Krill SDK/krill.zone.shared.krillapp.executor.mqtt/MqttMetaData

MqttMetaData

@Serializable

data class MqttMetaData(val sources: List<NodeIdentity> = emptyList(), val snapshot: Snapshot = Snapshot(), val address: String = "", val topic: String = "", val action: MqttAction = MqttAction.PUB, val invocationTriggers: List<InvocationTrigger> = emptyList(), val nodeAction: NodeAction = NodeAction.EXECUTE, val error: String = "", val inputs: List<NodeIdentity> = emptyList()) : SourceMetaData(source)

Payload for an MQTT executor node.

Constructors

MqttMetaData

constructor(sources: List<NodeIdentity> = emptyList(), snapshot: Snapshot = Snapshot(), address: String = "", topic: String = "", action: MqttAction = MqttAction.PUB, invocationTriggers: List<InvocationTrigger> = emptyList(), nodeAction: NodeAction = NodeAction.EXECUTE, error: String = "", inputs: List<NodeIdentity> = emptyList())

Properties

action

val action: MqttAction

Whether this node is in publish or subscribe mode.

address

val address: String

Broker address (host:port or URI).

error

open override val error: String

Last known error message for this node, or empty string when healthy.

inputs

open override val inputs: List<NodeIdentity>

sets the nodes this node reads from to complete its work when invoked

invocationTriggers

open override val invocationTriggers: List<InvocationTrigger>

The set of InvocationTriggers configured to wake this node. The node processor checks the incoming event against this list before doing any work. An empty list means "never auto-fire" — only manual execution.

nodeAction

open override val nodeAction: NodeAction

The action this node performs when it fires. Defaults to NodeAction.EXECUTE on every concrete implementation so that deserialising a payload that predates this field yields the original behaviour unchanged.

snapshot

open override val snapshot: Snapshot

Stores the last result of when this node was invoked and is a source of data

sources

open override val sources: List<NodeIdentity>

Upstream nodes whose values feed this one. For a filter or executor this is the data being read; for a trigger it is the value being watched.

topic

val topic: String

Topic pattern to publish to or subscribe from.