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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.coprocessor;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.ArrayList;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.Collection;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.Collections;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.List;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.SortedSet;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.TreeSet;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.Cell;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.CompareOperator;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.CoprocessorEnvironment;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.HBaseInterfaceAudience;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.PrivateCellUtil;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.client.Get;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.client.Mutation;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.client.RegionInfo;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.client.Scan;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.filter.ByteArrayComparable;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.filter.Filter;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.io.TimeRange;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.ipc.CoprocessorRpcUtils;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.regionserver.HRegion;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.hbase.regionserver.NoSuchColumnFamilyException;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.apache.hadoop.hbase.regionserver.Region;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.apache.hadoop.hbase.regionserver.RegionScanner;</span> |
| <span class="source-line-no">045</span><span id="line-45">import org.apache.hadoop.hbase.regionserver.WrongRegionException;</span> |
| <span class="source-line-no">046</span><span id="line-46">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">047</span><span id="line-47">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">048</span><span id="line-48">import org.apache.yetus.audience.InterfaceStability;</span> |
| <span class="source-line-no">049</span><span id="line-49">import org.slf4j.Logger;</span> |
| <span class="source-line-no">050</span><span id="line-50">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">051</span><span id="line-51"></span> |
| <span class="source-line-no">052</span><span id="line-52">import org.apache.hbase.thirdparty.com.google.protobuf.RpcCallback;</span> |
| <span class="source-line-no">053</span><span id="line-53">import org.apache.hbase.thirdparty.com.google.protobuf.RpcController;</span> |
| <span class="source-line-no">054</span><span id="line-54">import org.apache.hbase.thirdparty.com.google.protobuf.Service;</span> |
| <span class="source-line-no">055</span><span id="line-55"></span> |
| <span class="source-line-no">056</span><span id="line-56">import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;</span> |
| <span class="source-line-no">057</span><span id="line-57">import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos;</span> |
| <span class="source-line-no">058</span><span id="line-58">import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutationProto;</span> |
| <span class="source-line-no">059</span><span id="line-59">import org.apache.hadoop.hbase.shaded.protobuf.generated.MultiRowMutationProtos.MultiRowMutationService;</span> |
| <span class="source-line-no">060</span><span id="line-60">import org.apache.hadoop.hbase.shaded.protobuf.generated.MultiRowMutationProtos.MutateRowsRequest;</span> |
| <span class="source-line-no">061</span><span id="line-61">import org.apache.hadoop.hbase.shaded.protobuf.generated.MultiRowMutationProtos.MutateRowsResponse;</span> |
| <span class="source-line-no">062</span><span id="line-62"></span> |
| <span class="source-line-no">063</span><span id="line-63">/**</span> |
| <span class="source-line-no">064</span><span id="line-64"> * This class implements atomic multi row transactions using</span> |
