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   /*
    * Copyright 2012 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.example.http.upload;
  
  import io.netty.channel.ChannelInitializer;
  import io.netty.channel.ChannelPipeline;
  import io.netty.channel.socket.SocketChannel;
  import io.netty.handler.codec.http.HttpClientCodec;
  import io.netty.handler.codec.http.HttpContentDecompressor;
  import io.netty.handler.ssl.SslContext;
  import io.netty.handler.stream.ChunkedWriteHandler;
  
  public class HttpUploadClientInitializer extends ChannelInitializer<SocketChannel> {
  
      private final SslContext sslCtx;
  
      public HttpUploadClientInitializer(SslContext sslCtx) {
          this.sslCtx = sslCtx;
      }
  
      @Override
      public void initChannel(SocketChannel ch) {
          ChannelPipeline pipeline = ch.pipeline();
  
          if (sslCtx != null) {
              pipeline.addLast("ssl", sslCtx.newHandler(ch.alloc()));
          }
  
          pipeline.addLast("codec", new HttpClientCodec());
  
          // Remove the following line if you don't want automatic content decompression.
          pipeline.addLast("inflater", new HttpContentDecompressor());
  
          // to be used since huge file transfer
          pipeline.addLast("chunkedWriter", new ChunkedWriteHandler());
  
          pipeline.addLast("handler", new HttpUploadClientHandler());
      }
  }