1 /*

     2  * Copyright (c) 1996, 1999, 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 sun.security.acl;

    27 

    28 import java.security.Principal;

    29 import java.security.acl.*;

    30 

    31 /**

    32  * The PermissionImpl class implements the permission

    33  * interface for permissions that are strings.

    34  * @author Satish Dharmaraj

    35  */

    36 public class PermissionImpl implements Permission {

    37 

    38     private String permission;

    39 

    40     /**

    41      * Construct a permission object using a string.

    42      * @param permission the stringified version of the permission.

    43      */

    44     public PermissionImpl(String permission) {

    45         this.permission = permission;

    46     }

    47 

    48     /**

    49      * This function returns true if the object passed matches the permission

    50      * represented in this interface.

    51      * @param another The Permission object to compare with.

    52      * @return true if the Permission objects are equal, false otherwise

    53      */

    54     public boolean equals(Object another) {

    55         if (another instanceof Permission) {

    56             Permission p = (Permission) another;

    57             return permission.equals(p.toString());

    58         } else {

    59             return false;

    60         }

    61     }

    62 

    63     /**

    64      * Prints a stringified version of the permission.

    65      * @return the string representation of the Permission.

    66      */

    67     public String toString() {

    68         return permission;

    69     }

    70 

    71     /**

    72      * Returns a hashcode for this PermissionImpl.

    73      *

    74      * @return a hashcode for this PermissionImpl.

    75      */

    76     public int hashCode() {

    77         return toString().hashCode();

    78     }

    79 

    80 }