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    Monitor Extension

    Summary

    Extension to monitor service invocation times and time taken for each service invocation.

    Extension Interface

    • org.apache.dubbo.monitor.MonitorFactory
    • org.apache.dubbo.monitor.Monitor

    Extension Configuration

    <!-- configure monitor center -->
<dubbo:monitor address="xxx://ip:port" />

    Existing Extension

    org.apache.dubbo.monitor.support.dubbo.DubboMonitorFactory

    Extension Guide

    Directory layout:

    src
 |-main
    |-java
        |-com
            |-xxx
                |-XxxMonitorFactoryjava (MonitorFactory implementation)
                |-XxxMonitor.java (Monitor implementation)
    |-resources
        |-META-INF
            |-dubbo
                |-org.apache.dubbo.monitor.MonitorFactory (plain text file with the format: xxx=com.xxx.XxxMonitorFactory)

    XxxMonitorFactory.java：

    package com.xxx;
 
import org.apache.dubbo.monitor.MonitorFactory;
import org.apache.dubbo.monitor.Monitor;
import org.apache.dubbo.common.URL;
 
public class XxxMonitorFactory implements MonitorFactory {
    public Monitor getMonitor(URL url) {
        return new XxxMonitor(url);
    }
}

    XxxMonitor.java：

    package com.xxx;
 
import org.apache.dubbo.monitor.Monitor;
 
public class XxxMonitor implements Monitor {
    public void count(URL statistics) {
        // ...
    }
}

    META-INF/dubbo/org.apache.dubbo.monitor.MonitorFactory：

    xxx=com.xxx.XxxMonitorFactory