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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 | package issrg.pba; | |
| 51 | ||
| 52 | import issrg.pba.*; | |
| 53 | ||
| 54 | /** | |
| 55 | * This class implements the Response interface, providing a way to create objects | |
| 56 | * that provide the Response interface. 3 different constructors and one manipulation | |
| 57 | * function are provided to manipulate/create the objects. | |
| 58 | * | |
| 59 | * @author gansen | |
| 60 | */ | |
| 61 | public class PERMISResponse implements Response { | |
| 62 | ||
| 63 | private boolean m_bDecision; | |
| 64 | private Obligations m_obligations; | |
| 65 | ||
| 66 | /** | |
| 67 | * Creates a new default instance of PERMISResponse. The default instance | |
| 68 | * contains a negative authorisation decision, and an empty set of obligations. | |
| 69 | */ | |
| 70 | 0 |
 public PERMISResponse() { |
| 71 | 0 | this(false, null); |
| 72 | } | |
| 73 | ||
| 74 | /** | |
| 75 | * Create a new instance of PERMISResponse. The instance contains a positive | |
| 76 | * authorisation decision, and an empty set of obligations. | |
| 77 | */ | |
| 78 | 941 |
public PERMISResponse(boolean decision) { |
| 79 | 941 | this(decision, null); |
| 80 | } | |
| 81 | ||
| 82 | /** | |
| 83 | * Create a new instance of PERMISResponse according the parameters | |
| 84 | * @param decision specifies what authorisation decision | |
| 85 | * is in the response; true refers to a positive authorisation decision. | |
| 86 | * otherwise a negative authorisation decision. | |
| 87 | * @param obligations is the associated set of Obligations that must be | |
| 88 | * enforced along with the decision; can be null, if no Obligations | |
| 89 | * should be enforced. | |
| 90 | * | |
| 91 | */ | |
| 92 | 1058 |
public PERMISResponse(boolean decision, Obligations obligations){ |
| 93 | 1058 | m_bDecision=decision; |
| 94 | 1058 | m_obligations=obligations; |
| 95 | } | |
| 96 | ||
| 97 | /** | |
| 98 | * Retrieve the authorisation decision value. | |
| 99 | * @return true, if access should be granted (subject to enforcing the | |
| 100 | * associated set of Obligations); false otherwise | |
| 101 | */ | |
| 102 | 3174 |
public boolean isAuthorised() { |
| 103 | 3174 | return m_bDecision; |
| 104 | } | |
| 105 | ||
| 106 | /** | |
| 107 | * Set the authorisation decision to the specified value. | |
| 108 | * @param bDecision is the value that the authorisation decision to be set to. A true value | |
| 109 | * refers to a positive authorisation decision. otherwise a negative authorisation decision. | |
| 110 | */ | |
| 111 | 0 |
public void setDecision(boolean bDecision) { |
| 112 | 0 | m_bDecision = bDecision; |
| 113 | } | |
| 114 | ||
| 115 | /** | |
| 116 | * Retrieve the OBLIGATIONS object that is contained in the instance. | |
| 117 | * @return an instance to the OBLIGATIONS object. This instance can be null | |
| 118 | * when there is no OBLIGATIONS object associated with the authorisation decision. | |
| 119 | */ | |
| 120 | 794 |
public Obligations getObligations() { |
| 121 | 794 | return m_obligations; |
| 122 | } | |
| 123 | ||
| 124 | /** | |
| 125 | * Set the associated OBLIGATION object to the specified object. | |
| 126 | * @param obligations This is the object that is to be associated with the authorisation decision, which | |
| 127 | * contains the information about the obligations to be fulfilled with the enforcement of the authorisation decision. | |
| 128 | * | |
| 129 | */ | |
| 130 | 0 |
public void setObligations(Obligations obligations) { |
| 131 | 0 | m_obligations = obligations; |
| 132 | } | |
| 133 | } | |
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