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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.client.example;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import static org.apache.hadoop.hbase.util.FutureUtils.addListener;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.apache.hadoop.hbase.util.NettyFutureUtils.safeWriteAndFlush;</span> |
| <span class="source-line-no">022</span><span id="line-22"></span> |
| <span class="source-line-no">023</span><span id="line-23">import java.io.IOException;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.net.InetSocketAddress;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.Iterator;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.List;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.concurrent.ExecutionException;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.HBaseConfiguration;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.client.AsyncConnection;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.client.ConnectionFactory;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.client.Get;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.client.Put;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.ipc.NettyRpcClientConfigHelper;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">038</span><span id="line-38"></span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hbase.thirdparty.com.google.common.base.Splitter;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hbase.thirdparty.com.google.common.base.Throwables;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hbase.thirdparty.io.netty.bootstrap.ServerBootstrap;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.apache.hbase.thirdparty.io.netty.channel.Channel;</span> |
| <span class="source-line-no">045</span><span id="line-45">import org.apache.hbase.thirdparty.io.netty.channel.ChannelHandlerContext;</span> |
| <span class="source-line-no">046</span><span id="line-46">import org.apache.hbase.thirdparty.io.netty.channel.ChannelInitializer;</span> |
| <span class="source-line-no">047</span><span id="line-47">import org.apache.hbase.thirdparty.io.netty.channel.ChannelOption;</span> |
| <span class="source-line-no">048</span><span id="line-48">import org.apache.hbase.thirdparty.io.netty.channel.EventLoopGroup;</span> |
| <span class="source-line-no">049</span><span id="line-49">import org.apache.hbase.thirdparty.io.netty.channel.SimpleChannelInboundHandler;</span> |
| <span class="source-line-no">050</span><span id="line-50">import org.apache.hbase.thirdparty.io.netty.channel.group.ChannelGroup;</span> |
| <span class="source-line-no">051</span><span id="line-51">import org.apache.hbase.thirdparty.io.netty.channel.group.DefaultChannelGroup;</span> |
| <span class="source-line-no">052</span><span id="line-52">import org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoopGroup;</span> |
| <span class="source-line-no">053</span><span id="line-53">import org.apache.hbase.thirdparty.io.netty.channel.socket.nio.NioServerSocketChannel;</span> |
| <span class="source-line-no">054</span><span id="line-54">import org.apache.hbase.thirdparty.io.netty.channel.socket.nio.NioSocketChannel;</span> |
| <span class="source-line-no">055</span><span id="line-55">import org.apache.hbase.thirdparty.io.netty.handler.codec.http.DefaultFullHttpResponse;</span> |
| <span class="source-line-no">056</span><span id="line-56">import org.apache.hbase.thirdparty.io.netty.handler.codec.http.FullHttpRequest;</span> |
| <span class="source-line-no">057</span><span id="line-57">import org.apache.hbase.thirdparty.io.netty.handler.codec.http.HttpHeaderNames;</span> |
| <span class="source-line-no">058</span><span id="line-58">import org.apache.hbase.thirdparty.io.netty.handler.codec.http.HttpObjectAggregator;</span> |
| <span class="source-line-no">059</span><span id="line-59">import org.apache.hbase.thirdparty.io.netty.handler.codec.http.HttpResponseStatus;</span> |
| <span class="source-line-no">060</span><span id="line-60">import org.apache.hbase.thirdparty.io.netty.handler.codec.http.HttpServerCodec;</span> |
| <span class="source-line-no">061</span><span id="line-61">import org.apache.hbase.thirdparty.io.netty.handler.codec.http.HttpVersion;</span> |
| <span class="source-line-no">062</span><span id="line-62">import org.apache.hbase.thirdparty.io.netty.handler.codec.http.QueryStringDecoder;</span> |
| <span class="source-line-no">063</span><span id="line-63">import org.apache.hbase.thirdparty.io.netty.util.concurrent.GlobalEventExecutor;</span> |
