1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef AAPT_RESOURCE_TABLE_RESOLVER_H 18 #define AAPT_RESOURCE_TABLE_RESOLVER_H 19 20 #include "Maybe.h" 21 #include "Resolver.h" 22 #include "Resource.h" 23 #include "ResourceTable.h" 24 #include "ResourceValues.h" 25 26 #include <androidfw/AssetManager.h> 27 #include <memory> 28 #include <vector> 29 #include <unordered_set> 30 31 namespace aapt { 32 33 /** 34 * Encapsulates the search of library sources as well as the local ResourceTable. 35 */ 36 class ResourceTableResolver : public IResolver { 37 public: 38 /** 39 * Creates a resolver with a local ResourceTable and an AssetManager 40 * loaded with library packages. 41 */ 42 ResourceTableResolver( 43 std::shared_ptr<const ResourceTable> table, 44 const std::vector<std::shared_ptr<const android::AssetManager>>& sources); 45 46 ResourceTableResolver(const ResourceTableResolver&) = delete; // Not copyable. 47 48 virtual Maybe<ResourceId> findId(const ResourceName& name) override; 49 50 virtual Maybe<Entry> findAttribute(const ResourceName& name) override; 51 52 virtual Maybe<ResourceName> findName(ResourceId resId) override; 53 54 private: 55 struct CacheEntry { 56 ResourceId id; 57 std::unique_ptr<Attribute> attr; 58 }; 59 60 const CacheEntry* buildCacheEntry(const ResourceName& name); 61 62 std::shared_ptr<const ResourceTable> mTable; 63 std::vector<std::shared_ptr<const android::AssetManager>> mSources; 64 std::map<ResourceName, CacheEntry> mCache; 65 std::unordered_set<std::u16string> mIncludedPackages; 66 }; 67 68 } // namespace aapt 69 70 #endif // AAPT_RESOURCE_TABLE_RESOLVER_H 71
