| <!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 java.io.IOException;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.InputStream;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.net.InetAddress;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.net.Socket;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.nio.ByteBuffer;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.nio.channels.ReadableByteChannel;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.nio.channels.SocketChannel;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.concurrent.ConcurrentLinkedDeque;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.concurrent.atomic.LongAdder;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.concurrent.locks.Lock;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.concurrent.locks.ReentrantLock;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span><a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.CellScanner;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.DoNotRetryIOException;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.VersionInfoUtil;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.exceptions.RequestTooBigException;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.ipc.RpcServer.CallCleanup;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.nio.ByteBuff;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hbase.thirdparty.com.google.protobuf.BlockingService;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hbase.thirdparty.com.google.protobuf.CodedInputStream;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hbase.thirdparty.com.google.protobuf.Descriptors.MethodDescriptor;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hbase.thirdparty.com.google.protobuf.Message;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.RequestHeader;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span><a name="line.45"></a> |
| <span class="sourceLineNo">046</span>/** Reads calls from a connection and queues them for handling. */<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>@edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "VO_VOLATILE_INCREMENT",<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> justification = "False positive according to http://sourceforge.net/p/findbugs/bugs/1032/")<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>@InterfaceAudience.Private<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>class SimpleServerRpcConnection extends ServerRpcConnection {<a name="line.50"></a> |
| <span class="sourceLineNo">051</span><a name="line.51"></a> |
| <span class="sourceLineNo">052</span> final SocketChannel channel;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> private ByteBuff data;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> private ByteBuffer dataLengthBuffer;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> private ByteBuffer preambleBuffer;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> private final LongAdder rpcCount = new LongAdder(); // number of outstanding rpcs<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> private long lastContact;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> private final Socket socket;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> final SimpleRpcServerResponder responder;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span><a name="line.60"></a> |
| <span class="sourceLineNo">061</span> // If initial preamble with version and magic has been read or not.<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> private boolean connectionPreambleRead = false;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> final ConcurrentLinkedDeque<RpcResponse> responseQueue = new ConcurrentLinkedDeque<>();<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> final Lock responseWriteLock = new ReentrantLock();<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> long lastSentTime = -1L;<a name="line.66"></a> |
| <span class="sourceLineNo">067</span><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> public SimpleServerRpcConnection(SimpleRpcServer rpcServer, SocketChannel channel,<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> long lastContact) {<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> super(rpcServer);<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> this.channel = channel;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> this.lastContact = lastContact;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> this.data = null;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> this.dataLengthBuffer = ByteBuffer.allocate(4);<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> this.socket = channel.socket();<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> this.addr = socket.getInetAddress();<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> if (addr == null) {<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> this.hostAddress = "*Unknown*";<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> } else {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> this.hostAddress = addr.getHostAddress();<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> }<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> this.remotePort = socket.getPort();<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> if (rpcServer.socketSendBufferSize != 0) {<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> try {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> socket.setSendBufferSize(rpcServer.socketSendBufferSize);<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> } catch (IOException e) {<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> SimpleRpcServer.LOG.warn(<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> "Connection: unable to set socket send buffer size to " + rpcServer.socketSendBufferSize);<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> }<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> }<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> this.responder = rpcServer.responder;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span><a name="line.93"></a> |
| <span class="sourceLineNo">094</span> public void setLastContact(long lastContact) {<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> this.lastContact = lastContact;<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> }<a name="line.96"></a> |
| <span class="sourceLineNo">097</span><a name="line.97"></a> |
| <span class="sourceLineNo">098</span> public long getLastContact() {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> return lastContact;<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> }<a name="line.100"></a> |
