69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
/*
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <string>
|
|
|
|
#include <folly/Range.h>
|
|
#include <folly/logging/LogFormatter.h>
|
|
|
|
namespace folly {
|
|
|
|
/**
|
|
* A LogFormatter implementation that produces messages in a format specified
|
|
* using a config.
|
|
*
|
|
* The glog message format is:
|
|
*
|
|
* {L}{m:02d}{D:02d} {H:2d}:{M:02d}:{S:02d}.{USECS:06d} {THREAD:5d}
|
|
* {FILE}:{LINE}]
|
|
*
|
|
* L: A 1-character code describing the log level (e.g., E, W, I, V)
|
|
* m: month
|
|
* D: day
|
|
* H: hour, 24-hour format
|
|
* M: minute
|
|
* S: second
|
|
* USECS: microseconds
|
|
* THREAD: Thread ID
|
|
* FILE: Filename (just the last component)
|
|
* FUN: The function that logged the message
|
|
* LINE: Line number
|
|
*
|
|
* TODO: enable support for the following 2:
|
|
* - THREADNAME: the thread name.
|
|
* - THREADCTX: thread-local log context data, if it has been set. (This is
|
|
* a Facebook-specific modification)
|
|
*/
|
|
class CustomLogFormatter : public LogFormatter {
|
|
public:
|
|
explicit CustomLogFormatter(StringPiece format, bool colored);
|
|
std::string formatMessage(
|
|
const LogMessage& message, const LogCategory* handlerCategory) override;
|
|
|
|
private:
|
|
void parseFormatString(StringPiece input);
|
|
|
|
std::string logFormat_;
|
|
std::string singleLineLogFormat_;
|
|
std::size_t staticEstimatedWidth_{0};
|
|
std::size_t fileNameCount_{0};
|
|
std::size_t functionNameCount_{0};
|
|
const bool colored_;
|
|
};
|
|
} // namespace folly
|