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From git-site-r...@apache.org
Subject [24/51] [partial] hbase-site git commit: Published site at 82d554e3783372cc6b05489452c815b57c06f6cd.
Date Mon, 15 May 2017 14:59:15 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f55ebeaa/devapidocs/src-html/org/apache/hadoop/hbase/ipc/NettyServerRpcConnection.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/ipc/NettyServerRpcConnection.html
b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/NettyServerRpcConnection.html
new file mode 100644
index 0000000..4c7720b
--- /dev/null
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/NettyServerRpcConnection.html
@@ -0,0 +1,278 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html lang="en">
+<head>
+<title>Source code</title>
+<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style">
+</head>
+<body>
+<div class="sourceContainer">
+<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
+<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation
(ASF) under one<a name="line.2"></a>
+<span class="sourceLineNo">003</span> * or more contributor license agreements.
 See the NOTICE file<a name="line.3"></a>
+<span class="sourceLineNo">004</span> * distributed with this work for additional
information<a name="line.4"></a>
+<span class="sourceLineNo">005</span> * regarding copyright ownership.  The ASF
licenses this file<a name="line.5"></a>
+<span class="sourceLineNo">006</span> * to you under the Apache License, Version
2.0 (the<a name="line.6"></a>
+<span class="sourceLineNo">007</span> * "License"); you may not use this file
except in compliance<a name="line.7"></a>
+<span class="sourceLineNo">008</span> * with the License.  You may obtain a copy
of the License at<a name="line.8"></a>
+<span class="sourceLineNo">009</span> *<a name="line.9"></a>
+<span class="sourceLineNo">010</span> *     http://www.apache.org/licenses/LICENSE-2.0<a
name="line.10"></a>
+<span class="sourceLineNo">011</span> *<a name="line.11"></a>
+<span class="sourceLineNo">012</span> * Unless required by applicable law or
agreed to in writing, software<a name="line.12"></a>
+<span class="sourceLineNo">013</span> * distributed under the License is distributed
on an "AS IS" BASIS,<a name="line.13"></a>
+<span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.<a name="line.14"></a>
+<span class="sourceLineNo">015</span> * See the License for the specific language
governing permissions and<a name="line.15"></a>
+<span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a>
+<span class="sourceLineNo">017</span> */<a name="line.17"></a>
+<span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.ipc;<a
name="line.18"></a>
+<span class="sourceLineNo">019</span><a name="line.19"></a>
+<span class="sourceLineNo">020</span>import io.netty.buffer.ByteBuf;<a name="line.20"></a>
+<span class="sourceLineNo">021</span>import io.netty.channel.Channel;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import io.netty.channel.ChannelFutureListener;<a
name="line.22"></a>
+<span class="sourceLineNo">023</span><a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.IOException;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.net.InetAddress;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.net.InetSocketAddress;<a
name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.nio.ByteBuffer;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import java.util.Arrays;<a name="line.28"></a>
+<span class="sourceLineNo">029</span><a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.CellScanner;<a
name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.HConstants;<a
name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a
name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.ipc.RpcServer.CallCleanup;<a
name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.nio.ByteBuff;<a
name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.nio.SingleByteBuff;<a
name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.security.AccessDeniedException;<a
name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.security.AuthMethod;<a
