DatabasePersistenceLog.java

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;
import java.util.List;

public class DatabasePersistenceLog {

    private String dbName;
    private Path filePath;

    public DatabasePersistenceLog(String dbName) throws IOException {
        this.dbName = dbName;
        this.filePath = Path.of("data", dbName + ".dblog");
        Files.createDirectories(filePath.getParent());
        Files.deleteIfExists(filePath);
        Files.createFile(filePath);
    }

    private void appendLine(String line) throws IOException {
        Files.writeString(filePath, line + System.lineSeparator(), StandardOpenOption.APPEND);
    }

    public void logDbCreate() throws IOException {
        appendLine("db create " + dbName);
        appendLine("db select " + dbName);
    }

    public void logTableCreate(String tableName, List<String> fieldArgs) throws IOException {
        appendLine("table create " + tableName + " " + String.join(" ", fieldArgs));
    }

    public void logTableSelect(String tableName) throws IOException {
        appendLine("table select " + tableName);
    }

    public void logTableDelete(String tableName) throws IOException {
        appendLine("table delete " + tableName);
    }

    public void logRowCreate(List<String> fieldValueArgs) throws IOException {
        appendLine("row create " + String.join(" ", fieldValueArgs));
    }

    public void logRowUpdate(List<String> updateArgs) throws IOException {
        appendLine("row update " + String.join(" ", updateArgs));
    }

    public void logRowDelete(List<String> deleteArgs) throws IOException {
        appendLine("row delete " + String.join(" ", deleteArgs));
    }

    public String getFilePath() {
        return filePath.toString();
    }
}