Java File Content to Byte Array getFileContentAsBytes(String fileName)

Description

get File Content As Bytes

License

Open Source License

Declaration

static public byte[] getFileContentAsBytes(String fileName) throws Exception 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.BufferedInputStream;

import java.io.ByteArrayOutputStream;

import java.io.FileInputStream;

import java.io.IOException;
import java.io.InputStream;

public class Main {
    static public byte[] getFileContentAsBytes(String fileName) throws Exception {
        FileInputStream is = new FileInputStream(fileName);
        byte[] data = getStreamContentAsBytes(is);
        is.close();/*from   www. j a va2s .  c o  m*/
        return data;
    }

    static public byte[] getStreamContentAsBytes(InputStream is) throws IOException {
        BufferedInputStream buffer = new BufferedInputStream(is);
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        byte[] data = new byte[4912];
        int available = -1;
        while ((available = buffer.read(data)) > -1) {
            output.write(data, 0, available);
        }
        is.close();
        return output.toByteArray();
    }

    static public byte[] getStreamContentAsBytes(InputStream is, int maxRead) throws IOException {
        BufferedInputStream buffer = new BufferedInputStream(is);
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        byte[] data = new byte[4912];
        int available = -1, read = 0;
        while ((available = buffer.read(data)) > -1 && read < maxRead) {
            if (maxRead - read < available)
                available = maxRead - read;
            output.write(data, 0, available);
            read += available;
        }
        return output.toByteArray();
    }
}

Related

1. getFileContentAsByteArray(String fileName)
2. getFileContentAsByteArray(String fileName)
3. getFileContentAsBytes(String fileName)
4. getFileContentByte(InputStream inputStream, long offset, int length)
5. getFileContentsAsByteArray(String filename)