/*
    * 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.example.stomp;
  
  import io.netty.bootstrap.Bootstrap;
  import io.netty.channel.ChannelInitializer;
  import io.netty.channel.ChannelPipeline;
  import io.netty.channel.EventLoopGroup;
  import io.netty.channel.MultiThreadIoEventLoopGroup;
  import io.netty.channel.nio.NioIoHandler;
  import io.netty.channel.socket.SocketChannel;
  import io.netty.channel.socket.nio.NioSocketChannel;
  import io.netty.handler.codec.stomp.StompSubframeAggregator;
  import io.netty.handler.codec.stomp.StompSubframeDecoder;
  import io.netty.handler.codec.stomp.StompSubframeEncoder;
  
  
  /**
   * very simple stomp client implementation example, requires running stomp server to actually work
   * uses default username/password and destination values from hornetq message broker
   */
  public final class StompClient {
  
      static final boolean SSL = System.getProperty("ssl") != null;
      static final String HOST = System.getProperty("host", "127.0.0.1");
      static final int PORT = Integer.parseInt(System.getProperty("port", "61613"));
      static final String LOGIN = System.getProperty("login", "guest");
      static final String PASSCODE = System.getProperty("passcode", "guest");
      static final String TOPIC = System.getProperty("topic", "jms.topic.exampleTopic");
  
      public static void main(String[] args) throws Exception {
          EventLoopGroup group = new MultiThreadIoEventLoopGroup(NioIoHandler.newFactory());
          try {
              Bootstrap b = new Bootstrap();
              b.group(group).channel(NioSocketChannel.class);
              b.handler(new ChannelInitializer<SocketChannel>() {
                  @Override
                  protected void initChannel(SocketChannel ch) throws Exception {
                      ChannelPipeline pipeline = ch.pipeline();
                      pipeline.addLast("decoder", new StompSubframeDecoder());
                      pipeline.addLast("encoder", new StompSubframeEncoder());
                      pipeline.addLast("aggregator", new StompSubframeAggregator(1048576));
                      pipeline.addLast("handler", new StompClientHandler());
                  }
              });
  
              b.connect(HOST, PORT).sync().channel().closeFuture().sync();
          } finally {
              group.shutdownGracefully();
          }
      }
  }