diff options
Diffstat (limited to 'src/mongo/logger/logv2_appender.h')
-rw-r--r-- | src/mongo/logger/logv2_appender.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/mongo/logger/logv2_appender.h b/src/mongo/logger/logv2_appender.h new file mode 100644 index 00000000000..b94401877ee --- /dev/null +++ b/src/mongo/logger/logv2_appender.h @@ -0,0 +1,81 @@ +/** + * 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. + */ + +#pragma once + +#include "mongo/base/status.h" +#include "mongo/logger/appender.h" +#include "mongo/logv2/attribute_argument_set.h" +#include "mongo/logv2/log_component.h" +#include "mongo/logv2/log_detail.h" +#include "mongo/logv2/log_domain.h" + +namespace mongo { +namespace logger { + +/** + * Appender for writing to a logv2 domain + */ +template <typename Event> +class LogV2Appender : public Appender<Event> { +public: + LogV2Appender(const LogV2Appender&) = delete; + LogV2Appender& operator=(const LogV2Appender&) = delete; + + explicit LogV2Appender(logv2::LogDomain* domain) : _domain(domain) {} + + Status append(const Event& event) override { + logv2::detail::doLog( + + // We need to cast from the v1 logging severity to the equivalent v2 severity + logv2::LogSeverity::cast(event.getSeverity().toInt()), + + // Similarly, we need to transcode the options. They don't offer a cast + // operator, so we need to do some metaprogramming on the types. + logv2::LogOptions{logv2::LogComponent(static_cast<logv2::LogComponent::Value>( + static_cast<std::underlying_type_t<LogComponent::Value>>( + static_cast<LogComponent::Value>(event.getComponent())))), + _domain, + logv2::LogTag{}}, + + // stable id doesn't exist in logv1 + StringData{}, + + "{} {}", // TODO remove this lv2 when it's no longer fun to have + "engine"_attr = "lv2", + "message"_attr = event.getMessage()); + return Status::OK(); + } + +private: + logv2::LogDomain* _domain; +}; + +} // namespace logger +} // namespace mongo |