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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.coprocessor;<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.Collection;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Collections;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.List;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.SortedSet;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.TreeSet;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.Cell;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.CompareOperator;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.CoprocessorEnvironment;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.HConstants;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.PrivateCellUtil;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.Get;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.Mutation;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.filter.ByteArrayComparable;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.filter.Filter;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.io.TimeRange;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.ipc.CoprocessorRpcUtils;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.regionserver.HRegion;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.regionserver.NoSuchColumnFamilyException;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.regionserver.Region;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.regionserver.RegionScanner;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.regionserver.WrongRegionException;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.yetus.audience.InterfaceStability;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.slf4j.Logger;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.slf4j.LoggerFactory;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span><a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hbase.thirdparty.com.google.protobuf.RpcCallback;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.hbase.thirdparty.com.google.protobuf.RpcController;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.apache.hbase.thirdparty.com.google.protobuf.Service;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutationProto;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MultiRowMutationProtos.MultiRowMutationService;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MultiRowMutationProtos.MutateRowsRequest;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MultiRowMutationProtos.MutateRowsResponse;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span>/**<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * This class implements atomic multi row transactions using<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * {@link HRegion#mutateRowsWithLocks(Collection, Collection, long, long)} and Coprocessor<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> * endpoints. We can also specify some conditions to perform conditional update. Defines a protocol<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> * to perform multi row transactions. See {@link MultiRowMutationEndpoint} for the implementation.<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * <br><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * See {@link HRegion#mutateRowsWithLocks(Collection, Collection, long, long)} for details and<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * limitations. <br><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * Example: <code><a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * Put p = new Put(row1);<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> * Delete d = new Delete(row2);<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> * Increment i = new Increment(row3);<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> * Append a = new Append(row4);<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> * ...<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> * Mutate m1 = ProtobufUtil.toMutate(MutateType.PUT, p);<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * Mutate m2 = ProtobufUtil.toMutate(MutateType.DELETE, d);<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * Mutate m3 = ProtobufUtil.toMutate(MutateType.INCREMENT, i);<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * Mutate m4 = ProtobufUtil.toMutate(MutateType.Append, a);<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> *<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * MutateRowsRequest.Builder mrmBuilder = MutateRowsRequest.newBuilder();<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * mrmBuilder.addMutationRequest(m1);<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * mrmBuilder.addMutationRequest(m2);<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> * mrmBuilder.addMutationRequest(m3);<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> * mrmBuilder.addMutationRequest(m4);<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> *<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> * // We can also specify conditions to preform conditional update<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> * mrmBuilder.addCondition(ProtobufUtil.toCondition(row, FAMILY, QUALIFIER,<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> * CompareOperator.EQUAL, value, TimeRange.allTime()));<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> *<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> * CoprocessorRpcChannel channel = t.coprocessorService(ROW);<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> * MultiRowMutationService.BlockingInterface service =<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> * MultiRowMutationService.newBlockingStub(channel);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> * MutateRowsRequest mrm = mrmBuilder.build();<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> * MutateRowsResponse response = service.mutateRows(null, mrm);<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> *<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> * // We can get the result of the conditional update<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> * boolean processed = response.getProcessed();<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * </code><a name="line.100"></a> |
| <span class="sourceLineNo">101</span> */<a name="line.101"></a> |
| <span class="sourceLineNo">102</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.COPROC)<a name="line.102"></a> |
| <span class="sourceLineNo">103</span>@InterfaceStability.Evolving<a name="line.103"></a> |
| <span class="sourceLineNo">104</span>public class MultiRowMutationEndpoint extends MultiRowMutationService implements RegionCoprocessor {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> private static final Logger LOGGER = LoggerFactory.getLogger(HRegion.class);<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> private RegionCoprocessorEnvironment env;<a name="line.107"></a> |
| <span class="sourceLineNo">108</span><a name="line.108"></a> |