| <span class="source-line-no">064</span><span id="line-64"></span> |
| <span class="source-line-no">065</span><span id="line-65">/**</span> |
| <span class="source-line-no">066</span><span id="line-66"> * A simple example on how to use {@link org.apache.hadoop.hbase.client.AsyncTable} to write a fully</span> |
| <span class="source-line-no">067</span><span id="line-67"> * asynchronous HTTP proxy server. The {@link AsyncConnection} will share the same event loop with</span> |
| <span class="source-line-no">068</span><span id="line-68"> * the HTTP server.</span> |
| <span class="source-line-no">069</span><span id="line-69"> * <p></span> |
| <span class="source-line-no">070</span><span id="line-70"> * The request URL is:</span> |
| <span class="source-line-no">071</span><span id="line-71"> *</span> |
| <span class="source-line-no">072</span><span id="line-72"> * <pre></span> |
| <span class="source-line-no">073</span><span id="line-73"> * http://&lt;host&gt;:&lt;port&gt;/&lt;table&gt;/&lt;rowgt;/&lt;family&gt;:&lt;qualifier&gt;</span> |
| <span class="source-line-no">074</span><span id="line-74"> * </pre></span> |
| <span class="source-line-no">075</span><span id="line-75"> *</span> |
| <span class="source-line-no">076</span><span id="line-76"> * Use HTTP GET to fetch data, and use HTTP PUT to put data. Encode the value as the request content</span> |
| <span class="source-line-no">077</span><span id="line-77"> * when doing PUT.</span> |
| <span class="source-line-no">078</span><span id="line-78"> * <p></span> |
| <span class="source-line-no">079</span><span id="line-79"> * Notice that, future class methods will all return a new Future, so you always have one future</span> |
| <span class="source-line-no">080</span><span id="line-80"> * that will not been checked, so we need to suppress error-prone "FutureReturnValueIgnored"</span> |
| <span class="source-line-no">081</span><span id="line-81"> * warnings on the methods such as join and stop. In your real production code, you should use your</span> |
| <span class="source-line-no">082</span><span id="line-82"> * own convenient way to address the warning.</span> |
| <span class="source-line-no">083</span><span id="line-83"> */</span> |
| <span class="source-line-no">084</span><span id="line-84">@InterfaceAudience.Private</span> |
| <span class="source-line-no">085</span><span id="line-85">public class HttpProxyExample {</span> |
| <span class="source-line-no">086</span><span id="line-86"></span> |
| <span class="source-line-no">087</span><span id="line-87"> private final EventLoopGroup bossGroup = new NioEventLoopGroup(1);</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> private final EventLoopGroup workerGroup = new NioEventLoopGroup();</span> |
| <span class="source-line-no">090</span><span id="line-90"></span> |
| <span class="source-line-no">091</span><span id="line-91"> private final Configuration conf;</span> |
| <span class="source-line-no">092</span><span id="line-92"></span> |
| <span class="source-line-no">093</span><span id="line-93"> private final int port;</span> |
| <span class="source-line-no">094</span><span id="line-94"></span> |
| <span class="source-line-no">095</span><span id="line-95"> private AsyncConnection conn;</span> |
| <span class="source-line-no">096</span><span id="line-96"></span> |
| <span class="source-line-no">097</span><span id="line-97"> private Channel serverChannel;</span> |
| <span class="source-line-no">098</span><span id="line-98"></span> |
| <span class="source-line-no">099</span><span id="line-99"> private ChannelGroup channelGroup;</span> |
| <span class="source-line-no">100</span><span id="line-100"></span> |
| <span class="source-line-no">101</span><span id="line-101"> public HttpProxyExample(Configuration conf, int port) {</span> |
| <span class="source-line-no">102</span><span id="line-102"> this.conf = conf;</span> |
| <span class="source-line-no">103</span><span id="line-103"> this.port = port;</span> |
| <span class="source-line-no">104</span><span id="line-104"> }</span> |
| <span class="source-line-no">105</span><span id="line-105"></span> |
| <span class="source-line-no">106</span><span id="line-106"> private static final class Params {</span> |
| <span class="source-line-no">107</span><span id="line-107"> public final String table;</span> |
| <span class="source-line-no">108</span><span id="line-108"></span> |
| <span class="source-line-no">109</span><span id="line-109"> public final String row;</span> |
