Expose Listener Extension

Expansion Description

This event is triggered when a service is exposed.

Extension ports

org.apache.dubbo.rpc.ExporterListener

Extended configuration

<!-- Expose service monitoring -->
<dubbo:service listener="xxx,yyy" />
<!-- Expose service default listener -->
<dubbo:provider listener="xxx,yyy" />

Known extensions

org.apache.dubbo.registry.directory.RegistryExporterListener

Extended example

Maven project structure:

src
 |-main
    |-java
        |-com
            |-xxx
                |-XxxExporterListener.java (implements ExporterListener interface)
    |-resources
        |-META-INF
            |-dubbo
                |-org.apache.dubbo.rpc.ExporterListener (plain text file, content: xxx=com.xxx.XxxExporterListener)

XxxExporterListener.java:

package com.xxx;
 
import org.apache.dubbo.rpc.ExporterListener;
import org.apache.dubbo.rpc.Exporter;
import org.apache.dubbo.rpc.RpcException;
 
 
public class XxxExporterListener implements ExporterListener {
    public void exported(Exporter<?> exporter) throws RpcException {
        //...
    }
    public void unexported(Exporter<?> exporter) throws RpcException {
        //...
    }
}

META-INF/dubbo/org.apache.dubbo.rpc.ExporterListener:

xxx=com.xxx.XxxExporterListener

Last modified January 2, 2023: Enhance en docs (#1798) (95a9f4f6c)