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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.procedure2;</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 static org.junit.Assert.assertEquals;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.junit.Assert.assertTrue;</span> |
| <span class="source-line-no">022</span><span id="line-22"></span> |
| <span class="source-line-no">023</span><span id="line-23">import java.io.IOException;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.concurrent.atomic.AtomicInteger;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.fs.FileSystem;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.HBaseClassTestRule;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.HBaseCommonTestingUtil;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility.NoopProcedure;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.procedure2.store.ProcedureStore;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.testclassification.MasterTests;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.testclassification.MediumTests;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.junit.After;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.junit.Before;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.junit.ClassRule;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.junit.Test;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.slf4j.Logger;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">040</span><span id="line-40"></span> |
| <span class="source-line-no">041</span><span id="line-41">@Category({ MasterTests.class, MediumTests.class })</span> |
| <span class="source-line-no">042</span><span id="line-42">public class TestStateMachineProcedure {</span> |
| <span class="source-line-no">043</span><span id="line-43"> @ClassRule</span> |
| <span class="source-line-no">044</span><span id="line-44"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">045</span><span id="line-45"> HBaseClassTestRule.forClass(TestStateMachineProcedure.class);</span> |
| <span class="source-line-no">046</span><span id="line-46"></span> |
| <span class="source-line-no">047</span><span id="line-47"> private static final Logger LOG = LoggerFactory.getLogger(TestStateMachineProcedure.class);</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> private static final Exception TEST_FAILURE_EXCEPTION = new Exception("test failure") {</span> |
| <span class="source-line-no">050</span><span id="line-50"></span> |
| <span class="source-line-no">051</span><span id="line-51"> private static final long serialVersionUID = 2147942238987041310L;</span> |
| <span class="source-line-no">052</span><span id="line-52"></span> |
| <span class="source-line-no">053</span><span id="line-53"> @Override</span> |
| <span class="source-line-no">054</span><span id="line-54"> public boolean equals(final Object other) {</span> |
| <span class="source-line-no">055</span><span id="line-55"> if (this == other) {</span> |
| <span class="source-line-no">056</span><span id="line-56"> return true;</span> |
| <span class="source-line-no">057</span><span id="line-57"> }</span> |
| <span class="source-line-no">058</span><span id="line-58"></span> |
| <span class="source-line-no">059</span><span id="line-59"> if (!(other instanceof Exception)) {</span> |
| <span class="source-line-no">060</span><span id="line-60"> return false;</span> |
| <span class="source-line-no">061</span><span id="line-61"> }</span> |
| <span class="source-line-no">062</span><span id="line-62"></span> |
| <span class="source-line-no">063</span><span id="line-63"> // we are going to serialize the exception in the test,</span> |
| <span class="source-line-no">064</span><span id="line-64"> // so the instance comparison will not match</span> |
| <span class="source-line-no">065</span><span id="line-65"> return getMessage().equals(((Exception) other).getMessage());</span> |
| <span class="source-line-no">066</span><span id="line-66"> }</span> |
| <span class="source-line-no">067</span><span id="line-67"></span> |
| <span class="source-line-no">068</span><span id="line-68"> @Override</span> |
