//*********************************************************************************
// class tig.zip
// Software released under the General Public License (version 2 or later), available at
// http://www.gnu.org/copyleft/gpl.html
//*********************************************************************************
package tig;

import tig.GeneralConstants;

import java.io.*;
import java.util.*;
import java.util.zip.*;

/******************************************************************
Contains methods used to zip and unzip a set of files.

Written from code found in "Thinking in java", 2nd edition.
@author Thierry Graff
@history dec xx 2001 creation.
@history apr 21 2002 integrated to tig package.

@todo 
*****************************************************************/
public abstract class Zip implements GeneralConstants{

/*
  public static void main(String[] args){
    try{
      //zipFiles("test.zip", args);
      unzipFile("test.zip", "unzippedFiles" + FS + "dest");
      String destDir = "C:\\Documents and Settings\\airbus\\Bureau\\doc Thierry\\tmp\\testSave\\unzipped\\desc";
      //unzipFile("test.zip", destDir);
    }
    catch(IOException ioe){
    }
  }
*/

  //**************** zipFiles ********************************
  /** Zips the input files to a single Zip archive. */
  public static void zipFiles(String outputFile, String[] inputFiles) throws IOException {
    ZipOutputStream out = new ZipOutputStream(new FileOutputStream(outputFile));
    BufferedReader in;
    int c;
    for(int i = 0; i < inputFiles.length; i++) {
      System.out.println("Writing file " + inputFiles[i]);
      in = new BufferedReader(new FileReader(inputFiles[i]));
      out.putNextEntry(new ZipEntry(inputFiles[i]));
      while((c = in.read()) != -1) out.write(c);
      in.close();
    }
    out.close();
  }

  //**************** unzipFiles ********************************
  /** Unzips the file to the destination directory. */
  public static void unzipFile(String zipFile, String destinationDir) throws IOException {
    File destDir = new File(destinationDir);
    destDir.mkdirs();
    ZipInputStream in = new ZipInputStream(new BufferedInputStream(new FileInputStream(zipFile)));
    ZipEntry ze;
    BufferedWriter out;
    int x;
    while((ze = in.getNextEntry()) != null) {
      System.out.println("Reading file " + ze);
      out = new BufferedWriter(new FileWriter(destinationDir + FS + ze.toString()));
      while((x = in.read()) != -1) out.write(x);
      out.close();
    }
    in.close();
  }

}// end class Zip