MongoDB C++ Driver  mongocxx-3.10.2
logger.hpp
1 // Copyright 2015 MongoDB Inc.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #pragma once
16 
17 #include <memory>
18 
19 #include <mongocxx/logger-fwd.hpp>
20 
21 #include <bsoncxx/stdx/string_view.hpp>
22 #include <mongocxx/stdx.hpp>
23 
24 #include <mongocxx/config/prelude.hpp>
25 
26 namespace mongocxx {
27 namespace v_noabi {
28 
32 enum class log_level {
33  k_error,
34  k_critical,
35  k_warning,
36  k_message,
37  k_info,
38  k_debug,
39  k_trace,
40 };
41 
50 MONGOCXX_API stdx::string_view MONGOCXX_CALL to_string(log_level level);
51 
55 class logger {
56  public:
57  virtual ~logger();
58 
69  virtual void operator()(log_level level,
70  stdx::string_view domain,
71  stdx::string_view message) noexcept = 0;
72 
73  protected:
77  logger();
78 };
79 
80 } // namespace v_noabi
81 } // namespace mongocxx
82 
83 namespace mongocxx {
84 
85 using ::mongocxx::v_noabi::to_string;
86 
87 } // namespace mongocxx
88 
89 #include <mongocxx/config/postlude.hpp>
The interface that all user-defined loggers must implement.
Definition: logger.hpp:55
virtual void operator()(log_level level, stdx::string_view domain, stdx::string_view message) noexcept=0
Handles a log message.
logger()
Default constructor.
stdx::string_view to_string(log_level level)
Returns a stringification of the given log level.
log_level
The log level of a message passed to a mongocxx::v_noabi::logger.
Definition: logger.hpp:32
The top-level namespace for mongocxx library entities.
Definition: bulk_write-fwd.hpp:19