org.apache.flink.streaming.api.functions.source.InputFormatSourceFunction Java Examples

The following examples show how to use org.apache.flink.streaming.api.functions.source.InputFormatSourceFunction. 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-CEPplus with Apache License 2.0

6 votes

/**
 * Transforms a {@code SourceTransformation}.
 */
private <T> Collection<Integer> transformSource(SourceTransformation<T> source) {
	String slotSharingGroup = determineSlotSharingGroup(source.getSlotSharingGroup(), Collections.emptyList());

	streamGraph.addSource(source.getId(),
			slotSharingGroup,
			source.getCoLocationGroupKey(),
			source.getOperator(),
			null,
			source.getOutputType(),
			"Source: " + source.getName());
	if (source.getOperator().getUserFunction() instanceof InputFormatSourceFunction) {
		InputFormatSourceFunction<T> fs = (InputFormatSourceFunction<T>) source.getOperator().getUserFunction();
		streamGraph.setInputFormat(source.getId(), fs.getFormat());
	}
	streamGraph.setParallelism(source.getId(), source.getParallelism());
	streamGraph.setMaxParallelism(source.getId(), source.getMaxParallelism());
	return Collections.singleton(source.getId());
}

Example #2

Source File: SimpleOperatorFactory.java From flink with Apache License 2.0

6 votes

/**
 * Create a SimpleOperatorFactory from existed StreamOperator.
 */
@SuppressWarnings("unchecked")
public static <OUT> SimpleOperatorFactory<OUT> of(StreamOperator<OUT> operator) {
	if (operator == null) {
		return null;
	} else if (operator instanceof StreamSource &&
			((StreamSource) operator).getUserFunction() instanceof InputFormatSourceFunction) {
		return new SimpleInputFormatOperatorFactory<OUT>((StreamSource) operator);
	} else if (operator instanceof StreamSink &&
		((StreamSink) operator).getUserFunction() instanceof OutputFormatSinkFunction) {
		return new SimpleOutputFormatOperatorFactory<>((StreamSink) operator);
	} else if (operator instanceof AbstractUdfStreamOperator) {
		return new SimpleUdfStreamOperatorFactory<OUT>((AbstractUdfStreamOperator) operator);
	} else {
		return new SimpleOperatorFactory<>(operator);
	}
}

Example #3

Source File: SimpleOperatorFactory.java From flink with Apache License 2.0

6 votes

/**
 * Create a SimpleOperatorFactory from existed StreamOperator.
 */
@SuppressWarnings("unchecked")
public static <OUT> SimpleOperatorFactory<OUT> of(StreamOperator<OUT> operator) {
	if (operator == null) {
		return null;
	} else if (operator instanceof StreamSource &&
			((StreamSource) operator).getUserFunction() instanceof InputFormatSourceFunction) {
		return new SimpleInputFormatOperatorFactory<OUT>((StreamSource) operator);
	} else if (operator instanceof StreamSink &&
		((StreamSink) operator).getUserFunction() instanceof OutputFormatSinkFunction) {
		return new SimpleOutputFormatOperatorFactory<>((StreamSink) operator);
	} else if (operator instanceof AbstractUdfStreamOperator) {
		return new SimpleUdfStreamOperatorFactory<OUT>((AbstractUdfStreamOperator) operator);
	} else {
		return new SimpleOperatorFactory<>(operator);
	}
}

Example #4

Source File: StreamExecutionEnvironment.java From Flink-CEPplus with Apache License 2.0

5 votes

private <OUT> DataStreamSource<OUT> createInput(InputFormat<OUT, ?> inputFormat,
												TypeInformation<OUT> typeInfo,
												String sourceName) {

	InputFormatSourceFunction<OUT> function = new InputFormatSourceFunction<>(inputFormat, typeInfo);
	return addSource(function, sourceName, typeInfo);
}

