//
   //  ========================================================================
   //  Copyright (c) 1995-2016 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.http2.generator;
  
  import java.nio.ByteBuffer;
  
  import org.eclipse.jetty.http2.frames.Frame;
  import org.eclipse.jetty.http2.frames.FrameType;
  import org.eclipse.jetty.io.ByteBufferPool;
  
  public class HeaderGenerator
  {
      private int maxFrameSize = Frame.DEFAULT_MAX_LENGTH;
  
      public ByteBuffer generate(ByteBufferPool.Lease lease, FrameType frameType, int capacity, int length, int flags, int streamId)
      {
          ByteBuffer header = lease.acquire(capacity, true);
          header.put((byte)((length & 0x00_FF_00_00) >>> 16));
          header.put((byte)((length & 0x00_00_FF_00) >>> 8));
          header.put((byte)((length & 0x00_00_00_FF)));
          header.put((byte)frameType.getType());
          header.put((byte)flags);
          header.putInt(streamId);
          return header;
      }
  
      public int getMaxFrameSize()
      {
          return maxFrameSize;
      }
  
      public void setMaxFrameSize(int maxFrameSize)
      {
          this.maxFrameSize = maxFrameSize;
      }
  }