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A reactive Java web server.

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/*
 * Copyright (c) 1998-2015 Caucho Technology -- all rights reserved
 *
 * This file is part of Baratine(TM)
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Baratine is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Baratine is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Baratine; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.v5.db.temp_store;

import java.io.IOException;
import java.io.InputStream;
import java.util.Objects;

import com.caucho.v5.io.StreamSource;

public class StreamSourceChunked extends StreamSource
{
  private StreamSource _ss;
  private int _offset;
  private int _length;
  
  public StreamSourceChunked(StreamSource ss, int offset, int length)
    throws IOException
  {
    _ss = ss;
    _offset = offset;
    _length = length;
  }
  
  @Override
  public long getLength()
  {
    return _length;
  }
  
  @Override
  public InputStream openInputStream()
    throws IOException
  {
    InputStream is = _ss.openInputStream();
    
    Objects.requireNonNull(is);
    
    return new InputStreamChunked(is, _offset, _length);
  }
  
  @Override
  public InputStream getInputStream()
    throws IOException
  {
    InputStream is = _ss.getInputStream();
      
    Objects.requireNonNull(is);
      
    return new InputStreamChunked(is, _offset, _length);
  }
  
  @Override
  public String toString()
  {
    return (getClass().getSimpleName()
            + "[" + _ss + "," + _offset + "," + _length + "]");
    
  }
}