ClickHouse/base/poco/Foundation/include/Poco/FormattingChannel.h

98 lines
2.4 KiB
C++

//
// FormattingChannel.h
//
// Library: Foundation
// Package: Logging
// Module: Formatter
//
// Definition of the FormattingChannel class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_FormattingChannel_INCLUDED
#define Foundation_FormattingChannel_INCLUDED
#include "Poco/Channel.h"
#include "Poco/Foundation.h"
namespace Poco
{
class Formatter;
class Foundation_API FormattingChannel : public Channel
/// The FormattingChannel is a filter channel that routes
/// a Message through a Formatter before passing it on
/// to the destination channel.
{
public:
FormattingChannel();
/// Creates a FormattingChannel.
FormattingChannel(Formatter * pFormatter);
/// Creates a FormattingChannel and attaches a Formatter.
FormattingChannel(Formatter * pFormatter, Channel * pChannel);
/// Creates a FormattingChannel and attaches a Formatter
/// and a Channel.
void setFormatter(Formatter * pFormatter);
/// Sets the Formatter used to format the messages
/// before they are passed on. If null, the message
/// is passed on unmodified.
Formatter * getFormatter() const;
/// Returns the Formatter used to format messages,
/// which may be null.
void setChannel(Channel * pChannel);
/// Sets the destination channel to which the formatted
/// messages are passed on.
Channel * getChannel() const;
/// Returns the channel to which the formatted
/// messages are passed on.
void log(const Message & msg);
/// Formats the given Message using the Formatter and
/// passes the formatted message on to the destination
/// Channel.
void setProperty(const std::string & name, const std::string & value);
/// Sets or changes a configuration property.
///
/// Only the "channel" and "formatter" properties are supported, which allow
/// setting the target channel and formatter, respectively, via the LoggingRegistry.
/// The "channel" and "formatter" properties are set-only.
///
/// Unsupported properties are passed to the attached Channel.
void open();
/// Opens the attached channel.
void close();
/// Closes the attached channel.
protected:
~FormattingChannel();
private:
Formatter * _pFormatter;
Channel * _pChannel;
};
} // namespace Poco
#endif // Foundation_FormattingChannel_INCLUDED