| <span class="source-line-no">065</span><span id="line-65"> * {@link HRegion#mutateRowsWithLocks(Collection, Collection, long, long)} and Coprocessor</span> |
| <span class="source-line-no">066</span><span id="line-66"> * endpoints. We can also specify some conditions to perform conditional update. Defines a protocol</span> |
| <span class="source-line-no">067</span><span id="line-67"> * to perform multi row transactions. See {@link MultiRowMutationEndpoint} for the implementation.</span> |
| <span class="source-line-no">068</span><span id="line-68"> * <br></span> |
| <span class="source-line-no">069</span><span id="line-69"> * See {@link HRegion#mutateRowsWithLocks(Collection, Collection, long, long)} for details and</span> |
| <span class="source-line-no">070</span><span id="line-70"> * limitations. <br></span> |
| <span class="source-line-no">071</span><span id="line-71"> * Example: <code></span> |
| <span class="source-line-no">072</span><span id="line-72"> * Put p = new Put(row1);</span> |
| <span class="source-line-no">073</span><span id="line-73"> * Delete d = new Delete(row2);</span> |
| <span class="source-line-no">074</span><span id="line-74"> * Increment i = new Increment(row3);</span> |
| <span class="source-line-no">075</span><span id="line-75"> * Append a = new Append(row4);</span> |
| <span class="source-line-no">076</span><span id="line-76"> * ...</span> |
| <span class="source-line-no">077</span><span id="line-77"> * Mutate m1 = ProtobufUtil.toMutate(MutateType.PUT, p);</span> |
| <span class="source-line-no">078</span><span id="line-78"> * Mutate m2 = ProtobufUtil.toMutate(MutateType.DELETE, d);</span> |
| <span class="source-line-no">079</span><span id="line-79"> * Mutate m3 = ProtobufUtil.toMutate(MutateType.INCREMENT, i);</span> |
| <span class="source-line-no">080</span><span id="line-80"> * Mutate m4 = ProtobufUtil.toMutate(MutateType.Append, a);</span> |
| <span class="source-line-no">081</span><span id="line-81"> *</span> |
| <span class="source-line-no">082</span><span id="line-82"> * MutateRowsRequest.Builder mrmBuilder = MutateRowsRequest.newBuilder();</span> |
| <span class="source-line-no">083</span><span id="line-83"> * mrmBuilder.addMutationRequest(m1);</span> |
| <span class="source-line-no">084</span><span id="line-84"> * mrmBuilder.addMutationRequest(m2);</span> |
| <span class="source-line-no">085</span><span id="line-85"> * mrmBuilder.addMutationRequest(m3);</span> |
| <span class="source-line-no">086</span><span id="line-86"> * mrmBuilder.addMutationRequest(m4);</span> |
| <span class="source-line-no">087</span><span id="line-87"> *</span> |
| <span class="source-line-no">088</span><span id="line-88"> * // We can also specify conditions to preform conditional update</span> |
| <span class="source-line-no">089</span><span id="line-89"> * mrmBuilder.addCondition(ProtobufUtil.toCondition(row, FAMILY, QUALIFIER,</span> |
| <span class="source-line-no">090</span><span id="line-90"> * CompareOperator.EQUAL, value, TimeRange.allTime()));</span> |
| <span class="source-line-no">091</span><span id="line-91"> *</span> |
| <span class="source-line-no">092</span><span id="line-92"> * CoprocessorRpcChannel channel = t.coprocessorService(ROW);</span> |
| <span class="source-line-no">093</span><span id="line-93"> * MultiRowMutationService.BlockingInterface service =</span> |
| <span class="source-line-no">094</span><span id="line-94"> * MultiRowMutationService.newBlockingStub(channel);</span> |
| <span class="source-line-no">095</span><span id="line-95"> * MutateRowsRequest mrm = mrmBuilder.build();</span> |
| <span class="source-line-no">096</span><span id="line-96"> * MutateRowsResponse response = service.mutateRows(null, mrm);</span> |
| <span class="source-line-no">097</span><span id="line-97"> *</span> |
| <span class="source-line-no">098</span><span id="line-98"> * // We can get the result of the conditional update</span> |
| <span class="source-line-no">099</span><span id="line-99"> * boolean processed = response.getProcessed();</span> |
