author | František Kučera <franta-hg@frantovo.cz> |
Wed, 07 Oct 2020 16:42:37 +0200 | |
branch | v_0 |
changeset 31 | c22577615ce4 |
parent 30 | 3c6374467a82 |
child 38 | 2cc2d3f658f4 |
permissions | -rw-r--r-- |
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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 <vector> |
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#include <iostream> |
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#include <relpipe/reader/typedefs.h> |
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#include <relpipe/cli/CLI.h> |
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#include <relpipe/cli/RelpipeCLIException.h> |
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#include "Configuration.h" |
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namespace relpipe { |
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namespace out { |
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namespace tabular { |
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class CLIParser { |
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private: |
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relpipe::reader::string_t readNext(const std::vector<relpipe::reader::string_t>& arguments, int& i) { |
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if (i < arguments.size()) return arguments[i++]; |
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else throw relpipe::cli::RelpipeCLIException(L"Missing CLI argument" + (i > 0 ? (L" after " + arguments[i - 1]) : L""), relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS); |
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} |
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void addRelation(Configuration& c, RelationConfiguration& currentRelation) { |
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if (currentRelation.relation.size()) { |
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c.relationConfigurations.push_back(currentRelation); |
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} else { |
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// no relation name given → global configuration |
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c.writeTypes = currentRelation.writeTypes; |
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c.writeRelationName = currentRelation.writeRelationName; |
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c.writeRecordCount = currentRelation.writeRecordCount; |
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} |
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currentRelation = RelationConfiguration(); |
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} |
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/** |
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* TODO: use a common method |
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*/ |
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bool parseBoolean(const relpipe::reader::string_t& value) { |
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if (value == L"true") return true; |
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else if (value == L"false") return false; |
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else throw relpipe::cli::RelpipeCLIException(L"Unable to parse boolean value: " + value + L" (expecting true or false)", relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS); |
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} |
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public: |
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static const relpipe::reader::string_t OPTION_RELATION; |
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static const relpipe::reader::string_t OPTION_WRITE_TYPES; |
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static const relpipe::reader::string_t OPTION_WRITE_RELATION_NAME; |
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static const relpipe::reader::string_t OPTION_WRITE_RECORD_COUNT; |
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Configuration parse(const std::vector<relpipe::reader::string_t>& arguments) { |
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Configuration c; |
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RelationConfiguration currentRelation; |
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for (int i = 0; i < arguments.size();) { |
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relpipe::reader::string_t option = readNext(arguments, i); |
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if (option == OPTION_RELATION) { |
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addRelation(c, currentRelation); // previous relation |
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currentRelation.relation = readNext(arguments, i); |
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} else if (option == OPTION_WRITE_TYPES) { |
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currentRelation.writeTypes = parseBoolean(readNext(arguments, i)); |
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} else if (option == OPTION_WRITE_RELATION_NAME) { |
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currentRelation.writeRelationName = parseBoolean(readNext(arguments, i)); |
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} else if (option == OPTION_WRITE_RECORD_COUNT) { |
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currentRelation.writeRecordCount = parseBoolean(readNext(arguments, i)); |
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} else throw relpipe::cli::RelpipeCLIException(L"Unsupported CLI option: " + option, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS); |
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} |
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addRelation(c, currentRelation); // last relation |
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return c; |
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} |
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virtual ~CLIParser() { |
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} |
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}; |
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const relpipe::reader::string_t CLIParser::OPTION_RELATION = L"--relation"; |
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const relpipe::reader::string_t CLIParser::OPTION_WRITE_TYPES = L"--write-types"; |
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const relpipe::reader::string_t CLIParser::OPTION_WRITE_RELATION_NAME = L"--write-relation-name"; |
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const relpipe::reader::string_t CLIParser::OPTION_WRITE_RECORD_COUNT = L"--write-record-count"; |
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} |
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} |
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} |