Example #5

Source File: StreamExecutionEnvironment.java From flink with Apache License 2.0

5 votes

private <OUT> DataStreamSource<OUT> createInput(InputFormat<OUT, ?> inputFormat,
												TypeInformation<OUT> typeInfo,
												String sourceName) {

	InputFormatSourceFunction<OUT> function = new InputFormatSourceFunction<>(inputFormat, typeInfo);
	return addSource(function, sourceName, typeInfo);
}

Example #6

Source File: FileSystemTableSource.java From flink with Apache License 2.0

5 votes

@Override
public DataStream<RowData> getDataStream(StreamExecutionEnvironment execEnv) {
	@SuppressWarnings("unchecked")
	TypeInformation<RowData> typeInfo =
			(TypeInformation<RowData>) TypeInfoDataTypeConverter.fromDataTypeToTypeInfo(getProducedDataType());
	// Avoid using ContinuousFileMonitoringFunction
	InputFormatSourceFunction<RowData> func = new InputFormatSourceFunction<>(getInputFormat(), typeInfo);
	DataStreamSource<RowData> source = execEnv.addSource(func, explainSource(), typeInfo);
	return source.name(explainSource());
}

Example #7

Source File: StreamExecutionEnvironment.java From flink with Apache License 2.0

5 votes

private <OUT> DataStreamSource<OUT> createInput(InputFormat<OUT, ?> inputFormat,
												TypeInformation<OUT> typeInfo,
												String sourceName) {

	InputFormatSourceFunction<OUT> function = new InputFormatSourceFunction<>(inputFormat, typeInfo);
	return addSource(function, sourceName, typeInfo);
}

Example #8

Source File: SimpleInputFormatOperatorFactory.java From flink with Apache License 2.0

4 votes

public SimpleInputFormatOperatorFactory(StreamSource<OUT, InputFormatSourceFunction<OUT>> operator) {
	super(operator);
	this.operator = operator;
}

Example #9

Source File: StreamingJobGraphGeneratorTest.java From flink with Apache License 2.0

4 votes

@Test
public void testInputOutputFormat() {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

	DataStream<Long> source = env.addSource(
		new InputFormatSourceFunction<>(
			new TypeSerializerInputFormat<>(TypeInformation.of(Long.class)),
			TypeInformation.of(Long.class)),
		TypeInformation.of(Long.class)).name("source");

	source.writeUsingOutputFormat(new DiscardingOutputFormat<>()).name("sink1");
	source.writeUsingOutputFormat(new DiscardingOutputFormat<>()).name("sink2");

	StreamGraph streamGraph = env.getStreamGraph();
	JobGraph jobGraph = StreamingJobGraphGenerator.createJobGraph(streamGraph);
	assertEquals(1, jobGraph.getNumberOfVertices());

	JobVertex jobVertex = jobGraph.getVertices().iterator().next();
	assertTrue(jobVertex instanceof InputOutputFormatVertex);

	InputOutputFormatContainer formatContainer = new InputOutputFormatContainer(
		new TaskConfig(jobVertex.getConfiguration()), Thread.currentThread().getContextClassLoader());
	Map<OperatorID, UserCodeWrapper<? extends InputFormat<?, ?>>> inputFormats = formatContainer.getInputFormats();
	Map<OperatorID, UserCodeWrapper<? extends OutputFormat<?>>> outputFormats = formatContainer.getOutputFormats();
	assertEquals(1, inputFormats.size());
	assertEquals(2, outputFormats.size());

	Map<String, OperatorID> nameToOperatorIds = new HashMap<>();
	StreamConfig headConfig = new StreamConfig(jobVertex.getConfiguration());
	nameToOperatorIds.put(headConfig.getOperatorName(), headConfig.getOperatorID());

	Map<Integer, StreamConfig> chainedConfigs = headConfig
		.getTransitiveChainedTaskConfigs(Thread.currentThread().getContextClassLoader());
	for (StreamConfig config : chainedConfigs.values()) {
		nameToOperatorIds.put(config.getOperatorName(), config.getOperatorID());
	}