| <span class="source-line-no">069</span><span id="line-69"> public int hashCode() {</span> |
| <span class="source-line-no">070</span><span id="line-70"> return getMessage().hashCode();</span> |
| <span class="source-line-no">071</span><span id="line-71"> }</span> |
| <span class="source-line-no">072</span><span id="line-72"> };</span> |
| <span class="source-line-no">073</span><span id="line-73"></span> |
| <span class="source-line-no">074</span><span id="line-74"> private static final int PROCEDURE_EXECUTOR_SLOTS = 1;</span> |
| <span class="source-line-no">075</span><span id="line-75"></span> |
| <span class="source-line-no">076</span><span id="line-76"> private ProcedureExecutor<TestProcEnv> procExecutor;</span> |
| <span class="source-line-no">077</span><span id="line-77"> private ProcedureStore procStore;</span> |
| <span class="source-line-no">078</span><span id="line-78"></span> |
| <span class="source-line-no">079</span><span id="line-79"> private HBaseCommonTestingUtil htu;</span> |
| <span class="source-line-no">080</span><span id="line-80"> private FileSystem fs;</span> |
| <span class="source-line-no">081</span><span id="line-81"> private Path testDir;</span> |
| <span class="source-line-no">082</span><span id="line-82"> private Path logDir;</span> |
| <span class="source-line-no">083</span><span id="line-83"></span> |
| <span class="source-line-no">084</span><span id="line-84"> @Before</span> |
| <span class="source-line-no">085</span><span id="line-85"> public void setUp() throws IOException {</span> |
| <span class="source-line-no">086</span><span id="line-86"> htu = new HBaseCommonTestingUtil();</span> |
| <span class="source-line-no">087</span><span id="line-87"> testDir = htu.getDataTestDir();</span> |
| <span class="source-line-no">088</span><span id="line-88"> fs = testDir.getFileSystem(htu.getConfiguration());</span> |
| <span class="source-line-no">089</span><span id="line-89"></span> |
| <span class="source-line-no">090</span><span id="line-90"> logDir = new Path(testDir, "proc-logs");</span> |
| <span class="source-line-no">091</span><span id="line-91"> procStore = ProcedureTestingUtility.createWalStore(htu.getConfiguration(), logDir);</span> |
| <span class="source-line-no">092</span><span id="line-92"> procExecutor = new ProcedureExecutor<>(htu.getConfiguration(), new TestProcEnv(), procStore);</span> |
| <span class="source-line-no">093</span><span id="line-93"> procStore.start(PROCEDURE_EXECUTOR_SLOTS);</span> |
| <span class="source-line-no">094</span><span id="line-94"> ProcedureTestingUtility.initAndStartWorkers(procExecutor, PROCEDURE_EXECUTOR_SLOTS, true);</span> |
| <span class="source-line-no">095</span><span id="line-95"> }</span> |
| <span class="source-line-no">096</span><span id="line-96"></span> |
| <span class="source-line-no">097</span><span id="line-97"> @After</span> |
| <span class="source-line-no">098</span><span id="line-98"> public void tearDown() throws IOException {</span> |
| <span class="source-line-no">099</span><span id="line-99"> ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExecutor, false);</span> |
| <span class="source-line-no">100</span><span id="line-100"> assertTrue("expected executor to be running", procExecutor.isRunning());</span> |
| <span class="source-line-no">101</span><span id="line-101"></span> |
| <span class="source-line-no">102</span><span id="line-102"> procExecutor.stop();</span> |
| <span class="source-line-no">103</span><span id="line-103"> procStore.stop(false);</span> |
| <span class="source-line-no">104</span><span id="line-104"> fs.delete(logDir, true);</span> |
| <span class="source-line-no">105</span><span id="line-105"> }</span> |
| <span class="source-line-no">106</span><span id="line-106"></span> |
| <span class="source-line-no">107</span><span id="line-107"> @Test</span> |
| <span class="source-line-no">108</span><span id="line-108"> public void testAbortStuckProcedure() throws InterruptedException {</span> |
| <span class="source-line-no">109</span><span id="line-109"> try {</span> |
| <span class="source-line-no">110</span><span id="line-110"> procExecutor.getEnvironment().loop = true;</span> |