| <span class="source-line-no">100</span><span id="line-100"> * </code></span> |
| <span class="source-line-no">101</span><span id="line-101"> */</span> |
| <span class="source-line-no">102</span><span id="line-102">@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.COPROC)</span> |
| <span class="source-line-no">103</span><span id="line-103">@InterfaceStability.Evolving</span> |
| <span class="source-line-no">104</span><span id="line-104">public class MultiRowMutationEndpoint extends MultiRowMutationService implements RegionCoprocessor {</span> |
| <span class="source-line-no">105</span><span id="line-105"> private static final Logger LOGGER = LoggerFactory.getLogger(HRegion.class);</span> |
| <span class="source-line-no">106</span><span id="line-106"></span> |
| <span class="source-line-no">107</span><span id="line-107"> private RegionCoprocessorEnvironment env;</span> |
| <span class="source-line-no">108</span><span id="line-108"></span> |
| <span class="source-line-no">109</span><span id="line-109"> @Override</span> |
| <span class="source-line-no">110</span><span id="line-110"> public void mutateRows(RpcController controller, MutateRowsRequest request,</span> |
| <span class="source-line-no">111</span><span id="line-111"> RpcCallback<MutateRowsResponse> done) {</span> |
| <span class="source-line-no">112</span><span id="line-112"> boolean matches = true;</span> |
| <span class="source-line-no">113</span><span id="line-113"> List<Region.RowLock> rowLocks = null;</span> |
| <span class="source-line-no">114</span><span id="line-114"> try {</span> |
| <span class="source-line-no">115</span><span id="line-115"> // set of rows to lock, sorted to avoid deadlocks</span> |
| <span class="source-line-no">116</span><span id="line-116"> SortedSet<byte[]> rowsToLock = new TreeSet<>(Bytes.BYTES_COMPARATOR);</span> |
| <span class="source-line-no">117</span><span id="line-117"> List<MutationProto> mutateRequestList = request.getMutationRequestList();</span> |
| <span class="source-line-no">118</span><span id="line-118"> List<Mutation> mutations = new ArrayList<>(mutateRequestList.size());</span> |
| <span class="source-line-no">119</span><span id="line-119"> for (MutationProto m : mutateRequestList) {</span> |
| <span class="source-line-no">120</span><span id="line-120"> mutations.add(ProtobufUtil.toMutation(m));</span> |
| <span class="source-line-no">121</span><span id="line-121"> }</span> |
| <span class="source-line-no">122</span><span id="line-122"></span> |
| <span class="source-line-no">123</span><span id="line-123"> Region region = env.getRegion();</span> |
| <span class="source-line-no">124</span><span id="line-124"></span> |
| <span class="source-line-no">125</span><span id="line-125"> RegionInfo regionInfo = region.getRegionInfo();</span> |
| <span class="source-line-no">126</span><span id="line-126"> for (Mutation m : mutations) {</span> |
| <span class="source-line-no">127</span><span id="line-127"> // check whether rows are in range for this region</span> |
| <span class="source-line-no">128</span><span id="line-128"> if (!HRegion.rowIsInRange(regionInfo, m.getRow())) {</span> |
| <span class="source-line-no">129</span><span id="line-129"> String msg = "Requested row out of range '" + Bytes.toStringBinary(m.getRow()) + "'";</span> |
| <span class="source-line-no">130</span><span id="line-130"> if (rowsToLock.isEmpty()) {</span> |
| <span class="source-line-no">131</span><span id="line-131"> // if this is the first row, region might have moved,</span> |
| <span class="source-line-no">132</span><span id="line-132"> // allow client to retry</span> |
| <span class="source-line-no">133</span><span id="line-133"> throw new WrongRegionException(msg);</span> |
| <span class="source-line-no">134</span><span id="line-134"> } else {</span> |
| <span class="source-line-no">135</span><span id="line-135"> // rows are split between regions, do not retry</span> |
| <span class="source-line-no">136</span><span id="line-136"> throw new org.apache.hadoop.hbase.DoNotRetryIOException(msg);</span> |
| <span class="source-line-no">137</span><span id="line-137"> }</span> |
