| /* |
| * Copyright (c) 2011-2015, Intel Corporation |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, this |
| * list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation and/or |
| * other materials provided with the distribution. |
| * |
| * 3. Neither the name of the copyright holder nor the names of its contributors |
| * may be used to endorse or promote products derived from this software without |
| * specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #pragma once |
| |
| #include "ElementLibrary.h" |
| #include "ElementBuilder.h" |
| |
| #include <map> |
| #include <string> |
| #include <memory> |
| #include <utility> |
| |
| /** 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: |
| virtual ~CDefaultElementLibrary() = default; |
| |
| /** Set the default builder used in fallback mechanism. |
| * @see createElement() for more detail on this mechanism. |
| * |
| * @param[in] defaultBuilder if NULL default builder mechanism, else provided builder is used. |
| */ |
| void setDefaultBuilder(std::unique_ptr<CDefaultElementBuilder> defaultBuilder) |
| { |
| _defaultBuilder = std::move(defaultBuilder); |
| } |
| |
| /** 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: |
| std::unique_ptr<CDefaultElementBuilder> _defaultBuilder; |
| }; |
| |
| 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 (_defaultBuilder == nullptr) { |
| // The default builder mechanism is not enabled |
| return NULL; |
| } |
| |
| // Use the default builder |
| return _defaultBuilder->createElement(xmlElement); |
| } |