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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
//
// Custom sink for mongodb
// Building and using requires mongocxx library.
// For building mongocxx library check the url below
// http://mongocxx.org/mongocxx-v3/installation/
//
#include "spdlog/common.h"
#include "spdlog/details/log_msg.h"
#include "spdlog/sinks/base_sink.h"
#include <spdlog/details/synchronous_factory.h>
#include <bsoncxx/builder/stream/document.hpp>
#include <bsoncxx/types.hpp>
#include <bsoncxx/view_or_value.hpp>
#include <mongocxx/client.hpp>
#include <mongocxx/instance.hpp>
#include <mongocxx/uri.hpp>
namespace spdlog {
namespace sinks {
template<typename Mutex>
class mongo_sink : public base_sink<Mutex>
{
public:
mongo_sink(const std::string &db_name, const std::string &collection_name, const std::string &uri = "mongodb://localhost:27017")
{
try
{
client_ = spdlog::details::make_unique<mongocxx::client>(mongocxx::uri{uri});
db_name_ = db_name;
coll_name_ = collection_name;
}
catch (const std::exception)
{
throw spdlog_ex("Error opening database");
}
}
~mongo_sink()
{
flush_();
}
protected:
void sink_it_(const details::log_msg &msg) override
{
using bsoncxx::builder::stream::document;
using bsoncxx::builder::stream::finalize;
if (client_ != nullptr)
{
auto doc = document{} << "timestamp" << bsoncxx::types::b_date(msg.time) << "level" << level::to_string_view(msg.level).data()
<< "message" << std::string(msg.payload.begin(), msg.payload.end()) << "logger_name"
<< std::string(msg.logger_name.begin(), msg.logger_name.end()) << "thread_id"
<< static_cast<int>(msg.thread_id) << finalize;
client_->database(db_name_).collection(coll_name_).insert_one(doc.view());
}
}
void flush_() override {}
private:
static mongocxx::instance instance_;
std::string db_name_;
std::string coll_name_;
std::unique_ptr<mongocxx::client> client_ = nullptr;
};
template<>
mongocxx::instance mongo_sink<std::mutex>::instance_{};
#include "spdlog/details/null_mutex.h"
#include <mutex>
using mongo_sink_mt = mongo_sink<std::mutex>;
using mongo_sink_st = mongo_sink<spdlog::details::null_mutex>;
} // namespace sinks
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> mongo_logger_mt(const std::string &logger_name, const std::string &db_name,
const std::string &collection_name, const std::string &uri = "mongodb://localhost:27017")
{
return Factory::template create<sinks::mongo_sink_mt>(logger_name, db_name, collection_name, uri);
}
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> mongo_logger_st(const std::string &logger_name, const std::string &db_name,
const std::string &collection_name, const std::string &uri = "mongodb://localhost:27017")
{
return Factory::template create<sinks::mongo_sink_st>(logger_name, db_name, collection_name, uri);
}
} // namespace spdlog
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