Serialize and Deserialize Data

In this example, we are showing how to read data from a local CSV file into Records, serialize those records and finally, deserialize then print the output into the console.

Java Code

/*
 * Copyright (c) 2006-2022 North Concepts Inc.  All rights reserved.
 * Proprietary and Confidential.  Use is subject to license terms.
 * 
 * https://northconcepts.com/data-pipeline/licensing/
 */
package com.northconcepts.datapipeline.examples.cookbook;

import java.io.File;

import com.northconcepts.datapipeline.core.DataReader;
import com.northconcepts.datapipeline.core.DataWriter;
import com.northconcepts.datapipeline.core.StreamWriter;
import com.northconcepts.datapipeline.csv.CSVReader;
import com.northconcepts.datapipeline.file.FileReader;
import com.northconcepts.datapipeline.file.FileWriter;
import com.northconcepts.datapipeline.job.Job;

public class SerializeDeserializeData {

    public static void main(String[] args) {
        File csvFile = new File("example/data/input/credit-balance-01.csv");
        File binaryFile = new File("example/data/output/credit-balance-01.bin");
        
        DataReader reader;
        DataWriter writer;

        // Serialize records to binary file
        reader = new CSVReader(csvFile).setFieldNamesInFirstRow(true);
        writer = new FileWriter(binaryFile);
        Job.run(reader, writer);
        
        // Deserialize records from binary file
        reader = new FileReader(binaryFile);
        writer = new StreamWriter(System.out);
        Job.run(reader, writer);
        
    }

}

Code Walkthrough

1. A CSVReader is created to read from the local file credit-balance-01.csv.
2. The serialized records are written to a binary file credit-balance-01.bin using FileWriter.
3. This binary file is the read using a FileReader.
4. A StreamWriter is used to print the output to the console in human-readable format.