src/types/BooleanDataTypeReader.h
author František Kučera <franta-hg@frantovo.cz>
Thu, 29 Nov 2018 22:30:12 +0100
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license: GNU GPLv3+
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/**
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 * Relational pipes
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 * Copyright © 2018 František Kučera (Frantovo.cz, GlobalCode.info)
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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 */
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#pragma once
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#include <string>
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#include <iostream>
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#include <relpipe/protocol/constants.h>
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#include "../../include/relpipe/reader/RelpipeReaderException.h"
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#include "../../include/relpipe/reader/typedefs.h"
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#include "../DataTypeReader.h"
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namespace relpipe {
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namespace reader {
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namespace types {
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using namespace relpipe::protocol;
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using namespace relpipe::reader;
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class BooleanDataTypeReader : public DataTypeReader<boolean_t> {
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private:
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	const string_t TRUE = L"true";
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	const string_t FALSE = L"false";
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public:
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	BooleanDataTypeReader() : DataTypeReader<boolean_t>(TypeId::BOOLEAN, DATA_TYPE_CODE_BOOLEAN) {
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	}
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	bool readValue(std::istream &input) override {
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		auto value = input.get(); // TODO: check failbit
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		if (value == 0) return false;
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		else if (value == 1) return true;
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		else throw RelpipeReaderException(L"Unable to convert the octet to boolean");
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	}
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	string_t toString(const boolean_t &value) override {
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		return value ? TRUE : FALSE;
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	}
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};
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}
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}
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}