package zip;

import java.io.BufferedInputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.InputStream;

import java.util.zip.ZipEntry;

import java.util.zip.ZipOutputStream;

// Used to zip a file

public class FileZipper {

    private static final int BUFFER = 512;

    public boolean compressFilesToZip(String[] files,String zipfile) {

        return rugularZip(files,zipfile);

    }

    private boolean rugularZip(String[] fromFiles,String toFile) {

        File zipFile=new File(toFile);

        byte[] buffer=new byte[BUFFER];

        int readLen=0;

        try {

            ZipOutputStream zipOut=new ZipOutputStream(new FileOutputStream(zipFile)) ;

            int index=0;

            for(String file:fromFiles) {

                File fileWillZip=new File(file);

                if(fileWillZip.exists()) {

                    InputStream inputStream=new BufferedInputStream(new FileInputStream(fileWillZip));

                    String entryName="#"+index+"_"+fileWillZip.getName();// entryName should be a valid filename,no path seperater allowed

                    zipOut.putNextEntry(new ZipEntry(entryName));

                    while((readLen=inputStream.read(buffer,0,BUFFER))!=-1) {

                        zipOut.write(buffer,0,readLen);

                    }

                    inputStream.close();    

                    index++;

                }

            }

            zipOut.close();

        }catch(Exception e) {

            e.printStackTrace();

            return false;

        }

        return true;

    }

    public static void main(String[] args) {

        String[] files= {"D:\\wallpaper\\5760666873360998521.jpg",

                         "D:\\wallpaper\\luda1.jpg",

                         "D:\\wallpaper\\luda2.jpg",

                         "D:\\wallpaper\\luda3.jpg",

                         "D:\\wallpaper\\luda4.jpg",

                         "D:\\wallpaper\\sheeps.jpg"};

        String zipfile="D:\\wallpaper\\result.zip";

        FileZipper fz=new FileZipper();

        fz.compressFilesToZip(files, zipfile);

    }

}