commonMain.com.ditchoom.mqtt3.controlpacket.ControlPacketV4Factory.kt Maven / Gradle / Ivy

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Defines the MQTT 3 and 4 control packets
There is a newer version: 1.2.0
package com.ditchoom.mqtt3.controlpacket

import com.ditchoom.buffer.ReadBuffer
import com.ditchoom.mqtt.Persistence
import com.ditchoom.mqtt.controlpacket.ControlPacketFactory
import com.ditchoom.mqtt.controlpacket.IPublishMessage
import com.ditchoom.mqtt.controlpacket.ISubscribeRequest
import com.ditchoom.mqtt.controlpacket.ISubscription
import com.ditchoom.mqtt.controlpacket.NO_PACKET_ID
import com.ditchoom.mqtt.controlpacket.QualityOfService
import com.ditchoom.mqtt.controlpacket.Topic
import com.ditchoom.mqtt.controlpacket.format.ReasonCode
import com.ditchoom.mqtt3.persistence.newDefaultPersistence

object ControlPacketV4Factory : ControlPacketFactory {

    override val protocolVersion: Int = 4
    override suspend fun defaultPersistence(androidContext: Any?, name: String, inMemory: Boolean): Persistence =
        newDefaultPersistence(androidContext, name, inMemory)

    override fun from(buffer: ReadBuffer, byte1: UByte, remainingLength: Int) =
        ControlPacketV4.from(buffer, byte1, remainingLength)

    override fun pingRequest() = PingRequest
    override fun pingResponse() = PingResponse

    override fun publish(
        dup: Boolean,
        qos: QualityOfService,
        retain: Boolean,
        topicName: Topic,
        payload: ReadBuffer?,
        // MQTT 5 Properties, Should be ignored in this version
        payloadFormatIndicator: Boolean,
        messageExpiryInterval: Long?,
        topicAlias: Int?,
        responseTopic: Topic?,
        correlationData: ReadBuffer?,
        userProperty: List>,
        subscriptionIdentifier: Set,
        contentType: String?
    ): IPublishMessage {
        val fixedHeader = PublishMessage.FixedHeader(dup, qos, retain)
        val variableHeader = PublishMessage.VariableHeader(topicName, NO_PACKET_ID)
        return PublishMessage(fixedHeader, variableHeader, payload)
    }

    override fun subscribe(
        topicFilter: Topic,
        maximumQos: QualityOfService,
        noLocal: Boolean,
        retainAsPublished: Boolean,
        retainHandling: ISubscription.RetainHandling,
        serverReference: String?,
        userProperty: List>
    ): ISubscribeRequest {
        val subscription = Subscription(topicFilter, maximumQos)
        return subscribe(
            setOf(subscription),
            serverReference,
            userProperty
        )
    }

    override fun subscribe(
        subscriptions: Set,
        serverReference: String?,
        userProperty: List>
    ): ISubscribeRequest = SubscribeRequest(NO_PACKET_ID, subscriptions)

    override fun unsubscribe(
        topics: Set,
        userProperty: List>
    ) = UnsubscribeRequest(NO_PACKET_ID, topics)

    override fun disconnect(
        reasonCode: ReasonCode,
        sessionExpiryIntervalSeconds: ULong?,
        reasonString: String?,
        userProperty: List>
    ) = DisconnectNotification
}