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• MapReduceFlux.kt

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com.github.cedrickring.reactormongodb.collection.flux.MapReduceFlux.kt Maven / Gradle / Ivy

package com.github.cedrickring.reactormongodb.collection.flux

import com.github.cedrickring.reactormongodb.collection.ReactiveCollection
import reactor.core.CoreSubscriber
import reactor.core.publisher.Flux

class MapReduceFlux(private val reactiveCollection: ReactiveCollection,
                               private val mapFunction: String,
                               private val reduceFunction: String,
                               private val resultClass: Class) : Flux() {

    override fun subscribe(actual: CoreSubscriber?) {
        reactiveCollection.nativeCollection.mapReduce(mapFunction, reduceFunction, resultClass)
                .forEach(
                        { result -> actual?.onNext(result) },
                        { _, throwable -> if (throwable != null) actual?.onError(throwable) }
                )
    }

}