| <span class="sourceLineNo">101</span><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> /* Return true if the connection has no outstanding rpc */<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> boolean isIdle() {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> return rpcCount.sum() == 0;<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> /* Decrement the outstanding RPC count */<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> protected void decRpcCount() {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> rpcCount.decrement();<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<a name="line.110"></a> |
| <span class="sourceLineNo">111</span><a name="line.111"></a> |
| <span class="sourceLineNo">112</span> /* Increment the outstanding RPC count */<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> protected void incRpcCount() {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> rpcCount.increment();<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> }<a name="line.115"></a> |
| <span class="sourceLineNo">116</span><a name="line.116"></a> |
| <span class="sourceLineNo">117</span> private int readPreamble() throws IOException {<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> if (preambleBuffer == null) {<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> preambleBuffer = ByteBuffer.allocate(6);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> int count = this.rpcServer.channelRead(channel, preambleBuffer);<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> if (count < 0 || preambleBuffer.remaining() > 0) {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> return count;<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> preambleBuffer.flip();<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> if (!processPreamble(preambleBuffer)) {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> return -1;<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> }<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> preambleBuffer = null; // do not need it anymore<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> connectionPreambleRead = true;<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> return count;<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> }<a name="line.132"></a> |
| <span class="sourceLineNo">133</span><a name="line.133"></a> |
| <span class="sourceLineNo">134</span> private int read4Bytes() throws IOException {<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> if (this.dataLengthBuffer.remaining() > 0) {<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> return this.rpcServer.channelRead(channel, this.dataLengthBuffer);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> } else {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> return 0;<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> }<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> }<a name="line.140"></a> |
| <span class="sourceLineNo">141</span><a name="line.141"></a> |
| <span class="sourceLineNo">142</span> /**<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> * Read off the wire. If there is not enough data to read, update the connection state with what<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> * we have and returns.<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> * @return Returns -1 if failure (and caller will close connection), else zero or more.<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> * @throws IOException<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> * @throws InterruptedException<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> */<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> public int readAndProcess() throws IOException, InterruptedException {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> // If we have not read the connection setup preamble, look to see if that is on the wire.<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> if (!connectionPreambleRead) {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> int count = readPreamble();<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> if (!connectionPreambleRead) {<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> return count;<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> }<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> |
| <span class="sourceLineNo">157</span><a name="line.157"></a> |
| <span class="sourceLineNo">158</span> // Try and read in an int. it will be length of the data to read (or -1 if a ping). We catch the<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> // integer length into the 4-byte this.dataLengthBuffer.<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> int count = read4Bytes();<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> if (count < 0 || dataLengthBuffer.remaining() > 0) {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> return count;<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> }<a name="line.163"></a> |
| <span class="sourceLineNo">164</span><a name="line.164"></a> |
| <span class="sourceLineNo">165</span> // We have read a length and we have read the preamble. It is either the connection header<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> // or it is a request.<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> if (data == null) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> dataLengthBuffer.flip();<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> int dataLength = dataLengthBuffer.getInt();<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> if (dataLength == RpcClient.PING_CALL_ID) {<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> if (!useWrap) { // covers the !useSasl too<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> dataLengthBuffer.clear();<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> return 0; // ping message<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> }<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> }<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> if (dataLength < 0) { // A data length of zero is legal.<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> throw new DoNotRetryIOException(<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> "Unexpected data length " + dataLength + "!! from " + getHostAddress());<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> }<a name="line.179"></a> |
| <span class="sourceLineNo">180</span><a name="line.180"></a> |
| <span class="sourceLineNo">181</span> if (dataLength > this.rpcServer.maxRequestSize) {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> String msg = "RPC data length of " + dataLength + " received from " + getHostAddress() +<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> " is greater than max allowed " + this.rpcServer.maxRequestSize + ". Set \"" +<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> SimpleRpcServer.MAX_REQUEST_SIZE +<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> "\" on server to override this limit (not recommended)";<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> SimpleRpcServer.LOG.warn(msg);<a name="line.186"></a> |
