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PatternFormatter.cpp
//
// PatternFormatter.cpp
//
// $Id: //poco/1.3/Foundation/src/PatternFormatter.cpp#5 $
//
// 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/DateTimeFormat.h"
#include "Poco/DateTimeFormatter.h"
#include "Poco/DateTime.h"
#include "Poco/Timestamp.h"
#include "Poco/Timezone.h"
#include "Poco/Environment.h"
#include <cstdio>
#include <cctype>


namespace Poco {


const std::string PatternFormatter::PROP_PATTERN = "pattern";
const std::string PatternFormatter::PROP_TIMES   = "times";


PatternFormatter::PatternFormatter():
      _localTime(false)
{
}


00062 PatternFormatter::PatternFormatter(const std::string& format):
      _localTime(false),
      _pattern(format)
{
}


00069 PatternFormatter::~PatternFormatter()
{
}


00074 inline void PatternFormatter::fmt(std::string& str, int value)
{
      char buffer[64];
      std::sprintf(buffer, "%d", value);
      str.append(buffer);
}


inline void PatternFormatter::fmt(std::string& str, int value, int width)
{
      char buffer[64];
      std::sprintf(buffer, "%*d", width, value);
      str.append(buffer);
}


inline void PatternFormatter::fmt0(std::string& str, int value, int width)
{
      char buffer[64];
      std::sprintf(buffer, "%0*d", width, value);
      str.append(buffer);
}


00098 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': fmt(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': fmt(text, msg.getPid()); break;
                        case 'T': text.append(msg.getThread()); break;
                        case 'I': fmt(text, msg.getTid()); break;
                        case 'N': text.append(Environment::nodeName()); 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': fmt0(text, dateTime.day(), 2); break;
                        case 'e': fmt(text, dateTime.day()); break;
                        case 'f': fmt(text, dateTime.day(), 2); break;
                        case 'm': fmt0(text, dateTime.month(), 2); break;
                        case 'n': fmt(text, dateTime.month()); break;
                        case 'o': fmt(text, dateTime.month(), 2); break;
                        case 'y': fmt0(text, dateTime.year() % 100, 2); break;
                        case 'Y': fmt0(text, dateTime.year(), 4); break;
                        case 'H': fmt0(text, dateTime.hour(), 2); break;
                        case 'h': fmt0(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': fmt0(text, dateTime.minute(), 2); break;
                        case 'S': fmt0(text, dateTime.second(), 2); break;
                        case 'i': fmt0(text, dateTime.millisecond(), 3); break;
                        case 'c': fmt(text, dateTime.millisecond()/100); break;
                        case 'F': fmt0(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++;
      }
}

      
00174 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);
}


00185 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);
}


const std::string& PatternFormatter::getPriorityName(int prio)
{
      static std::string priorities[] = 
      {
            "",
            "Fatal",
            "Critical",
            "Error",
            "Warning",
            "Notice",
            "Information",
            "Debug",
            "Trace"
      };

      poco_assert (1 <= prio && prio <= 8);     
      return priorities[prio];
}


} // namespace Poco

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