| <span class="source-line-no">110</span><span id="line-110"></span> |
| <span class="source-line-no">111</span><span id="line-111"> public final String family;</span> |
| <span class="source-line-no">112</span><span id="line-112"></span> |
| <span class="source-line-no">113</span><span id="line-113"> public final String qualifier;</span> |
| <span class="source-line-no">114</span><span id="line-114"></span> |
| <span class="source-line-no">115</span><span id="line-115"> public Params(String table, String row, String family, String qualifier) {</span> |
| <span class="source-line-no">116</span><span id="line-116"> this.table = table;</span> |
| <span class="source-line-no">117</span><span id="line-117"> this.row = row;</span> |
| <span class="source-line-no">118</span><span id="line-118"> this.family = family;</span> |
| <span class="source-line-no">119</span><span id="line-119"> this.qualifier = qualifier;</span> |
| <span class="source-line-no">120</span><span id="line-120"> }</span> |
| <span class="source-line-no">121</span><span id="line-121"> }</span> |
| <span class="source-line-no">122</span><span id="line-122"></span> |
| <span class="source-line-no">123</span><span id="line-123"> private static final class RequestHandler extends SimpleChannelInboundHandler<FullHttpRequest> {</span> |
| <span class="source-line-no">124</span><span id="line-124"></span> |
| <span class="source-line-no">125</span><span id="line-125"> private final AsyncConnection conn;</span> |
| <span class="source-line-no">126</span><span id="line-126"></span> |
| <span class="source-line-no">127</span><span id="line-127"> private final ChannelGroup channelGroup;</span> |
| <span class="source-line-no">128</span><span id="line-128"></span> |
| <span class="source-line-no">129</span><span id="line-129"> public RequestHandler(AsyncConnection conn, ChannelGroup channelGroup) {</span> |
| <span class="source-line-no">130</span><span id="line-130"> this.conn = conn;</span> |
| <span class="source-line-no">131</span><span id="line-131"> this.channelGroup = channelGroup;</span> |
| <span class="source-line-no">132</span><span id="line-132"> }</span> |
| <span class="source-line-no">133</span><span id="line-133"></span> |
| <span class="source-line-no">134</span><span id="line-134"> @Override</span> |
| <span class="source-line-no">135</span><span id="line-135"> public void channelActive(ChannelHandlerContext ctx) {</span> |
| <span class="source-line-no">136</span><span id="line-136"> channelGroup.add(ctx.channel());</span> |
| <span class="source-line-no">137</span><span id="line-137"> ctx.fireChannelActive();</span> |
| <span class="source-line-no">138</span><span id="line-138"> }</span> |
| <span class="source-line-no">139</span><span id="line-139"></span> |
| <span class="source-line-no">140</span><span id="line-140"> @Override</span> |
| <span class="source-line-no">141</span><span id="line-141"> public void channelInactive(ChannelHandlerContext ctx) {</span> |
| <span class="source-line-no">142</span><span id="line-142"> channelGroup.remove(ctx.channel());</span> |
| <span class="source-line-no">143</span><span id="line-143"> ctx.fireChannelInactive();</span> |
| <span class="source-line-no">144</span><span id="line-144"> }</span> |
| <span class="source-line-no">145</span><span id="line-145"></span> |
| <span class="source-line-no">146</span><span id="line-146"> private void write(ChannelHandlerContext ctx, HttpResponseStatus status) {</span> |
| <span class="source-line-no">147</span><span id="line-147"> write(ctx, status, null);</span> |
| <span class="source-line-no">148</span><span id="line-148"> }</span> |
| <span class="source-line-no">149</span><span id="line-149"></span> |
| <span class="source-line-no">150</span><span id="line-150"> private void write(ChannelHandlerContext ctx, HttpResponseStatus status, String content) {</span> |
| <span class="source-line-no">151</span><span id="line-151"> DefaultFullHttpResponse resp;</span> |
| <span class="source-line-no">152</span><span id="line-152"> if (content != null) {</span> |
| <span class="source-line-no">153</span><span id="line-153"> ByteBuf buf = ctx.alloc().buffer().writeBytes(Bytes.toBytes(content));</span> |
| <span class="source-line-no">154</span><span id="line-154"> resp = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, status, buf);</span> |
| <span class="source-line-no">155</span><span id="line-155"> resp.headers().set(HttpHeaderNames.CONTENT_LENGTH, buf.readableBytes());</span> |
