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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 java.io.IOException;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.util.ArrayList;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.Collections;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.util.Map;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.CellScannable;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.CellScanner;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HConstants;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.TableName;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.31"></a>
<span class="sourceLineNo">032</span><a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.apache.hbase.thirdparty.com.google.protobuf.RpcCallback;<a name="line.33"></a>
<span class="sourceLineNo">034</span><a name="line.34"></a>
<span class="sourceLineNo">035</span>/**<a name="line.35"></a>
<span class="sourceLineNo">036</span> * Get instances via {@link RpcControllerFactory} on client-side.<a name="line.36"></a>
<span class="sourceLineNo">037</span> * @see RpcControllerFactory<a name="line.37"></a>
<span class="sourceLineNo">038</span> */<a name="line.38"></a>
<span class="sourceLineNo">039</span>@InterfaceAudience.Private<a name="line.39"></a>
<span class="sourceLineNo">040</span>public class HBaseRpcControllerImpl implements HBaseRpcController {<a name="line.40"></a>
<span class="sourceLineNo">041</span> /**<a name="line.41"></a>
<span class="sourceLineNo">042</span> * The time, in ms before the call should expire.<a name="line.42"></a>
<span class="sourceLineNo">043</span> */<a name="line.43"></a>
<span class="sourceLineNo">044</span> private Integer callTimeout;<a name="line.44"></a>
<span class="sourceLineNo">045</span><a name="line.45"></a>
<span class="sourceLineNo">046</span> private boolean done = false;<a name="line.46"></a>
<span class="sourceLineNo">047</span><a name="line.47"></a>
<span class="sourceLineNo">048</span> private boolean cancelled = false;<a name="line.48"></a>
<span class="sourceLineNo">049</span><a name="line.49"></a>
<span class="sourceLineNo">050</span> private final List&lt;RpcCallback&lt;Object&gt;&gt; cancellationCbs = new ArrayList&lt;&gt;();<a name="line.50"></a>
<span class="sourceLineNo">051</span><a name="line.51"></a>
<span class="sourceLineNo">052</span> private IOException exception;<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
<span class="sourceLineNo">054</span> private TableName tableName;<a name="line.54"></a>
<span class="sourceLineNo">055</span><a name="line.55"></a>
<span class="sourceLineNo">056</span> /**<a name="line.56"></a>
<span class="sourceLineNo">057</span> * Rpc target Region's RegionInfo we are going against. May be null.<a name="line.57"></a>
<span class="sourceLineNo">058</span> * @see #hasRegionInfo()<a name="line.58"></a>
<span class="sourceLineNo">059</span> */<a name="line.59"></a>
<span class="sourceLineNo">060</span> private RegionInfo regionInfo;<a name="line.60"></a>
<span class="sourceLineNo">061</span><a name="line.61"></a>
<span class="sourceLineNo">062</span> /**<a name="line.62"></a>
<span class="sourceLineNo">063</span> * Priority to set on this request. Set it here in controller so available composing the request.<a name="line.63"></a>
<span class="sourceLineNo">064</span> * This is the ordained way of setting priorities going forward. We will be undoing the old<a name="line.64"></a>
<span class="sourceLineNo">065</span> * annotation-based mechanism.<a name="line.65"></a>
<span class="sourceLineNo">066</span> */<a name="line.66"></a>
<span class="sourceLineNo">067</span> private int priority = HConstants.PRIORITY_UNSET;<a name="line.67"></a>
<span class="sourceLineNo">068</span><a name="line.68"></a>
<span class="sourceLineNo">069</span> /**<a name="line.69"></a>
<span class="sourceLineNo">070</span> * They are optionally set on construction, cleared after we make the call, and then optionally<a name="line.70"></a>
<span class="sourceLineNo">071</span> * set on response with the result. We use this lowest common denominator access to Cells because<a name="line.71"></a>
