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30 changes: 12 additions & 18 deletions 4.0/guide/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -261,7 +261,7 @@ <h3>2. Writing a Discard Server</h3>
<span class="linenumber"> </span><span class="linenumber-separator"> </span>public class DiscardServerHandler extends <a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelInboundByteHandlerAdapter.html"><code class="classname">ChannelInboundByteHandlerAdapter</code></a> {<a name="example.discard.co1" id="example.discard.co1"></a><img src="http://docbook.github.com/release/2.0.3/base/img/1.png" alt="1" border="0" />
<span class="linenumber"> 4</span><span class="linenumber-separator"> </span>
<span class="linenumber"> </span><span class="linenumber-separator"> </span> @Override
<span class="linenumber"> 6</span><span class="linenumber-separator"> </span> public void inboundBufferUpdate(<a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelHandlerContext.html"><code class="interfacename">ChannelHandlerContext</code></a> ctx, <a href="http://static.netty.io/4.0/api/io/netty/buffer/ByteBuf.html"><code class="interfacename">ByteBuf</code></a> in) {<a name="example.discard.co2" id="example.discard.co2"></a><img src="http://docbook.github.com/release/2.0.3/base/img/2.png" alt="2" border="0" />
<span class="linenumber"> 6</span><span class="linenumber-separator"> </span> public void inboundBufferUpdate(<a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelHandlerContext.html"><code class="interfacename">ChannelHandlerContext</code></a> ctx, <a href="http://static.netty.io/4.0/api/io/netty/buffer/ByteBuf.html"><code class="interfacename">ByteBuf</code></a> in) throws Exception {<a name="example.discard.co2" id="example.discard.co2"></a><img src="http://docbook.github.com/release/2.0.3/base/img/2.png" alt="2" border="0" />
<span class="linenumber"> </span><span class="linenumber-separator"> </span> in.clear();
<span class="linenumber"> 8</span><span class="linenumber-separator"> </span> }
<span class="linenumber"> </span><span class="linenumber-separator"> </span>
Expand All @@ -281,13 +281,7 @@ <h3>2. Writing a Discard Server</h3>
</td>
<td class="callout-body" valign="baseline" align="left">
<p>
<code class="classname">DiscardServerHandler</code> extends
, which is an implementation of
. provides various event
handler methods that you can override. For now, it is just enough
to extend <a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelInboundByteHandlerAdapter.html"><code class="classname">ChannelInboundByteHandlerAdapter</code></a> rather than to implement
the handler interfaces by yourself.

<code class="classname">DiscardServerHandler</code> extends <a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelInboundByteHandlerAdapter.html"><code class="classname">ChannelInboundByteHandlerAdapter</code></a>, which is an implementation of <a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelStateHandler.html"><code class="classname">ChannelStateHandler</code></a>. <a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelStateHandler.html"><code class="classname">ChannelStateHandler</code></a> provides various event handler methods that you can override. For now, it is just enough to extend <a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelInboundByteHandlerAdapter.html"><code class="classname">ChannelInboundByteHandlerAdapter</code></a> rather than to implement the handler interfaces by yourself.
