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#include "Storage.h"
#include <iostream>
namespace uscxml {
Storage::Storage(const std::string& filename) {
_filename = filename;
// std::cout << _filename << std::endl;
std::fstream file;
file.open(_filename.c_str(), std::ios_base::in);
// read content into data
std::string key;
std::string value;
while(std::getline(file, key, '\0')) {
if(std::getline(file, value, '\0')) {
_data[key] = value;
}
}
file.close();
}
Storage::~Storage() {
std::fstream file;
file.open(_filename.c_str(), std::ios_base::out);
// file.clear();
std::map<std::string, std::string>::iterator dataIter = _data.begin();
while(dataIter != _data.end()) {
// include trailing \0
file.write(dataIter->first.c_str(), dataIter->first.length() + 1);
file.write(dataIter->second.c_str(), dataIter->second.length() + 1);
dataIter++;
}
// file.flush();
file.close();
}
unsigned long Storage::getLength() {
return _data.size();
}
std::string Storage::key(unsigned long index) {
if (index > getLength())
return "";
std::map<std::string, std::string>::iterator dataIter = _data.begin();
for (unsigned int i = 0; i < index; i++) {
dataIter++;
}
return dataIter->first;
}
std::string Storage::getItem(const std::string& key) {
if (_data.find(key) == _data.end())
return "";
return _data[key];
}
void Storage::setItem(const std::string& key, const std::string& value) {
_data[key] = value;
}
void Storage::removeItem(const std::string& key) {
if (_data.find(key) == _data.end())
return;
_data.erase(key);
}
void Storage::clear() {
_data.clear();
}
}
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