#pragma once
#include <string>
#include <sstream>
#include <iostream>
#include <vector>
#include <locale>
#include <codecvt>
#include "DataTypeWriter.h"
#include "format.h"
namespace relpipe {
namespace writer {
/**
* The prototype does not recognize any encoding,
* it just works with c++ strings in encoding default to given platform.
* In the real implementation of relational pipes, there will be DataTypes for particular encodings.
*/
class StringDataTypeWriter : public DataTypeWriter<string_t> {
private:
IntegerDataTypeWriter integerType;
std::wstring_convert<std::codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings.
public:
StringDataTypeWriter() : DataTypeWriter<string_t>(DATA_TYPE_ID_STRING, DATA_TYPE_CODE_STRING) {
}
void writeValue(std::ostream &output, const string_t &value) override {
std::string s = convertor.to_bytes(value);
integerType.writeValue(output, s.length());
output << s.c_str();
}
wstring toValue(const string_t &stringValue) override {
return stringValue;
}
};
}
}