コード例 #1
0
  @Override
  public void setup(
      StreamTask<?, ?> containingTask, StreamConfig config, Output<StreamRecord<OUT>> output) {
    this.container = containingTask;
    this.config = config;
    this.output = output;
    this.runtimeContext =
        new StreamingRuntimeContext(
            this, container.getEnvironment(), container.getAccumulatorMap());

    stateKeySelector1 = config.getStatePartitioner(0, getUserCodeClassloader());
    stateKeySelector2 = config.getStatePartitioner(1, getUserCodeClassloader());

    try {
      TypeSerializer<Object> keySerializer = config.getStateKeySerializer(getUserCodeClassloader());
      // if the keySerializer is null we still need to create the state backend
      // for the non-partitioned state features it provides, such as the state output streams
      String operatorIdentifier =
          getClass().getSimpleName()
              + "_"
              + config.getVertexID()
              + "_"
              + runtimeContext.getIndexOfThisSubtask();
      stateBackend = container.createStateBackend(operatorIdentifier, keySerializer);
    } catch (Exception e) {
      throw new RuntimeException("Could not initialize state backend. ", e);
    }
  }
コード例 #2
0
 /**
  * Waits fro the task to be running. If this does not happen within the timeout, then a
  * TimeoutException is thrown.
  *
  * @param timeout Timeout for the task to be running.
  * @throws Exception
  */
 public void waitForTaskRunning(long timeout) throws Exception {
   if (taskThread == null) {
     throw new IllegalStateException("Task thread was not started.");
   } else {
     if (taskThread.task instanceof StreamTask) {
       StreamTask<?, ?> streamTask = (StreamTask<?, ?>) taskThread.task;
       while (!streamTask.isRunning()) {
         Thread.sleep(100);
         if (!taskThread.isAlive()) {
           if (taskThread.getError() != null) {
             throw new Exception("Task Thread failed due to an error.", taskThread.getError());
           } else {
             throw new Exception("Task Thread unexpectedly shut down.");
           }
         }
       }
     } else {
       throw new IllegalStateException("Not a StreamTask");
     }
   }
 }
  private static StreamTask<?, ?> createMockTask() {
    Configuration configuration = new Configuration();
    configuration.setString(ConfigConstants.STATE_BACKEND, "jobmanager");

    StreamTask<?, ?> task = mock(StreamTask.class);
    when(task.getAccumulatorMap()).thenReturn(new HashMap<String, Accumulator<?, ?>>());
    when(task.getName()).thenReturn("Test task name");
    when(task.getExecutionConfig()).thenReturn(new ExecutionConfig());

    final TaskManagerRuntimeInfo mockTaskManagerRuntimeInfo = mock(TaskManagerRuntimeInfo.class);
    when(mockTaskManagerRuntimeInfo.getConfiguration()).thenReturn(configuration);

    final Environment env = mock(Environment.class);
    when(env.getTaskInfo()).thenReturn(new TaskInfo("Test task name", 1, 0, 1, 0));
    when(env.getUserClassLoader())
        .thenReturn(AggregatingAlignedProcessingTimeWindowOperatorTest.class.getClassLoader());
    when(env.getMetricGroup()).thenReturn(new UnregisteredTaskMetricsGroup());

    when(task.getEnvironment()).thenReturn(env);
    return task;
  }
コード例 #4
0
ファイル: StreamTask.java プロジェクト: naveenmadhire/flink
 @Override
 public void run() {
   synchronized (lock) {
     try {
       target.trigger(timestamp);
     } catch (Throwable t) {
       LOG.error("Caught exception while processing timer.", t);
       if (task.timerException == null) {
         task.timerException = new TimerException(t);
       }
     }
   }
 }
コード例 #5
0
ファイル: MockContext.java プロジェクト: darionyaphet/flink
  private static StreamTask<?, ?> createMockTaskWithTimer(
      final ScheduledExecutorService timerService, final Object lock) {
    StreamTask<?, ?> task = mock(StreamTask.class);
    when(task.getAccumulatorMap()).thenReturn(new HashMap<String, Accumulator<?, ?>>());
    when(task.getName()).thenReturn("Test task name");
    when(task.getExecutionConfig()).thenReturn(new ExecutionConfig());
    when(task.getEnvironment())
        .thenReturn(
            new MockEnvironment("MockTask", 3 * 1024 * 1024, new MockInputSplitProvider(), 1024));
    when(task.getCheckpointLock()).thenReturn(lock);

    doAnswer(
            new Answer<Void>() {
              @Override
              public Void answer(InvocationOnMock invocationOnMock) throws Throwable {
                final Long timestamp = (Long) invocationOnMock.getArguments()[0];
                final Triggerable target = (Triggerable) invocationOnMock.getArguments()[1];
                timerService.schedule(
                    new Callable<Object>() {
                      @Override
                      public Object call() throws Exception {
                        synchronized (lock) {
                          target.trigger(timestamp);
                        }
                        return null;
                      }
                    },
                    timestamp - System.currentTimeMillis(),
                    TimeUnit.MILLISECONDS);
                return null;
              }
            })
        .when(task)
        .registerTimer(anyLong(), any(Triggerable.class));

    // ugly Java generic hacks to get the generic state backend into the mock
    @SuppressWarnings("unchecked")
    OngoingStubbing<StateBackend<?>> stubbing =
        (OngoingStubbing<StateBackend<?>>) (OngoingStubbing<?>) when(task.getStateBackend());
    stubbing.thenReturn(MemoryStateBackend.defaultInstance());

    return task;
  }
  private static StreamTask<?, ?> createMockTask() {
    StreamTask<?, ?> task = mock(StreamTask.class);
    when(task.getAccumulatorMap()).thenReturn(new HashMap<String, Accumulator<?, ?>>());
    when(task.getName()).thenReturn("Test task name");
    when(task.getExecutionConfig()).thenReturn(new ExecutionConfig());

    Environment env = mock(Environment.class);
    when(env.getTaskInfo()).thenReturn(new TaskInfo("Test task name", 0, 1, 0));
    when(env.getUserClassLoader())
        .thenReturn(AggregatingAlignedProcessingTimeWindowOperatorTest.class.getClassLoader());

    when(task.getEnvironment()).thenReturn(env);

    // ugly java generic hacks to get the state backend into the mock
    @SuppressWarnings("unchecked")
    OngoingStubbing<StateBackend<?>> stubbing =
        (OngoingStubbing<StateBackend<?>>) (OngoingStubbing<?>) when(task.getStateBackend());
    stubbing.thenReturn(MemoryStateBackend.defaultInstance());

    return task;
  }
コード例 #7
0
 /**
  * Register a timer callback. At the specified time the {@link Triggerable} will be invoked. This
  * call is guaranteed to not happen concurrently with method calls on the operator.
  *
  * @param time The absolute time in milliseconds.
  * @param target The target to be triggered.
  */
 protected ScheduledFuture<?> registerTimer(long time, Triggerable target) {
   return container.registerTimer(time, target);
 }
コード例 #8
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 public ClassLoader getUserCodeClassloader() {
   return container.getUserCodeClassLoader();
 }
コード例 #9
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 /**
  * Gets the execution config defined on the execution environment of the job to which this
  * operator belongs.
  *
  * @return The job's execution config.
  */
 public ExecutionConfig getExecutionConfig() {
   return container.getExecutionConfig();
 }