Source Code Cross Referenced for Role.java in  » Net » Coadunation_1.0.1 » com » rift » coad » lib » security » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » Coadunation_1.0.1 » com.rift.coad.lib.security 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        /*
02:         * CoadunationLib: The coaduntion implementation library.
03:         * Copyright (C) 2006  Rift IT Contracting
04:         * 
05:         * This library is free software; you can redistribute it and/or
06:         * modify it under the terms of the GNU Lesser General Public
07:         * License as published by the Free Software Foundation; either
08:         * version 2.1 of the License, or (at your option) any later version.
09:         * 
10:         * This library is distributed in the hope that it will be useful,
11:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
12:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13:         * Lesser General Public License for more details.
14:         * 
15:         * You should have received a copy of the GNU Lesser General Public
16:         * License along with this library; if not, write to the Free Software
17:         * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
18:         *
19:         * Role.java
20:         *
21:         * The role object that contains the list principals. If a user or object has
22:         * a principal that matches, than access will be granted to run as that role.
23:         */
24:
25:        // the package name
26:        package com.rift.coad.lib.security;
27:
28:        // java imports
29:        import java.util.Set;
30:        import java.util.Iterator;
31:
32:        // log 4 j imports
33:        import org.apache.log4j.Logger;
34:
35:        /**
36:         * The role object that contains the list principals. If a user or object has
37:         * a principal that matches, than access will be granted to run as that role.
38:         *
39:         * @author Brett Chaldecott
40:         */
41:        public class Role implements  PrincipalContainer {
42:            // log
43:            private static Logger log = Logger.getLogger(Role.class.getName());
44:
45:            // the classes private member variables
46:            private String name = null;
47:            private Set principals = null;
48:
49:            /** 
50:             * Creates a new instance of a role using the supplied principal list
51:             *
52:             * @param name The name of the role.
53:             * @param principals The list of principals assigned to this role.
54:             */
55:            public Role(String name, Set principals) {
56:                this .name = name;
57:                this .principals = principals;
58:            }
59:
60:            /**
61:             * The getter method for the name of this role.
62:             *
63:             * @return The string containing the name of this role.
64:             */
65:            public String getName() {
66:                return name;
67:            }
68:
69:            /**
70:             * This method returns the list of principals.
71:             *
72:             * @return The list of principals.
73:             */
74:            public Set getPrincipals() {
75:                return principals;
76:            }
77:
78:            /**
79:             * This method will return true if one of the principals match
80:             *
81:             * @return TRUE if one of the principals in sets match.
82:             * @param queryPrincipals The set of principals that will be used to query
83:             *      this role.
84:             */
85:            public boolean canAccessRole(Set queryPrincipals) {
86:                for (Iterator iter = queryPrincipals.iterator(); iter.hasNext();) {
87:                    String principal = (String) iter.next();
88:                    if (principals.contains(principal)) {
89:                        return true;
90:                    }
91:                }
92:                return false;
93:            }
94:        }
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