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1 /** |
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2 * Relational pipes |
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3 * Copyright © 2021 František Kučera (Frantovo.cz, GlobalCode.info) |
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4 * |
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5 * This program is free software: you can redistribute it and/or modify |
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6 * it under the terms of the GNU General Public License as published by |
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7 * the Free Software Foundation, version 3 of the License. |
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8 * |
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9 * This program is distributed in the hope that it will be useful, |
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 * GNU General Public License for more details. |
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13 * |
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14 * You should have received a copy of the GNU General Public License |
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15 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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16 */ |
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17 #pragma once |
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18 |
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19 #include <regex> |
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20 #include <locale> |
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21 |
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22 #include <relpipe/common/type/typedefs.h> |
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23 |
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24 #include "Mode.h" |
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25 |
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26 namespace relpipe { |
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27 namespace tr { |
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28 namespace infertypes { |
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29 |
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30 class MetadataMode : public Mode { |
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31 private: |
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32 static std::wregex pattern; |
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33 public: |
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34 |
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35 MetadataMode(shared_ptr<writer::RelationalWriter> relationalWriter) : Mode(relationalWriter) { |
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36 } |
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37 |
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38 static bool willInfer(std::vector<relpipe::reader::handlers::AttributeMetadata> attributes) { |
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39 for (relpipe::reader::handlers::AttributeMetadata a : attributes) if (!std::regex_match(a.getAttributeName(), pattern)) return false; |
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40 return true; |
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41 } |
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42 |
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43 void startRelation(relpipe::common::type::StringX name, std::vector<relpipe::reader::handlers::AttributeMetadata> attributes) override { |
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44 // TODO: share this code through relpipe-lib-infertypes (when available) |
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45 } |
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46 |
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47 void attribute(const relpipe::common::type::StringX& value) override { |
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48 relationalWriter->writeAttribute(value); |
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49 } |
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50 }; |
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51 |
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52 std::wregex MetadataMode::pattern = std::wregex(L"(.*)::(.*)"); |
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53 |
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54 } |
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55 } |
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56 } |