org.apache.flink.runtime.jobgraph.tasks.InputSplitProvider Java Examples

@Override
public InputSplitProvider getInputSplitProvider() {
	try {
		this.inputSplits = format.createInputSplits(noOfSplits);
		Assert.assertTrue(inputSplits.length == noOfSplits);
	} catch (IOException e) {
		e.printStackTrace();
	}

	return new InputSplitProvider() {
		@Override
		public InputSplit getNextInputSplit(ClassLoader userCodeClassLoader) {
			if (nextSplit < inputSplits.length) {
				return inputSplits[nextSplit++];
			}
			return null;
		}
	};
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	try {
		this.inputSplits = format.createInputSplits(noOfSplits);
		Assert.assertTrue(inputSplits.length == noOfSplits);
	} catch (IOException e) {
		e.printStackTrace();
	}

	return new InputSplitProvider() {
		@Override
		public InputSplit getNextInputSplit(ClassLoader userCodeClassLoader) {
			if (nextSplit < inputSplits.length) {
				return inputSplits[nextSplit++];
			}
			return null;
		}
	};
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	try {
		this.inputSplits = format.createInputSplits(noOfSplits);
		Assert.assertTrue(inputSplits.length == noOfSplits);
	} catch (IOException e) {
		e.printStackTrace();
	}

	return new InputSplitProvider() {
		@Override
		public InputSplit getNextInputSplit(ClassLoader userCodeClassLoader) {
			if (nextSplit < inputSplits.length) {
				return inputSplits[nextSplit++];
			}
			return null;
		}
	};
}
 

public SequenceReader(AbstractParallelSourceBase<T, ?> source, InputSplitProvider provider, Configuration config) {
	this.sourceFunction = source;
	this.inputSplitProvider = provider;
	this.config = config;
	RuntimeContext context = source.getRuntimeContext();
	outputCounter = context.getMetricGroup().counter(MetricUtils.METRICS_TPS + "_counter", new SimpleCounter());
	tpsMetric = context.getMetricGroup().meter(MetricUtils.METRICS_TPS, new MeterView(outputCounter, 60));
}
 

public RuntimeEnvironment(
		JobID jobId,
		JobVertexID jobVertexId,
		ExecutionAttemptID executionId,
		ExecutionConfig executionConfig,
		TaskInfo taskInfo,
		Configuration jobConfiguration,
		Configuration taskConfiguration,
		ClassLoader userCodeClassLoader,
		MemoryManager memManager,
		IOManager ioManager,
		BroadcastVariableManager bcVarManager,
		TaskStateManager taskStateManager,
		GlobalAggregateManager aggregateManager,
		AccumulatorRegistry accumulatorRegistry,
		TaskKvStateRegistry kvStateRegistry,
		InputSplitProvider splitProvider,
		Map<String, Future<Path>> distCacheEntries,
		ResultPartitionWriter[] writers,
		IndexedInputGate[] inputGates,
		TaskEventDispatcher taskEventDispatcher,
		CheckpointResponder checkpointResponder,
		TaskOperatorEventGateway operatorEventGateway,
		TaskManagerRuntimeInfo taskManagerInfo,
		TaskMetricGroup metrics,
		Task containingTask,
		ExternalResourceInfoProvider externalResourceInfoProvider) {

	this.jobId = checkNotNull(jobId);
	this.jobVertexId = checkNotNull(jobVertexId);
	this.executionId = checkNotNull(executionId);
	this.taskInfo = checkNotNull(taskInfo);
	this.executionConfig = checkNotNull(executionConfig);
	this.jobConfiguration = checkNotNull(jobConfiguration);
	this.taskConfiguration = checkNotNull(taskConfiguration);
	this.userCodeClassLoader = checkNotNull(userCodeClassLoader);
	this.memManager = checkNotNull(memManager);
	this.ioManager = checkNotNull(ioManager);
	this.bcVarManager = checkNotNull(bcVarManager);
	this.taskStateManager = checkNotNull(taskStateManager);
	this.aggregateManager = checkNotNull(aggregateManager);
	this.accumulatorRegistry = checkNotNull(accumulatorRegistry);
	this.kvStateRegistry = checkNotNull(kvStateRegistry);
	this.splitProvider = checkNotNull(splitProvider);
	this.distCacheEntries = checkNotNull(distCacheEntries);
	this.writers = checkNotNull(writers);
	this.inputGates = checkNotNull(inputGates);
	this.taskEventDispatcher = checkNotNull(taskEventDispatcher);
	this.checkpointResponder = checkNotNull(checkpointResponder);
	this.operatorEventGateway = checkNotNull(operatorEventGateway);
	this.taskManagerInfo = checkNotNull(taskManagerInfo);
	this.containingTask = containingTask;
	this.metrics = metrics;
	this.externalResourceInfoProvider = checkNotNull(externalResourceInfoProvider);
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	return null;
}
 

private static Task createTask(
	StreamOperator<?> op,
	StateBackend backend,
	CheckpointResponder checkpointResponder) throws IOException {

