mirror of
https://github.com/twitter/the-algorithm.git
synced 2024-06-01 00:38:46 +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.
69 lines
2.7 KiB
Scala
69 lines
2.7 KiB
Scala
package com.twitter.home_mixer.functional_component.feature_hydrator
|
|
|
|
import com.twitter.home_mixer.model.HomeFeatures.FollowingLastNonPollingTimeFeature
|
|
import com.twitter.home_mixer.model.HomeFeatures.LastNonPollingTimeFeature
|
|
import com.twitter.home_mixer.model.HomeFeatures.NonPollingTimesFeature
|
|
import com.twitter.home_mixer.service.HomeMixerAlertConfig
|
|
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.identifier.FeatureHydratorIdentifier
|
|
import com.twitter.product_mixer.core.pipeline.PipelineQuery
|
|
import com.twitter.stitch.Stitch
|
|
import com.twitter.user_session_store.ReadRequest
|
|
import com.twitter.user_session_store.ReadWriteUserSessionStore
|
|
import com.twitter.user_session_store.UserSessionDataset
|
|
import com.twitter.user_session_store.UserSessionDataset.UserSessionDataset
|
|
import com.twitter.util.Time
|
|
|
|
import javax.inject.Inject
|
|
import javax.inject.Singleton
|
|
|
|
@Singleton
|
|
case class LastNonPollingTimeQueryFeatureHydrator @Inject() (
|
|
userSessionStore: ReadWriteUserSessionStore)
|
|
extends QueryFeatureHydrator[PipelineQuery] {
|
|
|
|
override val identifier: FeatureHydratorIdentifier =
|
|
FeatureHydratorIdentifier("LastNonPollingTime")
|
|
|
|
override val features: Set[Feature[_, _]] = Set(
|
|
FollowingLastNonPollingTimeFeature,
|
|
LastNonPollingTimeFeature,
|
|
NonPollingTimesFeature
|
|
)
|
|
|
|
private val datasets: Set[UserSessionDataset] = Set(UserSessionDataset.NonPollingTimes)
|
|
|
|
override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
|
|
userSessionStore
|
|
.read(ReadRequest(query.getRequiredUserId, datasets))
|
|
.map { userSession =>
|
|
val nonPollingTimestamps = userSession.flatMap(_.nonPollingTimestamps)
|
|
|
|
val lastNonPollingTime = nonPollingTimestamps
|
|
.flatMap(_.nonPollingTimestampsMs.headOption)
|
|
.map(Time.fromMilliseconds)
|
|
|
|
val followingLastNonPollingTime = nonPollingTimestamps
|
|
.flatMap(_.mostRecentHomeLatestNonPollingTimestampMs)
|
|
.map(Time.fromMilliseconds)
|
|
|
|
val nonPollingTimes = nonPollingTimestamps
|
|
.map(_.nonPollingTimestampsMs)
|
|
.getOrElse(Seq.empty)
|
|
|
|
FeatureMapBuilder()
|
|
.add(FollowingLastNonPollingTimeFeature, followingLastNonPollingTime)
|
|
.add(LastNonPollingTimeFeature, lastNonPollingTime)
|
|
.add(NonPollingTimesFeature, nonPollingTimes)
|
|
.build()
|
|
}
|
|
}
|
|
|
|
override val alerts = Seq(
|
|
HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.9)
|
|
)
|
|
}
|