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/*
* INTEL CONFIDENTIAL
* Copyright 2013 Intel
* Corporation All Rights Reserved.
*
* The source code contained or described herein and all documents related to
* the source code ("Material") are owned by Intel Corporation or its suppliers
* or licensors. Title to the Material remains with Intel Corporation or its
* suppliers and licensors. The Material contains trade secrets and proprietary
* and confidential information of Intel or its suppliers and licensors. The
* Material is protected by worldwide copyright and trade secret laws and
* treaty provisions. No part of the Material may be used, copied, reproduced,
* modified, published, uploaded, posted, transmitted, distributed, or
* disclosed in any way without Intel’s prior express written permission.
*
* No license under any patent, copyright, trade secret or other intellectual
* property right is granted to or conferred upon you by disclosure or delivery
* of the Materials, either expressly, by implication, inducement, estoppel or
* otherwise. Any license under such intellectual property rights must be
* express and approved by Intel in writing.
*/
#pragma once
#include "ElementLibrary.h"
#include "ElementBuilder.h"
#include <map>
#include <string>
/** Factory that creates an element given an xml element. If no matching builder is found, it uses
* the default builder.
*
* @tparam CDefaultElementBuilder is the class of the element builder to use if no corresponding
* builder is found for a given xml element.
*/
template<class CDefaultElementBuilder>
class CDefaultElementLibrary: public CElementLibrary
{
public:
explicit CDefaultElementLibrary(bool bEnableDefaultMechanism = true);
virtual ~CDefaultElementLibrary() {}
/** Enable the default builder fallback mechanism.
* @see createElement() for more detail on this mechanism.
*
* @param[in] bEnable if true/false, activate/deactivate the default builder mechanism.
*/
void enableDefaultMechanism(bool bEnable) {
_bEnableDefaultMechanism = bEnable;
}
/** Create and return an element instanciated depending on an xmlElement.
*
* @param[in] xmlElement: The xml element used to find a matching builder
*
* @return If a matching builder is found, return an element created from the builder,
* otherwise:
* If the default mechanism is enable (@see enableDefaultMechanism),
* create the elemen with the default element builder.
* otherwise, return NULL.
*/
CElement* createElement(const CXmlElement& xmlElement) const;
private:
bool _bEnableDefaultMechanism;
CDefaultElementBuilder _DefaultElementBuilder;
};
template<class CDefaultElementBuilder>
CDefaultElementLibrary<CDefaultElementBuilder>::CDefaultElementLibrary(bool bEnableDefaultMechanism) :
_bEnableDefaultMechanism(bEnableDefaultMechanism),
_DefaultElementBuilder() {}
template<class CDefaultElementBuilder>
CElement* CDefaultElementLibrary<CDefaultElementBuilder>::createElement(const CXmlElement& xmlElement) const
{
CElement* builtElement = CElementLibrary::createElement(xmlElement);
if (builtElement != NULL) {
// The element was created, return it
return builtElement;
}
if (!_bEnableDefaultMechanism) {
// The default builder mechanism is not enabled
return NULL;
}
// Use the default builder
return _DefaultElementBuilder.createElement(xmlElement);
}
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