolvedPermission up = (UnresolvedPermission) permission; | |
| 80 | + | |
| 81 | + List<UnresolvedPermission> v; | |
| 82 | + synchronized (this) { | |
| 83 | + v = perms.get(up.getName()); | |
| 84 | + if (v == null) { | |
| 85 | + v = new ArrayList<UnresolvedPermission>(); | |
| 86 | + perms.put(up.getName(), v); | |
| 87 | + } | |
| 88 | + } | |
| 89 | + synchronized (v) { | |
| 90 | + v.add(up); | |
| 91 | + } | |
| 92 | + } | |
| 93 | + | |
| 94 | + /** | |
| 95 | + * get any unresolved permissions of the same type as p, | |
| 96 | + * and return the List containing them. | |
| 97 | + */ | |
| 98 | + List<UnresolvedPermission> getUnresolvedPermissions(Permission p) { | |
| 99 | + synchronized (this) { | |
| 100 | + return perms.get(p.getClass().getName()); | |
| 101 | + } | |
| 102 | + } | |
| 103 | + | |
| 104 | + /** | |
| 105 | + * always returns false for unresolved permissions | |
| 106 | + * | |
| 107 | + */ | |
| 108 | + public boolean implies(Permission permission) | |
| 109 | + { | |
| 110 | + return false; | |
| 111 | + } | |
| 112 | + | |
| 113 | + /** | |
| 114 | + * Returns an enumeration of all the UnresolvedPermission lists in the | |
| 115 | + * container. | |
| 116 | + * | |
| 117 | + * @return an enumeration of all the UnresolvedPermission objects. | |
| 118 | + */ | |
| 119 | + | |
| 120 | + public Enumeration<Permission> elements() { | |
| 121 | + List<Permission> results = | |
| 122 | + new ArrayList<>(); // where results are stored | |
| 123 | + | |
| 124 | + // Get iterator of Map values (which are lists of permissions) | |
| 125 | + synchronized (this) { | |
| 126 | + for (List<UnresolvedPermission> l : perms.values()) { | |
| 127 | + synchronized (l) { | |
| 128 | + results.addAll(l); | |
| 129 | + } | |
| 130 | + } | |
| 131 | + } | |
| 132 | + | |
| 133 | + return Collections.enumeration(results); | |
| 134 | + } | |
| 135 | + | |
| 136 | + private static final long serialVersionUID = -7176153071733132400L; | |
| 137 | + | |
| 138 | + // Need to maintain serialization interoperability with earlier releases, | |
| 139 | + // which had the serializable field: | |
| 140 | + // private Hashtable permissions; // keyed on type | |
| 141 | + | |
| 142 | + /** | |
| 143 | + * @serialField permissions java.util.Hashtable | |
| 144 | + * A table of the UnresolvedPermissions keyed on type, value is Vector | |
| 145 | + * of permissions | |
| 146 | + */ | |
| 147 | + private static final ObjectStreamField[] serialPersistentFields = { | |
| 148 | + new ObjectStreamField("permissions", Hashtable.class), | |
| 149 | + }; | |
| 150 | + | |
| 151 | + /** | |
| 152 | + * @serialData Default field. | |
| 153 | + */ | |
| 154 | + /* | |
| 155 | + * Writes the contents of the perms field out as a Hashtable | |
| 156 | + * in which the values are Vectors for | |
| 157 | + * serialization compatibility with earlier releases. | |
| 158 | + */ | |
| 159 | + private void writeObject(ObjectOutputStream out) throws IOException { | |
| 160 | + // Don't call out.defaultWriteObject() | |
| 161 | + | |
| 162 | + // Copy perms into a Hashtable | |
| 163 | + Hashtable<String, Vector<UnresolvedPermission>> permissions = | |
| 164 | + new Hashtable<>(perms.size()*2); | |
| 165 | + | |
| 166 | + // Convert each entry (List) into a Vector | |
| 167 | + synchronized (this) { | |
| 168 | + Set<Map.Entry<String, List<UnresolvedPermission>>> set = perms.entrySet(); | |
| 169 | + for (Map.Entry<String, List<UnresolvedPermission>> e : set) { | |
| 170 | + // Convert list into Vector | |
| 171 | + List<UnresolvedPermission> list = e.getValue(); | |
| 172 | + Vector<UnresolvedPermission> vec = new Vector<>(list.size()); | |
| 173 | + synchronized (list) { | |
| 174 | + vec.addAll(list); | |
| 175 | + } | |
| 176 | + | |
| 177 | + // Add to Hashtable being serialized | |
| 178 | + permissions.put(e.getKey(), vec); | |
| 179 | + } | |
| 180 | + } | |
| 181 | + | |
| 182 | + // Write out serializable fields | |
| 183 | + ObjectOutputStream.PutField pfields = out.putFields(); | |
| 184 | + pfields.put("permissions", permissions); | |
| 185 | + out.writeFields(); | |
| 186 | + } | |
| 187 | + | |
| 188 | + /* | |
| 189 | + * Reads in a Hashtable in which the values are Vectors of | |
| 190 | + * UnresolvedPermissions and saves them in the perms field. | |
| 191 | + */ | |
| 192 | + private void readObject(ObjectInputStream in) throws IOException, | |
| 193 | + ClassNotFoundException { | |
| 194 | + // Don't call defaultReadObject() | |
| 195 | + | |
| 196 | + // Read in serialized fields | |
| 197 | + ObjectInputStream.GetField gfields = in.readFields(); | |
| 198 | + | |
| 199 | + // Get permissions | |
| 200 | + Hashtable<String, Vector<UnresolvedPermission>> permissions = | |
| 201 | + (Hashtable<String, Vector<UnresolvedPermission>>)gfields.get("permissions", null); | |
| 202 | + perms = new HashMap<String, List<UnresolvedPermission>>(permissions.size()*2); | |
| 203 | + | |
| 204 | + // Convert each entry (Vector) into a List | |
| 205 | + Set<Map.Entry<String, Vector<UnresolvedPermission>>> set = permissions.entrySet(); | |
| 206 | + for (Map.Entry<String, Vector<UnresolvedPermission>> e : set) { | |
| 207 | + // Convert Vector into ArrayList | |
| 208 | + Vector<UnresolvedPermission> vec = e.getValue(); | |
| 209 | + List<UnresolvedPermission> list = new ArrayList<>(vec.size()); | |
| 210 | + list.addAll(vec); | |
| 211 | + | |
| 212 | + // Add to Hashtable being serialized | |
| 213 | + perms.put(e.getKey(), list); | |
| 214 | + } | |
| 215 | + } | |
| 216 | +} | |