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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.mapreduce;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import static org.junit.Assert.assertTrue;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static org.junit.Assert.fail;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span><a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.io.File;<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.util.Iterator;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Map;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.NavigableMap;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.fs.FileUtil;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.fs.Path;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.Cell;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.HBaseTestingUtility;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.HConstants;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.TableName;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.Put;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.client.Result;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.ResultScanner;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.client.Table;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.io.ImmutableBytesWritable;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.testclassification.LargeTests;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.testclassification.MapReduceTests;<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.mapreduce.Job;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.junit.AfterClass;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.junit.BeforeClass;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.junit.ClassRule;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.junit.Test;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.junit.experimental.categories.Category;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.slf4j.Logger;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.slf4j.LoggerFactory;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span>/**<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * Test Map/Reduce job over HBase tables. The map/reduce process we're testing<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * on our tables is simple - take every row in the table, reverse the value of<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * a particular cell, and write it back to the table.<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> */<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>@Category({MapReduceTests.class, LargeTests.class})<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>public class TestMultithreadedTableMapper {<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> @ClassRule<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> HBaseClassTestRule.forClass(TestMultithreadedTableMapper.class);<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private static final Logger LOG = LoggerFactory.getLogger(TestMultithreadedTableMapper.class);<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> private static final HBaseTestingUtility UTIL =<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> new HBaseTestingUtility();<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> static final TableName MULTI_REGION_TABLE_NAME = TableName.valueOf("mrtest");<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> static final byte[] INPUT_FAMILY = Bytes.toBytes("contents");<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> static final byte[] OUTPUT_FAMILY = Bytes.toBytes("text");<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> static final int NUMBER_OF_THREADS = 10;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> @BeforeClass<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> public static void beforeClass() throws Exception {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> // Up the handlers; this test needs more than usual.<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> UTIL.getConfiguration().setInt(HConstants.REGION_SERVER_HIGH_PRIORITY_HANDLER_COUNT, 10);<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> UTIL.startMiniCluster();<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> Table table =<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> UTIL.createMultiRegionTable(MULTI_REGION_TABLE_NAME, new byte[][] { INPUT_FAMILY,<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> OUTPUT_FAMILY });<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> UTIL.loadTable(table, INPUT_FAMILY, false);<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> UTIL.waitUntilAllRegionsAssigned(MULTI_REGION_TABLE_NAME);<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> }<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> @AfterClass<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> public static void afterClass() throws Exception {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> UTIL.shutdownMiniCluster();<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> }<a name="line.90"></a> |
| <span class="sourceLineNo">091</span><a name="line.91"></a> |
| <span class="sourceLineNo">092</span> /**<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> * Pass the given key and processed record reduce<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> */<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> public static class ProcessContentsMapper<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> extends TableMapper<ImmutableBytesWritable, Put> {<a name="line.96"></a> |
| <span class="sourceLineNo">097</span><a name="line.97"></a> |
| <span class="sourceLineNo">098</span> /**<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> * Pass the key, and reversed value to reduce<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> *<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> * @param key<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> * @param value<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> * @param context<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> * @throws IOException<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> */<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> @Override<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> public void map(ImmutableBytesWritable key, Result value,<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> Context context)<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> throws IOException, InterruptedException {<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> if (value.size() != 1) {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> throw new IOException("There should only be one input column");<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> }<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> Map<byte[], NavigableMap<byte[], NavigableMap<Long, byte[]>>><a name="line.113"></a> |
| <span class="sourceLineNo">114</span> cf = value.getMap();<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> if(!cf.containsKey(INPUT_FAMILY)) {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> throw new IOException("Wrong input columns. Missing: '" +<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> Bytes.toString(INPUT_FAMILY) + "'.");<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> }<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> // Get the original value and reverse it<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> String originalValue = Bytes.toString(value.getValue(INPUT_FAMILY, INPUT_FAMILY));<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> StringBuilder newValue = new StringBuilder(originalValue);<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> newValue.reverse();<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> // Now set the value to be collected<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> Put outval = new Put(key.get());<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> outval.addColumn(OUTPUT_FAMILY, null, Bytes.toBytes(newValue.toString()));<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> context.write(key, outval);<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><a name="line.129"></a> |
| <span class="sourceLineNo">130</span> /**<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> * Test multithreadedTableMappper map/reduce against a multi-region table<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> * @throws IOException<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> * @throws ClassNotFoundException<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> * @throws InterruptedException<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> */<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> @Test<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> public void testMultithreadedTableMapper()<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> throws IOException, InterruptedException, ClassNotFoundException {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> runTestOnTable(UTIL.getConnection().getTable(MULTI_REGION_TABLE_NAME));<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> private void runTestOnTable(Table table)<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> throws IOException, InterruptedException, ClassNotFoundException {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> Job job = null;<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> try {<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> LOG.info("Before map/reduce startup");<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> job = new Job(table.getConfiguration(), "process column contents");<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> job.setNumReduceTasks(1);<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> Scan