/**
* Relational pipes
* Copyright © 2021 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 <memory>
#include <string>
#include <vector>
#include <iostream>
#include <sstream>
#include <locale>
#include <codecvt>
#include <regex>
#include <relpipe/reader/typedefs.h>
#include <relpipe/reader/TypeId.h>
#include <relpipe/reader/handlers/RelationalReaderStringHandler.h>
#include <relpipe/reader/handlers/AttributeMetadata.h>
#include <relpipe/writer/Factory.h>
#include <relpipe/cli/RelpipeCLIException.h>
#include "Configuration.h"
namespace relpipe {
namespace tr {
namespace infertypes {
using namespace std;
using namespace relpipe;
using namespace relpipe::reader;
using namespace relpipe::reader::handlers;
class InferTypesHandler : public RelationalReaderStringHandler {
private:
shared_ptr<writer::RelationalWriter> relationalWriter;
Configuration configuration;
integer_t currentAttributeIndex = 0;
public:
InferTypesHandler(shared_ptr<writer::RelationalWriter> relationalWriter, Configuration configuration) : relationalWriter(relationalWriter), configuration(configuration) {
}
void startRelation(string_t name, vector<AttributeMetadata> attributes) override {
// TODO: move to a reusable method (or use same metadata on both reader and writer side?)
vector<writer::AttributeMetadata> writerMetadata;
for (AttributeMetadata readerMetadata : attributes) {
writerMetadata.push_back({readerMetadata.getAttributeName(), relationalWriter->toTypeId(readerMetadata.getTypeName())});
}
relationalWriter->startRelation(name, writerMetadata, true);
}
void attribute(const string_t& value) override {
relationalWriter->writeAttribute(value);
currentAttributeIndex++;
//currentAttributeIndex = currentAttributeIndex % currentRules.size();
}
void endOfPipe() {
}
};
}
}
}