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/**
* Copyright (C) 2019-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kGeo
#include "logging.h"
#include <boost/optional.hpp>
#include <utility>
#include "mongo/logger/logger.h"
#include "mongo/logger/log_severity.h"
#include "mongo/logger/logstream_builder.h"
#include "mongo/util/assert_util.h"
#include "mongo/util/concurrency/thread_name.h"
#include "mongo/util/log.h"
namespace s2_mongo {
namespace ml = mongo::logger;
// VLOG messages will be logged at debug level 5 with the S2 log component.
// Expansion of MONGO_LOG_COMPONENT defined in mongo/util/log.h
class VLogSink : public s2_env::LogMessageSink {
public:
explicit VLogSink(int verbosity)
: _v(verbosity),
_lsb(ml::globalLogDomain(),
mongo::getThreadName(),
ml::LogSeverity::Debug(5),
ml::LogComponent::kGeo) {}
std::ostream& stream() override { return _lsb.stream(); }
private:
int _v;
ml::LogstreamBuilderDeprecated _lsb;
};
class SeverityLogSink : public s2_env::LogMessageSink {
public:
// Fatal message will deconstruct it before abort to flush final message.
explicit SeverityLogSink(s2_env::LogMessage::Severity severity, ml::LogstreamBuilderDeprecated builder)
: _severity(severity),
_lsb(std::move(builder)) {}
SeverityLogSink(s2_env::LogMessage::Severity severity, ml::LogstreamBuilderDeprecated builder,
const char* file, int line)
: _severity(severity),
_lsb(std::move(builder)) {
std::ostringstream os;
os << file << ":" << line << ": ";
_lsb->setBaseMessage(os.str());
}
~SeverityLogSink() {
if (_severity == s2_env::LogMessage::Severity::kFatal) {
_lsb = {}; // killing _lsb early to force a log flush
fassertFailed(40048);
}
}
std::ostream& stream() override { return _lsb->stream(); }
private:
s2_env::LogMessage::Severity _severity;
boost::optional<ml::LogstreamBuilderDeprecated> _lsb;
};
template <typename...A>
std::unique_ptr<s2_env::LogMessageSink> makeSinkImpl(s2_env::LogMessage::Severity severity, A&&...a) {
auto builder = [&] {
switch (severity) {
case s2_env::LogMessage::Severity::kInfo:
return mongo::log();
case s2_env::LogMessage::Severity::kWarning:
return mongo::warning();
case s2_env::LogMessage::Severity::kFatal:
default:
return mongo::severe();
}
};
return std::make_unique<SeverityLogSink>(severity, builder(), std::forward<A>(a)...);
}
class MongoLoggingEnv : public s2_env::LoggingEnv {
public:
MongoLoggingEnv() = default;
~MongoLoggingEnv() override {}
bool shouldVLog(int verbosity) override {
return ml::globalLogDomain()->shouldLog(
ml::LogComponent::kGeo,
ml::LogSeverity::Debug(5));
}
std::unique_ptr<s2_env::LogMessageSink> makeSink(int verbosity) override {
return std::make_unique<VLogSink>(verbosity);
}
std::unique_ptr<s2_env::LogMessageSink> makeSink(s2_env::LogMessage::Severity severity) override {
return makeSinkImpl(severity);
}
std::unique_ptr<s2_env::LogMessageSink> makeSink(s2_env::LogMessage::Severity severity,
const char* file, int line) override {
return makeSinkImpl(severity, file, line);
}
};
} // namespace s2_mongo
namespace s2_env {
LoggingEnv& globalLoggingEnv() {
static LoggingEnv *p = new s2_mongo::MongoLoggingEnv();
return *p;
}
} // namespace s2_env
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