Examples with TypeSerializerInputFormat org.apache.flink.api.java.io.TypeSerializerInputFormat used on opensource projects

Example 1 with TypeSerializerInputFormat

use of org.apache.flink.api.java.io.TypeSerializerInputFormat in project flink by apache.

the class StreamingJobGraphGeneratorTest method testInputOutputFormat.

@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);
}