| <span class="source-line-no">111</span><span id="line-111"> TestSMProcedure proc = new TestSMProcedure();</span> |
| <span class="source-line-no">112</span><span id="line-112"> long procId = procExecutor.submitProcedure(proc);</span> |
| <span class="source-line-no">113</span><span id="line-113"> Thread.sleep(1000 + (int) (Math.random() * 4001));</span> |
| <span class="source-line-no">114</span><span id="line-114"> proc.abort(procExecutor.getEnvironment());</span> |
| <span class="source-line-no">115</span><span id="line-115"> ProcedureTestingUtility.waitProcedure(procExecutor, procId);</span> |
| <span class="source-line-no">116</span><span id="line-116"> assertEquals(true, proc.isFailed());</span> |
| <span class="source-line-no">117</span><span id="line-117"> } finally {</span> |
| <span class="source-line-no">118</span><span id="line-118"> procExecutor.getEnvironment().loop = false;</span> |
| <span class="source-line-no">119</span><span id="line-119"> }</span> |
| <span class="source-line-no">120</span><span id="line-120"> }</span> |
| <span class="source-line-no">121</span><span id="line-121"></span> |
| <span class="source-line-no">122</span><span id="line-122"> @Test</span> |
| <span class="source-line-no">123</span><span id="line-123"> public void testChildOnLastStep() {</span> |
| <span class="source-line-no">124</span><span id="line-124"> long procId = procExecutor.submitProcedure(new TestSMProcedure());</span> |
| <span class="source-line-no">125</span><span id="line-125"> ProcedureTestingUtility.waitProcedure(procExecutor, procId);</span> |
| <span class="source-line-no">126</span><span id="line-126"> assertEquals(3, procExecutor.getEnvironment().execCount.get());</span> |
| <span class="source-line-no">127</span><span id="line-127"> assertEquals(0, procExecutor.getEnvironment().rollbackCount.get());</span> |
| <span class="source-line-no">128</span><span id="line-128"> ProcedureTestingUtility.assertProcNotFailed(procExecutor, procId);</span> |
| <span class="source-line-no">129</span><span id="line-129"> }</span> |
| <span class="source-line-no">130</span><span id="line-130"></span> |
| <span class="source-line-no">131</span><span id="line-131"> @Test</span> |
| <span class="source-line-no">132</span><span id="line-132"> public void testChildOnLastStepDoubleExecution() throws Exception {</span> |
| <span class="source-line-no">133</span><span id="line-133"> ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExecutor, true);</span> |
| <span class="source-line-no">134</span><span id="line-134"> long procId = procExecutor.submitProcedure(new TestSMProcedure());</span> |
| <span class="source-line-no">135</span><span id="line-135"> ProcedureTestingUtility.testRecoveryAndDoubleExecution(procExecutor, procId);</span> |
| <span class="source-line-no">136</span><span id="line-136"> assertEquals(6, procExecutor.getEnvironment().execCount.get());</span> |
| <span class="source-line-no">137</span><span id="line-137"> assertEquals(0, procExecutor.getEnvironment().rollbackCount.get());</span> |
| <span class="source-line-no">138</span><span id="line-138"> ProcedureTestingUtility.assertProcNotFailed(procExecutor, procId);</span> |
| <span class="source-line-no">139</span><span id="line-139"> }</span> |
| <span class="source-line-no">140</span><span id="line-140"></span> |
| <span class="source-line-no">141</span><span id="line-141"> @Test</span> |
| <span class="source-line-no">142</span><span id="line-142"> public void testChildOnLastStepWithRollback() {</span> |
| <span class="source-line-no">143</span><span id="line-143"> procExecutor.getEnvironment().triggerChildRollback = true;</span> |
| <span class="source-line-no">144</span><span id="line-144"> long procId = procExecutor.submitProcedure(new TestSMProcedure());</span> |
| <span class="source-line-no">145</span><span id="line-145"> ProcedureTestingUtility.waitProcedure(procExecutor, procId);</span> |
| <span class="source-line-no">146</span><span id="line-146"> assertEquals(3, procExecutor.getEnvironment().execCount.get());</span> |