| <span class="source-line-no">138</span><span id="line-138"> }</span> |
| <span class="source-line-no">139</span><span id="line-139"> rowsToLock.add(m.getRow());</span> |
| <span class="source-line-no">140</span><span id="line-140"> }</span> |
| <span class="source-line-no">141</span><span id="line-141"></span> |
| <span class="source-line-no">142</span><span id="line-142"> if (request.getConditionCount() > 0) {</span> |
| <span class="source-line-no">143</span><span id="line-143"> // Get row locks for the mutations and the conditions</span> |
| <span class="source-line-no">144</span><span id="line-144"> rowLocks = new ArrayList<>();</span> |
| <span class="source-line-no">145</span><span id="line-145"> for (ClientProtos.Condition condition : request.getConditionList()) {</span> |
| <span class="source-line-no">146</span><span id="line-146"> rowsToLock.add(condition.getRow().toByteArray());</span> |
| <span class="source-line-no">147</span><span id="line-147"> }</span> |
| <span class="source-line-no">148</span><span id="line-148"> for (byte[] row : rowsToLock) {</span> |
| <span class="source-line-no">149</span><span id="line-149"> try {</span> |
| <span class="source-line-no">150</span><span id="line-150"> Region.RowLock rowLock = region.getRowLock(row, false); // write lock</span> |
| <span class="source-line-no">151</span><span id="line-151"> rowLocks.add(rowLock);</span> |
| <span class="source-line-no">152</span><span id="line-152"> } catch (IOException ioe) {</span> |
| <span class="source-line-no">153</span><span id="line-153"> LOGGER.warn("Failed getting lock, row={}, in region {}", Bytes.toStringBinary(row),</span> |
| <span class="source-line-no">154</span><span id="line-154"> this, ioe);</span> |
| <span class="source-line-no">155</span><span id="line-155"> throw ioe;</span> |
| <span class="source-line-no">156</span><span id="line-156"> }</span> |
| <span class="source-line-no">157</span><span id="line-157"> }</span> |
| <span class="source-line-no">158</span><span id="line-158"></span> |
| <span class="source-line-no">159</span><span id="line-159"> // Check if all the conditions match</span> |
| <span class="source-line-no">160</span><span id="line-160"> for (ClientProtos.Condition condition : request.getConditionList()) {</span> |
| <span class="source-line-no">161</span><span id="line-161"> if (!matches(region, condition)) {</span> |
| <span class="source-line-no">162</span><span id="line-162"> matches = false;</span> |
| <span class="source-line-no">163</span><span id="line-163"> break;</span> |
| <span class="source-line-no">164</span><span id="line-164"> }</span> |
| <span class="source-line-no">165</span><span id="line-165"> }</span> |
| <span class="source-line-no">166</span><span id="line-166"> }</span> |
| <span class="source-line-no">167</span><span id="line-167"></span> |
| <span class="source-line-no">168</span><span id="line-168"> if (matches) {</span> |
| <span class="source-line-no">169</span><span id="line-169"> // call utility method on region</span> |
| <span class="source-line-no">170</span><span id="line-170"> long nonceGroup = request.hasNonceGroup() ? request.getNonceGroup() : HConstants.NO_NONCE;</span> |
| <span class="source-line-no">171</span><span id="line-171"> long nonce = request.hasNonce() ? request.getNonce() : HConstants.NO_NONCE;</span> |
| <span class="source-line-no">172</span><span id="line-172"> region.mutateRowsWithLocks(mutations, rowsToLock, nonceGroup, nonce);</span> |
| <span class="source-line-no">173</span><span id="line-173"> }</span> |
| <span class="source-line-no">174</span><span id="line-174"> } catch (IOException e) {</span> |
| <span class="source-line-no">175</span><span id="line-175"> CoprocessorRpcUtils.setControllerException(controller, e);</span> |
| <span class="source-line-no">176</span><span id="line-176"> } finally {</span> |
| <span class="source-line-no">177</span><span id="line-177"> if (rowLocks != null) {</span> |
| <span class="source-line-no">178</span><span id="line-178"> // Release the acquired row locks</span> |
