content: /*
  ---------------------------------------------------------------------------
  Open Asset Import Library - Java Binding (jassimp)
  ---------------------------------------------------------------------------
  
  Copyright (c) 2006-2020, assimp team
  
  All rights reserved.
  
  Redistribution and use of this software in source and binary forms, 
  with or without modification, are permitted provided that the following 
  conditions are met:
  
  * Redistributions of source code must retain the above
    copyright notice, this list of conditions and the
    following disclaimer.
  
  * Redistributions in binary form must reproduce the above
    copyright notice, this list of conditions and the
    following disclaimer in the documentation and/or other
    materials provided with the distribution.
  
  * Neither the name of the assimp team, nor the names of its
    contributors may be used to endorse or promote products
    derived from this software without specific prior
    written permission of the assimp team.
  
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  ---------------------------------------------------------------------------
  */
  package jassimp;
  
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.net.URI;
  import java.net.URL;
  import java.nio.ByteBuffer;
  
  
  /**
   * Implementation of AiIOStream reading from a InputStream
   * 
   * @author Jesper Smith
   *
   */
  public class AiInputStreamIOStream implements AiIOStream
  {
     private final ByteArrayOutputStream os = new ByteArrayOutputStream(); 
     
     
     public AiInputStreamIOStream(URI uri) throws IOException {
        this(uri.toURL());
     }
     
     public AiInputStreamIOStream(URL url) throws IOException {
        this(url.openStream());
     }
     
     public AiInputStreamIOStream(InputStream is) throws IOException {
        int read;
        byte[] data = new byte[1024];
        while((read = is.read(data, 0, data.length)) != -1) {
           os.write(data, 0, read);
        }
        os.flush();
        
        is.close();
     }
     
     @Override
     public int getFileSize() {
        return os.size();
     }
     
     @Override
     public boolean read(ByteBuffer buffer) {
       ByteBufferOutputStream bos = new ByteBufferOutputStream(buffer);
       try
       {
          os.writeTo(bos);
       }
       catch (IOException e)
       {
          e.printStackTrace();
          return false;
       }
       return true;
     }
     
     /**
      * Internal helper class to copy the contents of an OutputStream
      * into a ByteBuffer. This avoids a copy.
      *
      */
     private static class ByteBufferOutputStream extends OutputStream {
  
        private final ByteBuffer buffer;
        
        public ByteBufferOutputStream(ByteBuffer buffer) {
           this.buffer = buffer;
        }
        
        @Override
        public void write(int b) throws IOException
        {
           buffer.put((byte) b);
        }
      
        @Override
        public void write(byte b[], int off, int len) throws IOException {
           buffer.put(b, off, len);
        }
     }
  }
  
  