//
   //  ========================================================================
   //  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.websocket.common.frames;
  
  import java.nio.ByteBuffer;
  
  import org.eclipse.jetty.websocket.api.extensions.Frame;
  
  /**
   * Immutable, Read-only, Frame implementation.
   */
  public class ReadOnlyDelegatedFrame implements Frame
  {
      private final Frame delegate;
      
      public ReadOnlyDelegatedFrame(Frame frame)
      {
          this.delegate = frame;
      }
  
      @Override
      public byte[] getMask()
      {
          return delegate.getMask();
      }
  
      @Override
      public byte getOpCode()
      {
          return delegate.getOpCode();
      }
  
      @Override
      public ByteBuffer getPayload()
      {
          if(!delegate.hasPayload()) {
              return null;
          }
          return delegate.getPayload().asReadOnlyBuffer();
      }
  
      @Override
      public int getPayloadLength()
      {
          return delegate.getPayloadLength();
      }
  
      @Override
      public Type getType()
      {
          return delegate.getType();
      }
  
      @Override
      public boolean hasPayload()
      {
          return delegate.hasPayload();
      }
  
      @Override
      public boolean isFin()
      {
          return delegate.isFin();
      }
  
      @Override
      @Deprecated
      public boolean isLast()
      {
          return delegate.isLast();
      }
  
      @Override
      public boolean isMasked()
      {
          return delegate.isMasked();
      }
  
      @Override
      public boolean isRsv1()
      {
          return delegate.isRsv1();
      }
 
     @Override
     public boolean isRsv2()
     {
         return delegate.isRsv2();
     }
 
     @Override
     public boolean isRsv3()
     {
         return delegate.isRsv3();
     }
 }