Java File Read via ByteBuffer readEntireFile(java.io.File file)

Description

read Entire File

License

Open Source License

Declaration

public static java.nio.ByteBuffer readEntireFile(java.io.File file)
            throws java.io.IOException 

Method Source Code

//package com.java2s;
import java.io.*;

import java.nio.channels.FileChannel;

public class Main {
    public static java.nio.ByteBuffer readEntireFile(java.io.File file)
            throws java.io.IOException {
        return readFileToBuffer(file);
        //        return memoryMapFile(file);
        //        return readFile(file);
    }/*from  ww  w  . jav a 2  s . c  o  m*/

    private static java.nio.ByteBuffer readFileToBuffer(java.io.File file)
            throws IOException {
        FileInputStream is = new FileInputStream(file);
        try {
            FileChannel fc = is.getChannel();
            java.nio.ByteBuffer buffer = java.nio.ByteBuffer
                    .allocate((int) fc.size());
            for (int count = 0; count >= 0 && buffer.hasRemaining();) {
                count = fc.read(buffer);
            }
            buffer.flip();
            return buffer;
        } finally {
            is.close();
        }
    }
}

Related

1. readDelimitedFromInputStream(InputStream inputStream)
2. readDouble(BufferedReader br, double[] buf)
3. readDouble(byte[] src, int pointer)
4. readDouble(FileChannel fileChannel, ByteOrder byteOrder)
5. readDouble(final byte[] bytes, final int length, final int offset)
6. readerToString(Reader reader)
7. readFC(String fname, int length)
8. readFile(File file)
9. readFile(File file)