name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.security.SaslStatus;<a
name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.security.SaslUtil;<a
name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.BlockingService;<a
name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.Message;<a
name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.MethodDescriptor;<a
name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.RequestHeader;<a
name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.util.Bytes;<a
name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.io.IntWritable;<a
name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.htrace.TraceInfo;<a
name="line.46"></a>
+<span class="sourceLineNo">047</span><a name="line.47"></a>
+<span class="sourceLineNo">048</span>/**<a name="line.48"></a>
+<span class="sourceLineNo">049</span> * RpcConnection implementation for netty
rpc server.<a name="line.49"></a>
+<span class="sourceLineNo">050</span> */<a name="line.50"></a>
+<span class="sourceLineNo">051</span>@InterfaceAudience.Private<a name="line.51"></a>
+<span class="sourceLineNo">052</span>class NettyServerRpcConnection extends ServerRpcConnection
{<a name="line.52"></a>
+<span class="sourceLineNo">053</span><a name="line.53"></a>
+<span class="sourceLineNo">054</span>  final Channel channel;<a name="line.54"></a>
+<span class="sourceLineNo">055</span><a name="line.55"></a>
+<span class="sourceLineNo">056</span>  NettyServerRpcConnection(NettyRpcServer
rpcServer, Channel channel) {<a name="line.56"></a>
+<span class="sourceLineNo">057</span>    super(rpcServer);<a name="line.57"></a>
+<span class="sourceLineNo">058</span>    this.channel = channel;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>    InetSocketAddress inetSocketAddress
= ((InetSocketAddress) channel.remoteAddress());<a name="line.59"></a>
+<span class="sourceLineNo">060</span>    this.addr = inetSocketAddress.getAddress();<a
name="line.60"></a>
+<span class="sourceLineNo">061</span>    if (addr == null) {<a name="line.61"></a>
+<span class="sourceLineNo">062</span>      this.hostAddress = "*Unknown*";<a
name="line.62"></a>
+<span class="sourceLineNo">063</span>    } else {<a name="line.63"></a>
+<span class="sourceLineNo">064</span>      this.hostAddress = inetSocketAddress.getAddress().getHostAddress();<a
name="line.64"></a>
+<span class="sourceLineNo">065</span>    }<a name="line.65"></a>
+<span class="sourceLineNo">066</span>    this.remotePort = inetSocketAddress.getPort();<a
name="line.66"></a>
+<span class="sourceLineNo">067</span>    this.saslCall = new NettyServerCall(SASL_CALLID,
null, null, null, null, null, this, 0, null,<a name="line.67"></a>
+<span class="sourceLineNo">068</span>        null, System.currentTimeMillis(),
0, rpcServer.reservoir, rpcServer.cellBlockBuilder, null);<a name="line.68"></a>
+<span class="sourceLineNo">069</span>    this.setConnectionHeaderResponseCall
= new NettyServerCall(CONNECTION_HEADER_RESPONSE_CALLID,<a name="line.69"></a>
+<span class="sourceLineNo">070</span>        null, null, null, null, null, this,
0, null, null, System.currentTimeMillis(), 0,<a name="line.70"></a>
+<span class="sourceLineNo">071</span>        rpcServer.reservoir, rpcServer.cellBlockBuilder,
null);<a name="line.71"></a>
+<span class="sourceLineNo">072</span>    this.authFailedCall = new NettyServerCall(AUTHORIZATION_FAILED_CALLID,
null, null, null, null,<a name="line.72"></a>
+<span class="sourceLineNo">073</span>        null, this, 0, null, null, System.currentTimeMillis(),
0, rpcServer.reservoir,<a name="line.73"></a>
+<span class="sourceLineNo">074</span>        rpcServer.cellBlockBuilder, null);<a
name="line.74"></a>
+<span class="sourceLineNo">075</span>  }<a name="line.75"></a>
+<span class="sourceLineNo">076</span><a name="line.76"></a>
+<span class="sourceLineNo">077</span>  void readPreamble(ByteBuf buffer) throws
IOException {<a name="line.77"></a>
+<span class="sourceLineNo">078</span>    byte[] rpcHead = { buffer.readByte(),
buffer.readByte(), buffer.readByte(), buffer.readByte() };<a name="line.78"></a>
+<span class="sourceLineNo">079</span>    if (!Arrays.equals(HConstants.RPC_HEADER,
