33 lines
1.2 KiB
Scala
33 lines
1.2 KiB
Scala
package com.twitter.home_mixer.functional_component.filter
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import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
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import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
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import com.twitter.product_mixer.core.functional_component.filter.Filter
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import com.twitter.product_mixer.core.functional_component.filter.FilterResult
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import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
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import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
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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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object RetweetFilter extends Filter[PipelineQuery, TweetCandidate] {
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override val identifier: FilterIdentifier = FilterIdentifier("Retweet")
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override def apply(
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query: PipelineQuery,
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candidates: Seq[CandidateWithFeatures[TweetCandidate]]
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): Stitch[FilterResult[TweetCandidate]] = {
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val (kept, removed) = candidates
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.partition { candidate =>
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!candidate.features.getOrElse(IsRetweetFeature, false)
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}
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val filterResult = FilterResult(
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kept = kept.map(_.candidate),
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removed = removed.map(_.candidate)
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)
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Stitch.value(filterResult)
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}
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}
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