patternformatter.h

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

//
// PatternFormatter.h
//
// $Id: //poco/Main/Foundation/include/Foundation/PatternFormatter.h#5 $
//
// Definition of the PatternFormatter 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;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//


#ifndef Foundation_PatternFormatter_INCLUDED
#define Foundation_PatternFormatter_INCLUDED


#ifndef Foundation_Foundation_INCLUDED
#include "Foundation/Foundation.h"
#endif
#ifndef Foundation_Formatter_INCLUDED
#include "Foundation/Formatter.h"
#endif
#ifndef Foundation_Message_INCLUDED
#include "Foundation/Message.h"
#endif


Foundation_BEGIN


class Foundation_API PatternFormatter: public Formatter
	/// This Formatter allows for custom formatting of
	/// log messages based on format patterns.
	///
	/// The format pattern is used as a template to format the message and
	/// is copied character by character except for the following special characters,
	/// which are replaced by the corresponding value.
	///
	///   * %s - message source
	///   * %t - message text
	///   * %l - message priority level (1 .. 7)
	///   * %p - message priority (Fatal, Critical, Error, Warning, Notice, Information, Debug, Trace)
	///   * %q - abbreviated message priority (F, C, E, W,N, I, D, T)
	///   * %P - message process identifier
	///   * %T - message thread identifier
	///   * %N - node or host name
	///   * %w - message date/time abbreviated weekday (Mon, Tue, ...)
	///   * %W - message date/time full weekday (Monday, Tuesday, ...)
	///   * %b - message date/time abbreviated month (Jan, Feb, ...)
	///   * %B - message date/time full month (January, February, ...)
	///   * %d - message date/time zero-padded day of month (01 .. 31)
	///   * %e - message date/time day of month (1 .. 31)
	///   * %f - message date/time space-padded day of month ( 1 .. 31)
	///   * %m - message date/time zero-padded month (01 .. 12)
	///   * %n - message date/time month (1 .. 12)
	///   * %o - message date/time space-padded month ( 1 .. 12)
	///   * %y - message date/time year without century (70)
	///   * %Y - message date/time year with century (1970)
	///   * %H - message date/time hour (00 .. 23)
	///   * %h - message date/time hour (00 .. 12)
	///   * %a - message date/time am/pm
	///   * %A - message date/time AM/PM
	///   * %M - message date/time minute (00 .. 59)
	///   * %S - message date/time second (00 .. 59)
	///   * %i - message date/time millisecond (000 .. 999)
	///   * %c - message date/time centisecond (0 .. 9)
	///   * %[name] - the value of the message parameter with the given name
	///   * %% - percent sign

{
public:
	PatternFormatter();
		/// Creates a PatternFormatter.
		/// The format pattern must be specified with
		/// a call to setProperty.

	PatternFormatter(const std::string& format);
		/// Creates a PatternFormatter that uses the
		/// given format pattern.

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

	void format(const Message& msg, std::string& text);
		/// Formats the message according to the specified
		/// format pattern and places the result in text. 
		
	void setProperty(const std::string& name, const std::string& value);
		/// Sets the property with the given name to the given value.
		///
		/// The following properties are supported:
		/// 
		///     * pattern: The format pattern. See the PatternFormatter class
		///       for details.
		///     * times: Specifies whether times are adjusted for local time
		///       or taken as they are in UTC. Supported values are "local" and "UTC".
		///
		/// If any other property name is given, a PropertyNotSupported
		/// exception is thrown.

	std::string getProperty(const std::string& name) const;
		/// Returns the value of the property with the given name or
		/// throws a PropertyNotSupported exception if the given
		/// name is not recognized.

	static const std::string PROP_PATTERN;
	static const std::string PROP_TIMES;

protected:
	static const std::string& getPriorityName(int);
		/// Returns a string for the given priority value.
		
private:
	bool        _localTime;
	std::string _pattern;
};


Foundation_END


#endif // Foundation_PatternFormatter_INCLUDED