rpcHead)) {<a name="line.79"></a>
+<span class="sourceLineNo">080</span>      doBadPreambleHandling("Expected HEADER="
+ Bytes.toStringBinary(HConstants.RPC_HEADER) +<a name="line.80"></a>
+<span class="sourceLineNo">081</span>          " but received HEADER=" + Bytes.toStringBinary(rpcHead)
+ " from " + toString());<a name="line.81"></a>
+<span class="sourceLineNo">082</span>      return;<a name="line.82"></a>
+<span class="sourceLineNo">083</span>    }<a name="line.83"></a>
+<span class="sourceLineNo">084</span>    // Now read the next two bytes, the
version and the auth to use.<a name="line.84"></a>
+<span class="sourceLineNo">085</span>    int version = buffer.readByte();<a
name="line.85"></a>
+<span class="sourceLineNo">086</span>    byte authbyte = buffer.readByte();<a
name="line.86"></a>
+<span class="sourceLineNo">087</span>    this.authMethod = AuthMethod.valueOf(authbyte);<a
name="line.87"></a>
+<span class="sourceLineNo">088</span>    if (version != NettyRpcServer.CURRENT_VERSION)
{<a name="line.88"></a>
+<span class="sourceLineNo">089</span>      String msg = getFatalConnectionString(version,
authbyte);<a name="line.89"></a>
+<span class="sourceLineNo">090</span>      doBadPreambleHandling(msg, new WrongVersionException(msg));<a
name="line.90"></a>
+<span class="sourceLineNo">091</span>      return;<a name="line.91"></a>
+<span class="sourceLineNo">092</span>    }<a name="line.92"></a>
+<span class="sourceLineNo">093</span>    if (authMethod == null) {<a name="line.93"></a>
+<span class="sourceLineNo">094</span>      String msg = getFatalConnectionString(version,
authbyte);<a name="line.94"></a>
+<span class="sourceLineNo">095</span>      doBadPreambleHandling(msg, new BadAuthException(msg));<a
name="line.95"></a>
+<span class="sourceLineNo">096</span>      return;<a name="line.96"></a>
+<span class="sourceLineNo">097</span>    }<a name="line.97"></a>
+<span class="sourceLineNo">098</span>    if (this.rpcServer.isSecurityEnabled
&amp;&amp; authMethod == AuthMethod.SIMPLE) {<a name="line.98"></a>
+<span class="sourceLineNo">099</span>      if (this.rpcServer.allowFallbackToSimpleAuth)
{<a name="line.99"></a>
+<span class="sourceLineNo">100</span>        this.rpcServer.metrics.authenticationFallback();<a
name="line.100"></a>
+<span class="sourceLineNo">101</span>        authenticatedWithFallback = true;<a
name="line.101"></a>
+<span class="sourceLineNo">102</span>      } else {<a name="line.102"></a>
+<span class="sourceLineNo">103</span>        AccessDeniedException ae = new AccessDeniedException("Authentication
is required");<a name="line.103"></a>
+<span class="sourceLineNo">104</span>        this.rpcServer.setupResponse(authFailedResponse,
authFailedCall, ae, ae.getMessage());<a name="line.104"></a>
+<span class="sourceLineNo">105</span>        ((NettyServerCall) authFailedCall).sendResponseIfReady(ChannelFutureListener.CLOSE);<a
name="line.105"></a>
+<span class="sourceLineNo">106</span>        return;<a name="line.106"></a>
+<span class="sourceLineNo">107</span>      }<a name="line.107"></a>
+<span class="sourceLineNo">108</span>    }<a name="line.108"></a>
+<span class="sourceLineNo">109</span>    if (!this.rpcServer.isSecurityEnabled
&amp;&amp; authMethod != AuthMethod.SIMPLE) {<a name="line.109"></a>
+<span class="sourceLineNo">110</span>      doRawSaslReply(SaslStatus.SUCCESS,
new IntWritable(SaslUtil.SWITCH_TO_SIMPLE_AUTH), null,<a name="line.110"></a>
+<span class="sourceLineNo">111</span>        null);<a name="line.111"></a>
+<span class="sourceLineNo">112</span>      authMethod = AuthMethod.SIMPLE;<a
name="line.112"></a>
+<span class="sourceLineNo">113</span>      // client has already sent the initial
Sasl message and we<a name="line.113"></a>
+<span class="sourceLineNo">114</span>      // should ignore it. Both client and
server should fall back<a name="line.114"></a>
+<span class="sourceLineNo">115</span>      // to simple auth from now on.<a
name="line.115"></a>
+<span class="sourceLineNo">116</span>      skipInitialSaslHandshake = true;<a
name="line.116"></a>
+<span class="sourceLineNo">117</span>    }<a name="line.117"></a>