</p>
</td>
</tr>
Expand Down Expand Up @@ -344,24 +338,24 @@ <h3>2. Writing a Discard Server</h3>
<span class="linenumber"> </span><span class="linenumber-separator"> </span>
<span class="linenumber"> 8</span><span class="linenumber-separator"> </span> public static void main(String[] args) throws Exception {
<span class="linenumber"> </span><span class="linenumber-separator"> </span> <a href="http://static.netty.io/4.0/api/io/netty/bootstrap/ServerBootstrap.html"><code class="classname">ServerBootstrap</code></a> bootstrap =
<span class="linenumber"> 10</span><span class="linenumber-separator"> </span> new <a name="example.discard2.co1" id="example.discard2.co1"></a><img src="http://docbook.github.com/release/2.0.3/base/img/4.png" alt="4" border="0" />();
<span class="linenumber"> 10</span><span class="linenumber-separator"> </span> new <a href="http://static.netty.io/4.0/api/io/netty/bootstrap/ServerBootstrap.html"><code class="classname">ServerBootstrap</code></a><a name="example.discard2.co1" id="example.discard2.co1"></a><img src="http://docbook.github.com/release/2.0.3/base/img/4.png" alt="4" border="0" />();
<span class="linenumber"> </span><span class="linenumber-separator"> </span> try {
<span class="linenumber"> 12</span><span class="linenumber-separator"> </span> bootstrap.group(new <a href="http://static.netty.io/4.0/api/io/netty/channel/nio/NioEventLoopGroup.html"><code class="classname">NioEventLoopGroup</code></a>(), new <a href="http://static.netty.io/4.0/api/io/netty/channel/nio/NioEventLoopGroup.html"><code class="classname">NioEventLoopGroup</code></a><a name="example.discard2.co2" id="example.discard2.co2"></a><img src="http://docbook.github.com/release/2.0.3/base/img/5.png" alt="5" border="0" />();
<span class="linenumber"> </span><span class="linenumber-separator"> </span> .channel(<a name="example.discard2.co3" id="example.discard2.co3"></a><img src="http://docbook.github.com/release/2.0.3/base/img/6.png" alt="6" border="0" />)
<span class="linenumber"> 12</span><span class="linenumber-separator"> </span> bootstrap.group(new <a href="http://static.netty.io/4.0/api/io/netty/channel/nio/NioEventLoopGroup.html"><code class="classname">NioEventLoopGroup</code></a>(), new <a href="http://static.netty.io/4.0/api/io/netty/channel/nio/NioEventLoopGroup.html"><code class="classname">NioEventLoopGroup</code></a><a name="example.discard2.co2" id="example.discard2.co2"></a><img src="http://docbook.github.com/release/2.0.3/base/img/5.png" alt="5" border="0" />())
<span class="linenumber"> </span><span class="linenumber-separator"> </span> .channel(<a href="http://static.netty.io/4.0/api/io/netty/socket/nio/NioServerSocketChannel.html"><code class="classname">NioServerSocketChannel</code></a>.class<a name="example.discard2.co3" id="example.discard2.co3"></a><img src="http://docbook.github.com/release/2.0.3/base/img/6.png" alt="6" border="0" />)
<span class="linenumber"> 14</span><span class="linenumber-separator"> </span> .childHandler(new <a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelInitializer.html"><code class="classname">ChannelInitializer</code></a>&lt;SocketChannel&gt;() {<a name="example.discard2.co4" id="example.discard2.co4"></a><img src="http://docbook.github.com/release/2.0.3/base/img/7.png" alt="7" border="0" />
<span class="linenumber"> </span><span class="linenumber-separator"> </span> @Override
<span class="linenumber"> 16</span><span class="linenumber-separator"> </span> public void initChannel(SocketChannel channel) throws Exception {
<span class="linenumber"> </span><span class="linenumber-separator"> </span> channel.pipeline().addLast(new DiscardServerHandler());
<span class="linenumber"> 18</span><span class="linenumber-separator"> </span> }
<span class="linenumber"> </span><span class="linenumber-separator"> </span> })
<span class="linenumber"> 20</span><span class="linenumber-separator"> </span> .setChildOption(.TCP_NO_DELAY, true)<a name="example.discard2.co5" id="example.discard2.co5"></a><img src="http://docbook.github.com/release/2.0.3/base/img/8.png" alt="8" border="0" />
<span class="linenumber"> </span><span class="linenumber-separator"> </span> .setChildOption(.KEEP_ALIVE, true)
