private static JobGraph createJobGraphWithKeyedState(
int parallelism,
int maxParallelism,
int numberKeys,
int numberElements,
boolean terminateAfterEmission,
int checkpointingInterval) {
StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
env.setParallelism(parallelism);
env.getConfig().setMaxParallelism(maxParallelism);
env.enableCheckpointing(checkpointingInterval);
env.setRestartStrategy(RestartStrategies.noRestart());
DataStream<Integer> input =
env.addSource(new SubtaskIndexSource(numberKeys, numberElements, terminateAfterEmission))
.keyBy(
new KeySelector<Integer, Integer>() {
private static final long serialVersionUID = -7952298871120320940L;
@Override
public Integer getKey(Integer value) throws Exception {
return value;
}
});
SubtaskIndexFlatMapper.workCompletedLatch = new CountDownLatch(numberKeys);
DataStream<Tuple2<Integer, Integer>> result =
input.flatMap(new SubtaskIndexFlatMapper(numberElements));
result.addSink(new CollectionSink<Tuple2<Integer, Integer>>());
return env.getStreamGraph().getJobGraph();
}
@Override
protected void testProgram() throws Exception {
StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
DataStream<String> text = env.fromElements(WordCountData.TEXT);
DataStream<Tuple2<String, Integer>> counts =
text.flatMap(new CsvOutputFormatITCase.Tokenizer()).keyBy(0).sum(1);
counts.writeAsText(resultPath);
env.execute("WriteAsTextTest");
}