| <span class="source-line-no">179</span><span id="line-179"> for (Region.RowLock rowLock : rowLocks) {</span> |
| <span class="source-line-no">180</span><span id="line-180"> rowLock.release();</span> |
| <span class="source-line-no">181</span><span id="line-181"> }</span> |
| <span class="source-line-no">182</span><span id="line-182"> }</span> |
| <span class="source-line-no">183</span><span id="line-183"> }</span> |
| <span class="source-line-no">184</span><span id="line-184"> done.run(MutateRowsResponse.newBuilder().setProcessed(matches).build());</span> |
| <span class="source-line-no">185</span><span id="line-185"> }</span> |
| <span class="source-line-no">186</span><span id="line-186"></span> |
| <span class="source-line-no">187</span><span id="line-187"> private boolean matches(Region region, ClientProtos.Condition condition) throws IOException {</span> |
| <span class="source-line-no">188</span><span id="line-188"> byte[] row = condition.getRow().toByteArray();</span> |
| <span class="source-line-no">189</span><span id="line-189"></span> |
| <span class="source-line-no">190</span><span id="line-190"> Filter filter = null;</span> |
| <span class="source-line-no">191</span><span id="line-191"> byte[] family = null;</span> |
| <span class="source-line-no">192</span><span id="line-192"> byte[] qualifier = null;</span> |
| <span class="source-line-no">193</span><span id="line-193"> CompareOperator op = null;</span> |
| <span class="source-line-no">194</span><span id="line-194"> ByteArrayComparable comparator = null;</span> |
| <span class="source-line-no">195</span><span id="line-195"></span> |
| <span class="source-line-no">196</span><span id="line-196"> if (condition.hasFilter()) {</span> |
| <span class="source-line-no">197</span><span id="line-197"> filter = ProtobufUtil.toFilter(condition.getFilter());</span> |
| <span class="source-line-no">198</span><span id="line-198"> } else {</span> |
| <span class="source-line-no">199</span><span id="line-199"> family = condition.getFamily().toByteArray();</span> |
| <span class="source-line-no">200</span><span id="line-200"> qualifier = condition.getQualifier().toByteArray();</span> |
| <span class="source-line-no">201</span><span id="line-201"> op = CompareOperator.valueOf(condition.getCompareType().name());</span> |
| <span class="source-line-no">202</span><span id="line-202"> comparator = ProtobufUtil.toComparator(condition.getComparator());</span> |
| <span class="source-line-no">203</span><span id="line-203"> }</span> |
| <span class="source-line-no">204</span><span id="line-204"></span> |
| <span class="source-line-no">205</span><span id="line-205"> TimeRange timeRange = condition.hasTimeRange()</span> |
| <span class="source-line-no">206</span><span id="line-206"> ? ProtobufUtil.toTimeRange(condition.getTimeRange())</span> |
| <span class="source-line-no">207</span><span id="line-207"> : TimeRange.allTime();</span> |
| <span class="source-line-no">208</span><span id="line-208"></span> |
| <span class="source-line-no">209</span><span id="line-209"> Get get = new Get(row);</span> |
| <span class="source-line-no">210</span><span id="line-210"> if (family != null) {</span> |
| <span class="source-line-no">211</span><span id="line-211"> checkFamily(region, family);</span> |
| <span class="source-line-no">212</span><span id="line-212"> get.addColumn(family, qualifier);</span> |
| <span class="source-line-no">213</span><span id="line-213"> }</span> |
| <span class="source-line-no">214</span><span id="line-214"> if (filter != null) {</span> |
| <span class="source-line-no">215</span><span id="line-215"> get.setFilter(filter);</span> |
| <span class="source-line-no">216</span><span id="line-216"> }</span> |
| <span class="source-line-no">217</span><span id="line-217"> if (timeRange != null) {</span> |
| <span class="source-line-no">218</span><span id="line-218"> get.setTimeRange(timeRange.getMin(), timeRange.getMax());</span> |
| <span class="source-line-no">219</span><span id="line-219"> }</span> |
| <span class="source-line-no">220</span><span id="line-220"></span> |
| <span class="source-line-no">221</span><span id="line-221"> boolean matches = false;</span> |
