89 lines
3.0 KiB
Java
89 lines
3.0 KiB
Java
/*
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* Copyright 2012 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.example.applet;
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import io.netty.bootstrap.ServerBootstrap;
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import io.netty.buffer.ByteBuf;
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import io.netty.channel.ChannelFuture;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.channel.ChannelInitializer;
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import io.netty.channel.EventLoopGroup;
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import io.netty.channel.SimpleChannelInboundHandler;
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import io.netty.channel.nio.NioEventLoopGroup;
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import io.netty.channel.socket.SocketChannel;
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import io.netty.channel.socket.nio.NioServerSocketChannel;
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import io.netty.util.CharsetUtil;
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import javax.swing.JApplet;
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/**
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* {@link JApplet} which starts up a Server that receive data and discard it.
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*/
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public class AppletDiscardServer extends JApplet {
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private static final long serialVersionUID = -7824894101960583175L;
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private EventLoopGroup bossGroup;
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private EventLoopGroup workerGroup;
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@Override
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public void init() {
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bossGroup = new NioEventLoopGroup(1);
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workerGroup = new NioEventLoopGroup();
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try {
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ServerBootstrap bootstrap = new ServerBootstrap();
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bootstrap.group(bossGroup, workerGroup)
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.channel(NioServerSocketChannel.class)
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.childHandler(new ChannelInitializer<SocketChannel>() {
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@Override
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public void initChannel(SocketChannel ch) throws Exception {
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ch.pipeline().addLast(new DiscardServerHandler());
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}
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});
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ChannelFuture f = bootstrap.bind(9999).sync();
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f.channel().closeFuture().sync();
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} catch (Exception ex) {
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ex.printStackTrace();
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throw new RuntimeException(ex);
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}
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}
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@Override
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public void destroy() {
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super.destroy();
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if (bossGroup != null) {
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bossGroup.shutdownGracefully();
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}
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if (workerGroup != null) {
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workerGroup.shutdownGracefully();
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}
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}
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private static final class DiscardServerHandler extends SimpleChannelInboundHandler<ByteBuf> {
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@Override
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public void channelRead0(ChannelHandlerContext ctx, ByteBuf msg) throws Exception {
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System.out.println("Received: " + msg.toString(CharsetUtil.UTF_8));
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}
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@Override
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public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
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cause.printStackTrace();
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ctx.close();
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}
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}
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}
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