/*
    * Copyright 2014 The Netty Project
    *
    * The Netty Project licenses this file to you under the Apache License, version 2.0 (the
    * "License"); you may not use this file except in compliance with the License. You may obtain a
    * copy of the License at:
    *
    * https://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software distributed under the License
   * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
   * or implied. See the License for the specific language governing permissions and limitations under
   * the License.
   */
  package io.netty.handler.codec.http2;
  
  import static io.netty.util.internal.ObjectUtil.checkNotNull;
  import io.netty.buffer.ByteBuf;
  import io.netty.channel.ChannelHandlerContext;
  import io.netty.util.internal.UnstableApi;
  
  /**
   * Provides a decorator around a {@link Http2FrameListener} and delegates all method calls
   */
  @UnstableApi
  public class Http2FrameListenerDecorator implements Http2FrameListener {
      protected final Http2FrameListener listener;
  
      public Http2FrameListenerDecorator(Http2FrameListener listener) {
          this.listener = checkNotNull(listener, "listener");
      }
  
      @Override
      public int onDataRead(ChannelHandlerContext ctx, int streamId, ByteBuf data, int padding, boolean endOfStream)
              throws Http2Exception {
          return listener.onDataRead(ctx, streamId, data, padding, endOfStream);
      }
  
      @Override
      public void onHeadersRead(ChannelHandlerContext ctx, int streamId, Http2Headers headers, int padding,
              boolean endStream) throws Http2Exception {
          listener.onHeadersRead(ctx, streamId, headers, padding, endStream);
      }
  
      @Override
      public void onHeadersRead(ChannelHandlerContext ctx, int streamId, Http2Headers headers, int streamDependency,
              short weight, boolean exclusive, int padding, boolean endStream) throws Http2Exception {
          listener.onHeadersRead(ctx, streamId, headers, streamDependency, weight, exclusive, padding, endStream);
      }
  
      @Override
      public void onPriorityRead(ChannelHandlerContext ctx, int streamId, int streamDependency, short weight,
              boolean exclusive) throws Http2Exception {
          listener.onPriorityRead(ctx, streamId, streamDependency, weight, exclusive);
      }
  
      @Override
      public void onRstStreamRead(ChannelHandlerContext ctx, int streamId, long errorCode) throws Http2Exception {
          listener.onRstStreamRead(ctx, streamId, errorCode);
      }
  
      @Override
      public void onSettingsAckRead(ChannelHandlerContext ctx) throws Http2Exception {
          listener.onSettingsAckRead(ctx);
      }
  
      @Override
      public void onSettingsRead(ChannelHandlerContext ctx, Http2Settings settings) throws Http2Exception {
          listener.onSettingsRead(ctx, settings);
      }
  
      @Override
      public void onPingRead(ChannelHandlerContext ctx, long data) throws Http2Exception {
          listener.onPingRead(ctx, data);
      }
  
      @Override
      public void onPingAckRead(ChannelHandlerContext ctx, long data) throws Http2Exception {
          listener.onPingAckRead(ctx, data);
      }
  
      @Override
      public void onPushPromiseRead(ChannelHandlerContext ctx, int streamId, int promisedStreamId, Http2Headers headers,
              int padding) throws Http2Exception {
          listener.onPushPromiseRead(ctx, streamId, promisedStreamId, headers, padding);
      }
  
      @Override
      public void onGoAwayRead(ChannelHandlerContext ctx, int lastStreamId, long errorCode, ByteBuf debugData)
              throws Http2Exception {
          listener.onGoAwayRead(ctx, lastStreamId, errorCode, debugData);
      }
  
      @Override
      public void onWindowUpdateRead(ChannelHandlerContext ctx, int streamId, int windowSizeIncrement)
              throws Http2Exception {
          listener.onWindowUpdateRead(ctx, streamId, windowSizeIncrement);
      }
  
     @Override
     public void onUnknownFrame(ChannelHandlerContext ctx, byte frameType, int streamId, Http2Flags flags,
             ByteBuf payload) throws Http2Exception {
         listener.onUnknownFrame(ctx, frameType, streamId, flags, payload);
     }
 }