How to use

getStreamTimeCharacteristic

method

in

org.apache.flink.streaming.api.environment.StreamExecutionEnvironment

/**
 * Windows this {@code KeyedStream} into tumbling time windows.
 *
 * <p>This is a shortcut for either {@code .window(TumblingEventTimeWindows.of(size))} or
 * {@code .window(TumblingProcessingTimeWindows.of(size))} depending on the time characteristic
 * set using
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * @param size The size of the window.
 */
public WindowedStream<T, KEY, TimeWindow> timeWindow(Time size) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return window(TumblingProcessingTimeWindows.of(size));
  } else {
    return window(TumblingEventTimeWindows.of(size));
  }
}

/**
 * Windows this {@code KeyedStream} into sliding time windows.
 *
 * <p>This is a shortcut for either {@code .window(SlidingEventTimeWindows.of(size, slide))} or
 * {@code .window(SlidingProcessingTimeWindows.of(size, slide))} depending on the time
 * characteristic set using
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * @param size The size of the window.
 */
public WindowedStream<T, KEY, TimeWindow> timeWindow(Time size, Time slide) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return window(SlidingProcessingTimeWindows.of(size, slide));
  } else {
    return window(SlidingEventTimeWindows.of(size, slide));
  }
}

/**
 * Windows this {@code DataStream} into tumbling time windows.
 *
 * <p>This is a shortcut for either {@code .window(TumblingEventTimeWindows.of(size))} or
 * {@code .window(TumblingProcessingTimeWindows.of(size))} depending on the time characteristic
 * set using
 *
 * <p>Note: This operation is inherently non-parallel since all elements have to pass through
 * the same operator instance.
 *
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * @param size The size of the window.
 */
public AllWindowedStream<T, TimeWindow> timeWindowAll(Time size) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return windowAll(TumblingProcessingTimeWindows.of(size));
  } else {
    return windowAll(TumblingEventTimeWindows.of(size));
  }
}

/**
 * Windows this {@code DataStream} into sliding time windows.
 *
 * <p>This is a shortcut for either {@code .window(SlidingEventTimeWindows.of(size, slide))} or
 * {@code .window(SlidingProcessingTimeWindows.of(size, slide))} depending on the time characteristic
 * set using
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * <p>Note: This operation is inherently non-parallel since all elements have to pass through
 * the same operator instance.
 *
 * @param size The size of the window.
 */
public AllWindowedStream<T, TimeWindow> timeWindowAll(Time size, Time slide) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return windowAll(SlidingProcessingTimeWindows.of(size, slide));
  } else {
    return windowAll(SlidingEventTimeWindows.of(size, slide));
  }
}

  /**
   * Specifies the time boundaries over which the join operation works, so that
   * <pre>leftElement.timestamp + lowerBound <= rightElement.timestamp <= leftElement.timestamp + upperBound</pre>
   * By default both the lower and the upper bound are inclusive. This can be configured
   * with {@link IntervalJoined#lowerBoundExclusive()} and
   * {@link IntervalJoined#upperBoundExclusive()}
   *
   * @param lowerBound The lower bound. Needs to be smaller than or equal to the upperBound
   * @param upperBound The upper bound. Needs to be bigger than or equal to the lowerBound
   */
  @PublicEvolving
  public IntervalJoined<T1, T2, KEY> between(Time lowerBound, Time upperBound) {
    TimeCharacteristic timeCharacteristic =
      streamOne.getExecutionEnvironment().getStreamTimeCharacteristic();
    if (timeCharacteristic != TimeCharacteristic.EventTime) {
      throw new UnsupportedTimeCharacteristicException("Time-bounded stream joins are only supported in event time");
    }
    checkNotNull(lowerBound, "A lower bound needs to be provided for a time-bounded join");
    checkNotNull(upperBound, "An upper bound needs to be provided for a time-bounded join");
    return new IntervalJoined<>(
      streamOne,
      streamTwo,
      lowerBound.toMilliseconds(),
      upperBound.toMilliseconds(),
      true,
      true
    );
  }
}

final boolean isProcessingTime = inputStream.getExecutionEnvironment().getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime;

config.setChainedOutputs(chainableOutputs);
config.setTimeCharacteristic(streamGraph.getEnvironment().getStreamTimeCharacteristic());

