MetricsPlugin.java 文件源码

private void registerMetrics( Application application, MetricRegistry metrics )
{
    Config config = application.config().atKey( "metrics" );

    // JVM Meters
    if( config.bool( "jvm.bufferpools.enabled" ) )
    {
        metrics.register( "jvm.bufferpools", new BufferPoolMetricSet( getPlatformMBeanServer() ) );
    }
    if( config.bool( "jvm.threadstates.enabled" ) )
    {
        metrics.register( "jvm.threadstates", new ThreadStatesGaugeSet() );
    }
    if( config.bool( "jvm.classloading.enabled" ) )
    {
        metrics.register( "jvm.classloading", new ClassLoadingGaugeSet() );
    }
    if( config.bool( "jvm.garbagecollection.enabled" ) )
    {
        metrics.register( "jvm.garbagecollection", new GarbageCollectorMetricSet() );
    }
    if( config.bool( "jvm.memory.enabled" ) )
    {
        metrics.register( "jvm.memory", new MemoryUsageGaugeSet() );
    }
    if( config.bool( "jvm.filedescriptors.enabled" ) )
    {
        metrics.register( "jvm.filedescriptors.ratio", new FileDescriptorRatioGauge() );
    }

    // Connection & HTTP Metrics
    requestTimers = new ConcurrentHashMap<>();
    eventRegistration = application.events().registerListener(
        new EventListener(
            metrics,
            requestTimers,
            config.bool( "http.connections.enabled" ),
            config.bool( "http.requests.enabled" ),
            config.bool( "http.success.enabled" ),
            config.bool( "http.redirections.enabled" ),
            config.bool( "http.client_errors.enabled" ),
            config.bool( "http.server_errors.enabled" ),
            config.bool( "http.unknown.enabled" )
        )
    );
}