Package org.eclipse.ditto.things.model.signals.events

Class ThingEventToThingConverter

java.lang.Object

org.eclipse.ditto.things.model.signals.events.ThingEventToThingConverter

public final class ThingEventToThingConverter
extends Object

Helpers and utils for converting ThingEvents to Things.

Method Summary

Modifier and Type	Method	Description
static Optional<Thing>	mergeThingWithExtraFields(org.eclipse.ditto.base.model.signals.Signal<?> signal, org.eclipse.ditto.json.JsonFieldSelector extraFields, org.eclipse.ditto.json.JsonObject extra)	Merge any thing information in a signal event together with extra fields from signal enrichment.
static Optional<Thing>	thingEventToThing(ThingEvent<?> thingEvent)	Creates a Thing from the passed ThingEvent.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

thingEventToThing

public static Optional<Thing> thingEventToThing(ThingEvent<?> thingEvent)

Creates a Thing from the passed ThingEvent.

Parameters:

thingEvent - the ThingEvent to extract the correlating Thing from

Returns:

the Thing represented by the passed in ThingEvent

mergeThingWithExtraFields

public static Optional<Thing> mergeThingWithExtraFields(@Nullable
 org.eclipse.ditto.base.model.signals.Signal<?> signal,
 @Nullable
 org.eclipse.ditto.json.JsonFieldSelector extraFields,
 org.eclipse.ditto.json.JsonObject extra)

Merge any thing information in a signal event together with extra fields from signal enrichment. Thing events contain thing information. All other signals do not contain thing information. Extra fields contain thing information if it is not empty. If thing information exists in any of the 2 sources, then merge the information from both sources to create a thing, with priority given to the thing information extracted by the signal.

Parameters:

signal - the signal.

extraFields - selected extra fields to enrich the signal with.

extra - value of the extra fields.

Returns:

the merged thing if thing information exists in any of the 2 sources, or an empty optional otherwise.