//
   //  ========================================================================
   //  Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
   //  ------------------------------------------------------------------------
   //  All rights reserved. This program and the accompanying materials
   //  are made available under the terms of the Eclipse Public License v1.0
   //  and Apache License v2.0 which accompanies this distribution.
   //
   //      The Eclipse Public License is available at
  //      http://www.eclipse.org/legal/epl-v10.html
  //
  //      The Apache License v2.0 is available at
  //      http://www.opensource.org/licenses/apache2.0.php
  //
  //  You may elect to redistribute this code under either of these licenses.
  //  ========================================================================
  //
  
  package org.eclipse.jetty.spdy.api;
  
  import java.nio.ByteBuffer;
  import java.util.concurrent.TimeUnit;
  
  /**
   * <p>Specialized {@link DataInfo} for byte array content.</p>
   */
  public class BytesDataInfo extends DataInfo
  {
      private final byte[] bytes;
      private final int offset;
      private final int length;
      private int index;
  
      public BytesDataInfo(byte[] bytes, boolean close)
      {
          this(0, TimeUnit.SECONDS, bytes, close);
      }
  
      public BytesDataInfo(long timeout, TimeUnit unit, byte[] bytes, boolean close)
      {
          this(timeout, unit, bytes, 0, bytes.length, close);
      }
  
      public BytesDataInfo(long timeout, TimeUnit unit, byte[] bytes, int offset, int length, boolean close)
      {
          super(timeout, unit, close);
          this.bytes = bytes;
          this.offset = offset;
          this.length = length;
          this.index = offset;
      }
  
      @Override
      public int length()
      {
          return length;
      }
  
      @Override
      public int available()
      {
          return length - index + offset;
      }
  
      @Override
      public int readInto(ByteBuffer output)
      {
          int space = output.remaining();
          int chunk = Math.min(available(), space);
          output.put(bytes, index, chunk);
          index += chunk;
          return chunk;
      }
  
      @Override
      public int readInto(byte[] bytes, int offset, int length)
      {
          int chunk = Math.min(available(), length);
          System.arraycopy(this.bytes, index, bytes, offset, chunk);
          index += chunk;
          return chunk;
      }
  }