| <span class="sourceLineNo">187</span><a name="line.187"></a> |
| <span class="sourceLineNo">188</span> if (connectionHeaderRead && connectionPreambleRead) {<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> incRpcCount();<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> // Construct InputStream for the non-blocking SocketChannel<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> // We need the InputStream because we want to read only the request header<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> // instead of the whole rpc.<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> ByteBuffer buf = ByteBuffer.allocate(1);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> InputStream is = new InputStream() {<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> @Override<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> public int read() throws IOException {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> SimpleServerRpcConnection.this.rpcServer.channelRead(channel, buf);<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> buf.flip();<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> int x = buf.get();<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> buf.flip();<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> return x;<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> }<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> };<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> CodedInputStream cis = CodedInputStream.newInstance(is);<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> int headerSize = cis.readRawVarint32();<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> Message.Builder builder = RequestHeader.newBuilder();<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> ProtobufUtil.mergeFrom(builder, cis, headerSize);<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> RequestHeader header = (RequestHeader) builder.build();<a name="line.208"></a> |
| <span class="sourceLineNo">209</span><a name="line.209"></a> |
| <span class="sourceLineNo">210</span> // Notify the client about the offending request<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> SimpleServerCall reqTooBig = new SimpleServerCall(header.getCallId(), this.service, null,<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> null, null, null, this, 0, this.addr, System.currentTimeMillis(), 0,<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> this.rpcServer.bbAllocator, this.rpcServer.cellBlockBuilder, null, responder);<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> this.rpcServer.metrics.exception(SimpleRpcServer.REQUEST_TOO_BIG_EXCEPTION);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> // Make sure the client recognizes the underlying exception<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> // Otherwise, throw a DoNotRetryIOException.<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> if (VersionInfoUtil.hasMinimumVersion(connectionHeader.getVersionInfo(),<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> RequestTooBigException.MAJOR_VERSION, RequestTooBigException.MINOR_VERSION)) {<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> reqTooBig.setResponse(null, null, SimpleRpcServer.REQUEST_TOO_BIG_EXCEPTION, msg);<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> } else {<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> reqTooBig.setResponse(null, null, new DoNotRetryIOException(), msg);<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> }<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> // In most cases we will write out the response directly. If not, it is still OK to just<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> // close the connection without writing out the reqTooBig response. Do not try to write<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> // out directly here, and it will cause deserialization error if the connection is slow<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> // and we have a half writing response in the queue.<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> reqTooBig.sendResponseIfReady();<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> }<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> // Close the connection<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> return -1;<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> }<a name="line.231"></a> |
| <span class="sourceLineNo">232</span><a name="line.232"></a> |
| <span class="sourceLineNo">233</span> // Initialize this.data with a ByteBuff.<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> // This call will allocate a ByteBuff to read request into and assign to this.data<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> // Also when we use some buffer(s) from pool, it will create a CallCleanup instance also and<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> // assign to this.callCleanup<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> initByteBuffToReadInto(dataLength);<a name="line.237"></a> |
| <span class="sourceLineNo">238</span><a name="line.238"></a> |
| <span class="sourceLineNo">239</span> // Increment the rpc count. This counter will be decreased when we write<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> // the response. If we want the connection to be detected as idle properly, we<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> // need to keep the inc / dec correct.<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> incRpcCount();<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> }<a name="line.243"></a> |
| <span class="sourceLineNo">244</span><a name="line.244"></a> |
| <span class="sourceLineNo">245</span> count = channelDataRead(channel, data);<a name="line.245"></a> |
| <span class="sourceLineNo">246</span><a name="line.246"></a> |
| <span class="sourceLineNo">247</span> if (count >= 0 && data.remaining() == 0) { // count==0 if dataLength == 0<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> process();<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> }<a name="line.249"></a> |
| <span class="sourceLineNo">250</span><a name="line.250"></a> |
| <span class="sourceLineNo">251</span> return count;<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> }<a name="line.252"></a> |
| <span class="sourceLineNo">253</span><a name="line.253"></a> |
