/**
 * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>
 * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
 * joint initiative of the Federal Chancellery Austria and Graz University of
 * Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 */
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;
//  }

}