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

//
// NullChannel.h
//
// Library: Foundation
// Package: Logging
// Module:  NullChannel
//
// Definition of the NullChannel class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier:	BSL-1.0
//


#ifndef Foundation_NullChannel_INCLUDED
#define Foundation_NullChannel_INCLUDED


#include "Poco/Channel.h"
#include "Poco/Foundation.h"


namespace Poco
{


class Foundation_API NullChannel : public Channel
/// The NullChannel is the /dev/null of Channels.
///
/// A NullChannel discards all information sent to it.
/// Furthermore, its setProperty() method ignores
/// all properties, so it the NullChannel has the
/// nice feature that it can stand in for any
/// other channel class in a logging configuration.
{
public:
    NullChannel();
    /// Creates the NullChannel.

    ~NullChannel();
    /// Destroys the NullChannel.

    void log(const Message & msg);
    /// Does nothing.

    void setProperty(const std::string & name, const std::string & value);
    /// Ignores both name and value.
};


} // namespace Poco


#endif // Foundation_NullChannel_INCLUDED