[deconz] Battery value is no longer shown for ZHABattery sensor

[MHerbst]

The battery sensor that is created for Ikea blinds no longer delivers a value for the "battery_level" channel.

The trace log shows that the value is correctly retrieved, but this is the only message regarding the battery level:

20:50:53.730 [ient-common-184] TRACE o.o.b.d.i.h.SensorBaseThingHandler:270 - deconz:batterysensor:c291659a:086bd7fffe602991010001 received SensorState{dark=null, daylight=null, lightlevel=null, lux=null, temperature=null, humidity=null, open=null, fire=null, water=null, alarm=null, tampered=null, vibration=null, carbonmonoxide=null, pressure=null, presence=null, power=null, battery=85, consumption=null, voltage=null, current=null, status=null, buttonevent=null, gesture=null, lastupdated='2020-06-14T18:41:24.823'}

The lastupdated channel is correctly updated but not the battery_level.

It seems that the battery_level ist handle in the wrong method:

openhab-addons/bundles/org.openhab.binding.deconz/src/main/java/org/openhab/binding/deconz/internal/handler/SensorBaseThingHandler.java

Line 205 in 24e0838

protected void valueUpdated(ChannelUID channelUID, SensorConfig newConfig) {

contains a case for CHANNEL_BATTERY_LEVEL but the other valueUpdated method (

openhab-addons/bundles/org.openhab.binding.deconz/src/main/java/org/openhab/binding/deconz/internal/handler/SensorBaseThingHandler.java

Line 230 in 24e0838

protected void valueUpdated(String channelID, SensorState newState, boolean initializing) {

) is called instead.

This problem has been introduced with one of the latest commit. With older versions it worked correctly.

Tested with commit f9e5454

[J-N-K]

The reason is that most sensors report it as config, while Ikea reports it as state. The support for that was unintentionally dropped in the refactoring #7828. I'll provide a PR to add it back.