本文整理了Java中cz.seznam.euphoria.core.client.operator.FlatMap.named()方法的一些代码示例，展示了FlatMap.named()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。FlatMap.named()方法的具体详情如下：
包路径：cz.seznam.euphoria.core.client.operator.FlatMap
类名称：FlatMap
方法名：named

FlatMap.named介绍

[英]Starts building a named FlatMap operator.
[中]开始构建命名的FlatMap操作符。

代码示例

代码示例来源：origin: seznam/euphoria

DataSource<String> datasource = new SimpleHadoopTextFileSource(uri.toString());
Dataset<String> in = flow.createInput(datasource);
return FlatMap.named("PARSE-INPUT")
  .of(in)
  .using(new UnaryFunctor<String, Pair<Long, String>>() {

代码示例来源：origin: seznam/euphoria

/**
 * Collects Avro record as JSON string
 *
 * @param outSink
 * @param inSource
 * @throws Exception
 */
public static void runFlow(
  DataSink<String> outSink,
  DataSource<Pair<AvroKey<GenericData.Record>, NullWritable>> inSource)
  throws Exception {
 Flow flow = Flow.create("simple read avro");
 Dataset<Pair<AvroKey<GenericData.Record>, NullWritable>> input = flow.createInput(inSource);
 final Dataset<String> output =
   FlatMap.named("avro2csv").of(input).using(AvroSourceTest::apply).output();
 output.persist(outSink);
 Executor executor = new LocalExecutor();
 executor.submit(flow).get();
}

代码示例来源：origin: seznam/euphoria

return FlatMap.named("FORMAT-OUTPUT")
  .of(aggregated)
  .using(((Pair<String, Long> elem, Collector<String> context) -> {

代码示例来源：origin: seznam/euphoria

final Dataset<String> words = FlatMap.named("TOKENIZER")
    .of(lines)
    .using((String line, Collector<String> c) ->

代码示例来源：origin: seznam/euphoria

@Test
public void testBuild() {
 Flow flow = Flow.create("TEST");
 Dataset<String> dataset = Util.createMockDataset(flow, 1);
 Dataset<String> mapped = FlatMap.named("FlatMap1")
   .of(dataset)
   .using((String s, Collector<String> c) -> c.collect(s))
   .output();
 assertEquals(flow, mapped.getFlow());
 assertEquals(1, flow.size());
 FlatMap map = (FlatMap) flow.operators().iterator().next();
 assertEquals(flow, map.getFlow());
 assertEquals("FlatMap1", map.getName());
 assertNotNull(map.getFunctor());
 assertEquals(mapped, map.output());
 assertNull(map.getEventTimeExtractor());
}

代码示例来源：origin: seznam/euphoria

@Test
public void testBuild_WithCounters() {
 Flow flow = Flow.create("TEST");
 Dataset<String> dataset = Util.createMockDataset(flow, 1);
 Dataset<String> mapped = FlatMap.named("FlatMap1")
     .of(dataset)
     .using((String s, Collector<String> c) -> {
      c.getCounter("my-counter").increment();
      c.collect(s);
     })
     .output();
 assertEquals(flow, mapped.getFlow());
 assertEquals(1, flow.size());
 FlatMap map = (FlatMap) flow.operators().iterator().next();
 assertEquals(flow, map.getFlow());
 assertEquals("FlatMap1", map.getName());
 assertNotNull(map.getFunctor());
 assertEquals(mapped, map.output());
}

代码示例来源：origin: seznam/euphoria

@Test
public void testBuild_EventTimeExtractor() {
 Flow flow = Flow.create("TEST");
 Dataset<String> dataset = Util.createMockDataset(flow, 1);
 Dataset<BigDecimal> mapped = FlatMap.named("FlatMap2")
   .of(dataset)
   .using((String s, Collector<BigDecimal> c) -> c.collect(null))
   .eventTimeBy(Long::parseLong) // ~ consuming the original input elements
   .output();
 assertEquals(flow, mapped.getFlow());
 assertEquals(1, flow.size());
 FlatMap map = (FlatMap) flow.operators().iterator().next();
 assertEquals(flow, map.getFlow());
 assertEquals("FlatMap2", map.getName());
 assertNotNull(map.getFunctor());
 assertEquals(mapped, map.output());
 assertNotNull(map.getEventTimeExtractor());
}