do not stop at null byte 0x00; replace them with configurable string (default '^@')
/**
* Relational pipes
* Copyright © 2018 František Kučera (Frantovo.cz, GlobalCode.info)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* 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 General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <memory>
#include <string>
#include <vector>
#include <iostream>
#include <sstream>
#include <locale>
#include <codecvt>
#include <relpipe/reader/typedefs.h>
#include <relpipe/reader/TypeId.h>
#include <relpipe/reader/handlers/RelationalReaderStringHandler.h>
#include <relpipe/reader/handlers/AttributeMetadata.h>
#include "Configuration.h"
namespace relpipe {
namespace out {
namespace nullbyte {
using namespace relpipe;
using namespace relpipe::reader;
using namespace relpipe::reader::handlers;
class NullByteHandler : public RelationalReaderStringHandler {
private:
std::ostream& output;
std::wstring_convert<std::codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings?
Configuration configuration;
std::string nullByteReplacement;
public:
NullByteHandler(Configuration configuration, std::ostream& output) : configuration(configuration), output(output), nullByteReplacement(convertor.to_bytes(configuration.nullByteReplacement)) {
}
void startRelation(string_t name, std::vector<AttributeMetadata> attributes) override {
}
void attribute(const string_t& value) override {
const std::string octets = convertor.to_bytes(value);
for (char ch : octets) {
if (ch) output.put(ch);
else output << nullByteReplacement;
}
output.put(0);
}
void endOfPipe() {
output.flush();
}
};
}
}
}