| <span class="source-line-no">222</span><span id="line-222"> try (RegionScanner scanner = region.getScanner(new Scan(get))) {</span> |
| <span class="source-line-no">223</span><span id="line-223"> // NOTE: Please don't use HRegion.get() instead,</span> |
| <span class="source-line-no">224</span><span id="line-224"> // because it will copy cells to heap. See HBASE-26036</span> |
| <span class="source-line-no">225</span><span id="line-225"> List<Cell> result = new ArrayList<>();</span> |
| <span class="source-line-no">226</span><span id="line-226"> scanner.next(result);</span> |
| <span class="source-line-no">227</span><span id="line-227"> if (filter != null) {</span> |
| <span class="source-line-no">228</span><span id="line-228"> if (!result.isEmpty()) {</span> |
| <span class="source-line-no">229</span><span id="line-229"> matches = true;</span> |
| <span class="source-line-no">230</span><span id="line-230"> }</span> |
| <span class="source-line-no">231</span><span id="line-231"> } else {</span> |
| <span class="source-line-no">232</span><span id="line-232"> boolean valueIsNull = comparator.getValue() == null || comparator.getValue().length == 0;</span> |
| <span class="source-line-no">233</span><span id="line-233"> if (result.isEmpty() && valueIsNull) {</span> |
| <span class="source-line-no">234</span><span id="line-234"> matches = true;</span> |
| <span class="source-line-no">235</span><span id="line-235"> } else if (result.size() > 0 && result.get(0).getValueLength() == 0 && valueIsNull) {</span> |
| <span class="source-line-no">236</span><span id="line-236"> matches = true;</span> |
| <span class="source-line-no">237</span><span id="line-237"> } else if (result.size() == 1 && !valueIsNull) {</span> |
| <span class="source-line-no">238</span><span id="line-238"> Cell kv = result.get(0);</span> |
| <span class="source-line-no">239</span><span id="line-239"> int compareResult = PrivateCellUtil.compareValue(kv, comparator);</span> |
| <span class="source-line-no">240</span><span id="line-240"> matches = matches(op, compareResult);</span> |
| <span class="source-line-no">241</span><span id="line-241"> }</span> |
| <span class="source-line-no">242</span><span id="line-242"> }</span> |
| <span class="source-line-no">243</span><span id="line-243"> }</span> |
| <span class="source-line-no">244</span><span id="line-244"> return matches;</span> |
| <span class="source-line-no">245</span><span id="line-245"> }</span> |
| <span class="source-line-no">246</span><span id="line-246"></span> |
| <span class="source-line-no">247</span><span id="line-247"> private void checkFamily(Region region, byte[] family) throws NoSuchColumnFamilyException {</span> |
| <span class="source-line-no">248</span><span id="line-248"> if (!region.getTableDescriptor().hasColumnFamily(family)) {</span> |
| <span class="source-line-no">249</span><span id="line-249"> throw new NoSuchColumnFamilyException("Column family " + Bytes.toString(family)</span> |
| <span class="source-line-no">250</span><span id="line-250"> + " does not exist in region " + this + " in table " + region.getTableDescriptor());</span> |
| <span class="source-line-no">251</span><span id="line-251"> }</span> |
| <span class="source-line-no">252</span><span id="line-252"> }</span> |
| <span class="source-line-no">253</span><span id="line-253"></span> |
| <span class="source-line-no">254</span><span id="line-254"> private boolean matches(CompareOperator op, int compareResult) {</span> |
| <span class="source-line-no">255</span><span id="line-255"> switch (op) {</span> |
| <span class="source-line-no">256</span><span id="line-256"> case LESS:</span> |
| <span class="source-line-no">257</span><span id="line-257"> return compareResult < 0;</span> |
| <span class="source-line-no">258</span><span id="line-258"> case LESS_OR_EQUAL:</span> |
| <span class="source-line-no">259</span><span id="line-259"> return compareResult <= 0;</span> |
| <span class="source-line-no">260</span><span id="line-260"> case EQUAL:</span> |
| <span class="source-line-no">261</span><span id="line-261"> return compareResult == 0;</span> |
