yats.git

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/**
 * Yats - yats
 *
 * This file is licensed under the Affero General Public License version 3 or
 * later. See the COPYING file.
 *
 * @author Paolo Lulli <kevwe.com>
 * @copyright Paolo Lulli 2024
 */

package db

import (
	"log"
	"os"
	"yats-server/model"

	"github.com/xitongsys/parquet-go/writer"
)

func EventToParquet(events []model.EventModel, parquetFile string) {
	var err error
	w, err := os.Create(parquetFile)
	if err != nil {
		log.Println("Can't create local file", err)
		return
	}

	pw, err := writer.NewParquetWriterFromWriter(w, new(model.EventModel), 4)
	if err != nil {
		log.Println("Can't create parquet writer", err)
		return
	}

	for i := range events {
		if err = pw.Write(events[i]); err != nil {
			log.Println("Write error", err)
		}
	}

	if err = pw.WriteStop(); err != nil {
		log.Println("WriteStop error", err)
		return
	}
	log.Println("Write Finished")
	w.Close()
}

func MetricToParquet(metrics []model.MetricModel, parquetFile string) {
	var err error

	w, err := os.Create(parquetFile)
	if err != nil {
		log.Println("Can't create local file", err)
		return
	}

	pw, err := writer.NewParquetWriterFromWriter(w, new(model.MetricModel), 4)
	if err != nil {
		log.Println("Can't create parquet writer", err)
		return
	}

	for i := range metrics {
		if err = pw.Write(metrics[i]); err != nil {
			log.Println("Write error", err)
		}
	}

	if err = pw.WriteStop(); err != nil {
		log.Println("WriteStop error", err)
		return
	}
	log.Println("Write Finished")
	w.Close()
}