	Configuration taskConfig = new Configuration();
	StreamConfig cfg = new StreamConfig(taskConfig);
	cfg.setStreamOperator(op);
	cfg.setOperatorID(new OperatorID());
	cfg.setStateBackend(backend);

	ExecutionConfig executionConfig = new ExecutionConfig();

	JobInformation jobInformation = new JobInformation(
			new JobID(),
			"test job name",
			new SerializedValue<>(executionConfig),
			new Configuration(),
			Collections.emptyList(),
			Collections.emptyList());

	TaskInformation taskInformation = new TaskInformation(
			new JobVertexID(),
			"test task name",
			1,
			11,
			TestStreamTask.class.getName(),
			taskConfig);

	ShuffleEnvironment<?, ?> shuffleEnvironment = new NettyShuffleEnvironmentBuilder().build();

	return new Task(
			jobInformation,
			taskInformation,
			new ExecutionAttemptID(),
			new AllocationID(),
			0,
			0,
			Collections.<ResultPartitionDeploymentDescriptor>emptyList(),
			Collections.<InputGateDeploymentDescriptor>emptyList(),
			0,
			mock(MemoryManager.class),
			mock(IOManager.class),
			shuffleEnvironment,
			new KvStateService(new KvStateRegistry(), null, null),
			mock(BroadcastVariableManager.class),
			new TaskEventDispatcher(),
			ExternalResourceInfoProvider.NO_EXTERNAL_RESOURCES,
			new TestTaskStateManager(),
			mock(TaskManagerActions.class),
			mock(InputSplitProvider.class),
			checkpointResponder,
			new NoOpTaskOperatorEventGateway(),
			new TestGlobalAggregateManager(),
			TestingClassLoaderLease.newBuilder().build(),
			new FileCache(new String[] { EnvironmentInformation.getTemporaryFileDirectory() },
				VoidPermanentBlobService.INSTANCE),
			new TestingTaskManagerRuntimeInfo(),
			UnregisteredMetricGroups.createUnregisteredTaskMetricGroup(),
			new NoOpResultPartitionConsumableNotifier(),
			mock(PartitionProducerStateChecker.class),
			Executors.directExecutor());
}
 

/**
 * FLINK-6833
 *
 * <p>Tests that a finished stream task cannot be failed by an asynchronous checkpointing operation after
 * the stream task has stopped running.
 */
@Test
public void testConcurrentAsyncCheckpointCannotFailFinishedStreamTask() throws Exception {
	final Configuration taskConfiguration = new Configuration();
	final StreamConfig streamConfig = new StreamConfig(taskConfiguration);
	final NoOpStreamOperator<Long> noOpStreamOperator = new NoOpStreamOperator<>();

	final StateBackend blockingStateBackend = new BlockingStateBackend();

	streamConfig.setStreamOperator(noOpStreamOperator);
	streamConfig.setOperatorID(new OperatorID());
	streamConfig.setStateBackend(blockingStateBackend);

	final long checkpointId = 0L;
	final long checkpointTimestamp = 0L;

	final JobInformation jobInformation = new JobInformation(
		new JobID(),
		"Test Job",
		new SerializedValue<>(new ExecutionConfig()),
		new Configuration(),
		Collections.emptyList(),
		Collections.emptyList());

	final TaskInformation taskInformation = new TaskInformation(
		new JobVertexID(),
		"Test Task",
		1,
		1,
		BlockingStreamTask.class.getName(),
		taskConfiguration);

	final TaskManagerRuntimeInfo taskManagerRuntimeInfo = new TestingTaskManagerRuntimeInfo();

	final ShuffleEnvironment<?, ?> shuffleEnvironment = new NettyShuffleEnvironmentBuilder().build();

	BlobCacheService blobService =
		new BlobCacheService(mock(PermanentBlobCache.class), mock(TransientBlobCache.class));

	final Task task = new Task(
		jobInformation,
		taskInformation,
		new ExecutionAttemptID(),
		new AllocationID(),
		0,
		0,
		Collections.<ResultPartitionDeploymentDescriptor>emptyList(),
		Collections.<InputGateDeploymentDescriptor>emptyList(),
		0,
		new MemoryManager(32L * 1024L, 1),
		new IOManagerAsync(),
		shuffleEnvironment,
		new KvStateService(new KvStateRegistry(), null, null),
		mock(BroadcastVariableManager.class),
		new TaskEventDispatcher(),
		new TestTaskStateManager(),
		mock(TaskManagerActions.class),
		mock(InputSplitProvider.class),
		mock(CheckpointResponder.class),
		new TestGlobalAggregateManager(),
		blobService,
		new BlobLibraryCacheManager(
			blobService.getPermanentBlobService(),
			FlinkUserCodeClassLoaders.ResolveOrder.CHILD_FIRST,
			new String[0]),
		mock(FileCache.class),
		taskManagerRuntimeInfo,
		UnregisteredMetricGroups.createUnregisteredTaskMetricGroup(),
		new NoOpResultPartitionConsumableNotifier(),
		mock(PartitionProducerStateChecker.class),
		Executors.directExecutor());