/**
 * Windows this {@code KeyedStream} into tumbling time windows.
 *
 * <p>This is a shortcut for either {@code .window(TumblingEventTimeWindows.of(size))} or
 * {@code .window(TumblingProcessingTimeWindows.of(size))} depending on the time characteristic
 * set using
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * @param size The size of the window.
 */
public WindowedStream<T, KEY, TimeWindow> timeWindow(Time size) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return window(TumblingProcessingTimeWindows.of(size));
  } else {
    return window(TumblingEventTimeWindows.of(size));
  }
}

/**
 * Windows this {@code KeyedStream} into sliding time windows.
 *
 * <p>This is a shortcut for either {@code .window(SlidingEventTimeWindows.of(size, slide))} or
 * {@code .window(SlidingProcessingTimeWindows.of(size, slide))} depending on the time
 * characteristic set using
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * @param size The size of the window.
 */
public WindowedStream<T, KEY, TimeWindow> timeWindow(Time size, Time slide) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return window(SlidingProcessingTimeWindows.of(size, slide));
  } else {
    return window(SlidingEventTimeWindows.of(size, slide));
  }
}

/**
 * Windows this {@code KeyedStream} into tumbling time windows.
 *
 * <p>This is a shortcut for either {@code .window(TumblingEventTimeWindows.of(size))} or
 * {@code .window(TumblingProcessingTimeWindows.of(size))} depending on the time characteristic
 * set using
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * @param size The size of the window.
 */
public WindowedStream<T, KEY, TimeWindow> timeWindow(Time size) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return window(TumblingProcessingTimeWindows.of(size));
  } else {
    return window(TumblingEventTimeWindows.of(size));
  }
}

/**
 * Windows this {@code KeyedStream} into tumbling time windows.
 *
 * <p>This is a shortcut for either {@code .window(TumblingEventTimeWindows.of(size))} or
 * {@code .window(TumblingProcessingTimeWindows.of(size))} depending on the time characteristic
 * set using
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * @param size The size of the window.
 */
public WindowedStream<T, KEY, TimeWindow> timeWindow(Time size) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return window(TumblingProcessingTimeWindows.of(size));
  } else {
    return window(TumblingEventTimeWindows.of(size));
  }
}

/**
 * Windows this {@code KeyedStream} into sliding time windows.
 *
 * <p>This is a shortcut for either {@code .window(SlidingEventTimeWindows.of(size, slide))} or
 * {@code .window(SlidingProcessingTimeWindows.of(size, slide))} depending on the time
 * characteristic set using
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * @param size The size of the window.
 */
public WindowedStream<T, KEY, TimeWindow> timeWindow(Time size, Time slide) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return window(SlidingProcessingTimeWindows.of(size, slide));
  } else {
    return window(SlidingEventTimeWindows.of(size, slide));
  }
}

/**
 * Windows this {@code KeyedStream} into sliding time windows.
 *
 * <p>This is a shortcut for either {@code .window(SlidingEventTimeWindows.of(size, slide))} or
 * {@code .window(SlidingProcessingTimeWindows.of(size, slide))} depending on the time
 * characteristic set using
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * @param size The size of the window.
 */
public WindowedStream<T, KEY, TimeWindow> timeWindow(Time size, Time slide) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return window(SlidingProcessingTimeWindows.of(size, slide));
  } else {
    return window(SlidingEventTimeWindows.of(size, slide));
  }
}

/**
 * Windows this {@code DataStream} into tumbling time windows.
 *
 * <p>This is a shortcut for either {@code .window(TumblingEventTimeWindows.of(size))} or
 * {@code .window(TumblingProcessingTimeWindows.of(size))} depending on the time characteristic
 * set using
 *
 * <p>Note: This operation is inherently non-parallel since all elements have to pass through
 * the same operator instance.
 *
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * @param size The size of the window.
 */
public AllWindowedStream<T, TimeWindow> timeWindowAll(Time size) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return windowAll(TumblingProcessingTimeWindows.of(size));
  } else {
    return windowAll(TumblingEventTimeWindows.of(size));
  }
}

/**
 * Windows this {@code DataStream} into sliding time windows.
 *
 * <p>This is a shortcut for either {@code .window(SlidingEventTimeWindows.of(size, slide))} or
 * {@code .window(SlidingProcessingTimeWindows.of(size, slide))} depending on the time characteristic
 * set using
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * <p>Note: This operation is inherently non-parallel since all elements have to pass through
 * the same operator instance.
 *
 * @param size The size of the window.
 */
public AllWindowedStream<T, TimeWindow> timeWindowAll(Time size, Time slide) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return windowAll(SlidingProcessingTimeWindows.of(size, slide));
  } else {
    return windowAll(SlidingEventTimeWindows.of(size, slide));
  }
}

