src/dcm-daemon/boost_log_dlog_sink.h

   1 /******************************************************************
   2  *
   3  * Copyright 2017 - 2020 Samsung Electronics All Rights Reserved.
   4  *
   5  * Author: Jaroslaw Pelczar <j.pelczar@samsung.com>
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *     http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  ******************************************************************/
  20
  21 #ifndef SHARED_BOOST_LOG_DLOG_SINK_H_
  22 #define SHARED_BOOST_LOG_DLOG_SINK_H_
  23
  24 #include <boost/log/sinks.hpp>
  25 #include <functional>
  26
  27 #include <dlog.h>
  28
  29 template<typename AttributeValueT = int> class dlog_direct_severity_mapping :
  30         public boost::log::sinks::basic_direct_mapping<log_priority, AttributeValueT>
  31 {
  32         typedef  boost::log::sinks::basic_direct_mapping<log_priority, AttributeValueT> base_type;
  33 public:
  34         explicit dlog_direct_severity_mapping(boost::log::attribute_name const& name) :
  35                 base_type(name)
  36         {
  37         }
  38 };
  39
  40 template<typename AttributeValueT = int> class dlog_custom_severity_mapping :
  41         public boost::log::sinks::basic_custom_mapping<log_priority, AttributeValueT>
  42 {
  43         typedef  boost::log::sinks::basic_custom_mapping<log_priority, AttributeValueT> base_type;
  44 public:
  45         explicit dlog_custom_severity_mapping(boost::log::attribute_name const& name) :
  46                 base_type(name, DLOG_DEBUG)
  47         {
  48         }
  49 };
  50
  51 class dlog_output_backend :
  52         public boost::log::sinks::basic_formatted_sink_backend<char>
  53 {
  54         typedef boost::log::sinks::basic_formatted_sink_backend<char>   base_type;
  55         typedef std::function< log_priority (boost::log::record_view const&) > severity_mapper_type;
  56
  57 private:
  58         std::string                             log_domain_;
  59         severity_mapper_type    level_mapper_;
  60
  61         inline void send(log_priority level, string_type const& formatted_message) {
  62                 dlog_print(level, log_domain_.c_str(), "%s", formatted_message.c_str());
  63         }
  64
  65 public:
  66         dlog_output_backend()
  67         {
  68         }
  69
  70     void consume(boost::log::record_view const& rec, string_type const& formatted_message) {
  71         if(!level_mapper_) {
  72                 send(DLOG_DEBUG, formatted_message);
  73         } else {
  74                 send(level_mapper_(rec), formatted_message);
  75         }
  76     }
  77
  78         void set_log_domain(const std::string& name)
  79         {
  80                 log_domain_ = name;
  81         }
  82
  83     void set_severity_mapper(severity_mapper_type const& mapper)
  84     {
  85         level_mapper_ = mapper;
  86     }
  87 };
  88
  89 #endif /* SHARED_BOOST_LOG_DLOG_SINK_H_ */