45 *
46 * @see java.security.Permission
47 * @see java.security.AccessController
48 * @see java.security.Permissions
49 * @see java.security.PermissionCollection
50 * @see java.lang.SecurityManager
51 *
52 *
53 * @author Roland Schemers
54 *
55 * @serial exclude
56 */
57
58 public final class AllPermission extends Permission {
59
60 private static final long serialVersionUID = -2916474571451318075L;
61
62 /**
63 * Creates a new AllPermission object.
64 */
65
66 public AllPermission()
67 {
68 super("<all permissions>");
69 }
70
71
72 /**
73 * Creates a new AllPermission object. This
74 * constructor exists for use by the <code>Policy</code> object
75 * to instantiate new Permission objects.
76 *
77 * @param name ignored
78 * @param actions ignored.
79 */
80 public AllPermission(String name, String actions)
81 {
82 this();
83 }
84
85 /**
86 * Checks if the specified permission is "implied" by
87 * this object. This method always returns true.
88 *
89 * @param p the permission to check against.
90 *
91 * @return return
92 */
93 public boolean implies(Permission p) {
94 return true;
95 }
96
97 /**
98 * Checks two AllPermission objects for equality. Two AllPermission
99 * objects are always equal.
100 *
101 * @param obj the object we are testing for equality with this object.
103 */
104 public boolean equals(Object obj) {
105 return (obj instanceof AllPermission);
106 }
107
108 /**
109 * Returns the hash code value for this object.
110 *
111 * @return a hash code value for this object.
112 */
113
114 public int hashCode() {
115 return 1;
116 }
117
118 /**
119 * Returns the canonical string representation of the actions.
120 *
121 * @return the actions.
122 */
123 public String getActions()
124 {
125 return "<all actions>";
126 }
127
128 /**
129 * Returns a new PermissionCollection object for storing AllPermission
130 * objects.
131 * <p>
132 *
133 * @return a new PermissionCollection object suitable for
134 * storing AllPermissions.
135 */
136
137 public PermissionCollection newPermissionCollection() {
138 return new AllPermissionCollection();
139 }
140
141 }
142
143 /**
144 * A AllPermissionCollection stores a collection
145 * of AllPermission permissions. AllPermission objects
146 * must be stored in a manner that allows them to be inserted in any
147 * order, but enable the implies function to evaluate the implies
148 * method in an efficient (and consistent) manner.
149 *
150 * @see java.security.Permission
151 * @see java.security.Permissions
152 *
153 *
154 * @author Roland Schemers
155 *
156 * @serial include
157 */
158
159 final class AllPermissionCollection
160 extends PermissionCollection
161 implements java.io.Serializable
162 {
163
164 // use serialVersionUID from JDK 1.2.2 for interoperability
165 private static final long serialVersionUID = -4023755556366636806L;
166
167 private boolean all_allowed; // true if any all permissions have been added
168
169 /**
170 * Create an empty AllPermissions object.
171 *
172 */
173
174 public AllPermissionCollection() {
175 all_allowed = false;
176 }
177
178 /**
179 * Adds a permission to the AllPermissions. The key for the hash is
180 * permission.path.
181 *
182 * @param permission the Permission object to add.
183 *
184 * @exception IllegalArgumentException - if the permission is not a
185 * AllPermission
186 *
187 * @exception SecurityException - if this AllPermissionCollection object
188 * has been marked readonly
189 */
190
191 public void add(Permission permission)
192 {
193 if (! (permission instanceof AllPermission))
194 throw new IllegalArgumentException("invalid permission: "+
195 permission);
196 if (isReadOnly())
197 throw new SecurityException("attempt to add a Permission to a readonly PermissionCollection");
198
199 all_allowed = true; // No sync; staleness OK
200 }
201
202 /**
203 * Check and see if this set of permissions implies the permissions
204 * expressed in "permission".
205 *
206 * @param p the Permission object to compare
207 *
208 * @return always returns true.
209 */
210
211 public boolean implies(Permission permission)
212 {
213 return all_allowed; // No sync; staleness OK
214 }
215
216 /**
217 * Returns an enumeration of all the AllPermission objects in the
218 * container.
219 *
220 * @return an enumeration of all the AllPermission objects.
