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add simple stream node inspection for testing
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44 changes: 44 additions & 0 deletions
44
src/main/scala/io/epiphanous/flinkrunner/model/StreamNodeInfo.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| package io.epiphanous.flinkrunner.model | ||
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| import org.apache.flink.streaming.api.graph.StreamGraph | ||
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| import scala.collection.JavaConverters._ | ||
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| case class StreamNodeInfo( | ||
| id: Int, | ||
| name: String, | ||
| parallelism: Int, | ||
| inClasses: List[String], | ||
| outClass: Option[String]) { | ||
| val isSource: Boolean = inClasses.isEmpty | ||
| val isSink: Boolean = outClass.isEmpty | ||
| val isTransform: Boolean = !isSource && !isSink | ||
| val nodeKind: String = | ||
| if (isSource) "source" else if (isTransform) "transform" else "sink" | ||
| val simpleInClasses: List[String] = | ||
| inClasses.map(_.split("\\.").last) | ||
| val simpleOutClass: Option[String] = outClass.map(_.split("\\.").last) | ||
| } | ||
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| object StreamNodeInfo { | ||
| def from(sg: StreamGraph): Seq[StreamNodeInfo] = { | ||
| sg.getStreamNodes.asScala.map { sn => | ||
| val id = sn.getId | ||
| val name = sn.getOperatorName | ||
| val parallelism = sn.getParallelism | ||
| val inClasses = sn.getTypeSerializersIn.toList.map( | ||
| _.createInstance().getClass.getCanonicalName | ||
| ) | ||
| val outClass = | ||
| Option(sn.getTypeSerializerOut) | ||
| .map(_.createInstance().getClass.getCanonicalName) | ||
| StreamNodeInfo( | ||
| id = id, | ||
| name = name, | ||
| parallelism = parallelism, | ||
| inClasses = inClasses, | ||
| outClass = outClass | ||
| ) | ||
| }.toSeq | ||
| } | ||
| } |
42 changes: 42 additions & 0 deletions
42
src/main/scala/io/epiphanous/flinkrunner/model/source/EmptySourceConfig.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| package io.epiphanous.flinkrunner.model.source | ||
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| import io.epiphanous.flinkrunner.model._ | ||
| import org.apache.avro.generic.GenericRecord | ||
| import org.apache.flink.api.common.typeinfo.TypeInformation | ||
| import org.apache.flink.api.scala.createTypeInformation | ||
| import org.apache.flink.streaming.api.scala.{ | ||
| DataStream, | ||
| StreamExecutionEnvironment | ||
| } | ||
| import org.apache.flink.table.data.{GenericRowData, RowData} | ||
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| case class EmptySourceConfig[ADT <: FlinkEvent]( | ||
| name: String, | ||
| config: FlinkConfig) | ||
| extends SourceConfig[ADT] { | ||
| override def connector: FlinkConnectorName = FlinkConnectorName.Empty | ||
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| def _emptySource[E: TypeInformation]( | ||
| env: StreamExecutionEnvironment): DataStream[E] = { | ||
| val x = env.fromCollection(Seq.empty[E]) | ||
| x | ||
| } | ||
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| override def getSourceStream[E <: ADT: TypeInformation]( | ||
| env: StreamExecutionEnvironment): DataStream[E] = | ||
| _emptySource[E](env) | ||
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| override def getAvroSourceStream[ | ||
| E <: ADT with EmbeddedAvroRecord[A]: TypeInformation, | ||
| A <: GenericRecord: TypeInformation]( | ||
| env: StreamExecutionEnvironment)(implicit | ||
| fromKV: EmbeddedAvroRecordInfo[A] => E): DataStream[E] = | ||
| _emptySource[E](env) | ||
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| override def getRowSourceStream[ | ||
| E <: ADT with EmbeddedRowType: TypeInformation]( | ||
| env: StreamExecutionEnvironment)(implicit | ||
| fromRowData: RowData => E): DataStream[E] = | ||
| _emptySource[GenericRowData](env).map(fromRowData) | ||
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| } |
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