	CompletableFuture<Void> taskRun = CompletableFuture.runAsync(
		() -> task.run(),
		TestingUtils.defaultExecutor());

	// wait until the stream task started running
	RUN_LATCH.await();

	// trigger a checkpoint
	task.triggerCheckpointBarrier(checkpointId, checkpointTimestamp, CheckpointOptions.forCheckpointWithDefaultLocation(), false);

	// wait until the task has completed execution
	taskRun.get();

	// check that no failure occurred
	if (task.getFailureCause() != null) {
		throw new Exception("Task failed", task.getFailureCause());
	}

	// check that we have entered the finished state
	assertEquals(ExecutionState.FINISHED, task.getExecutionState());
}
 

private Task createTask(Class<? extends AbstractInvokable> invokableClass) throws Exception {
	BlobCacheService blobService =
			new BlobCacheService(mock(PermanentBlobCache.class), mock(TransientBlobCache.class));

	LibraryCacheManager libCache = mock(LibraryCacheManager.class);
	when(libCache.getClassLoader(any(JobID.class))).thenReturn(ClassLoader.getSystemClassLoader());

	ResultPartitionConsumableNotifier consumableNotifier = new NoOpResultPartitionConsumableNotifier();
	PartitionProducerStateChecker partitionProducerStateChecker = mock(PartitionProducerStateChecker.class);
	Executor executor = mock(Executor.class);
	ShuffleEnvironment<?, ?> shuffleEnvironment = new NettyShuffleEnvironmentBuilder().build();

	TaskMetricGroup taskMetricGroup = UnregisteredMetricGroups.createUnregisteredTaskMetricGroup();

	JobInformation jobInformation = new JobInformation(
			new JobID(),
			"Job Name",
			new SerializedValue<>(new ExecutionConfig()),
			new Configuration(),
			Collections.emptyList(),
			Collections.emptyList());

	TaskInformation taskInformation = new TaskInformation(
			new JobVertexID(),
			"Test Task",
			1,
			1,
			invokableClass.getName(),
			new Configuration());

	return new Task(
			jobInformation,
			taskInformation,
			new ExecutionAttemptID(),
			new AllocationID(),
			0,
			0,
			Collections.<ResultPartitionDeploymentDescriptor>emptyList(),
			Collections.<InputGateDeploymentDescriptor>emptyList(),
			0,
			mock(MemoryManager.class),
			mock(IOManager.class),
			shuffleEnvironment,
			new KvStateService(new KvStateRegistry(), null, null),
			mock(BroadcastVariableManager.class),
			new TaskEventDispatcher(),
			new TestTaskStateManager(),
			mock(TaskManagerActions.class),
			mock(InputSplitProvider.class),
			mock(CheckpointResponder.class),
			new TestGlobalAggregateManager(),
			blobService,
			libCache,
			mock(FileCache.class),
			new TestingTaskManagerRuntimeInfo(),
			taskMetricGroup,
			consumableNotifier,
			partitionProducerStateChecker,
			executor);
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	return this.inputSplitProvider;
}
 

public static Task createTask(
		Class<? extends AbstractInvokable> invokable,
		StreamConfig taskConfig,
		Configuration taskManagerConfig,
		TestTaskStateManager taskStateManager,
		TaskManagerActions taskManagerActions) throws Exception {

	BlobCacheService blobService =
		new BlobCacheService(mock(PermanentBlobCache.class), mock(TransientBlobCache.class));

	LibraryCacheManager libCache = mock(LibraryCacheManager.class);
	when(libCache.getClassLoader(any(JobID.class))).thenReturn(StreamTaskTest.class.getClassLoader());

	ResultPartitionConsumableNotifier consumableNotifier = new NoOpResultPartitionConsumableNotifier();
	PartitionProducerStateChecker partitionProducerStateChecker = mock(PartitionProducerStateChecker.class);
	Executor executor = mock(Executor.class);

	ShuffleEnvironment<?, ?> shuffleEnvironment = new NettyShuffleEnvironmentBuilder().build();

	JobInformation jobInformation = new JobInformation(
		new JobID(),
		"Job Name",
		new SerializedValue<>(new ExecutionConfig()),
		new Configuration(),
		Collections.emptyList(),
		Collections.emptyList());

