package at.gv.egiz.pdfas.utils;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

public class StreamUtils
{
  
  public static void writeInputStreamToOutputStream (InputStream is, OutputStream os) throws IOException
  {
    byte [] buffer = new byte [2048];
    
    int read = -1;
    while ((read = is.read(buffer)) > 0)
    {
      os.write(buffer, 0, read);
    }
    os.flush();
    is.close();
    os.close();
  }
  
  // The InputStream should be self- delimited.
//  public static void writeInputStreamToOutputStream(InputStream is, OutputStream os, int length) throws IOException
//  {
//    byte [] buffer = new byte [2048];
//    
//    int bytes_to_write = length;
//    
//    int read = -1;
//    while ((read = is.read(buffer, 0, (bytes_to_write >= buffer.length) ? buffer.length : bytes_to_write)) > 0)
//    {
//      os.write(buffer, 0, read);
//      bytes_to_write -= read;
//    }
//    is.close();
//    os.close();
//    
//    assert bytes_to_write == 0;
//  }

}