+<span class="sourceLineNo">118</span>    if (authMethod != AuthMethod.SIMPLE)
{<a name="line.118"></a>
+<span class="sourceLineNo">119</span>      useSasl = true;<a name="line.119"></a>
+<span class="sourceLineNo">120</span>    }<a name="line.120"></a>
+<span class="sourceLineNo">121</span>    connectionPreambleRead = true;<a
name="line.121"></a>
+<span class="sourceLineNo">122</span>  }<a name="line.122"></a>
+<span class="sourceLineNo">123</span><a name="line.123"></a>
+<span class="sourceLineNo">124</span>  private void doBadPreambleHandling(final
String msg) throws IOException {<a name="line.124"></a>
+<span class="sourceLineNo">125</span>    doBadPreambleHandling(msg, new FatalConnectionException(msg));<a
name="line.125"></a>
+<span class="sourceLineNo">126</span>  }<a name="line.126"></a>
+<span class="sourceLineNo">127</span><a name="line.127"></a>
+<span class="sourceLineNo">128</span>  private void doBadPreambleHandling(final
String msg, final Exception e) throws IOException {<a name="line.128"></a>
+<span class="sourceLineNo">129</span>    NettyRpcServer.LOG.warn(msg);<a name="line.129"></a>
+<span class="sourceLineNo">130</span>    NettyServerCall fakeCall = new NettyServerCall(-1,
null, null, null, null, null, this, -1, null,<a name="line.130"></a>
+<span class="sourceLineNo">131</span>        null, System.currentTimeMillis(),
0, this.rpcServer.reservoir,<a name="line.131"></a>
+<span class="sourceLineNo">132</span>        this.rpcServer.cellBlockBuilder,
null);<a name="line.132"></a>
+<span class="sourceLineNo">133</span>    this.rpcServer.setupResponse(null, fakeCall,
e, msg);<a name="line.133"></a>
+<span class="sourceLineNo">134</span>    // closes out the connection.<a name="line.134"></a>
+<span class="sourceLineNo">135</span>    fakeCall.sendResponseIfReady(ChannelFutureListener.CLOSE);<a
name="line.135"></a>
+<span class="sourceLineNo">136</span>  }<a name="line.136"></a>
+<span class="sourceLineNo">137</span><a name="line.137"></a>
+<span class="sourceLineNo">138</span>  void process(final ByteBuf buf) throws
IOException, InterruptedException {<a name="line.138"></a>
+<span class="sourceLineNo">139</span>    if (connectionHeaderRead) {<a name="line.139"></a>
+<span class="sourceLineNo">140</span>      this.callCleanup = new RpcServer.CallCleanup()
{<a name="line.140"></a>
+<span class="sourceLineNo">141</span>        @Override<a name="line.141"></a>
+<span class="sourceLineNo">142</span>        public void run() {<a name="line.142"></a>
+<span class="sourceLineNo">143</span>          buf.release();<a name="line.143"></a>
+<span class="sourceLineNo">144</span>        }<a name="line.144"></a>
+<span class="sourceLineNo">145</span>      };<a name="line.145"></a>
+<span class="sourceLineNo">146</span>      process(new SingleByteBuff(buf.nioBuffer()));<a
name="line.146"></a>
+<span class="sourceLineNo">147</span>    } else {<a name="line.147"></a>
+<span class="sourceLineNo">148</span>      byte[] data = new byte[buf.readableBytes()];<a
name="line.148"></a>
+<span class="sourceLineNo">149</span>      buf.readBytes(data, 0, data.length);<a
name="line.149"></a>
+<span class="sourceLineNo">150</span>      ByteBuffer connectionHeader = ByteBuffer.wrap(data);<a
name="line.150"></a>
+<span class="sourceLineNo">151</span>      buf.release();<a name="line.151"></a>
+<span class="sourceLineNo">152</span>      process(connectionHeader);<a name="line.152"></a>
+<span class="sourceLineNo">153</span>    }<a name="line.153"></a>
+<span class="sourceLineNo">154</span>  }<a name="line.154"></a>
+<span class="sourceLineNo">155</span><a name="line.155"></a>
+<span class="sourceLineNo">156</span>  void process(ByteBuffer buf) throws IOException,
InterruptedException {<a name="line.156"></a>
+<span class="sourceLineNo">157</span>    process(new SingleByteBuff(buf));<a
name="line.157"></a>
+<span class="sourceLineNo">158</span>  }<a name="line.158"></a>
+<span class="sourceLineNo">159</span><a name="line.159"></a>
+<span class="sourceLineNo">160</span>  void process(ByteBuff buf) throws IOException,
InterruptedException {<a name="line.160"></a>
