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org.checkita.dqf.connections

DQStreamingConnection

trait DQStreamingConnection extends AnyRef

Trait to be mix in connections that can read streams.

Self Type
DQStreamingConnection with DQConnection
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AnyRef, Any
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KafkaConnection
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Type Members

  1. abstract type CheckpointType <: Checkpoint

Abstract Value Members

  1. abstract def initCheckpoint(sourceConfig: (DQStreamingConnection.this)#SourceType): (DQStreamingConnection.this)#CheckpointType

    Creates initial checkpoint for provided Kafka source configuration.

    Creates initial checkpoint for provided Kafka source configuration.

    sourceConfig

    Kafka source configuration

    returns

    Kafka checkpoint

  2. abstract def loadDataStream(sourceConfig: (DQStreamingConnection.this)#SourceType, checkpoint: (DQStreamingConnection.this)#CheckpointType)(implicit settings: AppSettings, spark: SparkSession, schemas: Map[String, SourceSchema]): DataFrame

    Loads stream into a dataframe given the stream configuration

    Loads stream into a dataframe given the stream configuration

    sourceConfig

    Stream configuration

    checkpoint

    Checkpoint for given stream configuration

    settings

    Implicit application settings object

    spark

    Implicit spark session object

    schemas

    Implicit Map of all explicitly defined schemas (schemaId -> SourceSchema)

    returns

    Spark Streaming DataFrame

  3. abstract def validateOrFixCheckpoint(checkpoint: (DQStreamingConnection.this)#CheckpointType, sourceConfig: (DQStreamingConnection.this)#SourceType): (DQStreamingConnection.this)#CheckpointType

    Validates checkpoint structure and makes updates in case if checkpoint structure needs to be changed.

    Validates checkpoint structure and makes updates in case if checkpoint structure needs to be changed.

    checkpoint

    Checkpoint to validate and fix (if needed).

    sourceConfig

    Source configuration

    returns

    Either original checkpoint if it is valid or a fixed checkpoint.

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