/**
 * Windows this {@code DataStream} into sliding time windows.
 *
 * <p>This is a shortcut for either {@code .window(SlidingEventTimeWindows.of(size, slide))} or
 * {@code .window(SlidingProcessingTimeWindows.of(size, slide))} depending on the time characteristic
 * set using
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * <p>Note: This operation is inherently non-parallel since all elements have to pass through
 * the same operator instance.
 *
 * @param size The size of the window.
 */
public AllWindowedStream<T, TimeWindow> timeWindowAll(Time size, Time slide) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return windowAll(SlidingProcessingTimeWindows.of(size, slide));
  } else {
    return windowAll(SlidingEventTimeWindows.of(size, slide));
  }
}

/**
 * Windows this {@code DataStream} into tumbling time windows.
 *
 * <p>This is a shortcut for either {@code .window(TumblingEventTimeWindows.of(size))} or
 * {@code .window(TumblingProcessingTimeWindows.of(size))} depending on the time characteristic
 * set using
 *
 * <p>Note: This operation can be inherently non-parallel since all elements have to pass through
 * the same operator instance. (Only for special cases, such as aligned time windows is
 * it possible to perform this operation in parallel).
 *
 * {@link org.apache.flink.streaming.api.environment.StreamExecutionEnvironment#setStreamTimeCharacteristic(org.apache.flink.streaming.api.TimeCharacteristic)}
 *
 * @param size The size of the window.
 */
public AllWindowedStream<T, TimeWindow> timeWindowAll(Time size) {
  if (environment.getStreamTimeCharacteristic() == TimeCharacteristic.ProcessingTime) {
    return windowAll(TumblingProcessingTimeWindows.of(size));
  } else {
    return windowAll(TumblingEventTimeWindows.of(size));
  }
}

public ExecutionSiddhiStream(DataStream<Tuple2<StreamRoute, Object>> dataStream, String executionPlan, SiddhiCEP environment) {
  this.dataStream = dataStream;
  siddhiContext = new SiddhiOperatorContext();
  if (executionPlan != null) {
    executionPlanId = siddhiContext.addExecutionPlan(executionPlan);
  }
  siddhiContext.setInputStreamSchemas(environment.getDataStreamSchemas());
  siddhiContext.setTimeCharacteristic(environment.getExecutionEnvironment().getStreamTimeCharacteristic());
  siddhiContext.setExtensions(environment.getExtensions());
  siddhiContext.setExecutionConfig(environment.getExecutionEnvironment().getConfig());
}

private <T> DataStream<T> returnsInternal(String outStreamId, TypeInformation<T> typeInformation) {
  SiddhiOperatorContext siddhiContext = new SiddhiOperatorContext();
  siddhiContext.setExecutionPlan(executionPlan);
  siddhiContext.setInputStreamSchemas(environment.getDataStreamSchemas());
  siddhiContext.setTimeCharacteristic(environment.getExecutionEnvironment().getStreamTimeCharacteristic());
  siddhiContext.setOutputStreamId(outStreamId);
  siddhiContext.setOutputStreamType(typeInformation);
  siddhiContext.setExtensions(environment.getExtensions());
  siddhiContext.setExecutionConfig(environment.getExecutionEnvironment().getConfig());
  return returnsInternal(siddhiContext);
}

/**
 * @param outStreamId The <code>streamId</code> to return as data stream.
 * @param <T>         Type information should match with stream definition.
 *                    During execution phase, it will automatically build type information based on stream definition.
 * @return Return output stream as Tuple
 * @see SiddhiTypeFactory
 */
public <T extends Tuple> DataStream<T> returns(String outStreamId) {
  SiddhiOperatorContext siddhiContext = new SiddhiOperatorContext();
  siddhiContext.setExecutionPlan(executionPlan);
  siddhiContext.setInputStreamSchemas(environment.getDataStreamSchemas());
  siddhiContext.setTimeCharacteristic(environment.getExecutionEnvironment().getStreamTimeCharacteristic());
  siddhiContext.setOutputStreamId(outStreamId);
  siddhiContext.setExtensions(environment.getExtensions());
  siddhiContext.setExecutionConfig(environment.getExecutionEnvironment().getConfig());
  TypeInformation<T> typeInformation =
    SiddhiTypeFactory.getTupleTypeInformation(siddhiContext.getFinalExecutionPlan(), outStreamId);
  siddhiContext.setOutputStreamType(typeInformation);
  return returnsInternal(siddhiContext);
}