+<span class="sourceLineNo">161</span>    try {<a name="line.161"></a>
+<span class="sourceLineNo">162</span>      if (skipInitialSaslHandshake) {<a
name="line.162"></a>
+<span class="sourceLineNo">163</span>        skipInitialSaslHandshake = false;<a
name="line.163"></a>
+<span class="sourceLineNo">164</span>        if (callCleanup != null) {<a
name="line.164"></a>
+<span class="sourceLineNo">165</span>          callCleanup.run();<a name="line.165"></a>
+<span class="sourceLineNo">166</span>        }<a name="line.166"></a>
+<span class="sourceLineNo">167</span>        return;<a name="line.167"></a>
+<span class="sourceLineNo">168</span>      }<a name="line.168"></a>
+<span class="sourceLineNo">169</span><a name="line.169"></a>
+<span class="sourceLineNo">170</span>      if (useSasl) {<a name="line.170"></a>
+<span class="sourceLineNo">171</span>        saslReadAndProcess(buf);<a name="line.171"></a>
+<span class="sourceLineNo">172</span>      } else {<a name="line.172"></a>
+<span class="sourceLineNo">173</span>        processOneRpc(buf);<a name="line.173"></a>
+<span class="sourceLineNo">174</span>      }<a name="line.174"></a>
+<span class="sourceLineNo">175</span>    } catch (Exception e) {<a name="line.175"></a>
+<span class="sourceLineNo">176</span>      if (callCleanup != null) {<a name="line.176"></a>
+<span class="sourceLineNo">177</span>        callCleanup.run();<a name="line.177"></a>
+<span class="sourceLineNo">178</span>      }<a name="line.178"></a>
+<span class="sourceLineNo">179</span>      throw e;<a name="line.179"></a>
+<span class="sourceLineNo">180</span>    } finally {<a name="line.180"></a>
+<span class="sourceLineNo">181</span>      this.callCleanup = null;<a name="line.181"></a>
+<span class="sourceLineNo">182</span>    }<a name="line.182"></a>
+<span class="sourceLineNo">183</span>  }<a name="line.183"></a>
+<span class="sourceLineNo">184</span><a name="line.184"></a>
+<span class="sourceLineNo">185</span>  @Override<a name="line.185"></a>
+<span class="sourceLineNo">186</span>  public synchronized void close() {<a
name="line.186"></a>
+<span class="sourceLineNo">187</span>    disposeSasl();<a name="line.187"></a>
+<span class="sourceLineNo">188</span>    channel.close();<a name="line.188"></a>
+<span class="sourceLineNo">189</span>    callCleanup = null;<a name="line.189"></a>
+<span class="sourceLineNo">190</span>  }<a name="line.190"></a>
+<span class="sourceLineNo">191</span><a name="line.191"></a>
+<span class="sourceLineNo">192</span>  @Override<a name="line.192"></a>
+<span class="sourceLineNo">193</span>  public boolean isConnectionOpen() {<a
name="line.193"></a>
+<span class="sourceLineNo">194</span>    return channel.isOpen();<a name="line.194"></a>
+<span class="sourceLineNo">195</span>  }<a name="line.195"></a>
+<span class="sourceLineNo">196</span><a name="line.196"></a>
+<span class="sourceLineNo">197</span>  @Override<a name="line.197"></a>
+<span class="sourceLineNo">198</span>  public NettyServerCall createCall(int
id, final BlockingService service,<a name="line.198"></a>
+<span class="sourceLineNo">199</span>      final MethodDescriptor md, RequestHeader
header, Message param, CellScanner cellScanner,<a name="line.199"></a>
+<span class="sourceLineNo">200</span>      long size, TraceInfo tinfo, final
InetAddress remoteAddress, int timeout,<a name="line.200"></a>
+<span class="sourceLineNo">201</span>      CallCleanup reqCleanup) {<a name="line.201"></a>
+<span class="sourceLineNo">202</span>    return new NettyServerCall(id, service,
md, header, param, cellScanner, this, size, tinfo,<a name="line.202"></a>
+<span class="sourceLineNo">203</span>        remoteAddress, System.currentTimeMillis(),
timeout, this.rpcServer.reservoir,<a name="line.203"></a>
+<span class="sourceLineNo">204</span>        this.rpcServer.cellBlockBuilder,
reqCleanup);<a name="line.204"></a>
+<span class="sourceLineNo">205</span>  }<a name="line.205"></a>
+<span class="sourceLineNo">206</span>}<a name="line.206"></a>
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+</pre>
+</div>
+</body>
+</html>


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