scan = new Scan();<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> scan.addFamily(INPUT_FAMILY);<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> TableMapReduceUtil.initTableMapperJob(<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> table.getName(), scan,<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> MultithreadedTableMapper.class, ImmutableBytesWritable.class,<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> Put.class, job);<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> MultithreadedTableMapper.setMapperClass(job, ProcessContentsMapper.class);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> MultithreadedTableMapper.setNumberOfThreads(job, NUMBER_OF_THREADS);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> TableMapReduceUtil.initTableReducerJob(<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> table.getName().getNameAsString(),<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> IdentityTableReducer.class, job);<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> FileOutputFormat.setOutputPath(job, new Path("test"));<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> LOG.info("Started " + table.getName());<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> assertTrue(job.waitForCompletion(true));<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> LOG.info("After map/reduce completion");<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> // verify map-reduce results<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> verify(table.getName());<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> } finally {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> table.close();<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> if (job != null) {<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> FileUtil.fullyDelete(<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> new File(job.getConfiguration().get("hadoop.tmp.dir")));<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> }<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> }<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> }<a name="line.173"></a> |
| <span class="sourceLineNo">174</span><a name="line.174"></a> |
| <span class="sourceLineNo">175</span> private void verify(TableName tableName) throws IOException {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> Table table = UTIL.getConnection().getTable(tableName);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> boolean verified = false;<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> long pause = UTIL.getConfiguration().getLong("hbase.client.pause", 5 * 1000);<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> int numRetries = UTIL.getConfiguration().getInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 5);<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> for (int i = 0; i < numRetries; i++) {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> try {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> LOG.info("Verification attempt #" + i);<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> verifyAttempt(table);<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> verified = true;<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> break;<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> } catch (NullPointerException e) {<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> // If here, a cell was empty. Presume its because updates came in<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> // after the scanner had been opened. Wait a while and retry.<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> LOG.debug("Verification attempt failed: " + e.getMessage());<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> }<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> try {<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> Thread.sleep(pause);<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> } catch (InterruptedException e) {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> // continue<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> assertTrue(verified);<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> table.close();<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> }<a name="line.199"></a> |
| <span class="sourceLineNo">200</span><a name="line.200"></a> |
| <span class="sourceLineNo">201</span> /**<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> * Looks at every value of the mapreduce output and verifies that indeed<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> * the values have been reversed.<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> *<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> * @param table Table to scan.<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> * @throws IOException<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> * @throws NullPointerException if we failed to find a cell value<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> */<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> private void verifyAttempt(final Table table)<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> throws IOException, NullPointerException {<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> Scan scan = new Scan();<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> scan.addFamily(INPUT_FAMILY);<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> scan.addFamily(OUTPUT_FAMILY);<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> ResultScanner scanner = table.getScanner(scan);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> try {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> Iterator<Result> itr = scanner.iterator();<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> assertTrue(itr.hasNext());<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> while(itr.hasNext()) {<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> Result r = itr.next();<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> if (LOG.isDebugEnabled()) {<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> if (r.size() > 2 ) {<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> throw new IOException("Too many results, expected 2 got " +<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> r.size());<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> }<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> }<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> byte[] firstValue = null;<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> byte[] secondValue = null;<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> int count = 0;<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> for(Cell kv : r.listCells()) {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> if (count == 0) {<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> firstValue = CellUtil.cloneValue(kv);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> }else if (count == 1) {<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> secondValue = CellUtil.cloneValue(kv);<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }else if (count == 2) {<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> break;<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> }<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> count++;<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> }<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> String first = "";<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> if (firstValue == null) {<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> throw new NullPointerException(Bytes.toString(r.getRow()) +<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> ": first value is null");<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> }<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> first = Bytes.toString(firstValue);<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> String second = "";<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> if (secondValue == null) {<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> throw new NullPointerException(Bytes.toString(r.getRow()) +<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> ": second value is null");<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> }<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> byte[] secondReversed = new byte[secondValue.length];<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> for (int i = 0, j = secondValue.length - 1; j >= 0; j--, i++) {<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> secondReversed[i] = secondValue[j];<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> }<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> second = Bytes.toString(secondReversed);<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> if (first.compareTo(second) != 0) {<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> if (LOG.isDebugEnabled()) {<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> LOG.debug("second key is not the reverse of first. row=" +<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> Bytes.toStringBinary(r.getRow()) + ", first value=" + first +<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> ", second value=" + second);<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> }<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> fail();<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> }<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> }<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> } finally {<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> scanner.close();<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>}<a name="line.269"></a> |
| <span class="sourceLineNo">270</span><a name="line.270"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
