package io.NIO;

import io.Content;

import io.Helper;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.RandomAccessFile;

import java.nio.ByteBuffer;

import java.nio.channels.FileChannel;

public class NIOHelper extends Content implements Helper {

public String read() {

ByteBuffer buffer = ByteBuffer.allocate(1024);

RandomAccessFile accessFile = null;

StringBuilder stringBuilder = new StringBuilder();

try {

accessFile = new RandomAccessFile(DIR, "rw");

FileChannel inChannel = accessFile.getChannel();

int bytesRead = 0;

bytesRead = inChannel.read(buffer);

while (bytesRead != -1) {

System.out.println("bytesRead: " + bytesRead);

buffer.flip();

while (buffer.hasRemaining()) {

stringBuilder.append((char) buffer.get());

}

buffer.clear();

bytesRead = inChannel.read(buffer);

}

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

accessFile.close();

} catch (IOException e) {

e.printStackTrace();

}

}

return stringBuilder.toString();

}

public void write(String str) {

ByteBuffer buffer = ByteBuffer.allocate(1024);

FileOutputStream accessFile = null;

try {

accessFile = new FileOutputStream(DIR, true);

FileChannel inChannel = accessFile.getChannel();

str += "\n";

buffer.put(str.getBytes());

buffer.flip();

inChannel.write(buffer);

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

accessFile.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

}