Tom Cherry | d853f77 | 2017-10-27 15:18:02 -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 PROPERTY_INFO_SERIALIZER_TRIE_SERIALIZER_H |
| 18 | #define PROPERTY_INFO_SERIALIZER_TRIE_SERIALIZER_H |
| 19 | |
| 20 | #include <string> |
| 21 | #include <vector> |
| 22 | |
| 23 | #include "property_info_parser/property_info_parser.h" |
| 24 | |
| 25 | #include "trie_builder.h" |
| 26 | #include "trie_node_arena.h" |
| 27 | |
| 28 | namespace android { |
| 29 | namespace properties { |
| 30 | |
| 31 | class TrieSerializer { |
| 32 | public: |
| 33 | TrieSerializer(); |
| 34 | |
| 35 | std::string SerializeTrie(const TrieBuilder& trie_builder); |
| 36 | |
| 37 | private: |
| 38 | void SerializeStrings(const std::set<std::string>& strings); |
| 39 | uint32_t WritePropertyEntry(const PropertyEntryBuilder& property_entry); |
| 40 | |
| 41 | // Writes a new TrieNode to arena, and recursively writes its children. |
| 42 | // Returns the offset within arena. |
| 43 | uint32_t WriteTrieNode(const TrieBuilderNode& builder_node); |
| 44 | |
| 45 | const PropertyInfoArea* serialized_info() const { |
| 46 | return reinterpret_cast<const PropertyInfoArea*>(arena_->data().data()); |
| 47 | } |
| 48 | |
| 49 | std::unique_ptr<TrieNodeArena> arena_; |
| 50 | }; |
| 51 | |
| 52 | } // namespace properties |
| 53 | } // namespace android |
| 54 | |
| 55 | #endif |