| <span class="sourceLineNo">254</span> // It creates the ByteBuff and CallCleanup and assign to Connection instance.<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> private void initByteBuffToReadInto(int length) {<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> this.data = rpcServer.bbAllocator.allocate(length);<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> this.callCleanup = data::release;<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> }<a name="line.258"></a> |
| <span class="sourceLineNo">259</span><a name="line.259"></a> |
| <span class="sourceLineNo">260</span> protected int channelDataRead(ReadableByteChannel channel, ByteBuff buf) throws IOException {<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> int count = buf.read(channel);<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> if (count > 0) {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> this.rpcServer.metrics.receivedBytes(count);<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> }<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> return count;<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> }<a name="line.266"></a> |
| <span class="sourceLineNo">267</span><a name="line.267"></a> |
| <span class="sourceLineNo">268</span> /**<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> * Process the data buffer and clean the connection state for the next call.<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> */<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> private void process() throws IOException, InterruptedException {<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> data.rewind();<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> try {<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> if (skipInitialSaslHandshake) {<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> skipInitialSaslHandshake = false;<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> return;<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> }<a name="line.277"></a> |
| <span class="sourceLineNo">278</span><a name="line.278"></a> |
| <span class="sourceLineNo">279</span> if (useSasl) {<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> saslReadAndProcess(data);<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> } else {<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> processOneRpc(data);<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> }<a name="line.283"></a> |
| <span class="sourceLineNo">284</span><a name="line.284"></a> |
| <span class="sourceLineNo">285</span> } finally {<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> dataLengthBuffer.clear(); // Clean for the next call<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> data = null; // For the GC<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> this.callCleanup = null;<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> }<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> }<a name="line.290"></a> |
| <span class="sourceLineNo">291</span><a name="line.291"></a> |
| <span class="sourceLineNo">292</span> @Override<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> public synchronized void close() {<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> disposeSasl();<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> data = null;<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> callCleanup = null;<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> if (!channel.isOpen()) return;<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> try {<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> socket.shutdownOutput();<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> } catch (Exception ignored) {<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> if (SimpleRpcServer.LOG.isTraceEnabled()) {<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> SimpleRpcServer.LOG.trace("Ignored exception", ignored);<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> }<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> }<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> if (channel.isOpen()) {<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> try {<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> channel.close();<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> } catch (Exception ignored) {<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> }<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> }<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> try {<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> socket.close();<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> } catch (Exception ignored) {<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> if (SimpleRpcServer.LOG.isTraceEnabled()) {<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> SimpleRpcServer.LOG.trace("Ignored exception", ignored);<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> }<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> }<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> }<a name="line.318"></a> |
| <span class="sourceLineNo">319</span><a name="line.319"></a> |
| <span class="sourceLineNo">320</span> @Override<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> public boolean isConnectionOpen() {<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> return channel.isOpen();<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> }<a name="line.323"></a> |
| <span class="sourceLineNo">324</span><a name="line.324"></a> |
| <span class="sourceLineNo">325</span> @Override<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> public SimpleServerCall createCall(int id, BlockingService service, MethodDescriptor md,<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> RequestHeader header, Message param, CellScanner cellScanner, long size,<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> InetAddress remoteAddress, int timeout, CallCleanup reqCleanup) {<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> return new SimpleServerCall(id, service, md, header, param, cellScanner, this, size,<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> remoteAddress, System.currentTimeMillis(), timeout, this.rpcServer.bbAllocator,<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> this.rpcServer.cellBlockBuilder, reqCleanup, this.responder);<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> }<a name="line.332"></a> |
| <span class="sourceLineNo">333</span><a name="line.333"></a> |
| <span class="sourceLineNo">334</span> @Override<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> protected void doRespond(RpcResponse resp) throws IOException {<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> responder.doRespond(this, resp);<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> }<a name="line.337"></a> |
| <span class="sourceLineNo">338</span>}<a name="line.338"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |
