Adam Lesinski | 0045116 | 2017-10-03 07:44:08 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2017 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_FORMAT_CONTAINER_H |
| 18 | #define AAPT_FORMAT_CONTAINER_H |
| 19 | |
| 20 | #include <inttypes.h> |
| 21 | |
| 22 | #include "google/protobuf/io/coded_stream.h" |
| 23 | #include "google/protobuf/io/zero_copy_stream.h" |
| 24 | |
| 25 | #include "Resources.pb.h" |
| 26 | #include "ResourcesInternal.pb.h" |
| 27 | #include "io/Io.h" |
| 28 | #include "io/Util.h" |
| 29 | #include "util/BigBuffer.h" |
| 30 | |
| 31 | namespace aapt { |
| 32 | |
| 33 | enum ContainerEntryType : uint8_t { |
| 34 | kResTable = 0x00u, |
| 35 | kResFile = 0x01u, |
| 36 | }; |
| 37 | |
| 38 | class ContainerWriter { |
| 39 | public: |
| 40 | explicit ContainerWriter(::google::protobuf::io::ZeroCopyOutputStream* out, size_t entry_count); |
| 41 | |
| 42 | bool AddResTableEntry(const pb::ResourceTable& table); |
| 43 | bool AddResFileEntry(const pb::internal::CompiledFile& file, io::KnownSizeInputStream* in); |
| 44 | bool HadError() const; |
| 45 | std::string GetError() const; |
| 46 | |
| 47 | private: |
| 48 | DISALLOW_COPY_AND_ASSIGN(ContainerWriter); |
| 49 | |
| 50 | ::google::protobuf::io::ZeroCopyOutputStream* out_; |
| 51 | size_t total_entry_count_; |
| 52 | size_t current_entry_count_; |
| 53 | std::string error_; |
| 54 | }; |
| 55 | |
| 56 | class ContainerReader; |
| 57 | |
| 58 | class ContainerReaderEntry { |
| 59 | public: |
| 60 | ContainerEntryType Type() const; |
| 61 | |
| 62 | bool GetResTable(pb::ResourceTable* out_table); |
| 63 | bool GetResFileOffsets(pb::internal::CompiledFile* out_file, off64_t* out_offset, |
| 64 | size_t* out_len); |
| 65 | |
| 66 | bool HadError() const; |
| 67 | std::string GetError() const; |
| 68 | |
| 69 | private: |
| 70 | DISALLOW_COPY_AND_ASSIGN(ContainerReaderEntry); |
| 71 | |
| 72 | friend class ContainerReader; |
| 73 | |
| 74 | explicit ContainerReaderEntry(ContainerReader* reader); |
| 75 | |
| 76 | ContainerReader* reader_; |
| 77 | ContainerEntryType type_ = ContainerEntryType::kResTable; |
| 78 | size_t length_ = 0u; |
| 79 | }; |
| 80 | |
| 81 | class ContainerReader { |
| 82 | public: |
| 83 | explicit ContainerReader(io::InputStream* in); |
| 84 | |
| 85 | ContainerReaderEntry* Next(); |
| 86 | |
| 87 | bool HadError() const; |
| 88 | std::string GetError() const; |
| 89 | |
| 90 | private: |
| 91 | DISALLOW_COPY_AND_ASSIGN(ContainerReader); |
| 92 | |
| 93 | friend class ContainerReaderEntry; |
| 94 | |
| 95 | io::InputStream* in_; |
| 96 | io::ZeroCopyInputAdaptor adaptor_; |
| 97 | ::google::protobuf::io::CodedInputStream coded_in_; |
| 98 | size_t total_entry_count_; |
| 99 | size_t current_entry_count_; |
| 100 | ContainerReaderEntry entry_; |
| 101 | std::string error_; |
| 102 | }; |
| 103 | |
| 104 | } // namespace aapt |
| 105 | |
| 106 | #endif /* AAPT_FORMAT_CONTAINER_H */ |