	InputFormat<?, ?> sourceFormat = inputFormats.get(nameToOperatorIds.get("Source: source")).getUserCodeObject();
	assertTrue(sourceFormat instanceof TypeSerializerInputFormat);

	OutputFormat<?> sinkFormat1 = outputFormats.get(nameToOperatorIds.get("Sink: sink1")).getUserCodeObject();
	assertTrue(sinkFormat1 instanceof DiscardingOutputFormat);

	OutputFormat<?> sinkFormat2 = outputFormats.get(nameToOperatorIds.get("Sink: sink2")).getUserCodeObject();
	assertTrue(sinkFormat2 instanceof DiscardingOutputFormat);
}

Example #10

Source File: SimpleInputFormatOperatorFactory.java From flink with Apache License 2.0

4 votes

public SimpleInputFormatOperatorFactory(StreamSource<OUT, InputFormatSourceFunction<OUT>> operator) {
	super(operator);
	this.operator = operator;
}

Example #11

Source File: StreamingJobGraphGeneratorTest.java From flink with Apache License 2.0

4 votes

@Test
public void testInputOutputFormat() {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

	DataStream<Long> source = env.addSource(
		new InputFormatSourceFunction<>(
			new TypeSerializerInputFormat<>(TypeInformation.of(Long.class)),
			TypeInformation.of(Long.class)),
		TypeInformation.of(Long.class)).name("source");

	source.writeUsingOutputFormat(new DiscardingOutputFormat<>()).name("sink1");
	source.writeUsingOutputFormat(new DiscardingOutputFormat<>()).name("sink2");

	StreamGraph streamGraph = env.getStreamGraph();
	JobGraph jobGraph = StreamingJobGraphGenerator.createJobGraph(streamGraph);
	assertEquals(1, jobGraph.getNumberOfVertices());

	JobVertex jobVertex = jobGraph.getVertices().iterator().next();
	assertTrue(jobVertex instanceof InputOutputFormatVertex);

	InputOutputFormatContainer formatContainer = new InputOutputFormatContainer(
		new TaskConfig(jobVertex.getConfiguration()), Thread.currentThread().getContextClassLoader());
	Map<OperatorID, UserCodeWrapper<? extends InputFormat<?, ?>>> inputFormats = formatContainer.getInputFormats();
	Map<OperatorID, UserCodeWrapper<? extends OutputFormat<?>>> outputFormats = formatContainer.getOutputFormats();
	assertEquals(1, inputFormats.size());
	assertEquals(2, outputFormats.size());

	Map<String, OperatorID> nameToOperatorIds = new HashMap<>();
	StreamConfig headConfig = new StreamConfig(jobVertex.getConfiguration());
	nameToOperatorIds.put(headConfig.getOperatorName(), headConfig.getOperatorID());

	Map<Integer, StreamConfig> chainedConfigs = headConfig
		.getTransitiveChainedTaskConfigs(Thread.currentThread().getContextClassLoader());
	for (StreamConfig config : chainedConfigs.values()) {
		nameToOperatorIds.put(config.getOperatorName(), config.getOperatorID());
	}

	InputFormat<?, ?> sourceFormat = inputFormats.get(nameToOperatorIds.get("Source: source")).getUserCodeObject();
	assertTrue(sourceFormat instanceof TypeSerializerInputFormat);

	OutputFormat<?> sinkFormat1 = outputFormats.get(nameToOperatorIds.get("Sink: sink1")).getUserCodeObject();
	assertTrue(sinkFormat1 instanceof DiscardingOutputFormat);

	OutputFormat<?> sinkFormat2 = outputFormats.get(nameToOperatorIds.get("Sink: sink2")).getUserCodeObject();
	assertTrue(sinkFormat2 instanceof DiscardingOutputFormat);
}