| <span class="sourceLineNo">109</span> @Override<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> public void mutateRows(RpcController controller, MutateRowsRequest request,<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> RpcCallback<MutateRowsResponse> done) {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> boolean matches = true;<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> List<Region.RowLock> rowLocks = null;<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> try {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> // set of rows to lock, sorted to avoid deadlocks<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> SortedSet<byte[]> rowsToLock = new TreeSet<>(Bytes.BYTES_COMPARATOR);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> List<MutationProto> mutateRequestList = request.getMutationRequestList();<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> List<Mutation> mutations = new ArrayList<>(mutateRequestList.size());<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> for (MutationProto m : mutateRequestList) {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> mutations.add(ProtobufUtil.toMutation(m));<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> Region region = env.getRegion();<a name="line.123"></a> |
| <span class="sourceLineNo">124</span><a name="line.124"></a> |
| <span class="sourceLineNo">125</span> RegionInfo regionInfo = region.getRegionInfo();<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> for (Mutation m : mutations) {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> // check whether rows are in range for this region<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> if (!HRegion.rowIsInRange(regionInfo, m.getRow())) {<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> String msg = "Requested row out of range '" + Bytes.toStringBinary(m.getRow()) + "'";<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> if (rowsToLock.isEmpty()) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> // if this is the first row, region might have moved,<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> // allow client to retry<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> throw new WrongRegionException(msg);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> } else {<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> // rows are split between regions, do not retry<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> throw new org.apache.hadoop.hbase.DoNotRetryIOException(msg);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> }<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> }<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> rowsToLock.add(m.getRow());<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> if (request.getConditionCount() > 0) {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // Get row locks for the mutations and the conditions<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> rowLocks = new ArrayList<>();<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> for (ClientProtos.Condition condition : request.getConditionList()) {<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> rowsToLock.add(condition.getRow().toByteArray());<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> for (byte[] row : rowsToLock) {<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> try {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> Region.RowLock rowLock = region.getRowLock(row, false); // write lock<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> rowLocks.add(rowLock);<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> } catch (IOException ioe) {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> LOGGER.warn("Failed getting lock, row={}, in region {}", Bytes.toStringBinary(row),<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> this, ioe);<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> throw ioe;<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><a name="line.158"></a> |
| <span class="sourceLineNo">159</span> // Check if all the conditions match<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> for (ClientProtos.Condition condition : request.getConditionList()) {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> if (!matches(region, condition)) {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> matches = false;<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> break;<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> }<a name="line.166"></a> |
| <span class="sourceLineNo">167</span><a name="line.167"></a> |
| <span class="sourceLineNo">168</span> if (matches) {<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> // call utility method on region<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> long nonceGroup = request.hasNonceGroup() ? request.getNonceGroup() : HConstants.NO_NONCE;<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> long nonce = request.hasNonce() ? request.getNonce() : HConstants.NO_NONCE;<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> region.mutateRowsWithLocks(mutations, rowsToLock, nonceGroup, nonce);<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> }<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> } catch (IOException e) {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> CoprocessorRpcUtils.setControllerException(controller, e);<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> } finally {<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> if (rowLocks != null) {<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> // Release the acquired row locks<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> for (Region.RowLock rowLock : rowLocks) {<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> rowLock.release();<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> }<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> }<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> done.run(MutateRowsResponse.newBuilder().setProcessed(matches).build());<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> }<a name="line.185"></a> |
| <span class="sourceLineNo">186</span><a name="line.186"></a> |
| <span class="sourceLineNo">187</span> private boolean matches(Region region, ClientProtos.Condition condition) throws IOException {<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> byte[] row = condition.getRow().toByteArray();<a name="line.188"></a> |
| <span class="sourceLineNo">189</span><a name="line.189"></a> |
| <span class="sourceLineNo">190</span> Filter filter = null;<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> byte[] family = null;<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> byte[] qualifier = null;<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> CompareOperator op = null;<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> ByteArrayComparable comparator = null;<a name="line.194"></a> |
| <span class="sourceLineNo">195</span><a name="line.195"></a> |
| <span class="sourceLineNo">196</span> if (condition.hasFilter()) {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> filter = ProtobufUtil.toFilter(condition.getFilter());<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> } else {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> family = condition.getFamily().toByteArray();<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> qualifier = condition.getQualifier().toByteArray();<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> op = CompareOperator.valueOf(condition.getCompareType().name());<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> comparator = ProtobufUtil.toComparator(condition.getComparator());<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> }<a name="line.203"></a> |
| <span class="sourceLineNo">204</span><a name="line.204"></a> |
| <span class="sourceLineNo">205</span> TimeRange timeRange = condition.hasTimeRange()<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> ? ProtobufUtil.toTimeRange(condition.getTimeRange())<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> : TimeRange.allTime();<a name="line.207"></a> |
| <span class="sourceLineNo">208</span><a name="line.208"></a> |
