author | František Kučera <franta-hg@frantovo.cz> |
Mon, 08 Apr 2019 13:37:23 +0200 | |
branch | v_0 |
changeset 14 | 9f152876156e |
parent 13 | f6440e0bda58 |
child 17 | cabd0f80a34b |
permissions | -rw-r--r-- |
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PassthroughHandler (string-based version)
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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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|
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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 <regex> |
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#include <relpipe/reader/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 <relpipe/writer/Factory.h> |
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namespace relpipe { |
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namespace tr { |
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namespace validator { |
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using namespace relpipe; |
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using namespace relpipe::reader; |
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using namespace relpipe::reader::handlers; |
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f6440e0bda58
fix typo: Hadler → Handler
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// TODO: use rather RelationalReaderValueHandler |
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class PassthroughHandler : public RelationalReaderStringHandler { |
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private: |
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std::shared_ptr<writer::RelationalWriter> relationalWriter; |
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public: |
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PassthroughHandler(std::ostream& output) { |
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relationalWriter.reset(writer::Factory::create(output)); |
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} |
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void startRelation(string_t name, std::vector<AttributeMetadata> attributes) override { |
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// TODO: move to a reusable method (or use same metadata on both reader and writer side?) |
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std::vector<writer::AttributeMetadata> writerMetadata; |
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for (AttributeMetadata readerMetadata : attributes) { |
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writerMetadata.push_back({readerMetadata.getAttributeName(), relationalWriter->toTypeId(readerMetadata.getTypeName())}); |
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} |
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relationalWriter->startRelation(name, writerMetadata, true); |
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} |
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void attribute(const string_t& value) override { |
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relationalWriter->writeAttribute(value); |
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} |
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void endOfPipe() { |
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} |
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}; |
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} |
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} |
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} |