org.noear.solon.cloud.eventplus.impl.CloudEventSubscribeBeanBuilder Maven / Gradle / Ivy

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package org.noear.solon.cloud.eventplus.impl;

import org.noear.solon.Solon;
import org.noear.solon.Utils;
import org.noear.solon.cloud.CloudClient;
import org.noear.solon.cloud.CloudManager;
import org.noear.solon.cloud.annotation.CloudEvent;
import org.noear.solon.cloud.eventplus.CloudEventHandlerPlus;
import org.noear.solon.cloud.eventplus.CloudEventSubscribe;
import org.noear.solon.core.BeanBuilder;
import org.noear.solon.core.BeanWrap;
import org.noear.solon.core.util.GenericUtil;

/**
 * @author noear
 * @author 颖
 * @since 1.5
 */
public class CloudEventSubscribeBeanBuilder implements BeanBuilder {

    @Override
    public void doBuild(Class clz, BeanWrap bw, CloudEventSubscribe anno) throws Exception {
        if (CloudClient.event() == null) {
            throw new IllegalStateException("Missing CloudEventService component");
        }

        if (bw.raw() instanceof CloudEventHandlerPlus) {

            Class[] ets = GenericUtil.resolveTypeArguments(clz, CloudEventHandlerPlus.class);

            if (ets != null && ets.length > 0) {
                Class entityClz = ets[0];
                CloudEvent anno2 = entityClz.getAnnotation(CloudEvent.class);

                if (anno2 == null) {
                    throw new IllegalArgumentException("The entity is missing (@CloudEvent) annotations: " + this.getClass().getName());
                }

                //支持${xxx}配置
                String topic2 = Solon.cfg().getByTmpl(Utils.annoAlias(anno2.value(), anno2.topic()));
                //支持${xxx}配置
                String group2 = Solon.cfg().getByTmpl(anno2.group());

                CloudEventHandlerProxy hadnler2 = new CloudEventHandlerProxy(bw.raw(), entityClz);

                CloudManager.register(anno2, hadnler2);
                CloudClient.event().attention(anno2.level(), anno2.channel(), group2, topic2, anno2.tag(), anno2.qos(), hadnler2);
            }
        }
    }
}