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| 1 | +/* |
| 2 | + * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | + * or more contributor license agreements. See the NOTICE file |
| 4 | + * distributed with this work for additional information |
| 5 | + * regarding copyright ownership. The ASF licenses this file |
| 6 | + * to you under the Apache License, Version 2.0 (the |
| 7 | + * "License"); you may not use this file except in compliance |
| 8 | + * with the License. You may obtain a copy of the License at |
| 9 | + * |
| 10 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | + * |
| 12 | + * Unless required by applicable law or agreed to in writing, |
| 13 | + * software distributed under the License is distributed on an |
| 14 | + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | + * KIND, either express or implied. See the License for the |
| 16 | + * specific language governing permissions and limitations |
| 17 | + * under the License. |
| 18 | + */ |
| 19 | + |
| 20 | +package org.apache.iotdb.confignode.procedure.impl.pipe; |
| 21 | + |
| 22 | +import org.apache.iotdb.confignode.persistence.pipe.PipeTaskInfo; |
| 23 | +import org.apache.iotdb.confignode.procedure.Procedure; |
| 24 | +import org.apache.iotdb.confignode.procedure.impl.StateMachineProcedure; |
| 25 | +import org.apache.iotdb.confignode.procedure.state.pipe.task.OperatePipeTaskState; |
| 26 | +import org.apache.iotdb.pipe.api.exception.PipeException; |
| 27 | + |
| 28 | +import org.junit.Assert; |
| 29 | +import org.junit.Test; |
| 30 | + |
| 31 | +import java.io.IOException; |
| 32 | +import java.util.concurrent.atomic.AtomicReference; |
| 33 | + |
| 34 | +public class AbstractOperatePipeProcedureV2Test { |
| 35 | + |
| 36 | + @Test |
| 37 | + public void testSuccessfulStateDoesNotYield() throws Exception { |
| 38 | + final TestOperatePipeProcedure procedure = new TestOperatePipeProcedure(); |
| 39 | + |
| 40 | + Assert.assertEquals( |
| 41 | + StateMachineProcedure.Flow.HAS_MORE_STATE, |
| 42 | + procedure.executeFromState(null, OperatePipeTaskState.VALIDATE_TASK)); |
| 43 | + |
| 44 | + Assert.assertFalse(procedure.isYieldAfterExecution(null)); |
| 45 | + Assert.assertEquals(1, procedure.validateExecutionCount); |
| 46 | + } |
| 47 | + |
| 48 | + @Test |
| 49 | + public void testRetryStateYieldsAndResetsAfterNextExecution() throws Exception { |
| 50 | + final TestOperatePipeProcedure procedure = new TestOperatePipeProcedure(); |
| 51 | + procedure.failValidation = true; |
| 52 | + |
| 53 | + Assert.assertEquals( |
| 54 | + StateMachineProcedure.Flow.HAS_MORE_STATE, |
| 55 | + procedure.executeFromState(null, OperatePipeTaskState.VALIDATE_TASK)); |
| 56 | + |
| 57 | + Assert.assertTrue(procedure.isYieldAfterExecution(null)); |
| 58 | + Assert.assertEquals(1, procedure.validateExecutionCount); |
| 59 | + |
| 60 | + procedure.failValidation = false; |
| 61 | + Assert.assertEquals( |
| 62 | + StateMachineProcedure.Flow.HAS_MORE_STATE, |
| 63 | + procedure.executeFromState(null, OperatePipeTaskState.VALIDATE_TASK)); |
| 64 | + |
| 65 | + Assert.assertFalse(procedure.isYieldAfterExecution(null)); |
| 66 | + Assert.assertEquals(2, procedure.validateExecutionCount); |
| 67 | + } |
| 68 | + |
| 69 | + @Test |
| 70 | + public void testRetryStateYieldsOnlyBeforeRetryThreshold() throws Exception { |
| 71 | + final TestOperatePipeProcedure procedure = new TestOperatePipeProcedure(); |
| 72 | + |
| 73 | + final Procedure<?>[] validateSubProcedures = procedure.runOnce(); |
| 74 | + Assert.assertEquals(1, validateSubProcedures.length); |
