1 /*
2  * Copyright (c) 2011-2014, Intel Corporation
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without modification,
6  * are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice, this
9  * list of conditions and the following disclaimer.
10  *
11  * 2. Redistributions in binary form must reproduce the above copyright notice,
12  * this list of conditions and the following disclaimer in the documentation and/or
13  * other materials provided with the distribution.
14  *
15  * 3. Neither the name of the copyright holder nor the names of its contributors
16  * may be used to endorse or promote products derived from this software without
17  * specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
23  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 #include "ConfigurableElementAggregator.h"
31 #include "ConfigurableElement.h"
32 
CConfigurableElementAggregator(std::list<const CConfigurableElement * > & aggregateList,MatchesAggregationCriterion pfnMatchesAggregationCriterion)33 CConfigurableElementAggregator::CConfigurableElementAggregator(
34     std::list<const CConfigurableElement *> &aggregateList,
35     MatchesAggregationCriterion pfnMatchesAggregationCriterion)
36     : _aggregateList(aggregateList), _pfnMatchesAggregationCriterion(pfnMatchesAggregationCriterion)
37 {
38 }
39 
40 // Aggregate
aggegate(const CConfigurableElement * pConfigurableElement)41 void CConfigurableElementAggregator::aggegate(const CConfigurableElement *pConfigurableElement)
42 {
43     doAggregate(pConfigurableElement, _aggregateList);
44 }
45 
46 // Recursive aggregate
doAggregate(const CConfigurableElement * pConfigurableElement,std::list<const CConfigurableElement * > & aggregateList)47 bool CConfigurableElementAggregator::doAggregate(
48     const CConfigurableElement *pConfigurableElement,
49     std::list<const CConfigurableElement *> &aggregateList)
50 {
51     if (!(pConfigurableElement->*_pfnMatchesAggregationCriterion)()) {
52 
53         // Not a candidate for aggregation
54         return false;
55     }
56     // Check children
57     std::list<const CConfigurableElement *> childAggregateElementList;
58 
59     size_t uiNbChildren = pConfigurableElement->getNbChildren();
60     size_t uiNbMatchingChildren = 0;
61 
62     for (size_t index = 0; index < uiNbChildren; index++) {
63 
64         const CConfigurableElement *pChildConfigurableElement =
65             static_cast<const CConfigurableElement *>(pConfigurableElement->getChild(index));
66 
67         uiNbMatchingChildren += doAggregate(pChildConfigurableElement, childAggregateElementList);
68     }
69 
70     if (uiNbMatchingChildren == uiNbChildren) {
71 
72         // All children match => self is a match
73         aggregateList.push_back(pConfigurableElement);
74 
75         return true;
76     } else {
77         // Add children if any
78         aggregateList.insert(aggregateList.end(), childAggregateElementList.begin(),
79                              childAggregateElementList.end());
80 
81         return false;
82     }
83 }
84