/**
* Relational pipes
* Copyright © 2022 František Kučera (Frantovo.cz, GlobalCode.info)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <vector>
#include <relpipe/common/type/typedefs.h>
#include <relpipe/cli/CLI.h>
#include <relpipe/cli/RelpipeCLIException.h>
#include "Configuration.h"
namespace relpipe {
namespace tr {
namespace http {
class CLIParser {
private:
relpipe::common::type::StringX readNext(std::vector<relpipe::common::type::StringX> arguments, int& i) {
if (i < arguments.size()) return arguments[i++];
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);
}
/**
* TODO: use a common method
*/
bool parseBoolean(const relpipe::common::type::StringX& value) {
if (value == L"true") return true;
else if (value == L"false") return false;
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);
}
void addRelation(Configuration& c, RelationConfiguration& currentRelation) {
if (currentRelation.relation.size()) {
c.relationConfigurations.push_back(currentRelation);
currentRelation = RelationConfiguration();
}
}
/**
* TODO: use a common method
*/
relpipe::writer::TypeId parseTypeId(const relpipe::common::type::StringX& value) {
using t = relpipe::writer::TypeId;
if (value == L"string") return t::STRING;
else if (value == L"integer") return t::INTEGER;
else if (value == L"boolean") return t::BOOLEAN;
else throw relpipe::cli::RelpipeCLIException(L"Unable to parse TypeId: " + value, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
}
public:
static const relpipe::common::type::StringX OPTION_NAMESPACE;
static const relpipe::common::type::StringX OPTION_RELATION;
static const relpipe::common::type::StringX OPTION_WHERE;
static const relpipe::common::type::StringX OPTION_INPUT_ATTRIBUTES;
static const relpipe::common::type::StringX OPTION_OUTPUT_ATTRIBUTE;
static const relpipe::common::type::StringX OPTION_XML_ATTRIBUTE;
Configuration parse(const std::vector<relpipe::common::type::StringX>& arguments) {
Configuration c;
RelationConfiguration currentRelation;
for (int i = 0; i < arguments.size();) {
relpipe::common::type::StringX option = readNext(arguments, i);
if (option == OPTION_NAMESPACE) {
c.namespaceMappings.push_back(readNext(arguments, i));
c.namespaceMappings.push_back(readNext(arguments, i));
} else if (option == OPTION_RELATION) {
addRelation(c, currentRelation); // previous relation
currentRelation.relation = readNext(arguments, i);
} else if (option == OPTION_WHERE) {
currentRelation.where = readNext(arguments, i);
} else if (option == OPTION_XML_ATTRIBUTE) {
currentRelation.xmlAttributes.push_back(readNext(arguments, i));
} else if (option == OPTION_OUTPUT_ATTRIBUTE) {
AttributeRecipe attribute;
attribute.name = readNext(arguments, i);
attribute.type = parseTypeId(readNext(arguments, i));
attribute.http = readNext(arguments, i);
currentRelation.outputAttributes.push_back(attribute);
} else if (option == OPTION_INPUT_ATTRIBUTES) {
relpipe::common::type::StringX policyName = readNext(arguments, i);
InputAttributePolicy policy;
if (policyName == L"append") policy = InputAttributePolicy::Append;
else if (policyName == L"prepend") policy = InputAttributePolicy::Prepend;
else if (policyName == L"auto") policy = InputAttributePolicy::Auto;
else throw relpipe::cli::RelpipeCLIException(L"Unsupported input attributes policy: " + policyName, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
currentRelation.inputAttributePolicy = policy;
} else throw relpipe::cli::RelpipeCLIException(L"Unsupported CLI option: " + option, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
}
addRelation(c, currentRelation); // last relation
return c;
}
virtual ~CLIParser() {
}
};
const relpipe::common::type::StringX CLIParser::OPTION_NAMESPACE = L"--namespace";
const relpipe::common::type::StringX CLIParser::OPTION_RELATION = L"--relation";
const relpipe::common::type::StringX CLIParser::OPTION_WHERE = L"--where";
const relpipe::common::type::StringX CLIParser::OPTION_INPUT_ATTRIBUTES = L"--input-attributes";
const relpipe::common::type::StringX CLIParser::OPTION_OUTPUT_ATTRIBUTE = L"--output-attribute";
const relpipe::common::type::StringX CLIParser::OPTION_XML_ATTRIBUTE = L"--xml-attribute";
}
}
}