1 | // Licensed to the Apache Software Foundation (ASF) under one |
2 | // or more contributor license agreements. See the NOTICE file |
3 | // distributed with this work for additional information |
4 | // regarding copyright ownership. The ASF licenses this file |
5 | // to you under the Apache License, Version 2.0 (the |
6 | // "License"); you may not use this file except in compliance |
7 | // with the License. You may obtain a copy of the License at |
8 | // |
9 | // http://www.apache.org/licenses/LICENSE-2.0 |
10 | // |
11 | // Unless required by applicable law or agreed to in writing, |
12 | // software distributed under the License is distributed on an |
13 | // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
14 | // KIND, either express or implied. See the License for the |
15 | // specific language governing permissions and limitations |
16 | // under the License. |
17 | |
18 | #ifndef BRPC_ADAPTIVE_PROTOCOL_TYPE_H |
19 | #define BRPC_ADAPTIVE_PROTOCOL_TYPE_H |
20 | |
21 | // To brpc developers: This is a header included by user, don't depend |
22 | // on internal structures, use opaque pointers instead. |
23 | |
24 | #include "butil/strings/string_piece.h" |
25 | #include "brpc/options.pb.h" |
26 | |
27 | namespace brpc { |
28 | |
29 | // NOTE: impl. are in brpc/protocol.cpp |
30 | |
31 | // Convert a case-insensitive string to corresponding ProtocolType which is |
32 | // defined in src/brpc/options.proto |
33 | // Returns: PROTOCOL_UNKNOWN on error. |
34 | ProtocolType StringToProtocolType(const butil::StringPiece& type, |
35 | bool print_log_on_unknown); |
36 | inline ProtocolType StringToProtocolType(const butil::StringPiece& type) |
37 | { return StringToProtocolType(type, true); } |
38 | |
39 | // Convert a ProtocolType to a c-style string. |
40 | const char* ProtocolTypeToString(ProtocolType); |
41 | |
42 | // Assignable by both ProtocolType and names. |
43 | class AdaptiveProtocolType { |
44 | public: |
45 | explicit AdaptiveProtocolType() : _type(PROTOCOL_UNKNOWN) {} |
46 | explicit AdaptiveProtocolType(ProtocolType type) : _type(type) {} |
47 | ~AdaptiveProtocolType() {} |
48 | |
49 | void operator=(ProtocolType type) { |
50 | _type = type; |
51 | _name.clear(); |
52 | _param.clear(); |
53 | } |
54 | |
55 | void operator=(butil::StringPiece name) { |
56 | butil::StringPiece param; |
57 | const size_t pos = name.find(':'); |
58 | if (pos != butil::StringPiece::npos) { |
59 | param = name.substr(pos + 1); |
60 | name.remove_suffix(name.size() - pos); |
61 | } |
62 | _type = StringToProtocolType(name); |
63 | if (_type == PROTOCOL_UNKNOWN) { |
64 | _name.assign(name.data(), name.size()); |
65 | } else { |
66 | _name.clear(); |
67 | } |
68 | if (!param.empty()) { |
69 | _param.assign(param.data(), param.size()); |
70 | } else { |
71 | _param.clear(); |
72 | } |
73 | }; |
74 | |
75 | operator ProtocolType() const { return _type; } |
76 | |
77 | const char* name() const { |
78 | return _name.empty() ? ProtocolTypeToString(_type) : _name.c_str(); |
79 | } |
80 | |
81 | bool has_param() const { return !_param.empty(); } |
82 | const std::string& param() const { return _param; } |
83 | |
84 | private: |
85 | ProtocolType _type; |
86 | std::string _name; |
87 | std::string _param; |
88 | }; |
89 | |
90 | } // namespace brpc |
91 | |
92 | #endif // BRPC_ADAPTIVE_PROTOCOL_TYPE_H |
93 | |