| <span class="source-line-no">156</span><span id="line-156"> } else {</span> |
| <span class="source-line-no">157</span><span id="line-157"> resp = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, status);</span> |
| <span class="source-line-no">158</span><span id="line-158"> }</span> |
| <span class="source-line-no">159</span><span id="line-159"> resp.headers().set(HttpHeaderNames.CONTENT_TYPE, "text-plain; charset=UTF-8");</span> |
| <span class="source-line-no">160</span><span id="line-160"> safeWriteAndFlush(ctx, resp);</span> |
| <span class="source-line-no">161</span><span id="line-161"> }</span> |
| <span class="source-line-no">162</span><span id="line-162"></span> |
| <span class="source-line-no">163</span><span id="line-163"> private Params parse(FullHttpRequest req) {</span> |
| <span class="source-line-no">164</span><span id="line-164"> List<String> components =</span> |
| <span class="source-line-no">165</span><span id="line-165"> Splitter.on('/').splitToList(new QueryStringDecoder(req.uri()).path());</span> |
| <span class="source-line-no">166</span><span id="line-166"> Preconditions.checkArgument(components.size() == 4, "Unrecognized uri: %s", req.uri());</span> |
| <span class="source-line-no">167</span><span id="line-167"> Iterator<String> i = components.iterator();</span> |
| <span class="source-line-no">168</span><span id="line-168"> // path is start with '/' so split will give an empty component</span> |
| <span class="source-line-no">169</span><span id="line-169"> i.next();</span> |
| <span class="source-line-no">170</span><span id="line-170"> String table = i.next();</span> |
| <span class="source-line-no">171</span><span id="line-171"> String row = i.next();</span> |
| <span class="source-line-no">172</span><span id="line-172"> List<String> cfAndCq = Splitter.on(':').splitToList(i.next());</span> |
| <span class="source-line-no">173</span><span id="line-173"> Preconditions.checkArgument(cfAndCq.size() == 2, "Unrecognized uri: %s", req.uri());</span> |
| <span class="source-line-no">174</span><span id="line-174"> i = cfAndCq.iterator();</span> |
| <span class="source-line-no">175</span><span id="line-175"> String family = i.next();</span> |
| <span class="source-line-no">176</span><span id="line-176"> String qualifier = i.next();</span> |
| <span class="source-line-no">177</span><span id="line-177"> return new Params(table, row, family, qualifier);</span> |
| <span class="source-line-no">178</span><span id="line-178"> }</span> |
| <span class="source-line-no">179</span><span id="line-179"></span> |
| <span class="source-line-no">180</span><span id="line-180"> private void get(ChannelHandlerContext ctx, FullHttpRequest req) {</span> |
| <span class="source-line-no">181</span><span id="line-181"> Params params = parse(req);</span> |
| <span class="source-line-no">182</span><span id="line-182"> addListener(</span> |
| <span class="source-line-no">183</span><span id="line-183"> conn.getTable(TableName.valueOf(params.table)).get(new Get(Bytes.toBytes(params.row))</span> |
| <span class="source-line-no">184</span><span id="line-184"> .addColumn(Bytes.toBytes(params.family), Bytes.toBytes(params.qualifier))),</span> |
| <span class="source-line-no">185</span><span id="line-185"> (r, e) -> {</span> |
| <span class="source-line-no">186</span><span id="line-186"> if (e != null) {</span> |
| <span class="source-line-no">187</span><span id="line-187"> exceptionCaught(ctx, e);</span> |
| <span class="source-line-no">188</span><span id="line-188"> } else {</span> |
| <span class="source-line-no">189</span><span id="line-189"> byte[] value =</span> |
| <span class="source-line-no">190</span><span id="line-190"> r.getValue(Bytes.toBytes(params.family), Bytes.toBytes(params.qualifier));</span> |
| <span class="source-line-no">191</span><span id="line-191"> if (value != null) {</span> |
| <span class="source-line-no">192</span><span id="line-192"> write(ctx, HttpResponseStatus.OK, Bytes.toStringBinary(value));</span> |
| <span class="source-line-no">193</span><span id="line-193"> } else {</span> |
| <span class="source-line-no">194</span><span id="line-194"> write(ctx, HttpResponseStatus.NOT_FOUND);</span> |
| <span class="source-line-no">195</span><span id="line-195"> }</span> |
| <span class="source-line-no">196</span><span id="line-196"> }</span> |
| <span class="source-line-no">197</span><span id="line-197"> });</span> |
| <span class="source-line-no">198</span><span id="line-198"> }</span> |
