ZIP in the FasadeBean

Question

Hello. I have a complete FasadeBean.java file with some methods like below:
package sensei.services;
import java.util.*;
import javax.ejb.*;
import javax.naming.NamingException;
import org.apache.commons.logging.*;
import sensei.exceptions.opinion.*;
import sensei.exceptions.File.*;
import sensei.interfaces.*;
import sensei.interfaces.FileLocal;
import sensei.util.*;
import sensei.value.OpinionValue;
import sensei.value.FileValue;
* Klasa Facade dla modulu plikow.
* @author Adam Joka
* @ejb.bean      name = "FileServices"
*                     display-name = "FileServices EJB"
*                     description = "EJB that acts as a FileServices"
*                    type = "Stateless"
*                     view-type = "remote"
*                     jndi-name = "ejb/FileServices"
public abstract class FileServicesBean implements SessionBean {
    private static Log log = LogFactory.getLog(FileServicesBean.class);
    private SessionContext sessionContext;
    private FileLocalHome fileLocalHome;
      * @throws CreateException
      * @ejb.create-method
     public void ejbCreate() throws CreateException {
         try {
             fileLocalHome = FileUtil.getLocalHome();
         } catch (NamingException ex) {
             throw new CreateException("Cannot lookup LocalHome!: " + ex.getMessage());
     public void setSessionContext(SessionContext sessionContext) {
         this.sessionContext = sessionContext;
      * @ejb.interface-method
      * @param title
      * @throws FileCreateException
     public FileValue addFile(String session, String filename, byte[] fileData)
       throws FileCreateException {
         try {
              FileLocal fl = fileLocalHome.create(session, filename, fileData);   
             log.info("Created File: " + fl);
             return fl.getFileValue();
         } catch (CreateException ex) {
             throw new FileCreateException("Cannot create File: " + ex.getMessage());
      * @ejb.interface-method
     /*public void removeFile(String session) throws FileRemoveException, FileNotFoundException {
         try {
             FileLocal fileLocal = fileLocalHome.findByPrimaryKey(session);
             fileLocal.remove();
         } catch (RemoveException ex) {
             throw new FileRemoveException("Cannot remove File: " + ex.getMessage());
         } catch (FinderException ex) {
             throw new FileNotFoundException("Cannot find File to be removed: " + ex.getMessage());
      * @ejb.interface-method
     /*public Collection getAllFileValues() throws FileException {
         Collection r = new ArrayList();
         try {
             Collection files = fileLocalHome.findAll();
             for (Iterator it = files.iterator(); it.hasNext(); ) {
                  FileLocal file = (FileLocal) it.next();
                  FileValue fileValue = file.getFileValue();
                  log.info("getAllFileValues(): adding to collection: " + fileValue);
                   r.add(fileValue);
              return r;
         } catch (FinderException ex) {
             throw new FileException("Cannot find in getAllFileValues: " + ex.getMessage());
      * @ejb.interface-method
     /*public byte[] getFile(int fileId) throws FileException {
          try {
             FileLocal file = fileLocalHome.findByPrimaryKey(new Integer(fileId));
              log.info("getAllFile: getting file from File " + fileId);
              return file.getFileData();
         } catch (FinderException ex) {
             throw new FileException("Cannot find in getFileFile: " + ex.getMessage());
      * @ejb.interface-method
     /*public String getFilename(int fileId)throws FileException{
          try {
             FileLocal file = fileLocalHome.findByPrimaryKey(new Integer(fileId));
              log.info("getAllFile: getting filename from File " + fileId);
              return file.getFilename();
         } catch (FinderException ex) {
             throw new FileException("Cannot find in getFilename: " + ex.getMessage());
      * @ejb.interface-method
     /*public String getFileSession(int fileId) throws FileException{
          try{
               FileLocal file = fileLocalHome.findByPrimaryKey(new Integer(fileId));
               log.info("getFileSession: getting session of file " + fileId);
               return file.getSession();
          catch(FinderException ex){
               throw new FileException("Canot find in getFileSession: " + ex.getMessage());
      * @ejb.interface-method
     public Collection getFilesValuesBySession(String session) throws FileException{
          Collection r = new ArrayList();
         try {
             Collection files = fileLocalHome.findAll();
             for (Iterator it = files.iterator(); it.hasNext(); ) {
                  FileLocal file = (FileLocal) it.next();
                  FileValue fileValue = file.getFileValue();
                  if(fileValue.getSession().equals(session)){
                       log.info("getAllFileValues(): adding to collection: " + fileValue);
                       r.add(fileValue);
              return r;
         } catch (FinderException ex) {
             throw new FileException("Cannot find in getFilesBySession: " + ex.getMessage());
}Now I have to add such a method to this FacadeBean file which could be responsible to unpack the zip and add every file that was inside this zip archive to the database. I've already found a class responsible to unpack the zip files:
import java.io.*;
import java.util.*;
import java.util.zip.*;
public class UnZip {
   public static void main (String argv[]) {
      try {
         final int BUFFER = 2048;
         BufferedOutputStream miejsce = null;
         FileInputStream fis = new FileInputStream("io.zip");
         CheckedInputStream checksum = new
         CheckedInputStream(fis, new Adler32());
         ZipInputStream zis = new
         ZipInputStream(new
         BufferedInputStream(checksum));
         ZipEntry entry;
         while((entry = zis.getNextEntry()) != null) {
            System.out.println("Rozkapowywanie: " +entry);
            int count;
            byte data[] = new byte[BUFFER];
            FileOutputStream fos = new
            FileOutputStream(entry.getName());
            miejsce = new BufferedOutputStream(fos,BUFFER);
            while ((count = zis.read(data, 0, BUFFER)) != -1)
               miejsce.write(data, 0, count);
            miejsce.flush();
            miejsce.close();
         zis.close();
         System.out.println("Suma kontrolna: "+checksum.getChecksum().getValue());
      } catch(Exception e) {
         e.printStackTrace();
} Could anybody please help me with 'connecting' these two applications to obtain a method in the FasadeBean file that could unpack the zip archive?
Regards

Answer 1

Or maybe somebody could help with changin whole UnZip class to the method...please :( ?