CustomLogFormatter.h

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/*
 * Copyright 2017-present Facebook, Inc.
 *
 * 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 <folly/Range.h>
#include <folly/logging/LogFormatter.h>
#include <string>

namespace folly {

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 format);

  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