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SourceConfig.scala
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SourceConfig.scala
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package io.epiphanous.flinkrunner.model
import io.epiphanous.flinkrunner.model.FlinkConnectorName._
import org.apache.flink.streaming.api.TimeCharacteristic
import java.util.Properties
import scala.util.Try
sealed trait SourceConfig {
def connector: FlinkConnectorName
def name: String
def label: String = s"$connector/$name"
def timeCharacteristic: TimeCharacteristic
def watermarkStrategy: String
def properties: Properties
}
object SourceConfig {
def apply(name: String, config: FlinkConfig): SourceConfig = {
val p = s"sources.$name"
val timeCharacteristic =
Try(config.getString(s"$p.time.characteristic"))
.map(config.getTimeCharacteristic)
.getOrElse(config.timeCharacteristic)
val watermarkStrategy = Try(config.getString(s"$p.watermark.strategy"))
.map(config.getWatermarkStrategy)
.getOrElse(config.watermarkStrategy)
FlinkConnectorName.withNameInsensitiveOption(
config.getString(s"$p.connector")
) match {
case Some(connector) =>
connector match {
case Kafka =>
KafkaSourceConfig(
connector,
name,
config.getString(s"$p.topic"),
config.getBoolean(s"$p.isKeyed"),
timeCharacteristic,
watermarkStrategy,
config.getProperties(s"$p.config")
)
case Kinesis =>
KinesisSourceConfig(
connector,
name,
config.getString(s"$p.stream"),
timeCharacteristic,
watermarkStrategy,
config.getProperties(s"$p.config")
)
case File =>
FileSourceConfig(
connector,
name,
config.getString(s"$p.path"),
timeCharacteristic,
watermarkStrategy,
config.getProperties(s"$p.config")
)
case Socket =>
SocketSourceConfig(
connector,
name,
config.getString(s"$p.host"),
config.getInt(s"$p.port"),
timeCharacteristic,
watermarkStrategy,
config.getProperties(s"$p.config")
)
case Collection =>
CollectionSourceConfig(
connector,
name,
name,
timeCharacteristic,
watermarkStrategy,
config.getProperties(s"$p.config")
)
case other =>
throw new RuntimeException(
s"$other $name connector not valid source (job ${config.jobName}"
)
}
case None =>
throw new RuntimeException(
s"Invalid/missing source connector type for $name (job ${config.jobName}"
)
}
}
}
final case class KafkaSourceConfig(
connector: FlinkConnectorName = Kafka,
name: String,
topic: String,
isKeyed: Boolean,
timeCharacteristic: TimeCharacteristic,
watermarkStrategy: String,
properties: Properties)
extends SourceConfig
final case class KinesisSourceConfig(
connector: FlinkConnectorName = Kinesis,
name: String,
stream: String,
timeCharacteristic: TimeCharacteristic,
watermarkStrategy: String,
properties: Properties)
extends SourceConfig
final case class FileSourceConfig(
connector: FlinkConnectorName = File,
name: String,
path: String,
timeCharacteristic: TimeCharacteristic,
watermarkStrategy: String,
properties: Properties)
extends SourceConfig
final case class SocketSourceConfig(
connector: FlinkConnectorName = Socket,
name: String,
host: String,
port: Int,
timeCharacteristic: TimeCharacteristic,
watermarkStrategy: String,
properties: Properties)
extends SourceConfig
final case class CollectionSourceConfig(
connector: FlinkConnectorName = Collection,
name: String,
topic: String,
timeCharacteristic: TimeCharacteristic,
watermarkStrategy: String,
properties: Properties)
extends SourceConfig