osrm-backend/Util/IniFile.h
2013-08-09 20:16:26 +02:00

101 lines
3.2 KiB
C++

/*
open source routing machine
Copyright (C) Dennis Luxen, 2010
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU AFFERO General Public License as published by
the Free Software Foundation; either version 3 of the License, or
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
or see http://www.gnu.org/licenses/agpl.txt.
*/
#ifndef INI_FILE_H_
#define INI_FILE_H_
#include "OSRMException.h"
#include "../DataStructures/HashTable.h"
#include <boost/algorithm/string.hpp>
#include <boost/filesystem.hpp>
#include <boost/filesystem/fstream.hpp>
#include <exception>
#include <iostream>
#include <string>
class IniFile {
public:
IniFile(const char * config_filename) {
boost::filesystem::path config_file(config_filename);
if ( !boost::filesystem::exists( config_file ) ) {
std::string error = std::string(config_filename) + " not found";
throw OSRMException(error);
}
if ( 0 == boost::filesystem::file_size( config_file ) ) {
std::string error = std::string(config_filename) + " is empty";
throw OSRMException(error);
}
boost::filesystem::ifstream config( config_file );
std::string line;
if (config.is_open()) {
while ( config.good() ) {
getline (config,line);
std::vector<std::string> tokens;
Tokenize(line, tokens);
if(2 == tokens.size() ) {
parameters.insert(std::make_pair(tokens[0], tokens[1]));
}
}
config.close();
}
}
std::string GetParameter(const std::string & key){
return parameters.Find(key);
}
bool Holds(const std::string & key) const {
return parameters.Holds(key);
}
void SetParameter(const char* key, const char* value) {
SetParameter(std::string(key), std::string(value));
}
void SetParameter(const std::string & key, const std::string & value) {
parameters.insert(std::make_pair(key, value));
}
private:
void Tokenize(
const std::string& str,
std::vector<std::string>& tokens,
const std::string& delimiters = "="
) {
std::string::size_type lastPos = str.find_first_not_of(delimiters, 0);
std::string::size_type pos = str.find_first_of(delimiters, lastPos);
while (std::string::npos != pos || std::string::npos != lastPos) {
std::string temp = str.substr(lastPos, pos - lastPos);
boost::trim(temp);
tokens.push_back( temp );
lastPos = str.find_first_not_of(delimiters, pos);
pos = str.find_first_of(delimiters, lastPos);
}
}
HashTable<std::string, std::string> parameters;
};
#endif /* INI_FILE_H_ */