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1 /*
2  * Copyright (c) 2011-2015, 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;
25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
26  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 #pragma once
31 
32 #include "parameter_export.h"
33 
34 #include "ConfigurableElement.h"
35 #include "TypeElement.h"
36 
37 #include <list>
38 #include <string>
39 
40 class IMapper;
41 class CParameterBlackboard;
42 class CParameterAccessContext;
43 
44 class PARAMETER_EXPORT CInstanceConfigurableElement : public CConfigurableElement
45 {
46 public:
47     enum Type
48     {
49         EBitParameter,
50         EBitParameterBlock,
51         EParameter,
52         EStringParameter,
53         EParameterBlock,
54         EComponent
55     };
56 
57     CInstanceConfigurableElement(const std::string &strName, const CTypeElement *pTypeElement);
58 
59     // Instantiated type
60     const CTypeElement *getTypeElement() const;
61 
62     bool getMappingData(const std::string &strKey, const std::string *&pStrValue) const override;
63 
64     /**
65      * Returns the mapping data associated to the type element of the current
66      * InstanceConfigurableElement, as a formatted std::string
67      *
68      * @return A std::string containing the formatted mapping
69      */
70     std::string getFormattedMapping() const override;
71 
72     // From CElement
73     std::string getKind() const override;
74     std::string getXmlElementName() const override;
75 
76     // Syncer to/from HW
77     void setSyncer(ISyncer *pSyncer);
78     void unsetSyncer();
79 
80     // Type
81     virtual Type getType() const = 0;
82 
83     // Mapping execution
84     bool map(IMapper &mapper, std::string &strError);
85 
86     // Element properties
87     void showProperties(std::string &strResult) const override;
88 
89     // Scalar or Array?
90     bool isScalar() const;
91 
92     // Array Length
93     size_t getArrayLength() const;
94 
95     void structureToXml(CXmlElement &xmlElement,
96                         CXmlSerializingContext &serializingContext) const override;
97 
98 protected:
99     // Syncer
100     ISyncer *getSyncer() const override;
101     // Syncer set (descendant)
102     void fillSyncerSetFromDescendant(CSyncerSet &syncerSet) const override;
103 
104     /**
105      * Performs the sync if the AutoSync is enabled.
106      * If AutoSync is disabled, any call to sync will returns true, even if synchronization has not
107      * been done. It will happen when the AutoSync will be switched back on.
108      *
109      * @param[in,out] parameterAccessContext Parameter access context object
110      *
111      * @return true if the synchronization succeded or if the AutoSync is off, false otherwise.
112      */
113     bool sync(CParameterAccessContext &parameterAccessContext) const;
114 
115     // Check parameter access path well formed for leaf elements
116     static bool checkPathExhausted(CPathNavigator &pathNavigator,
117                                    utility::ErrorContext &errorContext);
118 
119 private:
120     // Type Element
121     const CTypeElement *_pTypeElement;
122 
123     // Sync to HW
124     ISyncer *_pSyncer{nullptr};
125 };
126