<span class="sourceLineNo">072</span> * sometimes the scanner is backed by a List of Cells and other times, it is backed by an encoded<a name="line.72"></a>
<span class="sourceLineNo">073</span> * block that implements CellScanner.<a name="line.73"></a>
<span class="sourceLineNo">074</span> */<a name="line.74"></a>
<span class="sourceLineNo">075</span> private CellScanner cellScanner;<a name="line.75"></a>
<span class="sourceLineNo">076</span><a name="line.76"></a>
<span class="sourceLineNo">077</span> private Map&lt;String, byte[]&gt; requestAttributes = Collections.emptyMap();<a name="line.77"></a>
<span class="sourceLineNo">078</span><a name="line.78"></a>
<span class="sourceLineNo">079</span> public HBaseRpcControllerImpl() {<a name="line.79"></a>
<span class="sourceLineNo">080</span> this(null, (CellScanner) null);<a name="line.80"></a>
<span class="sourceLineNo">081</span> }<a name="line.81"></a>
<span class="sourceLineNo">082</span><a name="line.82"></a>
<span class="sourceLineNo">083</span> /**<a name="line.83"></a>
<span class="sourceLineNo">084</span> * Used server-side. Clients should go via {@link RpcControllerFactory}<a name="line.84"></a>
<span class="sourceLineNo">085</span> */<a name="line.85"></a>
<span class="sourceLineNo">086</span> public HBaseRpcControllerImpl(final CellScanner cellScanner) {<a name="line.86"></a>
<span class="sourceLineNo">087</span> this(null, cellScanner);<a name="line.87"></a>
<span class="sourceLineNo">088</span> }<a name="line.88"></a>
<span class="sourceLineNo">089</span><a name="line.89"></a>
<span class="sourceLineNo">090</span> HBaseRpcControllerImpl(RegionInfo regionInfo, final CellScanner cellScanner) {<a name="line.90"></a>
<span class="sourceLineNo">091</span> this.cellScanner = cellScanner;<a name="line.91"></a>
<span class="sourceLineNo">092</span> this.regionInfo = regionInfo;<a name="line.92"></a>
<span class="sourceLineNo">093</span> }<a name="line.93"></a>
<span class="sourceLineNo">094</span><a name="line.94"></a>
<span class="sourceLineNo">095</span> HBaseRpcControllerImpl(RegionInfo regionInfo, final List&lt;CellScannable&gt; cellIterables) {<a name="line.95"></a>
<span class="sourceLineNo">096</span> this.cellScanner = cellIterables == null ? null : CellUtil.createCellScanner(cellIterables);<a name="line.96"></a>
<span class="sourceLineNo">097</span> this.regionInfo = null;<a name="line.97"></a>
<span class="sourceLineNo">098</span> }<a name="line.98"></a>
<span class="sourceLineNo">099</span><a name="line.99"></a>
<span class="sourceLineNo">100</span> @Override<a name="line.100"></a>
<span class="sourceLineNo">101</span> public boolean hasRegionInfo() {<a name="line.101"></a>
<span class="sourceLineNo">102</span> return this.regionInfo != null;<a name="line.102"></a>
<span class="sourceLineNo">103</span> }<a name="line.103"></a>
<span class="sourceLineNo">104</span><a name="line.104"></a>
<span class="sourceLineNo">105</span> @Override<a name="line.105"></a>
<span class="sourceLineNo">106</span> public RegionInfo getRegionInfo() {<a name="line.106"></a>
<span class="sourceLineNo">107</span> return this.regionInfo;<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> /** Returns One-shot cell scanner (you cannot back it up and restart) */<a name="line.110"></a>
<span class="sourceLineNo">111</span> @Override<a name="line.111"></a>
<span class="sourceLineNo">112</span> public CellScanner cellScanner() {<a name="line.112"></a>
<span class="sourceLineNo">113</span> return cellScanner;<a name="line.113"></a>
<span class="sourceLineNo">114</span> }<a name="line.114"></a>
<span class="sourceLineNo">115</span><a name="line.115"></a>
<span class="sourceLineNo">116</span> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "IS2_INCONSISTENT_SYNC",<a name="line.116"></a>
<span class="sourceLineNo">117</span> justification = "The only possible race method is startCancel")<a name="line.117"></a>
<span class="sourceLineNo">118</span> @Override<a name="line.118"></a>
<span class="sourceLineNo">119</span> public void setCellScanner(final CellScanner cellScanner) {<a name="line.119"></a>
<span class="sourceLineNo">120</span> this.cellScanner = cellScanner;<a name="line.120"></a>
