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   /*
    * Copyright 2015 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;
  
  import java.util.List;
  
  /**
   * Decorator around another {@link Http2ConnectionDecoder} instance.
   */
  @UnstableApi
  public class DecoratingHttp2ConnectionDecoder implements Http2ConnectionDecoder {
      private final Http2ConnectionDecoder delegate;
  
      public DecoratingHttp2ConnectionDecoder(Http2ConnectionDecoder delegate) {
          this.delegate = checkNotNull(delegate, "delegate");
      }
  
      @Override
      public void lifecycleManager(Http2LifecycleManager lifecycleManager) {
          delegate.lifecycleManager(lifecycleManager);
      }
  
      @Override
      public Http2Connection connection() {
          return delegate.connection();
      }
  
      @Override
      public Http2LocalFlowController flowController() {
          return delegate.flowController();
      }
  
      @Override
      public void frameListener(Http2FrameListener listener) {
          delegate.frameListener(listener);
      }
  
      @Override
      public Http2FrameListener frameListener() {
          return delegate.frameListener();
      }
  
      @Override
      public void decodeFrame(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Http2Exception {
          delegate.decodeFrame(ctx, in, out);
      }
  
      @Override
      public Http2Settings localSettings() {
          return delegate.localSettings();
      }
  
      @Override
      public boolean prefaceReceived() {
          return delegate.prefaceReceived();
      }
  
      @Override
      public void close() {
          delegate.close();
      }
  }