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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 <string>
- namespace folly {
- class LogCategory;
- class LogMessage;
- /**
- * LogFormatter defines the interface for serializing a LogMessage object
- * into a buffer to be given to a LogWriter.
- */
- class LogFormatter {
- public:
- virtual ~LogFormatter() {}
- /**
- * Serialze a LogMessage object.
- *
- * @param message The LogMessage object to serialze.
- * @param handlerCategory The LogCategory that is currently handling this
- * message. Note that this is likely different from the LogCategory
- * where the message was originally logged, which can be accessed as
- * message->getCategory()
- */
- virtual std::string formatMessage(
- const LogMessage& message,
- const LogCategory* handlerCategory) = 0;
- };
- } // namespace folly
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