1 /**

     2  * Relational pipes

     3  * Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)

     4  *

     5  * This program is free software: you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License as published by

     7  * the Free Software Foundation, either version 3 of the License, or

     8  * (at your option) any later version.

     9  *

    10  * This program is distributed in the hope that it will be useful,

    11  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

    13  * GNU General Public License for more details.

    14  *

    15  * You should have received a copy of the GNU General Public License

    16  * along with this program. If not, see <http://www.gnu.org/licenses/>.

    17  */

    18 #pragma once

    19 

    20 #include <vector>

    21 

    22 #include <relpipe/writer/typedefs.h>

    23 #include <relpipe/cli/CLI.h>

    24 #include <relpipe/cli/RelpipeCLIException.h>

    25 

    26 #include "Configuration.h"

    27 

    28 namespace relpipe {

    29 namespace in {

    30 namespace xmltable {

    31 

    32 class CLIParser {

    33 private:

    34 

    35 	string_t readNext(std::vector<string_t> arguments, int& i) {

    36 		if (i < arguments.size()) return arguments[i++];

    37 		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);

    38 	}

    39 

    40 	void addRelation(Configuration& c, RelationConfiguration& currentRelation) {

    41 		if (currentRelation.relation.size()) {

    42 			c.relationConfigurations.push_back(currentRelation);

    43 			currentRelation = RelationConfiguration();

    44 		}

    45 	}

    46 

    47 	relpipe::writer::TypeId parseTypeId(const string_t& value) {

    48 		using t = relpipe::writer::TypeId;

    49 		if (value == L"string") return t::STRING;

    50 		else if (value == L"integer") return t::INTEGER;

    51 		else if (value == L"boolean") return t::BOOLEAN;

    52 		else throw relpipe::cli::RelpipeCLIException(L"Unable to parse TypeId: " + value, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);

    53 	}

    54 

    55 public:

    56 

    57 	static const string_t OPTION_NAMESPACE;

    58 	static const string_t OPTION_RELATION;

    59 	static const string_t OPTION_RECORDS;

    60 	static const string_t OPTION_ATTRIBUTE;

    61 

    62 	Configuration parse(const std::vector<string_t>& arguments) {

    63 		Configuration c;

    64 		RelationConfiguration currentRelation;

    65 

    66 		for (int i = 0; i < arguments.size();) {

    67 			string_t option = readNext(arguments, i);

    68 

    69 			if (option == OPTION_NAMESPACE) {

    70 				c.namespaceMappings.push_back(readNext(arguments, i));

    71 				c.namespaceMappings.push_back(readNext(arguments, i));

    72 			} else if (option == OPTION_RELATION) {

    73 				addRelation(c, currentRelation); // previous relation

    74 				currentRelation.relation = readNext(arguments, i);

    75 			} else if (option == OPTION_RECORDS) {

    76 				currentRelation.xpath = readNext(arguments, i);

    77 			} else if (option == OPTION_ATTRIBUTE) {

    78 				AttributeRecipe attribute;

    79 				attribute.name = readNext(arguments, i);

    80 				attribute.type = parseTypeId(readNext(arguments, i));

    81 				attribute.xpath = readNext(arguments, i);

    82 				currentRelation.attributes.push_back(attribute);

    83 			} else throw relpipe::cli::RelpipeCLIException(L"Unsupported CLI option: " + option, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);

    84 		}

    85 		addRelation(c, currentRelation); // last relation

    86 

    87 		return c;

    88 	}

    89 

    90 	virtual ~CLIParser() {

    91 	}

    92 };

    93 

    94 const string_t CLIParser::OPTION_NAMESPACE = L"--namespace";

    95 const string_t CLIParser::OPTION_RELATION = L"--relation";

    96 const string_t CLIParser::OPTION_RECORDS = L"--records";

    97 const string_t CLIParser::OPTION_ATTRIBUTE = L"--attribute";

    98 

    99 }

   100 }

   101 }