kirunews

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;

import java.net.MalformedURLException;
import java.net.URL;

public class getZip {

   // specify buffer size for extraction
   static final int BUFFER = 5 * 1024;

   public static void main(String[] args) {
     try {
       System.out.println("Example of ZIP file decompression.");

       // Specify file to decompress
       String inFileName = "http://www.gutenberg.org/feeds/catalog.rdf.zip";

       // Specify destination where file will be unzipped
       String destinationDirectory = ".";

       URL url = new URL(inFileName);
       InputStream in = url.openStream();

       // File sourceZipFile = new File(inFileName);
       File unzipDestinationDirectory = new File(destinationDirectory);

       // Open Zip file for reading
       ZipInputStream zipFile = new ZipInputStream(in);
       ZipEntry entry;
       while(((entry = zipFile.getNextEntry()) != null) && entry.getName().equals("catalog.rdf")) {
         System.out.println("Extracting: " + entry.getName());
         File destFile = new File(unzipDestinationDirectory, entry.getName());
         BufferedOutputStream dest = new BufferedOutputStream(
           new FileOutputStream(destFile), BUFFER);

         // read and write until last byte is encountered
         byte[] buff = new byte[BUFFER];
         int n;
         while ((n = zipFile.read(buff)) != -1) {
           dest.write(buff, 0, n);
         }
         dest.flush();
         dest.close();
         // is.close();
       }
       zipFile.close();

     } catch (MalformedURLException e) {
       e.printStackTrace();
     } catch (IOException e) {
       e.printStackTrace();
     }
   }
}