kafka Repartitioned 源码

kafka Repartitioned 代码

文件路径：/streams/streams-scala/src/main/scala/org/apache/kafka/streams/scala/kstream/Repartitioned.scala

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.kafka.streams.scala.kstream

import org.apache.kafka.common.serialization.Serde
import org.apache.kafka.streams.kstream.{Repartitioned => RepartitionedJ}
import org.apache.kafka.streams.processor.StreamPartitioner

object Repartitioned {

  /**
   * Create a Repartitioned instance with provided keySerde and valueSerde.
   *
   * @tparam K         key type
   * @tparam V         value type
   * @param keySerde    Serde to use for serializing the key
   * @param valueSerde  Serde to use for serializing the value
   * @return A new [[Repartitioned]] instance configured with keySerde and valueSerde
   * @see KStream#repartition(Repartitioned)
   */
  def `with`[K, V](implicit keySerde: Serde[K], valueSerde: Serde[V]): RepartitionedJ[K, V] =
    RepartitionedJ.`with`(keySerde, valueSerde)

  /**
   * Create a Repartitioned instance with provided keySerde, valueSerde, and name used as part of the repartition topic.
   *
   * @tparam K         key type
   * @tparam V         value type
   * @param name   the name used as a processor named and part of the repartition topic name.
   * @param keySerde    Serde to use for serializing the key
   * @param valueSerde  Serde to use for serializing the value
   * @return A new [[Repartitioned]] instance configured with keySerde, valueSerde, and processor and repartition topic name
   * @see KStream#repartition(Repartitioned)
   */
  def `with`[K, V](name: String)(implicit keySerde: Serde[K], valueSerde: Serde[V]): RepartitionedJ[K, V] =
    RepartitionedJ.`as`(name).withKeySerde(keySerde).withValueSerde(valueSerde)

  /**
   * Create a Repartitioned instance with provided keySerde, valueSerde, and partitioner.
   *
   * @tparam K          key type
   * @tparam V          value type
   * @param partitioner the function used to determine how records are distributed among partitions of the topic,
   *                    if not specified and `keySerde` provides a
   *                    [[org.apache.kafka.streams.kstream.internals.WindowedSerializer]] for the key
   *                    [[org.apache.kafka.streams.kstream.internals.WindowedStreamPartitioner]] will be
   *                    used—otherwise [[org.apache.kafka.clients.producer.internals.DefaultPartitioner]]
   *                    will be used
   * @param keySerde    Serde to use for serializing the key
   * @param valueSerde  Serde to use for serializing the value
   * @return A new [[Repartitioned]] instance configured with keySerde, valueSerde, and partitioner
   * @see KStream#repartition(Repartitioned)
   */
  def `with`[K, V](
    partitioner: StreamPartitioner[K, V]
  )(implicit keySerde: Serde[K], valueSerde: Serde[V]): RepartitionedJ[K, V] =
    RepartitionedJ.`streamPartitioner`(partitioner).withKeySerde(keySerde).withValueSerde(valueSerde)

  /**
   * Create a Repartitioned instance with provided keySerde, valueSerde, and number of partitions for repartition topic.
   *
   * @tparam K          key type
   * @tparam V          value type
   * @param numberOfPartitions number of partitions used when creating repartition topic
   * @param keySerde    Serde to use for serializing the key
   * @param valueSerde  Serde to use for serializing the value
   * @return A new [[Repartitioned]] instance configured with keySerde, valueSerde, and number of partitions
   * @see KStream#repartition(Repartitioned)
   */
  def `with`[K, V](numberOfPartitions: Int)(implicit keySerde: Serde[K], valueSerde: Serde[V]): RepartitionedJ[K, V] =
    RepartitionedJ.`numberOfPartitions`(numberOfPartitions).withKeySerde(keySerde).withValueSerde(valueSerde)

}

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