	TaskInformation taskInformation = new TaskInformation(
		new JobVertexID(),
		"Test Task",
		1,
		1,
		invokable.getName(),
		taskConfig.getConfiguration());

	return new Task(
		jobInformation,
		taskInformation,
		new ExecutionAttemptID(),
		new AllocationID(),
		0,
		0,
		Collections.<ResultPartitionDeploymentDescriptor>emptyList(),
		Collections.<InputGateDeploymentDescriptor>emptyList(),
		0,
		mock(MemoryManager.class),
		mock(IOManager.class),
		shuffleEnvironment,
		new KvStateService(new KvStateRegistry(), null, null),
		mock(BroadcastVariableManager.class),
		new TaskEventDispatcher(),
		taskStateManager,
		taskManagerActions,
		mock(InputSplitProvider.class),
		mock(CheckpointResponder.class),
		new TestGlobalAggregateManager(),
		blobService,
		libCache,
		mock(FileCache.class),
		new TestingTaskManagerRuntimeInfo(taskManagerConfig, new String[] {System.getProperty("java.io.tmpdir")}),
		UnregisteredMetricGroups.createUnregisteredTaskMetricGroup(),
		consumableNotifier,
		partitionProducerStateChecker,
		executor);
}
 

private static Task createTask(
	StreamOperator<?> op,
	StateBackend backend,
	CheckpointResponder checkpointResponder) throws IOException {

	Configuration taskConfig = new Configuration();
	StreamConfig cfg = new StreamConfig(taskConfig);
	cfg.setStreamOperator(op);
	cfg.setOperatorID(new OperatorID());
	cfg.setStateBackend(backend);

	ExecutionConfig executionConfig = new ExecutionConfig();

	JobInformation jobInformation = new JobInformation(
			new JobID(),
			"test job name",
			new SerializedValue<>(executionConfig),
			new Configuration(),
			Collections.emptyList(),
			Collections.emptyList());

	TaskInformation taskInformation = new TaskInformation(
			new JobVertexID(),
			"test task name",
			1,
			11,
			TestStreamTask.class.getName(),
			taskConfig);

	ShuffleEnvironment<?, ?> shuffleEnvironment = new NettyShuffleEnvironmentBuilder().build();

	BlobCacheService blobService =
		new BlobCacheService(mock(PermanentBlobCache.class), mock(TransientBlobCache.class));

	return new Task(
			jobInformation,
			taskInformation,
			new ExecutionAttemptID(),
			new AllocationID(),
			0,
			0,
			Collections.<ResultPartitionDeploymentDescriptor>emptyList(),
			Collections.<InputGateDeploymentDescriptor>emptyList(),
			0,
			mock(MemoryManager.class),
			mock(IOManager.class),
			shuffleEnvironment,
			new KvStateService(new KvStateRegistry(), null, null),
			mock(BroadcastVariableManager.class),
			new TaskEventDispatcher(),
			new TestTaskStateManager(),
			mock(TaskManagerActions.class),
			mock(InputSplitProvider.class),
			checkpointResponder,
			new TestGlobalAggregateManager(),
			blobService,
			new BlobLibraryCacheManager(
				blobService.getPermanentBlobService(),
				FlinkUserCodeClassLoaders.ResolveOrder.CHILD_FIRST,
				new String[0]),
			new FileCache(new String[] { EnvironmentInformation.getTemporaryFileDirectory() },
				blobService.getPermanentBlobService()),
			new TestingTaskManagerRuntimeInfo(),
			UnregisteredMetricGroups.createUnregisteredTaskMetricGroup(),
			new NoOpResultPartitionConsumableNotifier(),
			mock(PartitionProducerStateChecker.class),
			Executors.directExecutor());
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	throw new UnsupportedOperationException(ERROR_MSG);
}
 

/**
 * FLINK-6833
 *
 * <p>Tests that a finished stream task cannot be failed by an asynchronous checkpointing operation after
 * the stream task has stopped running.
 */
@Test
public void testConcurrentAsyncCheckpointCannotFailFinishedStreamTask() throws Exception {
	final Configuration taskConfiguration = new Configuration();
	final StreamConfig streamConfig = new StreamConfig(taskConfiguration);
	final NoOpStreamOperator<Long> noOpStreamOperator = new NoOpStreamOperator<>();

	final StateBackend blockingStateBackend = new BlockingStateBackend();

	streamConfig.setStreamOperator(noOpStreamOperator);
	streamConfig.setOperatorID(new OperatorID());
	streamConfig.setStateBackend(blockingStateBackend);

	final long checkpointId = 0L;
	final long checkpointTimestamp = 0L;

