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• EventBusEventOutput.java

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org.jetlinks.rule.engine.defaults.EventBusEventOutput Maven / Gradle / Ivy

package org.jetlinks.rule.engine.defaults;

import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.extern.slf4j.Slf4j;
import org.jetlinks.core.event.EventBus;
import org.jetlinks.core.utils.Reactors;
import org.jetlinks.rule.engine.api.RuleConstants;
import org.jetlinks.rule.engine.api.RuleData;
import org.jetlinks.rule.engine.api.task.Output;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Mono;

@Slf4j
@AllArgsConstructor
public class EventBusEventOutput implements Output {

    protected final String instanceId;

    protected final EventBus eventBus;

    @Getter
    protected final String event;

    protected final String sourceNode;

    @Override
    public Mono write(Publisher dataStream) {
        return eventBus
            .publish(createTopic(sourceNode), dataStream)
            .then(Reactors.ALWAYS_TRUE);
    }

    @Override
    public Mono write(String nodeId, Publisher data) {
        return eventBus.publish(createTopic(nodeId), data).then();
    }

    protected String createTopic(String node) {
        return RuleConstants.Topics.input(instanceId, node);
    }

}