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/**
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* Relational pipes
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* Copyright © 2020 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, version 3 of the License.
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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 <memory>
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#include <string>
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#include <vector>
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#include <iostream>
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#include <sstream>
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#include <locale>
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#include <codecvt>
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#include <relpipe/common/type/typedefs.h>
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#include <relpipe/reader/TypeId.h>
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#include <relpipe/reader/handlers/RelationalReaderStringHandler.h>
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#include <relpipe/reader/handlers/AttributeMetadata.h>
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#include "Configuration.h"
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#include "INIWriter.h"
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namespace relpipe {
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namespace out {
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namespace ini {
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class INILiteralHandler : public relpipe::reader::handlers::RelationalReaderStringHandler {
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private:
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INIWriter& writer;
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relpipe::common::type::StringX sectionAttributeName;
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relpipe::common::type::StringX currentSection;
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std::vector<relpipe::reader::handlers::AttributeMetadata> currentAttributes;
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relpipe::common::type::Integer relationCount = 0;
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relpipe::common::type::Integer currentAttributeIndex = 0;
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public:
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INILiteralHandler(INIWriter& writer, relpipe::common::type::StringX sectionAttributeName = L"") : writer(writer), sectionAttributeName(sectionAttributeName) {
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}
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virtual ~INILiteralHandler() {
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}
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void startRelation(relpipe::common::type::StringX name, std::vector<relpipe::reader::handlers::AttributeMetadata> attributes) override {
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if (relationCount) writer.endSection();
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currentSection = name;
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currentAttributes = attributes;
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INIWriter::SectionStartEvent e;
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e.name = name;
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writer.startSection(e);
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relationCount++;
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}
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void attribute(const relpipe::common::type::StringX& value) override {
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if (currentAttributeIndex && currentAttributeIndex % currentAttributes.size() == 0) {
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currentAttributeIndex = 0;
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writer.endSection();
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// Usually there should be only one record in each relation.
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// But if there are more of them, we will rather create multiple sections with same name (makes more sense)
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// than duplicate keys in a single section.
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INIWriter::SectionStartEvent e;
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e.name = currentSection;
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writer.startSection(e);
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}
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INIWriter::EntryEvent e;
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e.key = currentAttributes[currentAttributeIndex].getAttributeName();
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e.value = value;
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writer.entry(e);
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currentAttributeIndex++;
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}
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void endOfPipe() {
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writer.endSection();
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}
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};
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}
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}
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}
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