	final JobInformation jobInformation = new JobInformation(
		new JobID(),
		"Test Job",
		new SerializedValue<>(new ExecutionConfig()),
		new Configuration(),
		Collections.emptyList(),
		Collections.emptyList());

	final TaskInformation taskInformation = new TaskInformation(
		new JobVertexID(),
		"Test Task",
		1,
		1,
		BlockingStreamTask.class.getName(),
		taskConfiguration);

	final TaskManagerRuntimeInfo taskManagerRuntimeInfo = new TestingTaskManagerRuntimeInfo();

	final ShuffleEnvironment<?, ?> shuffleEnvironment = new NettyShuffleEnvironmentBuilder().build();

	final Task task = new Task(
		jobInformation,
		taskInformation,
		new ExecutionAttemptID(),
		new AllocationID(),
		0,
		0,
		Collections.<ResultPartitionDeploymentDescriptor>emptyList(),
		Collections.<InputGateDeploymentDescriptor>emptyList(),
		0,
		MemoryManagerBuilder.newBuilder().setMemorySize(32L * 1024L).build(),
		new IOManagerAsync(),
		shuffleEnvironment,
		new KvStateService(new KvStateRegistry(), null, null),
		mock(BroadcastVariableManager.class),
		new TaskEventDispatcher(),
		ExternalResourceInfoProvider.NO_EXTERNAL_RESOURCES,
		new TestTaskStateManager(),
		mock(TaskManagerActions.class),
		mock(InputSplitProvider.class),
		mock(CheckpointResponder.class),
		new NoOpTaskOperatorEventGateway(),
		new TestGlobalAggregateManager(),
		TestingClassLoaderLease.newBuilder().build(),
		mock(FileCache.class),
		taskManagerRuntimeInfo,
		UnregisteredMetricGroups.createUnregisteredTaskMetricGroup(),
		new NoOpResultPartitionConsumableNotifier(),
		mock(PartitionProducerStateChecker.class),
		Executors.directExecutor());

	CompletableFuture<Void> taskRun = CompletableFuture.runAsync(
		() -> task.run(),
		TestingUtils.defaultExecutor());

	// wait until the stream task started running
	RUN_LATCH.await();

	// trigger a checkpoint
	task.triggerCheckpointBarrier(checkpointId, checkpointTimestamp, CheckpointOptions.forCheckpointWithDefaultLocation(), false);

	// wait until the task has completed execution
	taskRun.get();

	// check that no failure occurred
	if (task.getFailureCause() != null) {
		throw new Exception("Task failed", task.getFailureCause());
	}

	// check that we have entered the finished state
	assertEquals(ExecutionState.FINISHED, task.getExecutionState());
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	return splitProvider;
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	return this.inputSplitProvider;
}
 

private Iterator<InputSplit> getInputSplits() {

		final InputSplitProvider provider = getEnvironment().getInputSplitProvider();

		return new Iterator<InputSplit>() {

			private InputSplit nextSplit;
			
			private boolean exhausted;

			@Override
			public boolean hasNext() {
				if (exhausted) {
					return false;
				}
				
				if (nextSplit != null) {
					return true;
				}

				final InputSplit split;
				try {
					split = provider.getNextInputSplit(getUserCodeClassLoader());
				} catch (InputSplitProviderException e) {
					throw new RuntimeException("Could not retrieve next input split.", e);
				}

				if (split != null) {
					this.nextSplit = split;
					return true;
				}
				else {
					exhausted = true;
					return false;
				}
			}

			@Override
			public InputSplit next() {
				if (this.nextSplit == null && !hasNext()) {
					throw new NoSuchElementException();
				}

				final InputSplit tmp = this.nextSplit;
				this.nextSplit = null;
				return tmp;
			}

			@Override
			public void remove() {
				throw new UnsupportedOperationException();
			}
		};
	}
 

private Task createTask(Class<? extends AbstractInvokable> invokableClass) throws Exception {
	final TestingClassLoaderLease classLoaderHandle = TestingClassLoaderLease.newBuilder()
		.setGetOrResolveClassLoaderFunction((permanentBlobKeys, urls) -> new TestUserCodeClassLoader())
		.build();

	ResultPartitionConsumableNotifier consumableNotifier = new NoOpResultPartitionConsumableNotifier();
	PartitionProducerStateChecker partitionProducerStateChecker = mock(PartitionProducerStateChecker.class);
	Executor executor = mock(Executor.class);
	TaskMetricGroup taskMetricGroup = UnregisteredMetricGroups.createUnregisteredTaskMetricGroup();

	JobInformation jobInformation = new JobInformation(
		new JobID(),
		"Job Name",
		new SerializedValue<>(new ExecutionConfig()),
		new Configuration(),
		Collections.emptyList(),
		Collections.emptyList());

