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SOLVED: Using config to enable/disable background discovery [message #1800269]

Sat, 22 December 2018 09:14

Eclipse User

When a system is stable and in steady state, and there's no need to discover things, system resources can be saved by disabling discovery services for the bindings one has installed.

I understand how to enable/disable background discovery using the background config parameter and the configurationPid when the Discovery Service is declared using the @Component annotation. Like this with a configurationPid of discovery.nameofbinding

discovery.nameofbinding:background=false

However, what about when the Discovery Service is created, activated, and registered in the Handler Factory, such as how it's done in the Hue binding? Is there a way to enable/disable background discovery using a configuration parameter when the Discovery Service is running using this approach? If not, is there some other way to do it?
https://github.com/eclipse/smarthome/blob/0.10.x/extensions/binding/org.eclipse.smarthome.binding.hue/src/main/java/org/eclipse/smarthome/binding/hue/internal/HueThingHandlerFactory.java#L137

[Updated on: Fri, 28 December 2018 12:11] by Moderator

Re: Using config to enable/disable background discovery [message #1800450 is a reply to message #1800269]

Fri, 28 December 2018 11:57

Eclipse User

For those there is no common way to enable/disable discovery. The only option is to make it a config parameter of the bridge whether or not it shall provide information about newly discovered devices - see https://github.com/eclipse/smarthome/blob/master/extensions/binding/org.eclipse.smarthome.binding.bluetooth.bluegiga/src/main/java/org/eclipse/smarthome/binding/bluetooth/bluegiga/handler/BlueGigaBridgeHandler.java#L174-L178 for an example.

Re: Using config to enable/disable background discovery [message #1800451 is a reply to message #1800450]

Fri, 28 December 2018 12:08

Eclipse User

Thanks. I had a feeling that would be the case. I ended up doing exactly what you suggested.

Re: Using config to enable/disable background discovery [message #1800621 is a reply to message #1800451]

Thu, 03 January 2019 14:02

Eclipse User

An "external" component could be easily deactivated programmatically.
See e.g.

It should be easy to create a simple service that can be configured which other components should be disabled (e.g. org.eclipse.smarthome.config.discovery.internal.DiscoveryServiceRegistryImpl or every implementation of ...)

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