| <span class="source-line-no">147</span><span id="line-147"> assertEquals(3, procExecutor.getEnvironment().rollbackCount.get());</span> |
| <span class="source-line-no">148</span><span id="line-148"> Throwable cause = ProcedureTestingUtility.assertProcFailed(procExecutor, procId);</span> |
| <span class="source-line-no">149</span><span id="line-149"> assertEquals(TEST_FAILURE_EXCEPTION, cause);</span> |
| <span class="source-line-no">150</span><span id="line-150"> }</span> |
| <span class="source-line-no">151</span><span id="line-151"></span> |
| <span class="source-line-no">152</span><span id="line-152"> @Test</span> |
| <span class="source-line-no">153</span><span id="line-153"> public void testChildNormalRollbackStateCount() {</span> |
| <span class="source-line-no">154</span><span id="line-154"> procExecutor.getEnvironment().triggerChildRollback = true;</span> |
| <span class="source-line-no">155</span><span id="line-155"> TestSMProcedureBadRollback testNormalRollback = new TestSMProcedureBadRollback();</span> |
| <span class="source-line-no">156</span><span id="line-156"> long procId = procExecutor.submitProcedure(testNormalRollback);</span> |
| <span class="source-line-no">157</span><span id="line-157"> ProcedureTestingUtility.waitProcedure(procExecutor, procId);</span> |
| <span class="source-line-no">158</span><span id="line-158"> assertEquals(0, testNormalRollback.stateCount);</span> |
| <span class="source-line-no">159</span><span id="line-159"> }</span> |
| <span class="source-line-no">160</span><span id="line-160"></span> |
| <span class="source-line-no">161</span><span id="line-161"> @Test</span> |
| <span class="source-line-no">162</span><span id="line-162"> public void testChildBadRollbackStateCount() {</span> |
| <span class="source-line-no">163</span><span id="line-163"> procExecutor.getEnvironment().triggerChildRollback = true;</span> |
| <span class="source-line-no">164</span><span id="line-164"> TestSMProcedureBadRollback testBadRollback = new TestSMProcedureBadRollback();</span> |
| <span class="source-line-no">165</span><span id="line-165"> long procId = procExecutor.submitProcedure(testBadRollback);</span> |
| <span class="source-line-no">166</span><span id="line-166"> ProcedureTestingUtility.waitProcedure(procExecutor, procId);</span> |
| <span class="source-line-no">167</span><span id="line-167"> assertEquals(0, testBadRollback.stateCount);</span> |
| <span class="source-line-no">168</span><span id="line-168"> }</span> |
| <span class="source-line-no">169</span><span id="line-169"></span> |
| <span class="source-line-no">170</span><span id="line-170"> @Test</span> |
| <span class="source-line-no">171</span><span id="line-171"> public void testChildOnLastStepWithRollbackDoubleExecution() throws Exception {</span> |
| <span class="source-line-no">172</span><span id="line-172"> procExecutor.getEnvironment().triggerChildRollback = true;</span> |
| <span class="source-line-no">173</span><span id="line-173"> ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExecutor, true);</span> |
| <span class="source-line-no">174</span><span id="line-174"> ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdateInRollback(procExecutor, true);</span> |
| <span class="source-line-no">175</span><span id="line-175"> long procId = procExecutor.submitProcedure(new TestSMProcedure());</span> |
| <span class="source-line-no">176</span><span id="line-176"> ProcedureTestingUtility.testRecoveryAndDoubleExecution(procExecutor, procId, true);</span> |
| <span class="source-line-no">177</span><span id="line-177"> assertEquals(6, procExecutor.getEnvironment().execCount.get());</span> |
| <span class="source-line-no">178</span><span id="line-178"> assertEquals(6, procExecutor.getEnvironment().rollbackCount.get());</span> |
| <span class="source-line-no">179</span><span id="line-179"> Throwable cause = ProcedureTestingUtility.assertProcFailed(procExecutor, procId);</span> |
| <span class="source-line-no">180</span><span id="line-180"> assertEquals(TEST_FAILURE_EXCEPTION, cause);</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"> public enum TestSMProcedureState {</span> |