	TaskInformation taskInformation = new TaskInformation(
		new JobVertexID(),
		"Test Task",
		1,
		1,
		invokableClass.getName(),
		new Configuration());

	return new Task(
		jobInformation,
		taskInformation,
		new ExecutionAttemptID(),
		new AllocationID(),
		0,
		0,
		Collections.<ResultPartitionDeploymentDescriptor>emptyList(),
		Collections.<InputGateDeploymentDescriptor>emptyList(),
		0,
		mock(MemoryManager.class),
		mock(IOManager.class),
		shuffleEnvironment,
		new KvStateService(new KvStateRegistry(), null, null),
		mock(BroadcastVariableManager.class),
		new TaskEventDispatcher(),
		ExternalResourceInfoProvider.NO_EXTERNAL_RESOURCES,
		new TestTaskStateManager(),
		mock(TaskManagerActions.class),
		mock(InputSplitProvider.class),
		mock(CheckpointResponder.class),
		new NoOpTaskOperatorEventGateway(),
		new TestGlobalAggregateManager(),
		classLoaderHandle,
		mock(FileCache.class),
		new TestingTaskManagerRuntimeInfo(),
		taskMetricGroup,
		consumableNotifier,
		partitionProducerStateChecker,
		executor);
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	return this.inputSplitProvider;
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	return null;
}
 

private Task createTask(Class<? extends AbstractInvokable> invokableClass) throws Exception {

		ResultPartitionConsumableNotifier consumableNotifier = new NoOpResultPartitionConsumableNotifier();
		PartitionProducerStateChecker partitionProducerStateChecker = mock(PartitionProducerStateChecker.class);
		Executor executor = mock(Executor.class);
		ShuffleEnvironment<?, ?> shuffleEnvironment = new NettyShuffleEnvironmentBuilder().build();

		TaskMetricGroup taskMetricGroup = UnregisteredMetricGroups.createUnregisteredTaskMetricGroup();

		JobInformation jobInformation = new JobInformation(
				new JobID(),
				"Job Name",
				new SerializedValue<>(new ExecutionConfig()),
				new Configuration(),
				Collections.emptyList(),
				Collections.emptyList());

		TaskInformation taskInformation = new TaskInformation(
				new JobVertexID(),
				"Test Task",
				1,
				1,
				invokableClass.getName(),
				new Configuration());

		return new Task(
				jobInformation,
				taskInformation,
				new ExecutionAttemptID(),
				new AllocationID(),
				0,
				0,
				Collections.<ResultPartitionDeploymentDescriptor>emptyList(),
				Collections.<InputGateDeploymentDescriptor>emptyList(),
				0,
				mock(MemoryManager.class),
				mock(IOManager.class),
				shuffleEnvironment,
				new KvStateService(new KvStateRegistry(), null, null),
				mock(BroadcastVariableManager.class),
				new TaskEventDispatcher(),
				ExternalResourceInfoProvider.NO_EXTERNAL_RESOURCES,
				new TestTaskStateManager(),
				mock(TaskManagerActions.class),
				mock(InputSplitProvider.class),
				mock(CheckpointResponder.class),
				new NoOpTaskOperatorEventGateway(),
				new TestGlobalAggregateManager(),
				TestingClassLoaderLease.newBuilder().build(),
				mock(FileCache.class),
				new TestingTaskManagerRuntimeInfo(),
				taskMetricGroup,
				consumableNotifier,
				partitionProducerStateChecker,
				executor);
	}
 

/**
 * FLINK-6833
 *
 * <p>Tests that a finished stream task cannot be failed by an asynchronous checkpointing operation after
 * the stream task has stopped running.
 */
@Test
public void testConcurrentAsyncCheckpointCannotFailFinishedStreamTask() throws Exception {
	final Configuration taskConfiguration = new Configuration();
	final StreamConfig streamConfig = new StreamConfig(taskConfiguration);
	final NoOpStreamOperator<Long> noOpStreamOperator = new NoOpStreamOperator<>();

	final StateBackend blockingStateBackend = new BlockingStateBackend();

	streamConfig.setStreamOperator(noOpStreamOperator);
	streamConfig.setOperatorID(new OperatorID());
	streamConfig.setStateBackend(blockingStateBackend);

	final long checkpointId = 0L;
	final long checkpointTimestamp = 0L;

	final JobInformation jobInformation = new JobInformation(
		new JobID(),
		"Test Job",
		new SerializedValue<>(new ExecutionConfig()),
		new Configuration(),
		Collections.emptyList(),
		Collections.emptyList());

	final TaskInformation taskInformation = new TaskInformation(
		new JobVertexID(),
		"Test Task",
		1,
		1,
		BlockingStreamTask.class.getName(),
		taskConfiguration);

	final TaskManagerRuntimeInfo taskManagerRuntimeInfo = new TestingTaskManagerRuntimeInfo();

