the-algorithm/product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/side_effect/ParamGatedPipelineResultSideEffect.scala
twitter-team ef4c5eb65e Twitter Recommendation Algorithm
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2023-03-31 17:36:31 -05:00

77 lines
3.3 KiB
Scala

package com.twitter.product_mixer.component_library.side_effect
import com.twitter.product_mixer.component_library.side_effect.ParamGatedPipelineResultSideEffect.IdentifierPrefix
import com.twitter.product_mixer.core.functional_component.common.alert.Alert
import com.twitter.product_mixer.core.functional_component.side_effect.ExecuteSynchronously
import com.twitter.product_mixer.core.functional_component.side_effect.FailOpen
import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
import com.twitter.product_mixer.core.model.common.Conditionally
import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
import com.twitter.product_mixer.core.model.marshalling.HasMarshalling
import com.twitter.product_mixer.core.pipeline.PipelineQuery
import com.twitter.stitch.Stitch
import com.twitter.timelines.configapi.Param
/**
* A [[PipelineResultSideEffect]] with [[Conditionally]] based on a [[Param]]
*
* @param enabledParam the param to turn this filter on and off
* @param sideEffect the underlying side effect to run when `enabledParam` is true
* @tparam Query The domain model for the query or request
*/
sealed case class ParamGatedPipelineResultSideEffect[
-Query <: PipelineQuery,
ResultType <: HasMarshalling
] private (
enabledParam: Param[Boolean],
sideEffect: PipelineResultSideEffect[Query, ResultType])
extends PipelineResultSideEffect[Query, ResultType]
with PipelineResultSideEffect.Conditionally[Query, ResultType] {
override val identifier: SideEffectIdentifier = SideEffectIdentifier(
IdentifierPrefix + sideEffect.identifier.name)
override val alerts: Seq[Alert] = sideEffect.alerts
override def onlyIf(
query: Query,
selectedCandidates: Seq[CandidateWithDetails],
remainingCandidates: Seq[CandidateWithDetails],
droppedCandidates: Seq[CandidateWithDetails],
response: ResultType
): Boolean =
Conditionally.and(
PipelineResultSideEffect
.Inputs(query, selectedCandidates, remainingCandidates, droppedCandidates, response),
sideEffect,
query.params(enabledParam))
override def apply(inputs: PipelineResultSideEffect.Inputs[Query, ResultType]): Stitch[Unit] =
sideEffect.apply(inputs)
}
object ParamGatedPipelineResultSideEffect {
val IdentifierPrefix = "ParamGated"
/**
* A [[PipelineResultSideEffect]] with [[Conditionally]] based on a [[Param]]
*
* @param enabledParam the param to turn this filter on and off
* @param sideEffect the underlying side effect to run when `enabledParam` is true
* @tparam Query The domain model for the query or request
*/
def apply[Query <: PipelineQuery, ResultType <: HasMarshalling](
enabledParam: Param[Boolean],
sideEffect: PipelineResultSideEffect[Query, ResultType]
): ParamGatedPipelineResultSideEffect[Query, ResultType] = {
sideEffect match {
case _: FailOpen =>
new ParamGatedPipelineResultSideEffect(enabledParam, sideEffect)
with ExecuteSynchronously
with FailOpen
case _: ExecuteSynchronously =>
new ParamGatedPipelineResultSideEffect(enabledParam, sideEffect) with ExecuteSynchronously
case _ =>
new ParamGatedPipelineResultSideEffect(enabledParam, sideEffect)
}
}
}