| <span class="sourceLineNo">209</span> Get get = new Get(row);<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> if (family != null) {<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> checkFamily(region, family);<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> get.addColumn(family, qualifier);<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> }<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> if (filter != null) {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> get.setFilter(filter);<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> }<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> if (timeRange != null) {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> get.setTimeRange(timeRange.getMin(), timeRange.getMax());<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> }<a name="line.219"></a> |
| <span class="sourceLineNo">220</span><a name="line.220"></a> |
| <span class="sourceLineNo">221</span> boolean matches = false;<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> try (RegionScanner scanner = region.getScanner(new Scan(get))) {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> // NOTE: Please don't use HRegion.get() instead,<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> // because it will copy cells to heap. See HBASE-26036<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> List<Cell> result = new ArrayList<>();<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> scanner.next(result);<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> if (filter != null) {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> if (!result.isEmpty()) {<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> matches = true;<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> }<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> } else {<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> boolean valueIsNull = comparator.getValue() == null || comparator.getValue().length == 0;<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> if (result.isEmpty() && valueIsNull) {<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> matches = true;<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> } else if (result.size() > 0 && result.get(0).getValueLength() == 0 && valueIsNull) {<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> matches = true;<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> } else if (result.size() == 1 && !valueIsNull) {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> Cell kv = result.get(0);<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> int compareResult = PrivateCellUtil.compareValue(kv, comparator);<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> matches = matches(op, compareResult);<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> }<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> }<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> }<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> return matches;<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> }<a name="line.245"></a> |
| <span class="sourceLineNo">246</span><a name="line.246"></a> |
| <span class="sourceLineNo">247</span> private void checkFamily(Region region, byte[] family) throws NoSuchColumnFamilyException {<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> if (!region.getTableDescriptor().hasColumnFamily(family)) {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> throw new NoSuchColumnFamilyException("Column family " + Bytes.toString(family)<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> + " does not exist in region " + this + " in table " + region.getTableDescriptor());<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<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> private boolean matches(CompareOperator op, int compareResult) {<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> switch (op) {<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> case LESS:<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> return compareResult < 0;<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> case LESS_OR_EQUAL:<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> return compareResult <= 0;<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> case EQUAL:<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> return compareResult == 0;<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> case NOT_EQUAL:<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> return compareResult != 0;<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> case GREATER_OR_EQUAL:<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> return compareResult >= 0;<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> case GREATER:<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> return compareResult > 0;<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> default:<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> throw new RuntimeException("Unknown Compare op " + op.name());<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> }<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> }<a name="line.271"></a> |
| <span class="sourceLineNo">272</span><a name="line.272"></a> |
| <span class="sourceLineNo">273</span> @Override<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> public Iterable<Service> getServices() {<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> return Collections.singleton(this);<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> }<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> * Stores a reference to the coprocessor environment provided by the<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> * {@link org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost} from the region where this<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> * coprocessor is loaded. Since this is a coprocessor endpoint, it always expects to be loaded on<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> * a table region, so always expects this to be an instance of<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> * {@link RegionCoprocessorEnvironment}.<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> * @param env the environment provided by the coprocessor host<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> * @throws IOException if the provided environment is not an instance of<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> * {@code RegionCoprocessorEnvironment}<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> */<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> @Override<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> public void start(CoprocessorEnvironment env) throws IOException {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> if (env instanceof RegionCoprocessorEnvironment) {<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> this.env = (RegionCoprocessorEnvironment) env;<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> } else {<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> throw new CoprocessorException("Must be loaded on a table region!");<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> }<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> }<a name="line.295"></a> |
| <span class="sourceLineNo">296</span><a name="line.296"></a> |
| <span class="sourceLineNo">297</span> @Override<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> public void stop(CoprocessorEnvironment env) throws IOException {<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> // nothing to do<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span>}<a name="line.301"></a> |
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| </div> |
| </body> |
| </html> |
