/*
    * 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.example.http2.tiles;
  
  import io.netty.bootstrap.ServerBootstrap;
  import io.netty.channel.Channel;
  import io.netty.channel.ChannelFuture;
  import io.netty.channel.ChannelInitializer;
  import io.netty.channel.ChannelOption;
  import io.netty.channel.EventLoopGroup;
  import io.netty.channel.socket.SocketChannel;
  import io.netty.channel.socket.nio.NioServerSocketChannel;
  import io.netty.handler.codec.http.HttpObjectAggregator;
  import io.netty.handler.codec.http.HttpRequestDecoder;
  import io.netty.handler.codec.http.HttpResponseEncoder;
  import io.netty.handler.logging.LogLevel;
  import io.netty.handler.logging.LoggingHandler;
  
  /**
   * Demonstrates an http server using Netty to display a bunch of images, simulate
   * latency and compare it against the http2 implementation.
   */
  public final class HttpServer {
  
      public static final int PORT = Integer.parseInt(System.getProperty("http-port", "8080"));
      private static final int MAX_CONTENT_LENGTH = 1024 * 100;
  
      private final EventLoopGroup group;
  
      public HttpServer(EventLoopGroup eventLoopGroup) {
          group = eventLoopGroup;
      }
  
      public ChannelFuture start() throws Exception {
          ServerBootstrap b = new ServerBootstrap();
          b.option(ChannelOption.SO_BACKLOG, 1024);
  
          b.group(group).channel(NioServerSocketChannel.class).handler(new LoggingHandler(LogLevel.INFO))
          .childHandler(new ChannelInitializer<SocketChannel>() {
              @Override
              protected void initChannel(SocketChannel ch) throws Exception {
                  ch.pipeline().addLast(new HttpRequestDecoder(),
                                        new HttpResponseEncoder(),
                                        new HttpObjectAggregator(MAX_CONTENT_LENGTH),
                                        new Http1RequestHandler());
              }
          });
  
          Channel ch = b.bind(PORT).sync().channel();
          return ch.closeFuture();
      }
  }