text: //
  // PatternFormatter.cpp
  //
  // $Id: //poco/1.4/Foundation/src/PatternFormatter.cpp#1 $
  //
  // Library: Foundation
  // Package: Logging
  // Module:  PatternFormatter
  //
  // Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
  // and Contributors.
  //
  // Permission is hereby granted, free of charge, to any person or organization
  // obtaining a copy of the software and accompanying documentation covered by
  // this license (the "Software") to use, reproduce, display, distribute,
  // execute, and transmit the Software, and to prepare derivative works of the
  // Software, and to permit third-parties to whom the Software is furnished to
  // do so, all subject to the following:
  // 
  // The copyright notices in the Software and this entire statement, including
  // the above license grant, this restriction and the following disclaimer,
  // must be included in all copies of the Software, in whole or in part, and
  // all derivative works of the Software, unless such copies or derivative
  // works are solely in the form of machine-executable object code generated by
  // a source language processor.
  // 
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
  // SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
  // FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
  // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  // DEALINGS IN THE SOFTWARE.
  //
  
  
  #include "Poco/PatternFormatter.h"
  #include "Poco/Message.h"
  #include "Poco/NumberFormatter.h"
  #include "Poco/DateTimeFormat.h"
  #include "Poco/DateTimeFormatter.h"
  #include "Poco/DateTime.h"
  #include "Poco/Timestamp.h"
  #include "Poco/Timezone.h"
  #include "Poco/Environment.h"
  
  
  namespace Poco {
  
  
  const std::string PatternFormatter::PROP_PATTERN = "pattern";
  const std::string PatternFormatter::PROP_TIMES   = "times";
  
  
  PatternFormatter::PatternFormatter():
  	_localTime(false)
  {
  }
  
  
  PatternFormatter::PatternFormatter(const std::string& format):
  	_localTime(false),
  	_pattern(format)
  {
  }
  
  
  PatternFormatter::~PatternFormatter()
  {
  }
  
  void PatternFormatter::format(const Message& msg, std::string& text)
  {
  	Timestamp timestamp = msg.getTime();
  	if (_localTime)
  	{
  		timestamp += Timezone::utcOffset()*Timestamp::resolution();
  		timestamp += Timezone::dst()*Timestamp::resolution();
  	}
  	DateTime dateTime = timestamp;
  	std::string::const_iterator it  = _pattern.begin();
  	std::string::const_iterator end = _pattern.end();
  	while (it != end)
  	{
  		if (*it == '%')
  		{
  			if (++it != end)
  			{
  				switch (*it)
  				{
  				case 's': text.append(msg.getSource()); break;
  				case 't': text.append(msg.getText()); break;
  				case 'l': NumberFormatter::append(text, (int) msg.getPriority()); break;
  				case 'p': text.append(getPriorityName((int) msg.getPriority())); break;
  				case 'q': text += getPriorityName((int) msg.getPriority()).at(0); break;
  				case 'P': NumberFormatter::append(text, msg.getPid()); break;
  				case 'T': text.append(msg.getThread()); break;
  				case 'I': NumberFormatter::append(text, msg.getTid()); break;
  				case 'N': text.append(Environment::nodeName()); break;
  				case 'U': text.append(msg.getSourceFile() ? msg.getSourceFile() : ""); break;
  				case 'u': NumberFormatter::append(text, msg.getSourceLine()); break;
  				case 'w': text.append(DateTimeFormat::WEEKDAY_NAMES[dateTime.dayOfWeek()], 0, 3); break;
  				case 'W': text.append(DateTimeFormat::WEEKDAY_NAMES[dateTime.dayOfWeek()]); break;
  				case 'b': text.append(DateTimeFormat::MONTH_NAMES[dateTime.month() - 1], 0, 3); break;
  				case 'B': text.append(DateTimeFormat::MONTH_NAMES[dateTime.month() - 1]); break;
  				case 'd': NumberFormatter::append0(text, dateTime.day(), 2); break;
  				case 'e': NumberFormatter::append(text, dateTime.day()); break;
  				case 'f': NumberFormatter::append(text, dateTime.day(), 2); break;
   				// add support for '%G', which is epoch time in milliseconds
   				case 'G': NumberFormatter::append(text, (Int64)dateTime.timestamp().epochTime()*1000); break;
  				case 'm': NumberFormatter::append0(text, dateTime.month(), 2); break;
  				case 'n': NumberFormatter::append(text, dateTime.month()); break;
  				case 'o': NumberFormatter::append(text, dateTime.month(), 2); break;
  				case 'y': NumberFormatter::append0(text, dateTime.year() % 100, 2); break;
  				case 'Y': NumberFormatter::append0(text, dateTime.year(), 4); break;
  				case 'H': NumberFormatter::append0(text, dateTime.hour(), 2); break;
  				case 'h': NumberFormatter::append0(text, dateTime.hourAMPM(), 2); break;
  				case 'a': text.append(dateTime.isAM() ? "am" : "pm"); break;
  				case 'A': text.append(dateTime.isAM() ? "AM" : "PM"); break;
  				case 'M': NumberFormatter::append0(text, dateTime.minute(), 2); break;
  				case 'S': NumberFormatter::append0(text, dateTime.second(), 2); break;
  				case 'i': NumberFormatter::append0(text, dateTime.millisecond(), 3); break;
  				case 'c': NumberFormatter::append(text, dateTime.millisecond()/100); break;
  				case 'F': NumberFormatter::append0(text, dateTime.millisecond()*1000 + dateTime.microsecond(), 6); break;
  				case 'z': text.append(DateTimeFormatter::tzdISO(_localTime ? Timezone::tzd() : DateTimeFormatter::UTC)); break;
  				case 'Z': text.append(DateTimeFormatter::tzdRFC(_localTime ? Timezone::tzd() : DateTimeFormatter::UTC)); break;
  				case '[':
  				{
  					++it;
  					std::string prop;
  					while (it != end && *it != ']') prop += *it++;
  					if (it == end) --it;
  					try
  					{
  						text.append(msg[prop]);
  					}
  					catch (...)
  					{
  					}
  					break;
  				}
  				default: text += *it;
  				}
  				++it;
  			}
  		}
  		else text += *it++;
  	}
  }
  
  	
  void PatternFormatter::setProperty(const std::string& name, const std::string& value)
  {
  	if (name == PROP_PATTERN)
  		_pattern = value;
  	else if (name == PROP_TIMES)
  		_localTime = (value == "local");
  	else 
  		Formatter::setProperty(name, value);
  }
  
  
  std::string PatternFormatter::getProperty(const std::string& name) const
  {
  	if (name == PROP_PATTERN)
  		return _pattern;
  	else if (name == PROP_TIMES)
  		return _localTime ? "local" : "UTC";
  	else
  		return Formatter::getProperty(name);
  }
  
  
  namespace
  {
  	static std::string priorities[] = 
  	{
  		"",
  		"Fatal",
  		"Critical",
  		"Error",
  		"Warning",
  		"Notice",
  		"Information",
  		"Debug",
  		"Trace"
  	};
  }
  
  
  const std::string& PatternFormatter::getPriorityName(int prio)
  {
  	poco_assert (1 <= prio && prio <= 8);	
  	return priorities[prio];
  }
  
  
  } // namespace Poco
  