57 lines
2.3 KiB
Scala
57 lines
2.3 KiB
Scala
package com.twitter.home_mixer.functional_component.feature_hydrator
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import com.twitter.home_mixer.model.HomeFeatures.AncestorsFeature
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import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
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import com.twitter.product_mixer.core.feature.Feature
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import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
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import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
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import com.twitter.product_mixer.core.functional_component.feature_hydrator.CandidateFeatureHydrator
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import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
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import com.twitter.product_mixer.core.pipeline.PipelineQuery
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import com.twitter.stitch.Stitch
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import com.twitter.tweetconvosvc.tweet_ancestor.{thriftscala => ta}
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import com.twitter.tweetconvosvc.{thriftscala => tcs}
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import javax.inject.Inject
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import javax.inject.Singleton
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@Singleton
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class AncestorFeatureHydrator @Inject() (
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conversationServiceClient: tcs.ConversationService.MethodPerEndpoint)
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extends CandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
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override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("Ancestor")
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override val features: Set[Feature[_, _]] = Set(AncestorsFeature)
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override def apply(
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query: PipelineQuery,
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candidate: TweetCandidate,
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existingFeatures: FeatureMap
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): Stitch[FeatureMap] = {
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val ancestorsRequest = tcs.GetAncestorsRequest(Seq(candidate.id))
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Stitch.callFuture(conversationServiceClient.getAncestors(ancestorsRequest)).map {
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getAncestorsResponse =>
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val ancestors = getAncestorsResponse.ancestors.headOption
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.collect {
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case tcs.TweetAncestorsResult.TweetAncestors(ancestorsResult)
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if ancestorsResult.nonEmpty =>
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ancestorsResult.head.ancestors ++ getTruncatedRootTweet(ancestorsResult.head)
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}.getOrElse(Seq.empty)
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FeatureMapBuilder().add(AncestorsFeature, ancestors).build()
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}
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}
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private def getTruncatedRootTweet(
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ancestors: ta.TweetAncestors,
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): Option[ta.TweetAncestor] = {
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ancestors.conversationRootAuthorId.collect {
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case rootAuthorId
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if ancestors.state == ta.ReplyState.Partial &&
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ancestors.ancestors.last.tweetId != ancestors.conversationId =>
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ta.TweetAncestor(ancestors.conversationId, rootAuthorId)
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}
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}
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}
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