com.pubnub.internal.subscribe.eventengine.effect.ReceiveMessagesEffect.kt Maven / Gradle / Ivy

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PubNub is a cross-platform client-to-client (1:1 and 1:many) push service in the cloud, capable of broadcasting real-time messages to millions of web and mobile clients simultaneously, in less than a quarter second!

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package com.pubnub.internal.subscribe.eventengine.effect

import com.pubnub.api.PubNubException
import com.pubnub.api.endpoints.remoteaction.RemoteAction
import com.pubnub.internal.eventengine.ManagedEffect
import com.pubnub.internal.eventengine.Sink
import com.pubnub.internal.subscribe.eventengine.event.SubscribeEvent
import org.slf4j.LoggerFactory

internal class ReceiveMessagesEffect(
    private val receiveMessagesRemoteAction: RemoteAction,
    private val subscribeEventSink: Sink,
) : ManagedEffect {
    private val log = LoggerFactory.getLogger(ReceiveMessagesEffect::class.java)

    override fun runEffect() {
        log.trace("Running ReceiveMessagesEffect")

        receiveMessagesRemoteAction.async { result ->
            result.onFailure {
                subscribeEventSink.add(
                    SubscribeEvent.ReceiveFailure(
                        PubNubException.from(it),
                    ),
                )
            }.onSuccess {
                subscribeEventSink.add(SubscribeEvent.ReceiveSuccess(it.messages, it.subscriptionCursor))
            }
        }
    }

    override fun cancel() {
        receiveMessagesRemoteAction.silentCancel()
    }
}