MqttConnectionResolver

Helper class that resolves an MQTT connection and credential parameters, validates them and generates connection options.

Implements: IReferenceable, IConfigurable

The MqttConnectionResolver class allows you to resolve MQTT connections and credential parameters, validate them, and generate connection options.

connection(s):
- discovery_key: (optional) key to retrieve the connection from IDiscovery
- host: host name or IP address
- port: port number
- uri: resource URI or connection string with all parameters in it
credential(s):
- store_key: (optional) key to retrieve the credentials from ICredentialStore
- username: username
- password: user’s password

*:discovery:*:*:1.0 - (optional) IDiscovery services
*:credential-store:*:*:1.0 - (optional) credential stores to resolve credentials

Connection resolver

connectionResolver: ConnectionResolver

Credential resolver

credentialResolver: CredentialResolver

Composes MQTT connection options from connection and credential parameters.

Future<ConfigParams> compose(String? correlationId, ConnectionParams connection, CredentialParams credential)

correlationId: String? - (optional) transaction id used to trace execution through the call chain.
connections: ConnectionParams - connection parameters
credential: CredentialParams - credential parameters
returns: Future<ConfigParams> - resolved MQTT connection options

Configures the component by passing its configuration parameters.

@override

void configure(ConfigParams config)

Resolves MQTT connection options from connection and credential parameters.

Future<ConfigParams> resolve(String? correlationId)

correlationId: String? - (optional) transaction id used to trace execution through the call chain.
returns: Future<ConfigParams> - resolved MQTT connection options.

Sets references to dependent components.

void setReferences(IReferences references)