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Suppression Blog Figure 3
events
.groupByKey()
.windowedBy(
TimeWindows.of(Duration.ofMinutes(2).withGrace(Duration.ofMinutes(2))
)
.count(Materialized.as("count-metric"))
.suppress(Suppressed.untilWindowClose(BufferConfig.unbounded()))
.filter( _ < 4 )
.toStream()
.foreach( /* Send that email! */)
// graph servelet queries "count-metric"
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