220.9. Metric 유형 측정

// marks simple.meter without value
from("direct:in")
    .to("metric:simple.meter")
    .to("direct:out");

// marks simple.meter with value 81
from("direct:in")
    .to("metric:meter:simple.meter?mark=81")
    .to("direct:out");

// updates meter simple.meter with value 345
from("direct:in")
    .setHeader(MetricsConstants.HEADER_METER_MARK, constant(345L))
    .to("metrics:meter:simple.meter?mark=123")
    .to("direct:out");