	TaskEventDispatcher taskEventDispatcher = new TaskEventDispatcher();
	final NetworkEnvironment networkEnv = mock(NetworkEnvironment.class);
	when(networkEnv.createKvStateTaskRegistry(any(JobID.class), any(JobVertexID.class))).thenReturn(mock(TaskKvStateRegistry.class));
	when(networkEnv.getTaskEventDispatcher()).thenReturn(taskEventDispatcher);

	BlobCacheService blobService =
		new BlobCacheService(mock(PermanentBlobCache.class), mock(TransientBlobCache.class));

	final Task task = new Task(
		jobInformation,
		taskInformation,
		new ExecutionAttemptID(),
		new AllocationID(),
		0,
		0,
		Collections.<ResultPartitionDeploymentDescriptor>emptyList(),
		Collections.<InputGateDeploymentDescriptor>emptyList(),
		0,
		new MemoryManager(32L * 1024L, 1),
		new IOManagerAsync(),
		networkEnv,
		mock(BroadcastVariableManager.class),
		new TestTaskStateManager(),
		mock(TaskManagerActions.class),
		mock(InputSplitProvider.class),
		mock(CheckpointResponder.class),
		new TestGlobalAggregateManager(),
		blobService,
		new BlobLibraryCacheManager(
			blobService.getPermanentBlobService(),
			FlinkUserCodeClassLoaders.ResolveOrder.CHILD_FIRST,
			new String[0]),
		mock(FileCache.class),
		taskManagerRuntimeInfo,
		UnregisteredMetricGroups.createUnregisteredTaskMetricGroup(),
		new NoOpResultPartitionConsumableNotifier(),
		mock(PartitionProducerStateChecker.class),
		Executors.directExecutor());

	CompletableFuture<Void> taskRun = CompletableFuture.runAsync(
		() -> task.run(),
		TestingUtils.defaultExecutor());

	// wait until the stream task started running
	RUN_LATCH.await();

	// trigger a checkpoint
	task.triggerCheckpointBarrier(checkpointId, checkpointTimestamp, CheckpointOptions.forCheckpointWithDefaultLocation());

	// wait until the task has completed execution
	taskRun.get();

	// check that no failure occurred
	if (task.getFailureCause() != null) {
		throw new Exception("Task failed", task.getFailureCause());
	}

	// check that we have entered the finished state
	assertEquals(ExecutionState.FINISHED, task.getExecutionState());
}
 

private void createSequenceReader(Configuration config) {
	Preconditions.checkArgument(initialProgress == null, "sequence read mode could not support checkpoint");
	StreamingRuntimeContext runtimeContext = (StreamingRuntimeContext) getRuntimeContext();
	InputSplitProvider provider = runtimeContext.getInputSplitProvider();
	this.sequenceReader = new SequenceReader<>(this, provider, config);
}
 

public RuntimeEnvironment(
		JobID jobId,
		JobVertexID jobVertexId,
		ExecutionAttemptID executionId,
		ExecutionConfig executionConfig,
		TaskInfo taskInfo,
		Configuration jobConfiguration,
		Configuration taskConfiguration,
		ClassLoader userCodeClassLoader,
		MemoryManager memManager,
		IOManager ioManager,
		BroadcastVariableManager bcVarManager,
		TaskStateManager taskStateManager,
		GlobalAggregateManager aggregateManager,
		AccumulatorRegistry accumulatorRegistry,
		TaskKvStateRegistry kvStateRegistry,
		InputSplitProvider splitProvider,
		Map<String, Future<Path>> distCacheEntries,
		ResultPartitionWriter[] writers,
		InputGate[] inputGates,
		TaskEventDispatcher taskEventDispatcher,
		CheckpointResponder checkpointResponder,
		TaskManagerRuntimeInfo taskManagerInfo,
		TaskMetricGroup metrics,
		Task containingTask) {

	this.jobId = checkNotNull(jobId);
	this.jobVertexId = checkNotNull(jobVertexId);
	this.executionId = checkNotNull(executionId);
	this.taskInfo = checkNotNull(taskInfo);
	this.executionConfig = checkNotNull(executionConfig);
	this.jobConfiguration = checkNotNull(jobConfiguration);
	this.taskConfiguration = checkNotNull(taskConfiguration);
	this.userCodeClassLoader = checkNotNull(userCodeClassLoader);
	this.memManager = checkNotNull(memManager);
	this.ioManager = checkNotNull(ioManager);
	this.bcVarManager = checkNotNull(bcVarManager);
	this.taskStateManager = checkNotNull(taskStateManager);
	this.aggregateManager = checkNotNull(aggregateManager);
	this.accumulatorRegistry = checkNotNull(accumulatorRegistry);
	this.kvStateRegistry = checkNotNull(kvStateRegistry);
	this.splitProvider = checkNotNull(splitProvider);
	this.distCacheEntries = checkNotNull(distCacheEntries);
	this.writers = checkNotNull(writers);
	this.inputGates = checkNotNull(inputGates);
	this.taskEventDispatcher = checkNotNull(taskEventDispatcher);
	this.checkpointResponder = checkNotNull(checkpointResponder);
	this.taskManagerInfo = checkNotNull(taskManagerInfo);
	this.containingTask = containingTask;
	this.metrics = metrics;
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	return splitProvider;
}
 

