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| 1 | ||
| 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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