Logo Search packages:      
Sourcecode: poco version File versions  Download package

AbstractConfiguration.cpp

//
// AbstractConfiguration.cpp
//
// $Id: //poco/1.2/Util/src/AbstractConfiguration.cpp#1 $
//
// Library: Util
// Package: Configuration
// Module:  AbstractConfiguration
//
// 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/Util/AbstractConfiguration.h"
#include "Poco/Util/ConfigurationView.h"
#include "Poco/Exception.h"
#include "Poco/NumberParser.h"
#include "Poco/NumberFormatter.h"
#include "Poco/String.h"


using Poco::FastMutex;
using Poco::NotFoundException;
using Poco::SyntaxException;
using Poco::CircularReferenceException;
using Poco::NumberParser;
using Poco::NumberFormatter;
using Poco::icompare;


namespace Poco {
namespace Util {


AbstractConfiguration::AbstractConfiguration(): _depth(0)
{
}


AbstractConfiguration::~AbstractConfiguration()
{
}


00068 bool AbstractConfiguration::hasProperty(const std::string& key) const
{
      FastMutex::ScopedLock lock(_mutex);

      std::string value;
      return getRaw(key, value);
}


00077 bool AbstractConfiguration::hasOption(const std::string& key) const
{
      return hasProperty(key);
}

      
00083 std::string AbstractConfiguration::getString(const std::string& key) const
{
      FastMutex::ScopedLock lock(_mutex);

      std::string value;
      if (getRaw(key, value))
            return internalExpand(value);
      else
            throw NotFoundException(key);
}

      
00095 std::string AbstractConfiguration::getString(const std::string& key, const std::string& defaultValue) const
{
      FastMutex::ScopedLock lock(_mutex);

      std::string value;
      if (getRaw(key, value))
            return internalExpand(value);
      else
            return defaultValue;
}


00107 std::string AbstractConfiguration::getRawString(const std::string& key) const
{
      FastMutex::ScopedLock lock(_mutex);

      std::string value;
      if (getRaw(key, value))
            return value;
      else
            throw NotFoundException(key);
}

      
00119 std::string AbstractConfiguration::getRawString(const std::string& key, const std::string& defaultValue) const
{
      FastMutex::ScopedLock lock(_mutex);

      std::string value;
      if (getRaw(key, value))
            return value;
      else
            return defaultValue;
}

      
00131 int AbstractConfiguration::getInt(const std::string& key) const
{
      FastMutex::ScopedLock lock(_mutex);

      std::string value;
      if (getRaw(key, value))
            return parseInt(internalExpand(value));
      else
            throw NotFoundException(key);
}

      
00143 int AbstractConfiguration::getInt(const std::string& key, int defaultValue) const
{
      FastMutex::ScopedLock lock(_mutex);

      std::string value;
      if (getRaw(key, value))
            return parseInt(internalExpand(value));
      else
            return defaultValue;
}


00155 double AbstractConfiguration::getDouble(const std::string& key) const
{
      FastMutex::ScopedLock lock(_mutex);

      std::string value;
      if (getRaw(key, value))
            return NumberParser::parseFloat(internalExpand(value));
      else
            throw NotFoundException(key);
}

      
00167 double AbstractConfiguration::getDouble(const std::string& key, double defaultValue) const
{
      FastMutex::ScopedLock lock(_mutex);

      std::string value;
      if (getRaw(key, value))
            return NumberParser::parseFloat(internalExpand(value));
      else
            return defaultValue;
}


00179 bool AbstractConfiguration::getBool(const std::string& key) const
{
      FastMutex::ScopedLock lock(_mutex);

      std::string value;
      if (getRaw(key, value))
            return parseBool(internalExpand(value));
      else
            throw NotFoundException(key);
}


00191 bool AbstractConfiguration::getBool(const std::string& key, bool defaultValue) const
{
      FastMutex::ScopedLock lock(_mutex);

      std::string value;
      if (getRaw(key, value))
            return parseBool(internalExpand(value));
      else
            return defaultValue;
}