| <span class="source-line-no">184</span><span id="line-184"> STEP_1,</span> |
| <span class="source-line-no">185</span><span id="line-185"> STEP_2</span> |
| <span class="source-line-no">186</span><span id="line-186"> }</span> |
| <span class="source-line-no">187</span><span id="line-187"></span> |
| <span class="source-line-no">188</span><span id="line-188"> public static class TestSMProcedure</span> |
| <span class="source-line-no">189</span><span id="line-189"> extends StateMachineProcedure<TestProcEnv, TestSMProcedureState> {</span> |
| <span class="source-line-no">190</span><span id="line-190"> @Override</span> |
| <span class="source-line-no">191</span><span id="line-191"> protected Flow executeFromState(TestProcEnv env, TestSMProcedureState state) {</span> |
| <span class="source-line-no">192</span><span id="line-192"> LOG.info("EXEC " + state + " " + this);</span> |
| <span class="source-line-no">193</span><span id="line-193"> env.execCount.incrementAndGet();</span> |
| <span class="source-line-no">194</span><span id="line-194"> switch (state) {</span> |
| <span class="source-line-no">195</span><span id="line-195"> case STEP_1:</span> |
| <span class="source-line-no">196</span><span id="line-196"> if (!env.loop) {</span> |
| <span class="source-line-no">197</span><span id="line-197"> setNextState(TestSMProcedureState.STEP_2);</span> |
| <span class="source-line-no">198</span><span id="line-198"> }</span> |
| <span class="source-line-no">199</span><span id="line-199"> break;</span> |
| <span class="source-line-no">200</span><span id="line-200"> case STEP_2:</span> |
| <span class="source-line-no">201</span><span id="line-201"> addChildProcedure(new SimpleChildProcedure());</span> |
| <span class="source-line-no">202</span><span id="line-202"> return Flow.NO_MORE_STATE;</span> |
| <span class="source-line-no">203</span><span id="line-203"> }</span> |
| <span class="source-line-no">204</span><span id="line-204"> return Flow.HAS_MORE_STATE;</span> |
| <span class="source-line-no">205</span><span id="line-205"> }</span> |
| <span class="source-line-no">206</span><span id="line-206"></span> |
| <span class="source-line-no">207</span><span id="line-207"> @Override</span> |
| <span class="source-line-no">208</span><span id="line-208"> protected boolean isRollbackSupported(TestSMProcedureState state) {</span> |
| <span class="source-line-no">209</span><span id="line-209"> return true;</span> |
| <span class="source-line-no">210</span><span id="line-210"> }</span> |
| <span class="source-line-no">211</span><span id="line-211"></span> |
| <span class="source-line-no">212</span><span id="line-212"> @Override</span> |
| <span class="source-line-no">213</span><span id="line-213"> protected void rollbackState(TestProcEnv env, TestSMProcedureState state) {</span> |
| <span class="source-line-no">214</span><span id="line-214"> LOG.info("ROLLBACK " + state + " " + this);</span> |
| <span class="source-line-no">215</span><span id="line-215"> env.rollbackCount.incrementAndGet();</span> |
| <span class="source-line-no">216</span><span id="line-216"> }</span> |
| <span class="source-line-no">217</span><span id="line-217"></span> |
| <span class="source-line-no">218</span><span id="line-218"> @Override</span> |
| <span class="source-line-no">219</span><span id="line-219"> protected TestSMProcedureState getState(int stateId) {</span> |
| <span class="source-line-no">220</span><span id="line-220"> return TestSMProcedureState.values()[stateId];</span> |
| <span class="source-line-no">221</span><span id="line-221"> }</span> |
| <span class="source-line-no">222</span><span id="line-222"></span> |
| <span class="source-line-no">223</span><span id="line-223"> @Override</span> |
| <span class="source-line-no">224</span><span id="line-224"> protected int getStateId(TestSMProcedureState state) {</span> |
| <span class="source-line-no">225</span><span id="line-225"> return state.ordinal();</span> |
| <span class="source-line-no">226</span><span id="line-226"> }</span> |
| <span class="source-line-no">227</span><span id="line-227"></span> |
