| package reactortest; |
| |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Reference; |
| import org.reactivestreams.Publisher; |
| import org.reactivestreams.Subscriber; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import component.api.MComponent; |
| import reactor.core.publisher.Flux; |
| import reactor.math.MathFlux; |
| |
| @Component(immediate=true) |
| public class MqttExample { |
| Logger LOG = LoggerFactory.getLogger(MqttExample.class); |
| |
| @Reference(target="(name=mqtt)") |
| MComponent mqtt; |
| |
| @Activate |
| public void start() throws Exception { |
| LOG.info("Starting mqtt test component"); |
| Publisher<byte[]> fromTopic = mqtt.from("input", byte[].class); |
| Subscriber<byte[]> toTopic = mqtt.to("output", byte[].class); |
| Flux.from(fromTopic) |
| .map(ByteArrayConverter::asInteger) |
| .log() |
| .window(2, 1) |
| .flatMap(win -> MathFlux.averageDouble(win)) |
| .map(DoubleConverter::asByteAr) |
| .subscribe(toTopic); |
| LOG.info("mqtt test component started"); |
| } |
| |
| } |