Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;

public class Main {
    private static byte[] getBytesFromFile(File file) {
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        DataOutputStream dataOutputStream = new DataOutputStream(byteArrayOutputStream);
        try {
            FileInputStream fileInputStream = null;
            try {
                fileInputStream = new FileInputStream(file);
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            }

            int maxBufferSize = 1024 * 1024;
            int bufferSize = (int) Math.min(file.getTotalSpace(), maxBufferSize);
            byte[] buffer = new byte[bufferSize];

            // read file and write it into form...
            int bytesRead = 0;

            if (fileInputStream != null) {
                bytesRead = fileInputStream.read(buffer, 0, bufferSize);
            }

            while (bytesRead > 0) {
                dataOutputStream.write(buffer, 0, bufferSize);
                int bytesAvailable = fileInputStream.available();
                bufferSize = Math.min(bytesAvailable, maxBufferSize);
                bytesRead = fileInputStream.read(buffer, 0, bufferSize);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        return byteArrayOutputStream.toByteArray();
    }
}