<span class="linenumber"> 20</span><span class="linenumber-separator"> </span> .childOption(ChannelOption.<a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelOption.html#TCP_NODELAY">TCP_NODELAY</a>, true)<a name="example.discard2.co5" id="example.discard2.co5"></a><img src="http://docbook.github.com/release/2.0.3/base/img/8.png" alt="8" border="0" />
<span class="linenumber"> </span><span class="linenumber-separator"> </span> .childOption(ChannelOption.<a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelOption.html#SO_KEEPALIVE">SO_KEEPALIVE</a>, true);
<span class="linenumber"> 22</span><span class="linenumber-separator"> </span>
<span class="linenumber"> </span><span class="linenumber-separator"> </span> ChannelFuture future = bootstrap.bind(new InetSocketAddress(8080)).sync();<a name="example.discard2.co6" id="example.discard2.co6"></a><img src="http://docbook.github.com/release/2.0.3/base/img/9.png" alt="9" border="0" />
<span class="linenumber"> 24</span><span class="linenumber-separator"> </span>
<span class="linenumber"> </span><span class="linenumber-separator"> </span> future.channel().closeFuture().sync();
<span class="linenumber"> 26</span><span class="linenumber-separator"> </span> } finally {
<span class="linenumber"> </span><span class="linenumber-separator"> </span> b.shutdown();
<span class="linenumber"> </span><span class="linenumber-separator"> </span> bootstrap.shutdown();
<span class="linenumber"> 28</span><span class="linenumber-separator"> </span> }
<span class="linenumber"> </span><span class="linenumber-separator"> </span> }
<span class="linenumber"> 30</span><span class="linenumber-separator"> </span>}</pre></div>
Expand Down Expand Up @@ -501,8 +495,8 @@ <h3>3. Looking into the Received Data</h3>

</p>
<div class="programlisting"><pre><span class="linenumber"> 1</span><span class="linenumber-separator"> </span>@Override
<span class="linenumber"> 2</span><span class="linenumber-separator"> </span>public void inboundBufferUpdated(<a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelHandlerContext.html"><code class="interfacename">ChannelHandlerContext</code></a> ctx, <a href="http://static.netty.io/4.0/api/io/netty/buffer/ByteBuf.html"><code class="interfacename">ByteBuf</code></a> in) {
<span class="linenumber"> </span><span class="linenumber-separator"> </span> while(in.readable()) {
<span class="linenumber"> 2</span><span class="linenumber-separator"> </span>public void inboundBufferUpdated(<a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelHandlerContext.html"><code class="interfacename">ChannelHandlerContext</code></a> ctx, <a href="http://static.netty.io/4.0/api/io/netty/buffer/ByteBuf.html"><code class="interfacename">ByteBuf</code></a> in) throws Exception {
<span class="linenumber"> </span><span class="linenumber-separator"> </span> while(in.isReadable()) {
<span class="linenumber"> 4</span><span class="linenumber-separator"> </span> System.out.println((char) buf.readByte());
<span class="linenumber"> </span><span class="linenumber-separator"> </span> System.out.flush();
<span class="linenumber"> 6</span><span class="linenumber-separator"> </span> }
Expand Down Expand Up @@ -605,7 +599,7 @@ <h3>5. Writing a Time Server</h3>
</p>
<div class="programlisting"><pre><span class="linenumber"> 1</span><span class="linenumber-separator"> </span>package io.netty.example.time;
<span class="linenumber"> 2</span><span class="linenumber-separator"> </span>
<span class="linenumber"> </span><span class="linenumber-separator"> </span>public class TimeServerHandler extends {
<span class="linenumber"> </span><span class="linenumber-separator"> </span>public class TimeServerHandler extends <a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelInboundByteHandlerAdapter.html"><code class="classname">ChannelInboundByteHandlerAdapter</code></a> {
<span class="linenumber"> 4</span><span class="linenumber-separator"> </span>
<span class="linenumber"> </span><span class="linenumber-separator"> </span> @Override
<span class="linenumber"> 6</span><span class="linenumber-separator"> </span> public void channelActive(<a href="http://static.netty.io/4.0/api/io/netty/channel/ChannelHandlerContext.html"><code class="interfacename">ChannelHandlerContext</code></a> ctx) {<a name="example.time.co1" id="example.time.co1"></a><img src="http://docbook.github.com/release/2.0.3/base/img/11.png" alt="11"
Expand Down Expand Up @@ -2249,4 +2243,4 @@ <h3>4. How do I pass data between handlers in the same Channel?</h3>
</article>
</article>
</body>
</html>
</html>