private Iterator<InputSplit> getInputSplits() {

		final InputSplitProvider provider = getEnvironment().getInputSplitProvider();

		return new Iterator<InputSplit>() {

			private InputSplit nextSplit;
			
			private boolean exhausted;

			@Override
			public boolean hasNext() {
				if (exhausted) {
					return false;
				}
				
				if (nextSplit != null) {
					return true;
				}

				final InputSplit split;
				try {
					split = provider.getNextInputSplit(getUserCodeClassLoader());
				} catch (InputSplitProviderException e) {
					throw new RuntimeException("Could not retrieve next input split.", e);
				}

				if (split != null) {
					this.nextSplit = split;
					return true;
				}
				else {
					exhausted = true;
					return false;
				}
			}

			@Override
			public InputSplit next() {
				if (this.nextSplit == null && !hasNext()) {
					throw new NoSuchElementException();
				}

				final InputSplit tmp = this.nextSplit;
				this.nextSplit = null;
				return tmp;
			}

			@Override
			public void remove() {
				throw new UnsupportedOperationException();
			}
		};
	}
 

private Task createTask(Class<? extends AbstractInvokable> invokableClass) throws Exception {
	BlobCacheService blobService =
		new BlobCacheService(mock(PermanentBlobCache.class), mock(TransientBlobCache.class));

	LibraryCacheManager libCache = mock(LibraryCacheManager.class);
	when(libCache.getClassLoader(any(JobID.class))).thenReturn(new TestUserCodeClassLoader());

	ResultPartitionManager partitionManager = mock(ResultPartitionManager.class);
	ResultPartitionConsumableNotifier consumableNotifier = new NoOpResultPartitionConsumableNotifier();
	PartitionProducerStateChecker partitionProducerStateChecker = mock(PartitionProducerStateChecker.class);
	Executor executor = mock(Executor.class);
	TaskEventDispatcher taskEventDispatcher = mock(TaskEventDispatcher.class);
	NetworkEnvironment networkEnvironment = mock(NetworkEnvironment.class);
	when(networkEnvironment.getResultPartitionManager()).thenReturn(partitionManager);
	when(networkEnvironment.getDefaultIOMode()).thenReturn(IOManager.IOMode.SYNC);
	when(networkEnvironment.createKvStateTaskRegistry(any(JobID.class), any(JobVertexID.class)))
			.thenReturn(mock(TaskKvStateRegistry.class));
	when(networkEnvironment.getTaskEventDispatcher()).thenReturn(taskEventDispatcher);

	TaskMetricGroup taskMetricGroup = mock(TaskMetricGroup.class);
	when(taskMetricGroup.getIOMetricGroup()).thenReturn(mock(TaskIOMetricGroup.class));

	JobInformation jobInformation = new JobInformation(
		new JobID(),
		"Job Name",
		new SerializedValue<>(new ExecutionConfig()),
		new Configuration(),
		Collections.emptyList(),
		Collections.emptyList());

	TaskInformation taskInformation = new TaskInformation(
		new JobVertexID(),
		"Test Task",
		1,
		1,
		invokableClass.getName(),
		new Configuration());

	return new Task(
		jobInformation,
		taskInformation,
		new ExecutionAttemptID(),
		new AllocationID(),
		0,
		0,
		Collections.<ResultPartitionDeploymentDescriptor>emptyList(),
		Collections.<InputGateDeploymentDescriptor>emptyList(),
		0,
		mock(MemoryManager.class),
		mock(IOManager.class),
		networkEnvironment,
		mock(BroadcastVariableManager.class),
		new TestTaskStateManager(),
		mock(TaskManagerActions.class),
		mock(InputSplitProvider.class),
		mock(CheckpointResponder.class),
		new TestGlobalAggregateManager(),
		blobService,
		libCache,
		mock(FileCache.class),
		new TestingTaskManagerRuntimeInfo(),
		taskMetricGroup,
		consumableNotifier,
		partitionProducerStateChecker,
		executor);
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	return this.inputSplitProvider;
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	return null;
}
 

@Override
public InputSplitProvider getInputSplitProvider() {
	return this.inputSplitProvider;
}