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Merge pull request #12 from Serviceware/checkpoints-and-checkpoint-st…
…ates-are-removed Checkpoints and checkpoint states are removed
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172 changes: 172 additions & 0 deletions
172
src/test/java/com/espro/flink/consul/checkpoint/CheckpointTestHelper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,172 @@ | ||
| /* | ||
| * Copyright (c) SABIO GmbH, Hamburg 2020 - All rights reserved | ||
| */ | ||
| package com.espro.flink.consul.checkpoint; | ||
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| import static org.junit.Assert.assertTrue; | ||
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| import java.util.Collection; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.concurrent.CountDownLatch; | ||
| import java.util.concurrent.TimeUnit; | ||
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|
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| import org.apache.flink.api.common.JobID; | ||
| import org.apache.flink.api.common.JobStatus; | ||
| import org.apache.flink.runtime.checkpoint.CheckpointProperties; | ||
| import org.apache.flink.runtime.checkpoint.CheckpointRetentionPolicy; | ||
| import org.apache.flink.runtime.checkpoint.CompletedCheckpoint; | ||
| import org.apache.flink.runtime.checkpoint.CompletedCheckpointStoreTest; | ||
| import org.apache.flink.runtime.checkpoint.CompletedCheckpointStoreTest.TestOperatorSubtaskState; | ||
| import org.apache.flink.runtime.checkpoint.OperatorState; | ||
| import org.apache.flink.runtime.checkpoint.OperatorSubtaskState; | ||
| import org.apache.flink.runtime.jobgraph.OperatorID; | ||
| import org.apache.flink.runtime.state.SharedStateRegistry; | ||
| import org.apache.flink.runtime.state.testutils.TestCompletedCheckpointStorageLocation; | ||
|
|
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| /** | ||
| * Some of these methods and class are taken from flink test module. Providing simple use of the checkpointing. | ||
| */ | ||
| public class CheckpointTestHelper { | ||
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| /** | ||
| * Taken from {@link CompletedCheckpointStoreTest}. | ||
| * | ||
| * @param id - checkpijt id | ||
| * @param sharedStateRegistry - shared state registry | ||
| * @return {@link TestCompletedCheckpoint} | ||
| */ | ||
| public static TestCompletedCheckpoint createCheckpoint(long id, SharedStateRegistry sharedStateRegistry) { | ||
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| int numberOfStates = 4; | ||
| CheckpointProperties props = CheckpointProperties.forCheckpoint(CheckpointRetentionPolicy.NEVER_RETAIN_AFTER_TERMINATION); | ||
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| OperatorID operatorID = new OperatorID(); | ||
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| Map<OperatorID, OperatorState> operatorGroupState = new HashMap<>(); | ||
| OperatorState operatorState = new OperatorState(operatorID, numberOfStates, numberOfStates); | ||
| operatorGroupState.put(operatorID, operatorState); | ||
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| for (int i = 0; i < numberOfStates; i++) { | ||
| OperatorSubtaskState subtaskState = new TestOperatorSubtaskState(); | ||
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| operatorState.putState(i, subtaskState); | ||
| } | ||
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| operatorState.registerSharedStates(sharedStateRegistry); | ||
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| return new TestCompletedCheckpoint(new JobID(), id, 0, operatorGroupState, props); | ||
| } | ||
|
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| /** | ||
| * Taken from {@link CompletedCheckpointStoreTest}. | ||
| * | ||
| * @param completedCheckpoint | ||
| */ | ||
| public static void verifyCheckpointDiscarded(TestCompletedCheckpoint completedCheckpoint) { | ||
| assertTrue(completedCheckpoint.isDiscarded()); | ||
| verifyCheckpointDiscarded(completedCheckpoint.getOperatorStates().values()); | ||
| } | ||
|
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| /** | ||
| * Taken from {@link CompletedCheckpointStoreTest}. | ||
| * | ||
| * @param operatorStates | ||
| */ | ||
| private static void verifyCheckpointDiscarded(Collection<OperatorState> operatorStates) { | ||
| for (OperatorState operatorState : operatorStates) { | ||
| for (OperatorSubtaskState subtaskState : operatorState.getStates()) { | ||
| assertTrue(((TestOperatorSubtaskState) subtaskState).isDiscarded()); | ||
| } | ||
| } | ||
| } | ||
|
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| protected static class TestCompletedCheckpoint extends CompletedCheckpoint { | ||
|
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| private static final long serialVersionUID = 4211419809665983026L; | ||
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| private boolean isDiscarded; | ||
|
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| // Latch for test variants which discard asynchronously | ||
| private transient final CountDownLatch discardLatch = new CountDownLatch(1); | ||
|
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| public TestCompletedCheckpoint( | ||
| JobID jobId, | ||
| long checkpointId, | ||
| long timestamp, | ||
| Map<OperatorID, OperatorState> operatorGroupState, | ||
| CheckpointProperties props) { | ||
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| super(jobId, checkpointId, timestamp, Long.MAX_VALUE, operatorGroupState, null, props, | ||
| new TestCompletedCheckpointStorageLocation()); | ||
| } | ||
|
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| @Override | ||
| public boolean discardOnSubsume() throws Exception { | ||
| if (super.discardOnSubsume()) { | ||
| discard(); | ||
| return true; | ||
| } else { | ||
| return false; | ||
| } | ||
| } | ||
|
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| @Override | ||
| public boolean discardOnShutdown(JobStatus jobStatus) throws Exception { | ||
| if (super.discardOnShutdown(jobStatus)) { | ||
| discard(); | ||
| return true; | ||
| } else { | ||
| return false; | ||
| } | ||
| } | ||
|
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| void discard() { | ||
| if (!isDiscarded) { | ||
| this.isDiscarded = true; | ||
|
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| if (discardLatch != null) { | ||
| discardLatch.countDown(); | ||
| } | ||
| } | ||
| } | ||
|
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| public boolean isDiscarded() { | ||
| return isDiscarded; | ||
| } | ||
|
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| public void awaitDiscard() throws InterruptedException { | ||
| if (discardLatch != null) { | ||
| discardLatch.await(); | ||
| } | ||
| } | ||
|
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| public boolean awaitDiscard(long timeout) throws InterruptedException { | ||
| if (discardLatch != null) { | ||
| return discardLatch.await(timeout, TimeUnit.MILLISECONDS); | ||
| } else { | ||
| return false; | ||
| } | ||
| } | ||
|
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| @Override | ||
| public boolean equals(Object o) { | ||
| if (this == o) { | ||
| return true; | ||
| } | ||
| if (o == null || getClass() != o.getClass()) { | ||
| return false; | ||
| } | ||
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| TestCompletedCheckpoint that = (TestCompletedCheckpoint) o; | ||
|
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| return getJobId().equals(that.getJobId()) | ||
| && getCheckpointID() == that.getCheckpointID(); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return getJobId().hashCode() + (int) getCheckpointID(); | ||
| } | ||
| } | ||
| } |
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