Joe Onorato | 1754d74 | 2016-11-21 17:51:35 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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 GENERIC_MESSAGE_H |
| 18 | #define GENERIC_MESSAGE_H |
| 19 | |
| 20 | #include <map> |
| 21 | #include <string> |
| 22 | |
| 23 | using namespace std; |
| 24 | |
| 25 | /** |
| 26 | * Class to represent a protobuf Message, where we don't actually |
| 27 | * know what any of the fields are, just their type codes. In other |
| 28 | * words, this loslessly stores a parsed protobuf object without |
| 29 | * having the .proto file that generated it. |
| 30 | */ |
| 31 | class GenericMessage |
| 32 | { |
| 33 | public: |
| 34 | GenericMessage(); |
| 35 | ~GenericMessage(); |
| 36 | |
| 37 | enum { |
| 38 | TYPE_VALUE32, |
| 39 | TYPE_VALUE64, |
| 40 | TYPE_MESSAGE, |
| 41 | TYPE_STRING, |
| 42 | TYPE_DATA |
| 43 | }; |
| 44 | |
| 45 | struct Node { |
| 46 | uint32_t type; |
| 47 | union { |
| 48 | uint32_t value32; |
| 49 | uint64_t value64; |
| 50 | GenericMessage* message; |
| 51 | string* str; |
| 52 | string* data; |
| 53 | }; |
| 54 | }; |
| 55 | |
| 56 | void addInt32(int32_t fieldId, uint32_t value); |
| 57 | void addInt64(int32_t fieldId, uint64_t value); |
| 58 | GenericMessage* addMessage(int32_t fieldId); |
| 59 | void addString(int32_t fieldId, const string& value); |
| 60 | |
| 61 | typedef multimap<int32_t,Node>::const_iterator const_iterator; |
| 62 | typedef pair<const_iterator,const_iterator> const_iterator_pair; |
| 63 | |
| 64 | const_iterator_pair find(int fieldId) const; |
| 65 | |
| 66 | private: |
| 67 | multimap<int,Node> mNodes; |
| 68 | }; |
| 69 | |
| 70 | #endif // GENERIC_MESSAGE_H |
| 71 | |