src/types/BooleanDataTypeReader.h
author František Kučera <franta-hg@frantovo.cz>
Thu, 29 Nov 2018 22:30:12 +0100
branchv_0
changeset 29 755978b0935c
parent 14 e8de089f95dd
child 30 ef99f5a6c9f6
permissions -rw-r--r--
license: GNU GPLv3+

/**
 * 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, either version 3 of the License, or
 * (at your option) 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 General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
#pragma once

#include <string>
#include <iostream>

#include <relpipe/protocol/constants.h>

#include "../../include/relpipe/reader/RelpipeReaderException.h"
#include "../../include/relpipe/reader/typedefs.h"
#include "../DataTypeReader.h"

namespace relpipe {
namespace reader {
namespace types {

using namespace relpipe::protocol;
using namespace relpipe::reader;

class BooleanDataTypeReader : public DataTypeReader<boolean_t> {
private:
	const string_t TRUE = L"true";
	const string_t FALSE = L"false";
public:

	BooleanDataTypeReader() : DataTypeReader<boolean_t>(TypeId::BOOLEAN, DATA_TYPE_CODE_BOOLEAN) {
	}

	bool readValue(std::istream &input) override {
		auto value = input.get(); // TODO: check failbit
		if (value == 0) return false;
		else if (value == 1) return true;
		else throw RelpipeReaderException(L"Unable to convert the octet to boolean");
	}

	string_t toString(const boolean_t &value) override {
		return value ? TRUE : FALSE;
	}

};

}
}
}