00203 void AbstractConfiguration::setString(const std::string& key, const std::string& value)
{
      FastMutex::ScopedLock lock(_mutex);

      setRaw(key, value);
}

      
00211 void AbstractConfiguration::setInt(const std::string& key, int value)
{
      FastMutex::ScopedLock lock(_mutex);

      setRaw(key, NumberFormatter::format(value));
}


00219 void AbstractConfiguration::setDouble(const std::string& key, double value)
{
      FastMutex::ScopedLock lock(_mutex);

      setRaw(key, NumberFormatter::format(value));
}


00227 void AbstractConfiguration::setBool(const std::string& key, bool value)
{
      FastMutex::ScopedLock lock(_mutex);

      setRaw(key, value ? "true" : "false");
}


00235 void AbstractConfiguration::keys(Keys& range) const
{
      FastMutex::ScopedLock lock(_mutex);

      std::string key;
      range.clear();
      enumerate(key, range);
}


00245 void AbstractConfiguration::keys(const std::string& key, Keys& range) const
{
      FastMutex::ScopedLock lock(_mutex);

      range.clear();
      enumerate(key, range);
}


00254 const AbstractConfiguration* AbstractConfiguration::createView(const std::string& prefix) const
{
      return new ConfigurationView(prefix, const_cast<AbstractConfiguration*>(this));
}


00260 AbstractConfiguration* AbstractConfiguration::createView(const std::string& prefix)
{
      return new ConfigurationView(prefix, this);
}


namespace
{
      class AutoCounter
      {
      public:
            AutoCounter(int& count): _count(count)
            {
                  ++_count;
            }
            
            ~AutoCounter()
            {
                  --_count;
            }
            
      private:
            int& _count;
      };
}


00287 std::string AbstractConfiguration::expand(const std::string& value) const
{
      FastMutex::ScopedLock lock(_mutex);

      return internalExpand(value);
}


std::string AbstractConfiguration::internalExpand(const std::string& value) const
{
      AutoCounter counter(_depth);
      if (_depth > 10) throw CircularReferenceException("Too many property references encountered");
      return uncheckedExpand(value);
}


std::string AbstractConfiguration::uncheckedExpand(const std::string& value) const
{
      std::string result;
      std::string::const_iterator it  = value.begin();
      std::string::const_iterator end = value.end();
      while (it != end)
      {
            if (*it == '$')
            {
                  ++it;
                  if (it != end && *it == '{')
                  {
                        ++it;
                        std::string prop;
                        while (it != end && *it != '}') prop += *it++;
                        if (it != end) ++it;
                        std::string value;
                        if (getRaw(prop, value))
                        {
                              result.append(internalExpand(value));
                        }
                        else
                        {
                              result.append("${");
                              result.append(prop);
                              result.append("}");
                        }
                  }
                  else result += *it++;
            }
            else result += *it++;
      }
      return result;
}


00339 int AbstractConfiguration::parseInt(const std::string& value)
{
      if (value.compare(0, 2, "0x") == 0)
            return NumberParser::parseHex(value.substr(2));
      else
            return NumberParser::parse(value);
}


bool AbstractConfiguration::parseBool(const std::string& value)
{
      int n;
      if (NumberParser::tryParse(value, n))
            return n != 0;
      else if (icompare(value, "true") == 0)
            return true;
      else if (icompare(value, "yes") == 0)
            return true;
      else if (icompare(value, "on") == 0)
            return true;
      else if (icompare(value, "false") == 0)
            return false;
      else if (icompare(value, "no") == 0)
            return false;
      else if (icompare(value, "off") == 0)
            return false;
      else 
            throw SyntaxException("Cannot convert to boolean", value);
}


} } // namespace Poco::Util

Generated by  Doxygen 1.6.0   Back to index