| <span class="source-line-no">199</span><span id="line-199"></span> |
| <span class="source-line-no">200</span><span id="line-200"> private void put(ChannelHandlerContext ctx, FullHttpRequest req) {</span> |
| <span class="source-line-no">201</span><span id="line-201"> Params params = parse(req);</span> |
| <span class="source-line-no">202</span><span id="line-202"> byte[] value = new byte[req.content().readableBytes()];</span> |
| <span class="source-line-no">203</span><span id="line-203"> req.content().readBytes(value);</span> |
| <span class="source-line-no">204</span><span id="line-204"> addListener(</span> |
| <span class="source-line-no">205</span><span id="line-205"> conn.getTable(TableName.valueOf(params.table)).put(new Put(Bytes.toBytes(params.row))</span> |
| <span class="source-line-no">206</span><span id="line-206"> .addColumn(Bytes.toBytes(params.family), Bytes.toBytes(params.qualifier), value)),</span> |
| <span class="source-line-no">207</span><span id="line-207"> (r, e) -> {</span> |
| <span class="source-line-no">208</span><span id="line-208"> if (e != null) {</span> |
| <span class="source-line-no">209</span><span id="line-209"> exceptionCaught(ctx, e);</span> |
| <span class="source-line-no">210</span><span id="line-210"> } else {</span> |
| <span class="source-line-no">211</span><span id="line-211"> write(ctx, HttpResponseStatus.OK);</span> |
| <span class="source-line-no">212</span><span id="line-212"> }</span> |
| <span class="source-line-no">213</span><span id="line-213"> });</span> |
| <span class="source-line-no">214</span><span id="line-214"> }</span> |
| <span class="source-line-no">215</span><span id="line-215"></span> |
| <span class="source-line-no">216</span><span id="line-216"> @Override</span> |
| <span class="source-line-no">217</span><span id="line-217"> protected void channelRead0(ChannelHandlerContext ctx, FullHttpRequest req) {</span> |
| <span class="source-line-no">218</span><span id="line-218"> switch (req.method().name()) {</span> |
| <span class="source-line-no">219</span><span id="line-219"> case "GET":</span> |
| <span class="source-line-no">220</span><span id="line-220"> get(ctx, req);</span> |
| <span class="source-line-no">221</span><span id="line-221"> break;</span> |
| <span class="source-line-no">222</span><span id="line-222"> case "PUT":</span> |
| <span class="source-line-no">223</span><span id="line-223"> put(ctx, req);</span> |
| <span class="source-line-no">224</span><span id="line-224"> break;</span> |
| <span class="source-line-no">225</span><span id="line-225"> default:</span> |
| <span class="source-line-no">226</span><span id="line-226"> write(ctx, HttpResponseStatus.METHOD_NOT_ALLOWED);</span> |
| <span class="source-line-no">227</span><span id="line-227"> break;</span> |
| <span class="source-line-no">228</span><span id="line-228"> }</span> |
| <span class="source-line-no">229</span><span id="line-229"> }</span> |
| <span class="source-line-no">230</span><span id="line-230"></span> |
| <span class="source-line-no">231</span><span id="line-231"> @Override</span> |
| <span class="source-line-no">232</span><span id="line-232"> public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {</span> |
| <span class="source-line-no">233</span><span id="line-233"> if (cause instanceof IllegalArgumentException) {</span> |
| <span class="source-line-no">234</span><span id="line-234"> write(ctx, HttpResponseStatus.BAD_REQUEST, cause.getMessage());</span> |
| <span class="source-line-no">235</span><span id="line-235"> } else {</span> |
| <span class="source-line-no">236</span><span id="line-236"> write(ctx, HttpResponseStatus.INTERNAL_SERVER_ERROR,</span> |
| <span class="source-line-no">237</span><span id="line-237"> Throwables.getStackTraceAsString(cause));</span> |
| <span class="source-line-no">238</span><span id="line-238"> }</span> |
| <span class="source-line-no">239</span><span id="line-239"> }</span> |
| <span class="source-line-no">240</span><span id="line-240"> }</span> |
| <span class="source-line-no">241</span><span id="line-241"></span> |
| <span class="source-line-no">242</span><span id="line-242"> public void start() throws InterruptedException, ExecutionException {</span> |
| <span class="source-line-no">243</span><span id="line-243"> NettyRpcClientConfigHelper.setEventLoopConfig(conf, workerGroup, NioSocketChannel.class);</span> |
| <span class="source-line-no">244</span><span id="line-244"> conn = ConnectionFactory.createAsyncConnection(conf).get();</span> |
