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68 lines
2.0 KiB
68 lines
2.0 KiB
/* |
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* Copyright (C) 2017 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#ifndef ANDROID_VINTF_XML_FILE_GROUP_H |
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#define ANDROID_VINTF_XML_FILE_GROUP_H |
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#include <map> |
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#include <type_traits> |
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#include "MapValueIterator.h" |
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#include "XmlFile.h" |
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namespace android { |
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namespace vintf { |
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// A XmlFileGroup is a wrapped multimap from name to T, where T |
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// must be a subclass of XmlFile. |
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template <typename T> |
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struct XmlFileGroup { |
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static_assert(std::is_base_of<XmlFile, T>::value, "T must be a subclass of XmlFile"); |
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private: |
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using map = std::multimap<std::string, T>; |
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using const_range = std::pair<typename map::const_iterator, typename map::const_iterator>; |
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public: |
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virtual ~XmlFileGroup() {} |
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bool addXmlFile(T&& t) { |
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if (!shouldAddXmlFile(t)) { |
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return false; |
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} |
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std::string name = t.name(); |
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mXmlFiles.emplace(std::move(name), std::move(t)); |
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return true; |
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} |
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virtual bool shouldAddXmlFile(const T&) const { return true; } |
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const_range getXmlFiles(const std::string& key) const { return mXmlFiles.equal_range(key); } |
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// Return an iterable to all T objects. Call it as follows: |
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// for (const auto& e : vm.getXmlFiles()) { } |
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ConstMultiMapValueIterable<std::string, T> getXmlFiles() const { |
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return ConstMultiMapValueIterable<std::string, T>(mXmlFiles); |
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} |
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protected: |
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map mXmlFiles; |
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}; |
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} // namespace vintf |
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} // namespace android |
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#endif // ANDROID_VINTF_XML_FILE_GROUP_H
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