| <span class="source-line-no">228</span><span id="line-228"> @Override</span> |
| <span class="source-line-no">229</span><span id="line-229"> protected TestSMProcedureState getInitialState() {</span> |
| <span class="source-line-no">230</span><span id="line-230"> return TestSMProcedureState.STEP_1;</span> |
| <span class="source-line-no">231</span><span id="line-231"> }</span> |
| <span class="source-line-no">232</span><span id="line-232"> }</span> |
| <span class="source-line-no">233</span><span id="line-233"></span> |
| <span class="source-line-no">234</span><span id="line-234"> public static class TestSMProcedureBadRollback</span> |
| <span class="source-line-no">235</span><span id="line-235"> extends StateMachineProcedure<TestProcEnv, TestSMProcedureState> {</span> |
| <span class="source-line-no">236</span><span id="line-236"> @Override</span> |
| <span class="source-line-no">237</span><span id="line-237"> protected Flow executeFromState(TestProcEnv env, TestSMProcedureState state) {</span> |
| <span class="source-line-no">238</span><span id="line-238"> LOG.info("EXEC " + state + " " + this);</span> |
| <span class="source-line-no">239</span><span id="line-239"> env.execCount.incrementAndGet();</span> |
| <span class="source-line-no">240</span><span id="line-240"> switch (state) {</span> |
| <span class="source-line-no">241</span><span id="line-241"> case STEP_1:</span> |
| <span class="source-line-no">242</span><span id="line-242"> if (!env.loop) {</span> |
| <span class="source-line-no">243</span><span id="line-243"> setNextState(TestSMProcedureState.STEP_2);</span> |
| <span class="source-line-no">244</span><span id="line-244"> }</span> |
| <span class="source-line-no">245</span><span id="line-245"> break;</span> |
| <span class="source-line-no">246</span><span id="line-246"> case STEP_2:</span> |
| <span class="source-line-no">247</span><span id="line-247"> addChildProcedure(new SimpleChildProcedure());</span> |
| <span class="source-line-no">248</span><span id="line-248"> return Flow.NO_MORE_STATE;</span> |
| <span class="source-line-no">249</span><span id="line-249"> }</span> |
| <span class="source-line-no">250</span><span id="line-250"> return Flow.HAS_MORE_STATE;</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"> @Override</span> |
| <span class="source-line-no">254</span><span id="line-254"> protected boolean isRollbackSupported(TestSMProcedureState state) {</span> |
| <span class="source-line-no">255</span><span id="line-255"> return true;</span> |
| <span class="source-line-no">256</span><span id="line-256"> }</span> |
| <span class="source-line-no">257</span><span id="line-257"></span> |
| <span class="source-line-no">258</span><span id="line-258"> @Override</span> |
| <span class="source-line-no">259</span><span id="line-259"> protected void rollbackState(TestProcEnv env, TestSMProcedureState state) {</span> |
| <span class="source-line-no">260</span><span id="line-260"> LOG.info("ROLLBACK " + state + " " + this);</span> |
| <span class="source-line-no">261</span><span id="line-261"> env.rollbackCount.incrementAndGet();</span> |
| <span class="source-line-no">262</span><span id="line-262"> }</span> |
| <span class="source-line-no">263</span><span id="line-263"></span> |
| <span class="source-line-no">264</span><span id="line-264"> @Override</span> |
| <span class="source-line-no">265</span><span id="line-265"> protected TestSMProcedureState getState(int stateId) {</span> |
| <span class="source-line-no">266</span><span id="line-266"> return TestSMProcedureState.values()[stateId];</span> |
| <span class="source-line-no">267</span><span id="line-267"> }</span> |
| <span class="source-line-no">268</span><span id="line-268"></span> |
| <span class="source-line-no">269</span><span id="line-269"> @Override</span> |
| <span class="source-line-no">270</span><span id="line-270"> protected int getStateId(TestSMProcedureState state) {</span> |
| <span class="source-line-no">271</span><span id="line-271"> return state.ordinal();</span> |
| <span class="source-line-no">272</span><span id="line-272"> }</span> |
| <span class="source-line-no">273</span><span id="line-273"></span> |
