formattingchannel.h

This software aims to create an applet and panel tools to manage a wireless interface card, such as

//
// FormattingChannel.h
//
// $Id: //poco/Main/Foundation/include/Foundation/FormattingChannel.h#5 $
//
// Definition of the FormattingChannel class.
//
// Copyright (c) 2004, Guenter Obiltschnig/Applied Informatics.
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
// 
// 3. Redistributions in any form must be accompanied by information on
//    how to obtain complete source code for this software and any
//    accompanying software that uses this software.  The source code
//    must either be included in the distribution or be available for no
//    more than the cost of distribution plus a nominal fee, and must be
//    freely redistributable under reasonable conditions.  For an
//    executable file, complete source code means the source code for all
//    modules it contains.  It does not include source code for modules or
//    files that typically accompany the major components of the operating
//    system on which the executable file runs.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// POSSIBILITY OF SUCH DAMAGE.
//


#ifndef Foundation_FormattingChannel_INCLUDED
#define Foundation_FormattingChannel_INCLUDED


#ifndef Foundation_Foundation_INCLUDED
#include "Foundation/Foundation.h"
#endif
#ifndef Foundation_Channel_INCLUDED
#include "Foundation/Channel.h"
#endif


Foundation_BEGIN


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.

	void open();
		/// Opens the attached channel.
		
	void close();
		/// Closes the attached channel.

protected:
	~FormattingChannel();

private:
	Formatter* _pFormatter;
	Channel* _pChannel;
};


Foundation_END


#endif // Foundation_FormattingChannel_INCLUDED