| 75 | + Assert.assertSame(procedure, validateSubProcedures[0]); |
| 76 | + Assert.assertFalse(procedure.isYieldAfterExecution(null)); |
| 77 | + |
| 78 | + procedure.failCalculation = true; |
| 79 | + final Procedure<?>[] calculateSubProcedures = procedure.runOnce(); |
| 80 | + Assert.assertEquals(1, calculateSubProcedures.length); |
| 81 | + Assert.assertSame(procedure, calculateSubProcedures[0]); |
| 82 | + Assert.assertTrue(procedure.isYieldAfterExecution(null)); |
| 83 | + Assert.assertEquals(1, procedure.calculateExecutionCount); |
| 84 | + |
| 85 | + Assert.assertNull(procedure.runOnce()); |
| 86 | + Assert.assertTrue(procedure.hasException()); |
| 87 | + Assert.assertFalse(procedure.isYieldAfterExecution(null)); |
| 88 | + Assert.assertEquals(2, procedure.calculateExecutionCount); |
| 89 | + } |
| 90 | + |
| 91 | + private static class TestOperatePipeProcedure extends AbstractOperatePipeProcedureV2 { |
| 92 | + |
| 93 | + private int validateExecutionCount; |
| 94 | + private int calculateExecutionCount; |
| 95 | + private boolean failValidation; |
| 96 | + private boolean failCalculation; |
| 97 | + |
| 98 | + private TestOperatePipeProcedure() { |
| 99 | + pipeTaskInfo = new AtomicReference<>(new PipeTaskInfo()); |
| 100 | + } |
| 101 | + |
| 102 | + private Procedure<?>[] runOnce() throws InterruptedException { |
| 103 | + return execute(null); |
| 104 | + } |
| 105 | + |
| 106 | + @Override |
| 107 | + protected PipeTaskOperation getOperation() { |
| 108 | + return PipeTaskOperation.START_PIPE; |
| 109 | + } |
| 110 | + |
| 111 | + @Override |
| 112 | + public boolean executeFromValidateTask( |
| 113 | + final org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv env) |
| 114 | + throws PipeException { |
| 115 | + validateExecutionCount++; |
| 116 | + if (failValidation) { |
| 117 | + throw new PipeException("retry"); |
| 118 | + } |
| 119 | + return true; |
| 120 | + } |
| 121 | + |
| 122 | + @Override |
| 123 | + public void executeFromCalculateInfoForTask( |
| 124 | + final org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv env) { |
| 125 | + calculateExecutionCount++; |
| 126 | + if (failCalculation) { |
| 127 | + throw new RuntimeException("retry"); |
| 128 | + } |
| 129 | + } |
| 130 | + |
| 131 | + @Override |
| 132 | + public void executeFromWriteConfigNodeConsensus( |
| 133 | + final org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv env) { |
| 134 | + // Do nothing |
| 135 | + } |
| 136 | + |
| 137 | + @Override |
| 138 | + public void executeFromOperateOnDataNodes( |
| 139 | + final org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv env) { |
| 140 | + // Do nothing |
| 141 | + } |
| 142 | + |
| 143 | + @Override |
| 144 | + public void rollbackFromValidateTask( |
| 145 | + final org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv env) { |
| 146 | + // Do nothing |
| 147 | + } |
| 148 | + |
| 149 | + @Override |
| 150 | + public void rollbackFromCalculateInfoForTask( |
| 151 | + final org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv env) { |
| 152 | + // Do nothing |
| 153 | + } |
| 154 | + |
| 155 | + @Override |
| 156 | + public void rollbackFromWriteConfigNodeConsensus( |
| 157 | + final org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv env) { |
| 158 | + // Do nothing |
| 159 | + } |
| 160 | + |
| 161 | + @Override |
| 162 | + public void rollbackFromOperateOnDataNodes( |
| 163 | + final org.apache.iotdb.confignode.procedure.env.ConfigNodeProcedureEnv env) |
| 164 | + throws IOException { |
| 165 | + // Do nothing |
| 166 | + } |
| 167 | + } |
| 168 | +} |
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