| <span class="source-line-no">274</span><span id="line-274"> @Override</span> |
| <span class="source-line-no">275</span><span id="line-275"> protected TestSMProcedureState getInitialState() {</span> |
| <span class="source-line-no">276</span><span id="line-276"> return TestSMProcedureState.STEP_1;</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"> @Override</span> |
| <span class="source-line-no">280</span><span id="line-280"> protected void rollback(final TestProcEnv env) throws IOException, InterruptedException {</span> |
| <span class="source-line-no">281</span><span id="line-281"> if (isEofState()) {</span> |
| <span class="source-line-no">282</span><span id="line-282"> stateCount--;</span> |
| <span class="source-line-no">283</span><span id="line-283"> }</span> |
| <span class="source-line-no">284</span><span id="line-284"> try {</span> |
| <span class="source-line-no">285</span><span id="line-285"> updateTimestamp();</span> |
| <span class="source-line-no">286</span><span id="line-286"> rollbackState(env, getCurrentState());</span> |
| <span class="source-line-no">287</span><span id="line-287"> throw new IOException();</span> |
| <span class="source-line-no">288</span><span id="line-288"> } catch (IOException e) {</span> |
| <span class="source-line-no">289</span><span id="line-289"> // do nothing for now</span> |
| <span class="source-line-no">290</span><span id="line-290"> } finally {</span> |
| <span class="source-line-no">291</span><span id="line-291"> stateCount--;</span> |
| <span class="source-line-no">292</span><span id="line-292"> updateTimestamp();</span> |
| <span class="source-line-no">293</span><span id="line-293"> }</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"> public static class SimpleChildProcedure extends NoopProcedure<TestProcEnv> {</span> |
| <span class="source-line-no">298</span><span id="line-298"> @Override</span> |
| <span class="source-line-no">299</span><span id="line-299"> protected Procedure<TestProcEnv>[] execute(TestProcEnv env) {</span> |
| <span class="source-line-no">300</span><span id="line-300"> LOG.info("EXEC " + this);</span> |
| <span class="source-line-no">301</span><span id="line-301"> env.execCount.incrementAndGet();</span> |
| <span class="source-line-no">302</span><span id="line-302"> if (env.triggerChildRollback) {</span> |
| <span class="source-line-no">303</span><span id="line-303"> setFailure("test-failure", TEST_FAILURE_EXCEPTION);</span> |
| <span class="source-line-no">304</span><span id="line-304"> }</span> |
| <span class="source-line-no">305</span><span id="line-305"> return null;</span> |
| <span class="source-line-no">306</span><span id="line-306"> }</span> |
| <span class="source-line-no">307</span><span id="line-307"></span> |
| <span class="source-line-no">308</span><span id="line-308"> @Override</span> |
| <span class="source-line-no">309</span><span id="line-309"> protected void rollback(TestProcEnv env) {</span> |
| <span class="source-line-no">310</span><span id="line-310"> LOG.info("ROLLBACK " + this);</span> |
| <span class="source-line-no">311</span><span id="line-311"> env.rollbackCount.incrementAndGet();</span> |
| <span class="source-line-no">312</span><span id="line-312"> }</span> |
| <span class="source-line-no">313</span><span id="line-313"> }</span> |
| <span class="source-line-no">314</span><span id="line-314"></span> |
| <span class="source-line-no">315</span><span id="line-315"> public static class TestProcEnv {</span> |
| <span class="source-line-no">316</span><span id="line-316"> AtomicInteger execCount = new AtomicInteger(0);</span> |
| <span class="source-line-no">317</span><span id="line-317"> AtomicInteger rollbackCount = new AtomicInteger(0);</span> |
| <span class="source-line-no">318</span><span id="line-318"> boolean triggerChildRollback = false;</span> |
| <span class="source-line-no">319</span><span id="line-319"> boolean loop = false;</span> |
| <span class="source-line-no">320</span><span id="line-320"> }</span> |
| <span class="source-line-no">321</span><span id="line-321">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
