220.7.2. Headers

// update counter simple.counter by 417
from("direct:in")
    .setHeader(MicrometerConstants.HEADER_COUNTER_INCREMENT, constant(417.0D))
    .to("micrometer:counter:simple.counter?increment=7")
    .to("direct:out");

// update counter simple.counter by 417
from("direct:in")
    .setHeader(MicrometerConstants.HEADER_COUNTER_INCREMENT, constant(417.0D))
    .to("micrometer:counter:simple.counter?increment=7")
    .to("direct:out");

// updates counter using simple language to evaluate body.length
from("direct:in")
    .setHeader(MicrometerConstants.HEADER_COUNTER_INCREMENT, simple("${body.length}"))
    .to("micrometer:counter:body.length")
    .to("direct:out");

// updates counter using simple language to evaluate body.length
from("direct:in")
    .setHeader(MicrometerConstants.HEADER_COUNTER_INCREMENT, simple("${body.length}"))
    .to("micrometer:counter:body.length")
    .to("direct:out");