Packages

  • package root
    Definition Classes
    root
  • package com
    Definition Classes
    root
  • package adform
    Definition Classes
    com
  • package streamloader

    The entry point of the stream loader library is the StreamLoader class, which requires a KafkaSource and a Sink.

    The entry point of the stream loader library is the StreamLoader class, which requires a KafkaSource and a Sink. Once started it will subscribe to the provided topics and will start polling and sinking records. The sink has to be able to persist records and to look up committed offsets (technically this is optional, but without it there would be no way to provide any delivery guarantees). A large class of sinks are batch based, implemented as RecordBatchingSink. This sink accumulate batches of records using some RecordBatcher and once ready, stores them to some underlying RecordBatchStorage. A common type of batch is file based, i.e. a batcher might write records to a temporary file and once the file is full the sink commits the file to some underlying storage, such as a database or a distributed file system like HDFS.

    A sketch of the class hierarchy illustrating the main classes and interfaces can be seen below.



    For concrete storage implementations see the clickhouse, hadoop, s3 and vertica packages. They also contain more file builder implementations than just the CsvFileBuilder included in the core library.

    Definition Classes
    adform
  • package sink
    Definition Classes
    streamloader
  • package batch
    Definition Classes
    sink
  • object RecordBatchingSink
    Definition Classes
    batch
  • Builder

case class Builder[B <: RecordBatch](_recordBatcher: RecordBatcher[B], _batchStorage: RecordBatchStorage[B], _batchCommitQueueSize: Int, _partitionGrouping: (TopicPartition) => String, _retryPolicy: Policy) extends Sink.Builder with Product with Serializable

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  1. Builder
  2. Serializable
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  5. Builder
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Visibility
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  2. Protected

Instance Constructors

  1. new Builder(_recordBatcher: RecordBatcher[B], _batchStorage: RecordBatchStorage[B], _batchCommitQueueSize: Int, _partitionGrouping: (TopicPartition) => String, _retryPolicy: Policy)

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def batchCommitQueueSize(size: Int): Builder[B]

    Sets the max number of pending batches queued to be committed to storage.

    Sets the max number of pending batches queued to be committed to storage. Consumption stops when the queue fills up.

  6. def batchStorage(storage: RecordBatchStorage[B]): Builder[B]

    Sets the storage, e.g.

    Sets the storage, e.g. HDFS.

  7. def build(): RecordBatchingSink[B]
    Definition Classes
    Builder → Builder
  8. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  9. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  10. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  14. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  15. def partitionGrouping(grouping: (TopicPartition) => String): Builder[B]

    Sets the partition grouping, can be used to route records to different batches.

  16. def productElementNames: Iterator[String]
    Definition Classes
    Product
  17. def recordBatcher(batcher: RecordBatcher[B]): Builder[B]

    Sets the record batcher to use.

  18. def retryPolicy(retries: Int, initialDelay: Duration, backoffFactor: Int): Builder[B]

    Sets the retry policy for all retriable operations, i.e.

    Sets the retry policy for all retriable operations, i.e. recovery, batch commit and new batch creation.

  19. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  20. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  21. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  22. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated

    (Since version 9)

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from Sink.Builder

Inherited from AnyRef

Inherited from Any

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