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2 | /* | |
3 | * Copyright (c) 2006, University of Kent | |
4 | * All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions are met: | |
8 | * | |
9 | * Redistributions of source code must retain the above copyright notice, this | |
10 | * list of conditions and the following disclaimer. | |
11 | * | |
12 | * Redistributions in binary form must reproduce the above copyright notice, | |
13 | * this list of conditions and the following disclaimer in the documentation | |
14 | * and/or other materials provided with the distribution. | |
15 | * | |
16 | * 1. Neither the name of the University of Kent nor the names of its | |
17 | * contributors may be used to endorse or promote products derived from this | |
18 | * software without specific prior written permission. | |
19 | * | |
20 | * 2. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | |
21 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
22 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
23 | * PURPOSE ARE DISCLAIMED. | |
24 | * | |
25 | * 3. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
26 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
27 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
28 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
29 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
30 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
31 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
32 | * POSSIBILITY OF SUCH DAMAGE. | |
33 | * | |
34 | * 4. YOU AGREE THAT THE EXCLUSIONS IN PARAGRAPHS 2 AND 3 ABOVE ARE REASONABLE | |
35 | * IN THE CIRCUMSTANCES. IN PARTICULAR, YOU ACKNOWLEDGE (1) THAT THIS | |
36 | * SOFTWARE HAS BEEN MADE AVAILABLE TO YOU FREE OF CHARGE, (2) THAT THIS | |
37 | * SOFTWARE IS NOT "PRODUCT" QUALITY, BUT HAS BEEN PRODUCED BY A RESEARCH | |
38 | * GROUP WHO DESIRE TO MAKE THIS SOFTWARE FREELY AVAILABLE TO PEOPLE WHO WISH | |
39 | * TO USE IT, AND (3) THAT BECAUSE THIS SOFTWARE IS NOT OF "PRODUCT" QUALITY | |
40 | * IT IS INEVITABLE THAT THERE WILL BE BUGS AND ERRORS, AND POSSIBLY MORE | |
41 | * SERIOUS FAULTS, IN THIS SOFTWARE. | |
42 | * | |
43 | * 5. This license is governed, except to the extent that local laws | |
44 | * necessarily apply, by the laws of England and Wales. | |
45 | * | |
46 | * Author : Gansen Zhao | |
47 | * Email: gz7@kent.ac.uk | |
48 | */ | |
49 | ||
50 | ||
51 | package issrg.pba; | |
52 | ||
53 | import issrg.pba.rbac.xmlpolicy.PolicyXMLNode; | |
54 | import issrg.pba.rbac.xmlpolicy.XMLTags; | |
55 | import java.util.Iterator; | |
56 | import java.util.Map; | |
57 | ||
58 | /** | |
59 | * This class implements the Obligation Interface, and provides a way to construct Obligation Object based on | |
60 | * a PolicyXMLNode. For details of the PolicyXMLNode, please refer to the PolicyXMLNode.java and its documents. | |
61 | * @author gansen | |
62 | */ | |
63 | public class SimpleObligation implements issrg.pba.Obligation{ | |
64 | ||
65 | /** | |
66 | * This is the PolicyXMLNode that is to be used to construct the SimpleObligation object. | |
67 | */ | |
68 | PolicyXMLNode m_oblgXMLNode; | |
69 | ||
70 | /** | |
71 | * | |
72 | * Create a new instance of SimpleObligation that contains no obligations. | |
73 | */ | |
74 | 0 | public SimpleObligation() { |
75 | 0 | m_oblgXMLNode=null; |
76 | } | |
77 | ||
78 | ||
79 | /** | |
80 | * Construct a SimpleObligation object based on | |
81 | * XMLPolicyNode (the ObligationNode parameter). | |
82 | * @param ObligationNode The XMLNode that is used to construct the SimpleObligation object. | |
83 | * This function only remembers the ObligationNode, and does not produce a copy of the node. Thus | |
84 | * all future changes to the ObligatonNode will be reflected in the corresponding SimpleObligation | |
85 | * instances. | |
86 | */ | |
87 | 4 | public SimpleObligation(PolicyXMLNode ObligationNode){ |
88 | ||
89 | 4 | m_oblgXMLNode=ObligationNode; |
90 | ||
91 | // java.util.Map ObligationAttributes; | |
92 | // ObligationAttributes=new java.util.Hashtable(); | |
93 | // | |
94 | // if(ObligationNode!=null){ | |
95 | // java.util.Map attributes =ObligationNode.getAttributes(); | |
96 | // Iterator entryIter = attributes.entrySet().iterator(); | |
97 | // Map.Entry entry=null; | |
98 | // while (entryIter.hasNext()) { | |
99 | // entry = (Map.Entry) entryIter.next(); | |
100 | // ObligationAttributes.put(entry.getKey(),entry.getValue()); | |
101 | // } | |
102 | // } | |
103 | } | |
104 | /** | |
105 | * getObligationID is a function inherited from the Obligation Interface. | |
106 | * | |
107 | * | |
108 | */ | |
109 | 0 | public String getObligationID(){ |
110 | ||
111 | 0 | if(this.m_oblgXMLNode==null) |
112 | 0 | return new String(); |
113 | ||
114 | 0 | java.util.Map attributes=m_oblgXMLNode.getAttributes(); |
115 | ||
116 | 0 | String id=(String)attributes.get(XMLTags.OBLIGATION_ID_ATTRIBUTE); |
117 | ||
118 | 0 | return id; |
119 | } | |
120 | ||
121 | /** | |
122 | * Convert the instance to a string representation. | |
123 | */ | |
124 | 0 | public String toString(){ |
125 | 0 | return toXML(); |
126 | } | |
127 | ||
128 | /** | |
129 | * Convert the object to XML representation. | |
130 | */ | |
131 | 0 | public String toXML(){ |
132 | ||
133 | 0 | return m_oblgXMLNode.toXML(); |
134 | ||
135 | } | |
136 | ||
137 | /** | |
138 | * Retrieve the Chronicle attribute's value | |
139 | * @return The value of the Chronicle attribute. The return value may be null if the | |
140 | * Chronicle value is not set in the xml policy. | |
141 | */ | |
142 | 0 | public String getChronicle(){ |
143 | ||
144 | 0 | if(this.m_oblgXMLNode==null) |
145 | 0 | return new String(); |
146 | ||
147 | 0 | java.util.Map attributes=m_oblgXMLNode.getAttributes(); |
148 | ||
149 | 0 | String chronical=(String)attributes.get(XMLTags.OBLIGATION_CHRONICLE_ATTRIBUTE); |
150 | ||
151 | 0 | return chronical; |
152 | } | |
153 | ||
154 | ||
155 | } |
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