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 #include "io/FileSystem.h" 18 19 #include "androidfw/StringPiece.h" 20 #include "utils/FileMap.h" 21 22 #include "Source.h" 23 #include "io/FileStream.h" 24 #include "util/Files.h" 25 #include "util/Maybe.h" 26 #include "util/Util.h" 27 28 using ::android::StringPiece; 29 30 namespace aapt { 31 namespace io { 32 RegularFile(const Source & source)33RegularFile::RegularFile(const Source& source) : source_(source) {} 34 OpenAsData()35std::unique_ptr<IData> RegularFile::OpenAsData() { 36 android::FileMap map; 37 if (Maybe<android::FileMap> map = file::MmapPath(source_.path, nullptr)) { 38 if (map.value().getDataPtr() && map.value().getDataLength() > 0) { 39 return util::make_unique<MmappedData>(std::move(map.value())); 40 } 41 return util::make_unique<EmptyData>(); 42 } 43 return {}; 44 } 45 OpenInputStream()46std::unique_ptr<io::InputStream> RegularFile::OpenInputStream() { 47 return util::make_unique<FileInputStream>(source_.path); 48 } 49 GetSource() const50const Source& RegularFile::GetSource() const { 51 return source_; 52 } 53 FileCollectionIterator(FileCollection * collection)54FileCollectionIterator::FileCollectionIterator(FileCollection* collection) 55 : current_(collection->files_.begin()), end_(collection->files_.end()) {} 56 HasNext()57bool FileCollectionIterator::HasNext() { 58 return current_ != end_; 59 } 60 Next()61IFile* FileCollectionIterator::Next() { 62 IFile* result = current_->second.get(); 63 ++current_; 64 return result; 65 } 66 InsertFile(const StringPiece & path)67IFile* FileCollection::InsertFile(const StringPiece& path) { 68 return (files_[path.to_string()] = util::make_unique<RegularFile>(Source(path))).get(); 69 } 70 FindFile(const StringPiece & path)71IFile* FileCollection::FindFile(const StringPiece& path) { 72 auto iter = files_.find(path.to_string()); 73 if (iter != files_.end()) { 74 return iter->second.get(); 75 } 76 return nullptr; 77 } 78 Iterator()79std::unique_ptr<IFileCollectionIterator> FileCollection::Iterator() { 80 return util::make_unique<FileCollectionIterator>(this); 81 } 82 83 } // namespace io 84 } // namespace aapt 85