mirror of
https://github.com/twitter/the-algorithm.git
synced 2024-06-01 08:48:46 +02:00
ef4c5eb65e
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.
45 lines
2.1 KiB
Scala
45 lines
2.1 KiB
Scala
package com.twitter.home_mixer.functional_component.filter
|
|
|
|
import com.twitter.common_internal.analytics.twitter_client_user_agent_parser.UserAgent
|
|
import com.twitter.home_mixer.model.HomeFeatures.IsAncestorCandidateFeature
|
|
import com.twitter.home_mixer.model.HomeFeatures.PersistenceEntriesFeature
|
|
import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
|
|
import com.twitter.product_mixer.core.functional_component.filter.Filter
|
|
import com.twitter.product_mixer.core.functional_component.filter.FilterResult
|
|
import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
|
|
import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
|
|
import com.twitter.product_mixer.core.pipeline.PipelineQuery
|
|
import com.twitter.stitch.Stitch
|
|
import com.twitter.timelinemixer.injection.store.persistence.TimelinePersistenceUtils
|
|
import com.twitter.timelines.util.client_info.ClientPlatform
|
|
|
|
object PreviouslyServedAncestorsFilter
|
|
extends Filter[PipelineQuery, TweetCandidate]
|
|
with TimelinePersistenceUtils {
|
|
|
|
override val identifier: FilterIdentifier = FilterIdentifier("PreviouslyServedAncestors")
|
|
|
|
override def apply(
|
|
query: PipelineQuery,
|
|
candidates: Seq[CandidateWithFeatures[TweetCandidate]]
|
|
): Stitch[FilterResult[TweetCandidate]] = {
|
|
val clientPlatform = ClientPlatform.fromQueryOptions(
|
|
clientAppId = query.clientContext.appId,
|
|
userAgent = query.clientContext.userAgent.flatMap(UserAgent.fromString))
|
|
val entries =
|
|
query.features.map(_.getOrElse(PersistenceEntriesFeature, Seq.empty)).toSeq.flatten
|
|
val tweetIds = applicableResponses(clientPlatform, entries)
|
|
.flatMap(_.entries.flatMap(_.tweetIds(includeSourceTweets = true))).toSet
|
|
val ancestorIds =
|
|
candidates
|
|
.filter(_.features.getOrElse(IsAncestorCandidateFeature, false)).map(_.candidate.id).toSet
|
|
|
|
val (removed, kept) =
|
|
candidates
|
|
.map(_.candidate).partition(candidate =>
|
|
tweetIds.contains(candidate.id) && ancestorIds.contains(candidate.id))
|
|
|
|
Stitch.value(FilterResult(kept = kept, removed = removed))
|
|
}
|
|
}
|