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| <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.opentelemetry.api.trace.Span;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.Optional;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.commons.lang3.builder.ToStringBuilder;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.commons.lang3.builder.ToStringStyle;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.CellScanner;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.client.MetricsConnection;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span><a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hbase.thirdparty.com.google.protobuf.Descriptors;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hbase.thirdparty.com.google.protobuf.Message;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hbase.thirdparty.com.google.protobuf.RpcCallback;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hbase.thirdparty.io.netty.util.Timeout;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span><a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span><a name="line.36"></a> |
| <span class="sourceLineNo">037</span>/** A call waiting for a value. */<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>@InterfaceAudience.Private<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>class Call {<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> final int id; // call id<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> final Message param; // rpc request method param object<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> /**<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * Optionally has cells when making call. Optionally has cells set on response. Used passing cells<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * to the rpc and receiving the response.<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> */<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> CellScanner cells;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "IS2_INCONSISTENT_SYNC",<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> justification = "Direct access is only allowed after done")<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> Message response; // value, null if error<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> // The return type. Used to create shell into which we deserialize the response if any.<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> Message responseDefaultType;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "IS2_INCONSISTENT_SYNC",<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> justification = "Direct access is only allowed after done")<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> IOException error; // exception, null if value<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> private boolean done; // true when call is done<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> final Descriptors.MethodDescriptor md;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> final int timeout; // timeout in millisecond for this call; 0 means infinite.<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> final int priority;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> final MetricsConnection.CallStats callStats;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private final RpcCallback<Call> callback;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> final Span span;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> Timeout timeoutTask;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> Call(int id, final Descriptors.MethodDescriptor md, Message param, final CellScanner cells,<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> final Message responseDefaultType, int timeout, int priority, RpcCallback<Call> callback,<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> MetricsConnection.CallStats callStats) {<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> this.param = param;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> this.md = md;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> this.cells = cells;<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> this.callStats = callStats;<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> this.callStats.setStartTime(EnvironmentEdgeManager.currentTime());<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> this.responseDefaultType = responseDefaultType;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> this.id = id;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> this.timeout = timeout;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> this.priority = priority;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> this.callback = callback;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> this.span = Span.current();<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> }<a name="line.78"></a> |
| <span class="sourceLineNo">079</span><a name="line.79"></a> |
| <span class="sourceLineNo">080</span> /**<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * Builds a simplified {@link #toString()} that includes just the id and method name.<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> */<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> public String toShortString() {<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE).append("id", id)<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> .append("methodName", md.getName()).toString();<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> }<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> @Override<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> public String toString() {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> // Call[id=32153218,methodName=Get]<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE).appendSuper(toShortString())<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> .append("param", Optional.ofNullable(param).map(ProtobufUtil::getShortTextFormat).orElse(""))<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> .toString();<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<a name="line.94"></a> |
| <span class="sourceLineNo">095</span><a name="line.95"></a> |
| <span class="sourceLineNo">096</span> /**<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> * called from timeoutTask, prevent self cancel<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> */<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> public void setTimeout(IOException error) {<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> synchronized (this) {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> if (done) {<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> return;<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> }<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> this.done = true;<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> this.error = error;<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> }<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> callback.run(this);<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> }<a name="line.108"></a> |
| <span class="sourceLineNo">109</span><a name="line.109"></a> |
| <span class="sourceLineNo">110</span> private void callComplete() {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> if (timeoutTask != null) {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> timeoutTask.cancel();<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> }<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> callback.run(this);<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> /**<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> * Set the exception when there is an error. Notify the caller the call is done.<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> * @param error exception thrown by the call; either local or remote<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> */<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> public void setException(IOException error) {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> synchronized (this) {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> if (done) {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> return;<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> }<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> this.done = true;<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> this.error = error;<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> }<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> callComplete();<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> }<a name="line.130"></a> |
| <span class="sourceLineNo">131</span><a name="line.131"></a> |
| <span class="sourceLineNo">132</span> /**<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> * Set the return value when there is no error. Notify the caller the call is done.<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> * @param response return value of the call.<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> * @param cells Can be null<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> */<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> public void setResponse(Message response, final CellScanner cells) {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> synchronized (this) {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> if (done) {<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> return;<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> }<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> this.done = true;<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> this.response = response;<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> this.cells = cells;<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> }<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> callComplete();<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> public synchronized boolean isDone() {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> return done;<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> }<a name="line.151"></a> |
| <span class="sourceLineNo">152</span><a name="line.152"></a> |
| <span class="sourceLineNo">153</span> public long getStartTime() {<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> return this.callStats.getStartTime();<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> |
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| </pre> |
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