<span class="sourceLineNo">121</span> }<a name="line.121"></a>
<span class="sourceLineNo">122</span><a name="line.122"></a>
<span class="sourceLineNo">123</span> @Override<a name="line.123"></a>
<span class="sourceLineNo">124</span> public void setPriority(int priority) {<a name="line.124"></a>
<span class="sourceLineNo">125</span> this.priority = Math.max(this.priority, priority);<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><a name="line.128"></a>
<span class="sourceLineNo">129</span> @Override<a name="line.129"></a>
<span class="sourceLineNo">130</span> public void setPriority(final TableName tn) {<a name="line.130"></a>
<span class="sourceLineNo">131</span> setPriority(<a name="line.131"></a>
<span class="sourceLineNo">132</span> tn != null &amp;&amp; tn.isSystemTable() ? HConstants.SYSTEMTABLE_QOS : HConstants.NORMAL_QOS);<a name="line.132"></a>
<span class="sourceLineNo">133</span> }<a name="line.133"></a>
<span class="sourceLineNo">134</span><a name="line.134"></a>
<span class="sourceLineNo">135</span> @Override<a name="line.135"></a>
<span class="sourceLineNo">136</span> public int getPriority() {<a name="line.136"></a>
<span class="sourceLineNo">137</span> return priority &lt; 0 ? HConstants.NORMAL_QOS : priority;<a name="line.137"></a>
<span class="sourceLineNo">138</span> }<a name="line.138"></a>
<span class="sourceLineNo">139</span><a name="line.139"></a>
<span class="sourceLineNo">140</span> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "IS2_INCONSISTENT_SYNC",<a name="line.140"></a>
<span class="sourceLineNo">141</span> justification = "The only possible race method is startCancel")<a name="line.141"></a>
<span class="sourceLineNo">142</span> @Override<a name="line.142"></a>
<span class="sourceLineNo">143</span> public void reset() {<a name="line.143"></a>
<span class="sourceLineNo">144</span> priority = 0;<a name="line.144"></a>
<span class="sourceLineNo">145</span> cellScanner = null;<a name="line.145"></a>
<span class="sourceLineNo">146</span> exception = null;<a name="line.146"></a>
<span class="sourceLineNo">147</span> callTimeout = null;<a name="line.147"></a>
<span class="sourceLineNo">148</span> regionInfo = null;<a name="line.148"></a>
<span class="sourceLineNo">149</span> tableName = null;<a name="line.149"></a>
<span class="sourceLineNo">150</span> // In the implementations of some callable with replicas, rpc calls are executed in a executor<a name="line.150"></a>
<span class="sourceLineNo">151</span> // and we could cancel the operation from outside which means there could be a race between<a name="line.151"></a>
<span class="sourceLineNo">152</span> // reset and startCancel. Although I think the race should be handled by the callable since the<a name="line.152"></a>
<span class="sourceLineNo">153</span> // reset may clear the cancel state...<a name="line.153"></a>
<span class="sourceLineNo">154</span> synchronized (this) {<a name="line.154"></a>
<span class="sourceLineNo">155</span> done = false;<a name="line.155"></a>
<span class="sourceLineNo">156</span> cancelled = false;<a name="line.156"></a>
<span class="sourceLineNo">157</span> cancellationCbs.clear();<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><a name="line.160"></a>
<span class="sourceLineNo">161</span> @Override<a name="line.161"></a>
<span class="sourceLineNo">162</span> public int getCallTimeout() {<a name="line.162"></a>
<span class="sourceLineNo">163</span> return callTimeout != null ? callTimeout : 0;<a name="line.163"></a>
<span class="sourceLineNo">164</span> }<a name="line.164"></a>
<span class="sourceLineNo">165</span><a name="line.165"></a>
<span class="sourceLineNo">166</span> @Override<a name="line.166"></a>
<span class="sourceLineNo">167</span> public void setCallTimeout(int callTimeout) {<a name="line.167"></a>
<span class="sourceLineNo">168</span> this.callTimeout = callTimeout;<a name="line.168"></a>
<span class="sourceLineNo">169</span> }<a name="line.169"></a>
<span class="sourceLineNo">170</span><a name="line.170"></a>
<span class="sourceLineNo">171</span> @Override<a name="line.171"></a>
