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48 lines
2.2 KiB
Scala
48 lines
2.2 KiB
Scala
package com.twitter.product_mixer.core.pipeline.candidate
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import com.twitter.product_mixer.core.functional_component.candidate_source.PassthroughCandidateSource
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import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateExtractor
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import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
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import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
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import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
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import com.twitter.product_mixer.core.model.common.UniversalNoun
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import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
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import com.twitter.product_mixer.core.model.common.identifier.CandidateSourceIdentifier
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import com.twitter.product_mixer.core.pipeline.PipelineQuery
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object PassthroughCandidatePipelineConfig {
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/**
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* Build a [[PassthroughCandidatePipelineConfig]] with a [[PassthroughCandidateSource]] built from
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* a [[CandidateExtractor]]
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*/
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def apply[Query <: PipelineQuery, Candidate <: UniversalNoun[Any]](
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identifier: CandidatePipelineIdentifier,
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extractor: CandidateExtractor[Query, Candidate],
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decorator: Option[CandidateDecorator[Query, Candidate]] = None
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): PassthroughCandidatePipelineConfig[Query, Candidate] = {
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// Renaming variables to keep the interface clean, but avoid naming collisions when creating
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// the anonymous class.
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val _identifier = identifier
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val _extractor = extractor
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val _decorator = decorator
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new PassthroughCandidatePipelineConfig[Query, Candidate] {
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override val identifier = _identifier
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override val candidateSource =
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PassthroughCandidateSource(CandidateSourceIdentifier(_identifier.name), _extractor)
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override val decorator = _decorator
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}
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}
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}
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trait PassthroughCandidatePipelineConfig[Query <: PipelineQuery, Candidate <: UniversalNoun[Any]]
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extends CandidatePipelineConfig[Query, Query, Candidate, Candidate] {
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override val queryTransformer: CandidatePipelineQueryTransformer[Query, Query] = identity
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override val resultTransformer: CandidatePipelineResultsTransformer[Candidate, Candidate] =
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identity
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}
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