TableMerger.h revision 83f2255f69729e0e97539e96e5e6161843e85823
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_TABLEMERGER_H 18#define AAPT_TABLEMERGER_H 19 20#include "ResourceTable.h" 21#include "ResourceValues.h" 22#include "util/Util.h" 23 24#include "process/IResourceTableConsumer.h" 25 26#include <queue> 27#include <set> 28 29namespace aapt { 30 31struct FileToMerge { 32 ResourceTable* srcTable; 33 std::u16string srcPath; 34 std::u16string dstPath; 35}; 36 37/** 38 * TableMerger takes resource tables and merges all packages within the tables that have the same 39 * package ID. 40 * 41 * If a package has a different name, all the entries in that table have their names mangled 42 * to include the package name. This way there are no collisions. In order to do this correctly, 43 * the TableMerger needs to also mangle any FileReference paths. Once these are mangled, 44 * the original source path of the file, along with the new destination path is recorded in the 45 * queue returned from getFileMergeQueue(). 46 * 47 * Once the merging is complete, a separate process can go collect the files from the various 48 * source APKs and either copy or process their XML and put them in the correct location in 49 * the final APK. 50 */ 51class TableMerger { 52public: 53 TableMerger(IAaptContext* context, ResourceTable* outTable); 54 55 inline std::queue<FileToMerge>* getFileMergeQueue() { 56 return &mFilesToMerge; 57 } 58 59 inline const std::set<std::u16string>& getMergedPackages() const { 60 return mMergedPackages; 61 } 62 63 /** 64 * Merges resources from the same or empty package. This is for local sources. 65 */ 66 bool merge(const Source& src, ResourceTable* table); 67 68 /** 69 * Merges resources from the given package, mangling the name. This is for static libraries. 70 */ 71 bool mergeAndMangle(const Source& src, const StringPiece16& package, ResourceTable* table); 72 73private: 74 IAaptContext* mContext; 75 ResourceTable* mMasterTable; 76 ResourceTablePackage* mMasterPackage; 77 78 std::set<std::u16string> mMergedPackages; 79 std::queue<FileToMerge> mFilesToMerge; 80 81 bool doMerge(const Source& src, ResourceTable* srcTable, ResourceTablePackage* srcPackage, 82 const bool manglePackage); 83 84 std::unique_ptr<Value> cloneAndMangle(ResourceTable* table, const std::u16string& package, 85 Value* value); 86 std::unique_ptr<Value> clone(Value* value); 87}; 88 89} // namespace aapt 90 91#endif /* AAPT_TABLEMERGER_H */ 92