Java Code Examples for org.apache.flink.api.dag.Transformation#getNewNodeId()

The following examples show how to use org.apache.flink.api.dag.Transformation#getNewNodeId() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: StreamGraphGenerator.java    From flink with Apache License 2.0 6 votes vote down vote up 
/**
 * Transforms a {@code SelectTransformation}.
 *
 * <p>For this we create a virtual node in the {@code StreamGraph} holds the selected names.
 *
 * @see org.apache.flink.streaming.api.graph.StreamGraphGenerator
 */
private <T> Collection<Integer> transformSelect(SelectTransformation<T> select) {
	Transformation<T> input = select.getInput();
	Collection<Integer> resultIds = transform(input);

	// the recursive transform might have already transformed this
	if (alreadyTransformed.containsKey(select)) {
		return alreadyTransformed.get(select);
	}

	List<Integer> virtualResultIds = new ArrayList<>();

	for (int inputId : resultIds) {
		int virtualId = Transformation.getNewNodeId();
		streamGraph.addVirtualSelectNode(inputId, virtualId, select.getSelectedNames());
		virtualResultIds.add(virtualId);
	}
	return virtualResultIds;
}
Example 2
Source File: StreamGraphGenerator.java    From flink with Apache License 2.0 6 votes vote down vote up 
/**
 * Transforms a {@code SideOutputTransformation}.
 *
 * <p>For this we create a virtual node in the {@code StreamGraph} that holds the side-output
 * {@link org.apache.flink.util.OutputTag}.
 *
 * @see org.apache.flink.streaming.api.graph.StreamGraphGenerator
 */
private <T> Collection<Integer> transformSideOutput(SideOutputTransformation<T> sideOutput) {
	Transformation<?> input = sideOutput.getInput();
	Collection<Integer> resultIds = transform(input);

	// the recursive transform might have already transformed this
	if (alreadyTransformed.containsKey(sideOutput)) {
		return alreadyTransformed.get(sideOutput);
	}

	List<Integer> virtualResultIds = new ArrayList<>();

	for (int inputId : resultIds) {
		int virtualId = Transformation.getNewNodeId();
		streamGraph.addVirtualSideOutputNode(inputId, virtualId, sideOutput.getOutputTag());
		virtualResultIds.add(virtualId);
	}
	return virtualResultIds;
}
Example 3
Source File: StreamGraphGenerator.java    From flink with Apache License 2.0 6 votes vote down vote up 
/**
 * Transforms a {@code SelectTransformation}.
 *
 * <p>For this we create a virtual node in the {@code StreamGraph} holds the selected names.
 *
 * @see org.apache.flink.streaming.api.graph.StreamGraphGenerator
 */
private <T> Collection<Integer> transformSelect(SelectTransformation<T> select) {
	Transformation<T> input = select.getInput();
	Collection<Integer> resultIds = transform(input);

	// the recursive transform might have already transformed this
	if (alreadyTransformed.containsKey(select)) {
		return alreadyTransformed.get(select);
	}

	List<Integer> virtualResultIds = new ArrayList<>();

	for (int inputId : resultIds) {
		int virtualId = Transformation.getNewNodeId();
		streamGraph.addVirtualSelectNode(inputId, virtualId, select.getSelectedNames());
		virtualResultIds.add(virtualId);
	}
	return virtualResultIds;
}
Example 4
Source File: StreamGraphGenerator.java    From flink with Apache License 2.0 6 votes vote down vote up 
/**
 * Transforms a {@code SideOutputTransformation}.
 *
 * <p>For this we create a virtual node in the {@code StreamGraph} that holds the side-output
 * {@link org.apache.flink.util.OutputTag}.
 *
 * @see org.apache.flink.streaming.api.graph.StreamGraphGenerator
 */
private <T> Collection<Integer> transformSideOutput(SideOutputTransformation<T> sideOutput) {
	Transformation<?> input = sideOutput.getInput();
	Collection<Integer> resultIds = transform(input);

	// the recursive transform might have already transformed this
	if (alreadyTransformed.containsKey(sideOutput)) {
		return alreadyTransformed.get(sideOutput);
	}

	List<Integer> virtualResultIds = new ArrayList<>();

	for (int inputId : resultIds) {
		int virtualId = Transformation.getNewNodeId();
		streamGraph.addVirtualSideOutputNode(inputId, virtualId, sideOutput.getOutputTag());
		virtualResultIds.add(virtualId);
	}
	return virtualResultIds;
}
Example 5
Source File: StreamGraphGenerator.java    From flink with Apache License 2.0 5 votes vote down vote up 
/**
 * Transforms a {@code PartitionTransformation}.
 *
 * <p>For this we create a virtual node in the {@code StreamGraph} that holds the partition
 * property. @see StreamGraphGenerator
 */
private <T> Collection<Integer> transformPartition(PartitionTransformation<T> partition) {
	Transformation<T> input = partition.getInput();
	List<Integer> resultIds = new ArrayList<>();

	Collection<Integer> transformedIds = transform(input);
	for (Integer transformedId: transformedIds) {
		int virtualId = Transformation.getNewNodeId();
		streamGraph.addVirtualPartitionNode(
				transformedId, virtualId, partition.getPartitioner(), partition.getShuffleMode());
		resultIds.add(virtualId);
	}

	return resultIds;
}
Example 6
Source File: StreamGraphGenerator.java    From flink with Apache License 2.0 5 votes vote down vote up 
/**
 * Transforms a {@code PartitionTransformation}.
 *
 * <p>For this we create a virtual node in the {@code StreamGraph} that holds the partition
 * property. @see StreamGraphGenerator
 */
private <T> Collection<Integer> transformPartition(PartitionTransformation<T> partition) {
	Transformation<T> input = partition.getInput();
	List<Integer> resultIds = new ArrayList<>();

	Collection<Integer> transformedIds = transform(input);
	for (Integer transformedId: transformedIds) {
		int virtualId = Transformation.getNewNodeId();
		streamGraph.addVirtualPartitionNode(
				transformedId, virtualId, partition.getPartitioner(), partition.getShuffleMode());
		resultIds.add(virtualId);
	}

	return resultIds;
}