mirror of https://gitee.com/bigwinds/arangodb
100 lines
2.4 KiB
C++
100 lines
2.4 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2013 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_LOGGER_LOGGER_STREAM_H
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#define ARANGODB_LOGGER_LOGGER_STREAM_H 1
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#include "Basics/Common.h"
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#include <sstream>
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namespace arangodb {
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class LoggerStream {
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LoggerStream(LoggerStream const&) = delete;
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LoggerStream& operator=(LoggerStream const&) = delete;
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public:
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LoggerStream()
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: _topicId(LogTopic::MAX_LOG_TOPICS),
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_level(LogLevel::DEFAULT),
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_line(0),
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_file(nullptr),
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_function(nullptr) {}
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~LoggerStream();
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public:
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LoggerStream& operator<<(LogLevel level) {
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_level = level;
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return *this;
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}
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LoggerStream& operator<<(LogTopic topic) {
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_topicId = topic.id();
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_out << topic.displayName();
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return *this;
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}
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LoggerStream& operator<<(Logger::BINARY binary);
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LoggerStream& operator<<(Logger::RANGE range);
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LoggerStream& operator<<(Logger::FIXED duration);
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LoggerStream& operator<<(Logger::LINE line) {
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_line = line._line;
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return *this;
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}
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LoggerStream& operator<<(Logger::FILE file) {
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_file = file._file;
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return *this;
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}
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LoggerStream& operator<<(Logger::FUNCTION function) {
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_function = function._function;
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return *this;
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}
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template <typename T>
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LoggerStream& operator<<(T const& obj) {
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try {
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_out << obj;
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} catch (...) {
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// ignore any errors here. logging should not have side effects
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}
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return *this;
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}
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private:
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std::stringstream _out;
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size_t _topicId;
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LogLevel _level;
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int _line;
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char const* _file;
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char const* _function;
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};
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}
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#endif
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