| <span class="source-line-no">262</span><span id="line-262"> case NOT_EQUAL:</span> |
| <span class="source-line-no">263</span><span id="line-263"> return compareResult != 0;</span> |
| <span class="source-line-no">264</span><span id="line-264"> case GREATER_OR_EQUAL:</span> |
| <span class="source-line-no">265</span><span id="line-265"> return compareResult >= 0;</span> |
| <span class="source-line-no">266</span><span id="line-266"> case GREATER:</span> |
| <span class="source-line-no">267</span><span id="line-267"> return compareResult > 0;</span> |
| <span class="source-line-no">268</span><span id="line-268"> default:</span> |
| <span class="source-line-no">269</span><span id="line-269"> throw new RuntimeException("Unknown Compare op " + op.name());</span> |
| <span class="source-line-no">270</span><span id="line-270"> }</span> |
| <span class="source-line-no">271</span><span id="line-271"> }</span> |
| <span class="source-line-no">272</span><span id="line-272"></span> |
| <span class="source-line-no">273</span><span id="line-273"> @Override</span> |
| <span class="source-line-no">274</span><span id="line-274"> public Iterable<Service> getServices() {</span> |
| <span class="source-line-no">275</span><span id="line-275"> return Collections.singleton(this);</span> |
| <span class="source-line-no">276</span><span id="line-276"> }</span> |
| <span class="source-line-no">277</span><span id="line-277"></span> |
| <span class="source-line-no">278</span><span id="line-278"> /**</span> |
| <span class="source-line-no">279</span><span id="line-279"> * Stores a reference to the coprocessor environment provided by the</span> |
| <span class="source-line-no">280</span><span id="line-280"> * {@link org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost} from the region where this</span> |
| <span class="source-line-no">281</span><span id="line-281"> * coprocessor is loaded. Since this is a coprocessor endpoint, it always expects to be loaded on</span> |
| <span class="source-line-no">282</span><span id="line-282"> * a table region, so always expects this to be an instance of</span> |
| <span class="source-line-no">283</span><span id="line-283"> * {@link RegionCoprocessorEnvironment}.</span> |
| <span class="source-line-no">284</span><span id="line-284"> * @param env the environment provided by the coprocessor host</span> |
| <span class="source-line-no">285</span><span id="line-285"> * @throws IOException if the provided environment is not an instance of</span> |
| <span class="source-line-no">286</span><span id="line-286"> * {@code RegionCoprocessorEnvironment}</span> |
| <span class="source-line-no">287</span><span id="line-287"> */</span> |
| <span class="source-line-no">288</span><span id="line-288"> @Override</span> |
| <span class="source-line-no">289</span><span id="line-289"> public void start(CoprocessorEnvironment env) throws IOException {</span> |
| <span class="source-line-no">290</span><span id="line-290"> if (env instanceof RegionCoprocessorEnvironment) {</span> |
| <span class="source-line-no">291</span><span id="line-291"> this.env = (RegionCoprocessorEnvironment) env;</span> |
| <span class="source-line-no">292</span><span id="line-292"> } else {</span> |
| <span class="source-line-no">293</span><span id="line-293"> throw new CoprocessorException("Must be loaded on a table region!");</span> |
| <span class="source-line-no">294</span><span id="line-294"> }</span> |
| <span class="source-line-no">295</span><span id="line-295"> }</span> |
| <span class="source-line-no">296</span><span id="line-296"></span> |
| <span class="source-line-no">297</span><span id="line-297"> @Override</span> |
| <span class="source-line-no">298</span><span id="line-298"> public void stop(CoprocessorEnvironment env) throws IOException {</span> |
| <span class="source-line-no">299</span><span id="line-299"> // nothing to do</span> |
| <span class="source-line-no">300</span><span id="line-300"> }</span> |
| <span class="source-line-no">301</span><span id="line-301">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
