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instances.scala
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instances.scala
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/*
* Copyright 2018-2022 OVO Energy Limited
*
* SPDX-License-Identifier: Apache-2.0
*/
package fs2.kafka
import cats.instances.int._
import cats.instances.long._
import cats.instances.string._
import cats.instances.tuple._
import cats.syntax.show._
import cats.{Order, Show}
import org.apache.kafka.clients.consumer.OffsetAndMetadata
import org.apache.kafka.clients.producer.RecordMetadata
import org.apache.kafka.common.TopicPartition
object instances {
implicit val fs2KafkaOffsetAndMetadataOrder: Order[OffsetAndMetadata] =
Order.by(oam => (oam.offset, oam.metadata))
implicit val fs2KafkaOffsetAndMetadataOrdering: Ordering[OffsetAndMetadata] =
Order[OffsetAndMetadata].toOrdering
implicit val fs2KafkaOffsetAndMetadataShow: Show[OffsetAndMetadata] =
Show.show { oam =>
if (oam.metadata.nonEmpty)
show"(${oam.offset}, ${oam.metadata})"
else oam.offset.show
}
implicit val fs2KafkaRecordMetadataShow: Show[RecordMetadata] =
Show.show(rm => show"${rm.topic}-${rm.partition}@${rm.offset}")
implicit val fs2KafkaTopicPartitionOrder: Order[TopicPartition] =
Order.by(tp => (tp.topic, tp.partition))
implicit val fs2KafkaTopicPartitionOrdering: Ordering[TopicPartition] =
Order[TopicPartition].toOrdering
implicit val fs2KafkaTopicPartitionShow: Show[TopicPartition] =
Show.show(tp => show"${tp.topic}-${tp.partition}")
}