package jdk.jfr.internal.consumer;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.RandomAccessFile;

import java.nio.file.DirectoryStream;

import java.nio.file.Files;

import java.nio.file.Path;

// Protected by modular boundaries.

public abstract class FileAccess {

    public final static FileAccess PRIVILIGED = new UnPriviliged();

    // TODO: Should be changed Priviliged class

    public final static FileAccess UNPRIVILIGED = new UnPriviliged();

    abstract RandomAccessFile openRAF(File f, String mode) throws FileNotFoundException;

    abstract DirectoryStream<Path> newDirectoryStream(Path repository) throws IOException;

    static class Priviliged extends FileAccess {

        @Override

        RandomAccessFile openRAF(File f, String mode) {

            // TDOO: Implement

            return null;

        }

        @Override

        protected DirectoryStream<Path> newDirectoryStream(Path repository) {

            // TDOO: Implement

            return null;

        }

    }

    static class UnPriviliged extends FileAccess {

        @Override

        RandomAccessFile openRAF(File f, String mode) throws FileNotFoundException {

            return new RandomAccessFile(f, mode);

        }

        @Override

        DirectoryStream<Path> newDirectoryStream(Path dir) throws IOException {

            return Files.newDirectoryStream(dir);

        }

    }

}