the-algorithm/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/ConversationServiceCandidat...

117 lines
5.9 KiB
Scala

package com.twitter.home_mixer.candidate_pipeline
import com.twitter.home_mixer.functional_component.feature_hydrator.InNetworkFeatureHydrator
import com.twitter.home_mixer.functional_component.feature_hydrator.NamesFeatureHydrator
import com.twitter.home_mixer.functional_component.feature_hydrator.TweetypieFeatureHydrator
import com.twitter.home_mixer.functional_component.filter.InvalidConversationModuleFilter
import com.twitter.home_mixer.functional_component.filter.InvalidSubscriptionTweetFilter
import com.twitter.home_mixer.functional_component.filter.RetweetDeduplicationFilter
import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
import com.twitter.home_mixer.model.HomeFeatures.IsHydratedFeature
import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetDroppedFeature
import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
import com.twitter.home_mixer.service.HomeMixerAlertConfig
import com.twitter.product_mixer.component_library.candidate_source.tweetconvosvc.ConversationServiceCandidateSource
import com.twitter.product_mixer.component_library.candidate_source.tweetconvosvc.ConversationServiceCandidateSourceRequest
import com.twitter.product_mixer.component_library.candidate_source.tweetconvosvc.TweetWithConversationMetadata
import com.twitter.product_mixer.component_library.filter.FeatureFilter
import com.twitter.product_mixer.component_library.filter.PredicateFeatureFilter
import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
import com.twitter.product_mixer.core.functional_component.filter.Filter
import com.twitter.product_mixer.core.functional_component.gate.BaseGate
import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
import com.twitter.product_mixer.core.functional_component.transformer.DependentCandidatePipelineQueryTransformer
import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
import com.twitter.product_mixer.core.pipeline.PipelineQuery
import com.twitter.product_mixer.core.pipeline.candidate.DependentCandidatePipelineConfig
/**
* Candidate Pipeline Config that fetches tweets from the Conversation Service Candidate Source
*/
class ConversationServiceCandidatePipelineConfig[Query <: PipelineQuery](
conversationServiceCandidateSource: ConversationServiceCandidateSource,
tweetypieFeatureHydrator: TweetypieFeatureHydrator,
namesFeatureHydrator: NamesFeatureHydrator,
invalidSubscriptionTweetFilter: InvalidSubscriptionTweetFilter,
override val gates: Seq[BaseGate[Query]],
override val decorator: Option[CandidateDecorator[Query, TweetCandidate]])
extends DependentCandidatePipelineConfig[
Query,
ConversationServiceCandidateSourceRequest,
TweetWithConversationMetadata,
TweetCandidate
] {
override val identifier: CandidatePipelineIdentifier =
CandidatePipelineIdentifier("ConversationService")
private val TweetypieHydratedFilterId = "TweetypieHydrated"
private val QuotedTweetDroppedFilterId = "QuotedTweetDropped"
override val candidateSource: BaseCandidateSource[
ConversationServiceCandidateSourceRequest,
TweetWithConversationMetadata
] = conversationServiceCandidateSource
override val queryTransformer: DependentCandidatePipelineQueryTransformer[
Query,
ConversationServiceCandidateSourceRequest
] = { (_, candidates) =>
val tweetsWithConversationMetadata = candidates.map { candidate =>
TweetWithConversationMetadata(
tweetId = candidate.candidateIdLong,
userId = candidate.features.getOrElse(AuthorIdFeature, None),
sourceTweetId = candidate.features.getOrElse(SourceTweetIdFeature, None),
sourceUserId = candidate.features.getOrElse(SourceUserIdFeature, None),
inReplyToTweetId = candidate.features.getOrElse(InReplyToTweetIdFeature, None),
conversationId = None,
ancestors = Seq.empty
)
}
ConversationServiceCandidateSourceRequest(tweetsWithConversationMetadata)
}
override val featuresFromCandidateSourceTransformers: Seq[
CandidateFeatureTransformer[TweetWithConversationMetadata]
] = Seq(ConversationServiceResponseFeatureTransformer)
override val resultTransformer: CandidatePipelineResultsTransformer[
TweetWithConversationMetadata,
TweetCandidate
] = { sourceResult => TweetCandidate(id = sourceResult.tweetId) }
override val preFilterFeatureHydrationPhase1: Seq[
BaseCandidateFeatureHydrator[Query, TweetCandidate, _]
] = Seq(
tweetypieFeatureHydrator,
InNetworkFeatureHydrator,
)
override def filters: Seq[Filter[Query, TweetCandidate]] = Seq(
RetweetDeduplicationFilter,
FeatureFilter.fromFeature(FilterIdentifier(TweetypieHydratedFilterId), IsHydratedFeature),
PredicateFeatureFilter.fromPredicate(
FilterIdentifier(QuotedTweetDroppedFilterId),
shouldKeepCandidate = { features => !features.getOrElse(QuotedTweetDroppedFeature, false) }
),
invalidSubscriptionTweetFilter,
InvalidConversationModuleFilter
)
override val postFilterFeatureHydration: Seq[
BaseCandidateFeatureHydrator[Query, TweetCandidate, _]
] = Seq(namesFeatureHydrator)
override val alerts = Seq(
HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(),
HomeMixerAlertConfig.BusinessHours.defaultEmptyResponseRateAlert()
)
}