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config.cpp
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config.cpp
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// MIT License
// Copyright (c) 2019 G. Dan
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// 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 AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#include "config.h"
#include <string>
#include <vector>
#include <sstream>
#include <boost/filesystem.hpp>
#include <boost/filesystem/fstream.hpp>
#include <boost/algorithm/string/trim.hpp>
#include <boost/algorithm/string/split.hpp>
#include "logger.h"
using namespace std;
namespace mutlib
{
/**
* @brief read nME VALUE Pirs from config file, store in assoc container
*
* use # to comment line out
*
* @param a_strConfigFileName path to config
* @return true if file config file is opened, else false
*/
bool config::read( std::string a_strConfigFileName )
{
//config_t m_mapConfig;
boost::filesystem::path pthConfig( a_strConfigFileName );
if( boost::filesystem::exists( pthConfig ) )
{
boost::filesystem::ifstream inConfig;
inConfig.open( pthConfig );
string strLine;
while( inConfig )
{
std::getline( inConfig, strLine );
if( strLine.length() == 0 )
{
continue;
}
if( strLine[0] == '#' )
{
continue;
}
boost::algorithm::trim_left( strLine );
boost::algorithm::trim_right( strLine );
vector<string> vNameVal;
boost::algorithm::split( vNameVal, strLine, boost::is_any_of( "=" ) );
if( vNameVal.size() != 2 )
{
// log error
stringstream sstr;
sstr << "error: name value pair not found, usage: name=value, found " << strLine;
logger::error( sstr );
} else
{
auto it = m_mapConfig.find( vNameVal[0] );
if( it == m_mapConfig.end() )
{
// this config entry will be stored
stringstream sstr;
sstr << "ok: value stored " << strLine;
logger::info( sstr );
m_mapConfig[ vNameVal[0] ] = vNameVal[1]; // more efficient if you use existing iterator
} else
{
// log duplicate config entry, ignoring
stringstream sstr;
sstr << "name value pair duplicate " << strLine;
logger::warning( sstr );
}
}
}
return true;
}
return false;
}
bool config::get ( string a_strName, string& a_strValue )
{
auto iter = m_mapConfig.find( a_strName );
if( iter == m_mapConfig.end() )
{
return false;
}
a_strValue = iter->second;
return true;
}
}