mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-26 09:32:01 +00:00
76 lines
1.8 KiB
C++
76 lines
1.8 KiB
C++
//
|
|
// Formatter.h
|
|
//
|
|
// Library: Foundation
|
|
// Package: Logging
|
|
// Module: Formatter
|
|
//
|
|
// Definition of the Formatter class.
|
|
//
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// SPDX-License-Identifier: BSL-1.0
|
|
//
|
|
|
|
|
|
#ifndef Foundation_Formatter_INCLUDED
|
|
#define Foundation_Formatter_INCLUDED
|
|
|
|
|
|
#include "Poco/Configurable.h"
|
|
#include "Poco/Foundation.h"
|
|
#include "Poco/RefCountedObject.h"
|
|
|
|
|
|
namespace Poco
|
|
{
|
|
|
|
|
|
class Message;
|
|
|
|
|
|
class Foundation_API Formatter : public Configurable, public RefCountedObject
|
|
/// The base class for all Formatter classes.
|
|
///
|
|
/// A formatter basically takes a Message object
|
|
/// and formats it into a string. How the formatting
|
|
/// is exactly done is up to the implementation of
|
|
/// Formatter. For example, a very simple implementation
|
|
/// might simply take the message's Text (see Message::getText()).
|
|
/// A useful implementation should at least take the Message's
|
|
/// Time, Priority and Text fields and put them into a string.
|
|
///
|
|
/// The Formatter class supports the Configurable
|
|
/// interface, so the behaviour of certain formatters
|
|
/// is configurable.
|
|
///
|
|
/// Trivial implementations of of getProperty() and
|
|
/// setProperty() are provided.
|
|
///
|
|
/// Subclasses must at least provide a format() method.
|
|
{
|
|
public:
|
|
Formatter();
|
|
/// Creates the formatter.
|
|
|
|
virtual ~Formatter();
|
|
/// Destroys the formatter.
|
|
|
|
virtual void format(const Message & msg, std::string & text) = 0;
|
|
/// Formats the message and places the result in text.
|
|
/// Subclasses must override this method.
|
|
|
|
void setProperty(const std::string & name, const std::string & value);
|
|
/// Throws a PropertyNotSupportedException.
|
|
|
|
std::string getProperty(const std::string & name) const;
|
|
/// Throws a PropertyNotSupportedException.
|
|
};
|
|
|
|
|
|
} // namespace Poco
|
|
|
|
|
|
#endif // Foundation_Formatter_INCLUDED
|