| <span class="source-line-no">245</span><span id="line-245"> channelGroup = new DefaultChannelGroup(GlobalEventExecutor.INSTANCE);</span> |
| <span class="source-line-no">246</span><span id="line-246"> serverChannel =</span> |
| <span class="source-line-no">247</span><span id="line-247"> new ServerBootstrap().group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)</span> |
| <span class="source-line-no">248</span><span id="line-248"> .childOption(ChannelOption.TCP_NODELAY, true).childOption(ChannelOption.SO_REUSEADDR, true)</span> |
| <span class="source-line-no">249</span><span id="line-249"> .childHandler(new ChannelInitializer<Channel>() {</span> |
| <span class="source-line-no">250</span><span id="line-250"></span> |
| <span class="source-line-no">251</span><span id="line-251"> @Override</span> |
| <span class="source-line-no">252</span><span id="line-252"> protected void initChannel(Channel ch) throws Exception {</span> |
| <span class="source-line-no">253</span><span id="line-253"> ch.pipeline().addFirst(new HttpServerCodec(), new HttpObjectAggregator(4 * 1024 * 1024),</span> |
| <span class="source-line-no">254</span><span id="line-254"> new RequestHandler(conn, channelGroup));</span> |
| <span class="source-line-no">255</span><span id="line-255"> }</span> |
| <span class="source-line-no">256</span><span id="line-256"> }).bind(port).syncUninterruptibly().channel();</span> |
| <span class="source-line-no">257</span><span id="line-257"> }</span> |
| <span class="source-line-no">258</span><span id="line-258"></span> |
| <span class="source-line-no">259</span><span id="line-259"> @SuppressWarnings("FutureReturnValueIgnored")</span> |
| <span class="source-line-no">260</span><span id="line-260"> public void join() {</span> |
| <span class="source-line-no">261</span><span id="line-261"> serverChannel.closeFuture().awaitUninterruptibly();</span> |
| <span class="source-line-no">262</span><span id="line-262"> }</span> |
| <span class="source-line-no">263</span><span id="line-263"></span> |
| <span class="source-line-no">264</span><span id="line-264"> public int port() {</span> |
| <span class="source-line-no">265</span><span id="line-265"> if (serverChannel == null) {</span> |
| <span class="source-line-no">266</span><span id="line-266"> return port;</span> |
| <span class="source-line-no">267</span><span id="line-267"> } else {</span> |
| <span class="source-line-no">268</span><span id="line-268"> return ((InetSocketAddress) serverChannel.localAddress()).getPort();</span> |
| <span class="source-line-no">269</span><span id="line-269"> }</span> |
| <span class="source-line-no">270</span><span id="line-270"> }</span> |
| <span class="source-line-no">271</span><span id="line-271"></span> |
| <span class="source-line-no">272</span><span id="line-272"> @SuppressWarnings("FutureReturnValueIgnored")</span> |
| <span class="source-line-no">273</span><span id="line-273"> public void stop() throws IOException {</span> |
| <span class="source-line-no">274</span><span id="line-274"> serverChannel.close().syncUninterruptibly();</span> |
| <span class="source-line-no">275</span><span id="line-275"> serverChannel = null;</span> |
| <span class="source-line-no">276</span><span id="line-276"> channelGroup.close().syncUninterruptibly();</span> |
| <span class="source-line-no">277</span><span id="line-277"> channelGroup = null;</span> |
| <span class="source-line-no">278</span><span id="line-278"> conn.close();</span> |
| <span class="source-line-no">279</span><span id="line-279"> conn = null;</span> |
| <span class="source-line-no">280</span><span id="line-280"> }</span> |
| <span class="source-line-no">281</span><span id="line-281"></span> |
| <span class="source-line-no">282</span><span id="line-282"> public static void main(String[] args) throws InterruptedException, ExecutionException {</span> |
| <span class="source-line-no">283</span><span id="line-283"> int port = Integer.parseInt(args[0]);</span> |
| <span class="source-line-no">284</span><span id="line-284"> HttpProxyExample proxy = new HttpProxyExample(HBaseConfiguration.create(), port);</span> |
| <span class="source-line-no">285</span><span id="line-285"> proxy.start();</span> |
| <span class="source-line-no">286</span><span id="line-286"> proxy.join();</span> |
| <span class="source-line-no">287</span><span id="line-287"> }</span> |
| <span class="source-line-no">288</span><span id="line-288">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