<span class="sourceLineNo">172</span> public boolean hasCallTimeout() {<a name="line.172"></a>
<span class="sourceLineNo">173</span> return callTimeout != null;<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> @Override<a name="line.176"></a>
<span class="sourceLineNo">177</span> public Map&lt;String, byte[]&gt; getRequestAttributes() {<a name="line.177"></a>
<span class="sourceLineNo">178</span> return requestAttributes;<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> @Override<a name="line.181"></a>
<span class="sourceLineNo">182</span> public void setRequestAttributes(Map&lt;String, byte[]&gt; requestAttributes) {<a name="line.182"></a>
<span class="sourceLineNo">183</span> this.requestAttributes = requestAttributes;<a name="line.183"></a>
<span class="sourceLineNo">184</span> }<a name="line.184"></a>
<span class="sourceLineNo">185</span><a name="line.185"></a>
<span class="sourceLineNo">186</span> @Override<a name="line.186"></a>
<span class="sourceLineNo">187</span> public synchronized String errorText() {<a name="line.187"></a>
<span class="sourceLineNo">188</span> if (!done || exception == null) {<a name="line.188"></a>
<span class="sourceLineNo">189</span> return null;<a name="line.189"></a>
<span class="sourceLineNo">190</span> }<a name="line.190"></a>
<span class="sourceLineNo">191</span> return exception.getMessage();<a name="line.191"></a>
<span class="sourceLineNo">192</span> }<a name="line.192"></a>
<span class="sourceLineNo">193</span><a name="line.193"></a>
<span class="sourceLineNo">194</span> @Override<a name="line.194"></a>
<span class="sourceLineNo">195</span> public synchronized boolean failed() {<a name="line.195"></a>
<span class="sourceLineNo">196</span> return done &amp;&amp; this.exception != null;<a name="line.196"></a>
<span class="sourceLineNo">197</span> }<a name="line.197"></a>
<span class="sourceLineNo">198</span><a name="line.198"></a>
<span class="sourceLineNo">199</span> @Override<a name="line.199"></a>
<span class="sourceLineNo">200</span> public synchronized boolean isCanceled() {<a name="line.200"></a>
<span class="sourceLineNo">201</span> return cancelled;<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> @Override<a name="line.204"></a>
<span class="sourceLineNo">205</span> public void notifyOnCancel(RpcCallback&lt;Object&gt; callback) {<a name="line.205"></a>
<span class="sourceLineNo">206</span> synchronized (this) {<a name="line.206"></a>
<span class="sourceLineNo">207</span> if (done) {<a name="line.207"></a>
<span class="sourceLineNo">208</span> return;<a name="line.208"></a>
<span class="sourceLineNo">209</span> }<a name="line.209"></a>
<span class="sourceLineNo">210</span> if (!cancelled) {<a name="line.210"></a>
<span class="sourceLineNo">211</span> cancellationCbs.add(callback);<a name="line.211"></a>
<span class="sourceLineNo">212</span> return;<a name="line.212"></a>
<span class="sourceLineNo">213</span> }<a name="line.213"></a>
<span class="sourceLineNo">214</span> }<a name="line.214"></a>
<span class="sourceLineNo">215</span> // run it directly as we have already been cancelled.<a name="line.215"></a>
<span class="sourceLineNo">216</span> callback.run(null);<a name="line.216"></a>
<span class="sourceLineNo">217</span> }<a name="line.217"></a>
<span class="sourceLineNo">218</span><a name="line.218"></a>
<span class="sourceLineNo">219</span> @Override<a name="line.219"></a>
<span class="sourceLineNo">220</span> public synchronized void setFailed(String reason) {<a name="line.220"></a>
<span class="sourceLineNo">221</span> if (done) {<a name="line.221"></a>
<span class="sourceLineNo">222</span> return;<a name="line.222"></a>
<span class="sourceLineNo">223</span> }<a name="line.223"></a>
<span class="sourceLineNo">224</span> done = true;<a name="line.224"></a>
<span class="sourceLineNo">225</span> exception = new IOException(reason);<a name="line.225"></a>
<span class="sourceLineNo">226</span> }<a name="line.226"></a>
<span class="sourceLineNo">227</span><a name="line.227"></a>
<span class="sourceLineNo">228</span> @Override<a name="line.228"></a>
<span class="sourceLineNo">229</span> public synchronized void setFailed(IOException e) {<a name="line.229"></a>