221 */
222 public Enumeration<Permission> elements()
223 {
224 return new Enumeration<Permission>() {
225 private boolean hasMore = all_allowed;
226
227 public boolean hasMoreElements() {
228 return hasMore;
229 }
230
231 public Permission nextElement() {
232 hasMore = false;
233 return SecurityConstants.ALL_PERMISSION;
234 }
235 };
236 }
237 }
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45 *
46 * @see java.security.Permission
47 * @see java.security.AccessController
48 * @see java.security.Permissions
49 * @see java.security.PermissionCollection
50 * @see java.lang.SecurityManager
51 *
52 *
53 * @author Roland Schemers
54 *
55 * @serial exclude
56 */
57
58 public final class AllPermission extends Permission {
59
60 private static final long serialVersionUID = -2916474571451318075L;
61
62 /**
63 * Creates a new AllPermission object.
64 */
65 public AllPermission() {
66 super("<all permissions>");
67 }
68
69
70 /**
71 * Creates a new AllPermission object. This
72 * constructor exists for use by the <code>Policy</code> object
73 * to instantiate new Permission objects.
74 *
75 * @param name ignored
76 * @param actions ignored.
77 */
78 public AllPermission(String name, String actions) {
79 this();
80 }
81
82 /**
83 * Checks if the specified permission is "implied" by
84 * this object. This method always returns true.
85 *
86 * @param p the permission to check against.
87 *
88 * @return return
89 */
90 public boolean implies(Permission p) {
91 return true;
92 }
93
94 /**
95 * Checks two AllPermission objects for equality. Two AllPermission
96 * objects are always equal.
97 *
98 * @param obj the object we are testing for equality with this object.
100 */
101 public boolean equals(Object obj) {
102 return (obj instanceof AllPermission);
103 }
104
105 /**
106 * Returns the hash code value for this object.
107 *
108 * @return a hash code value for this object.
109 */
110
111 public int hashCode() {
112 return 1;
113 }
114
115 /**
116 * Returns the canonical string representation of the actions.
117 *
118 * @return the actions.
119 */
120 public String getActions() {
121 return "<all actions>";
122 }
123
124 /**
125 * Returns a new PermissionCollection object for storing AllPermission
126 * objects.
127 * <p>
128 *
129 * @return a new PermissionCollection object suitable for
130 * storing AllPermissions.
131 */
132 public PermissionCollection newPermissionCollection() {
133 return new AllPermissionCollection();
134 }
135
136 }
137
138 /**
139 * A AllPermissionCollection stores a collection
140 * of AllPermission permissions. AllPermission objects
141 * must be stored in a manner that allows them to be inserted in any
142 * order, but enable the implies function to evaluate the implies
143 * method in an efficient (and consistent) manner.
144 *
145 * @see java.security.Permission
146 * @see java.security.Permissions
147 *
148 *
149 * @author Roland Schemers
150 *
151 * @serial include
152 */
153
154 final class AllPermissionCollection
155 extends PermissionCollection
156 implements java.io.Serializable
157 {
158
159 // use serialVersionUID from JDK 1.2.2 for interoperability
160 private static final long serialVersionUID = -4023755556366636806L;
161
162 private boolean all_allowed; // true if any all permissions have been added
163
164 /**
165 * Create an empty AllPermissions object.
166 *
167 */
168
169 public AllPermissionCollection() {
170 all_allowed = false;
171 }
172
173 /**
174 * Adds a permission to the AllPermissions. The key for the hash is
175 * permission.path.
176 *
177 * @param permission the Permission object to add.
178 *
179 * @exception IllegalArgumentException - if the permission is not a
180 * AllPermission
181 *
182 * @exception SecurityException - if this AllPermissionCollection object
183 * has been marked readonly
184 */
185
186 public void add(Permission permission) {
187 if (! (permission instanceof AllPermission))
188 throw new IllegalArgumentException("invalid permission: "+
189 permission);
190 if (isReadOnly())
191 throw new SecurityException("attempt to add a Permission to a readonly PermissionCollection");
192
193 all_allowed = true; // No sync; staleness OK
194 }
195
196 /**
197 * Check and see if this set of permissions implies the permissions
198 * expressed in "permission".
199 *
200 * @param permission the Permission object to compare
201 *
202 * @return always returns true.
203 */
204
205 public boolean implies(Permission permission) {
206 return all_allowed; // No sync; staleness OK
207 }
208
209 /**
210 * Returns an enumeration of all the AllPermission objects in the
211 * container.
212 *
213 * @return an enumeration of all the AllPermission objects.
214 */
215 public Enumeration<Permission> elements() {
216 return new Enumeration<Permission>() {
217 private boolean hasMore = all_allowed;
218
219 public boolean hasMoreElements() {
220 return hasMore;
221 }
222
223 public Permission nextElement() {
224 hasMore = false;
225 return SecurityConstants.ALL_PERMISSION;
226 }
227 };
228 }
229 }
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