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63 lines
2.6 KiB
Scala
63 lines
2.6 KiB
Scala
package com.twitter.home_mixer.product.for_you.feature_hydrator
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import com.twitter.home_mixer.marshaller.timelines.DeviceContextMarshaller
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import com.twitter.home_mixer.model.HomeFeatures.TimelineServiceTweetsFeature
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import com.twitter.home_mixer.model.request.DeviceContext
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import com.twitter.home_mixer.model.request.HasDeviceContext
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import com.twitter.home_mixer.service.HomeMixerAlertConfig
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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.QueryFeatureHydrator
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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.stitch.timelineservice.TimelineService
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import com.twitter.timelineservice.{thriftscala => t}
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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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case class TimelineServiceTweetsQueryFeatureHydrator @Inject() (
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timelineService: TimelineService,
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deviceContextMarshaller: DeviceContextMarshaller)
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extends QueryFeatureHydrator[PipelineQuery with HasDeviceContext] {
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override val identifier: FeatureHydratorIdentifier =
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FeatureHydratorIdentifier("TimelineServiceTweets")
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override val features: Set[Feature[_, _]] = Set(TimelineServiceTweetsFeature)
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private val MaxTimelineServiceTweets = 200
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override def hydrate(query: PipelineQuery with HasDeviceContext): Stitch[FeatureMap] = {
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val deviceContext = query.deviceContext.getOrElse(DeviceContext.Empty)
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val timelineQueryOptions = t.TimelineQueryOptions(
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contextualUserId = query.clientContext.userId,
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deviceContext = Some(deviceContextMarshaller(deviceContext, query.clientContext))
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)
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val timelineServiceQuery = t.TimelineQuery(
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timelineType = t.TimelineType.Home,
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timelineId = query.getRequiredUserId,
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maxCount = MaxTimelineServiceTweets.toShort,
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cursor2 = None,
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options = Some(timelineQueryOptions),
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timelineId2 = query.clientContext.userId.map(t.TimelineId(t.TimelineType.Home, _, None)),
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)
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timelineService.getTimeline(timelineServiceQuery).map { timeline =>
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val tweets = timeline.entries.collect {
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case t.TimelineEntry.Tweet(tweet) => tweet.statusId
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}
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FeatureMapBuilder().add(TimelineServiceTweetsFeature, tweets).build()
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}
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}
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override val alerts = Seq(
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HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.7)
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)
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}
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