the-algorithm/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/FeedbackHistoryQueryFeatureHydrator.scala
twitter-team ef4c5eb65e Twitter Recommendation Algorithm
Please note we have force-pushed a new initial commit in order to remove some publicly-available Twitter user information. Note that this process may be required in the future.
2023-03-31 17:36:31 -05:00

39 lines
1.6 KiB
Scala

package com.twitter.home_mixer.functional_component.feature_hydrator
import com.twitter.home_mixer.model.HomeFeatures.FeedbackHistoryFeature
import com.twitter.home_mixer.param.HomeGlobalParams.EnableFeedbackFatigueParam
import com.twitter.product_mixer.core.feature.Feature
import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
import com.twitter.product_mixer.core.model.common.Conditionally
import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
import com.twitter.product_mixer.core.pipeline.PipelineQuery
import com.twitter.stitch.Stitch
import com.twitter.timelinemixer.clients.feedback.FeedbackHistoryManhattanClient
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
case class FeedbackHistoryQueryFeatureHydrator @Inject() (
feedbackHistoryClient: FeedbackHistoryManhattanClient)
extends QueryFeatureHydrator[PipelineQuery]
with Conditionally[PipelineQuery] {
override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("FeedbackHistory")
override val features: Set[Feature[_, _]] = Set(FeedbackHistoryFeature)
override def onlyIf(query: PipelineQuery): Boolean =
query.params(EnableFeedbackFatigueParam)
override def hydrate(
query: PipelineQuery
): Stitch[FeatureMap] =
Stitch
.callFuture(feedbackHistoryClient.get(query.getRequiredUserId))
.map { feedbackHistory =>
FeatureMapBuilder().add(FeedbackHistoryFeature, feedbackHistory).build()
}
}