<span class="sourceLineNo">230</span> if (done) {<a name="line.230"></a>
<span class="sourceLineNo">231</span> return;<a name="line.231"></a>
<span class="sourceLineNo">232</span> }<a name="line.232"></a>
<span class="sourceLineNo">233</span> done = true;<a name="line.233"></a>
<span class="sourceLineNo">234</span> exception = e;<a name="line.234"></a>
<span class="sourceLineNo">235</span> }<a name="line.235"></a>
<span class="sourceLineNo">236</span><a name="line.236"></a>
<span class="sourceLineNo">237</span> @Override<a name="line.237"></a>
<span class="sourceLineNo">238</span> public synchronized IOException getFailed() {<a name="line.238"></a>
<span class="sourceLineNo">239</span> return done ? exception : null;<a name="line.239"></a>
<span class="sourceLineNo">240</span> }<a name="line.240"></a>
<span class="sourceLineNo">241</span><a name="line.241"></a>
<span class="sourceLineNo">242</span> @Override<a name="line.242"></a>
<span class="sourceLineNo">243</span> public synchronized void setDone(CellScanner cellScanner) {<a name="line.243"></a>
<span class="sourceLineNo">244</span> if (done) {<a name="line.244"></a>
<span class="sourceLineNo">245</span> return;<a name="line.245"></a>
<span class="sourceLineNo">246</span> }<a name="line.246"></a>
<span class="sourceLineNo">247</span> done = true;<a name="line.247"></a>
<span class="sourceLineNo">248</span> this.cellScanner = cellScanner;<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> @Override<a name="line.251"></a>
<span class="sourceLineNo">252</span> public void startCancel() {<a name="line.252"></a>
<span class="sourceLineNo">253</span> // As said above in the comment of reset, the cancellationCbs maybe cleared by reset, so we need<a name="line.253"></a>
<span class="sourceLineNo">254</span> // to copy it.<a name="line.254"></a>
<span class="sourceLineNo">255</span> List&lt;RpcCallback&lt;Object&gt;&gt; cbs;<a name="line.255"></a>
<span class="sourceLineNo">256</span> synchronized (this) {<a name="line.256"></a>
<span class="sourceLineNo">257</span> if (done) {<a name="line.257"></a>
<span class="sourceLineNo">258</span> return;<a name="line.258"></a>
<span class="sourceLineNo">259</span> }<a name="line.259"></a>
<span class="sourceLineNo">260</span> done = true;<a name="line.260"></a>
<span class="sourceLineNo">261</span> cancelled = true;<a name="line.261"></a>
<span class="sourceLineNo">262</span> cbs = new ArrayList&lt;&gt;(cancellationCbs);<a name="line.262"></a>
<span class="sourceLineNo">263</span> }<a name="line.263"></a>
<span class="sourceLineNo">264</span> for (RpcCallback&lt;?&gt; cb : cbs) {<a name="line.264"></a>
<span class="sourceLineNo">265</span> cb.run(null);<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> @Override<a name="line.269"></a>
<span class="sourceLineNo">270</span> public synchronized void notifyOnCancel(RpcCallback&lt;Object&gt; callback, CancellationCallback action)<a name="line.270"></a>
<span class="sourceLineNo">271</span> throws IOException {<a name="line.271"></a>
<span class="sourceLineNo">272</span> if (cancelled) {<a name="line.272"></a>
<span class="sourceLineNo">273</span> action.run(true);<a name="line.273"></a>
<span class="sourceLineNo">274</span> } else {<a name="line.274"></a>
<span class="sourceLineNo">275</span> cancellationCbs.add(callback);<a name="line.275"></a>
<span class="sourceLineNo">276</span> action.run(false);<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><a name="line.279"></a>
<span class="sourceLineNo">280</span> @Override<a name="line.280"></a>
<span class="sourceLineNo">281</span> public void setTableName(TableName tableName) {<a name="line.281"></a>
<span class="sourceLineNo">282</span> this.tableName = tableName;<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> @Override<a name="line.285"></a>
<span class="sourceLineNo">286</span> public TableName getTableName() {<a name="line.286"></a>
<span class="sourceLineNo">287</span> return tableName;<a name="line.287"></a>
<span class="sourceLineNo">288</span> }<a name="line.288"></a>
<span class="sourceLineNo">289</span>}<a name="line.289"></a>
</pre>
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