红帽全球峰会221.7. Counter
micrometer:counter:name[?options]
micrometer:counter:name[?options]221.7.1. 选项
复制链接链接已复制到粘贴板!
| Name | default | 描述 |
|---|---|---|
| 增量 | - | 要添加到计数器的双值 |
| decrement | - | 从计数器中减去加倍的值 |
如果没有定义 递增 或减少 值，则计数器值将以 1 递增。如果同时定义了 和减少，则只调用递增操作。
递增
// update counter simple.counter by 7
from("direct:in")
.to("micrometer:counter:simple.counter?increment=7")
.to("direct:out");
// update counter simple.counter by 7
from("direct:in")
.to("micrometer:counter:simple.counter?increment=7")
.to("direct:out");// increment counter simple.counter by 1
from("direct:in")
.to("micrometer:counter:simple.counter")
.to("direct:out");
// increment counter simple.counter by 1
from("direct:in")
.to("micrometer:counter:simple.counter")
.to("direct:out");
increment 和 decrement 值都被评估为带有 Double 结果的 Simple 表达式，例如，如果标头 X 包含评估为 3.0 的值，则 simple.counter 计数器由 3.0 减少：
// decrement counter simple.counter by 3
from("direct:in")
.to("micrometer:counter:simple.counter?decrement=${header.X}")
.to("direct:out");
// decrement counter simple.counter by 3
from("direct:in")
.to("micrometer:counter:simple.counter?decrement=${header.X}")
.to("direct:out");221.7.2. Headers
复制链接链接已复制到粘贴板!
与 camel-metrics 中一样，特定的 Message 标头可用于覆盖 Micrometer 端点 URI 中指定的 递增 和减少值。
| Name | 描述 | 预期类型 |
|---|---|---|
| CamelMetricsCounterIncrement | 覆盖 URI 中的递增值 | å�Œ |
| CamelMetricsCounterDecrement | 覆盖 URI 中的减少值 | å�Œ |
// 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");
'%20d='M201.5%20305.5c-13.8%200-24.9-11.1-24.9-24.6%200-13.8%2011.1-24.9%2024.9-24.9%2013.6%200%2024.6%2011.1%2024.6%2024.9%200%2013.6-11.1%2024.6-24.6%2024.6zM504%20256c0%20137-111%20248-248%20248S8%20393%208%20256%20119%208%20256%208s248%20111%20248%20248zm-132.3-41.2c-9.4%200-17.7%203.9-23.8%2010-22.4-15.5-52.6-25.5-86.1-26.6l17.4-78.3%2055.4%2012.5c0%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.3%2024.9-24.9s-11.1-24.9-24.9-24.9c-9.7%200-18%205.8-22.1%2013.8l-61.2-13.6c-3-.8-6.1%201.4-6.9%204.4l-19.1%2086.4c-33.2%201.4-63.1%2011.3-85.5%2026.8-6.1-6.4-14.7-10.2-24.1-10.2-34.9%200-46.3%2046.9-14.4%2062.8-1.1%205-1.7%2010.2-1.7%2015.5%200%2052.6%2059.2%2095.2%20132%2095.2%2073.1%200%20132.3-42.6%20132.3-95.2%200-5.3-.6-10.8-1.9-15.8%2031.3-16%2019.8-62.5-14.9-62.5zM302.8%20331c-18.2%2018.2-76.1%2017.9-93.6%200-2.2-2.2-6.1-2.2-8.3%200-2.5%202.5-2.5%206.4%200%208.6%2022.8%2022.8%2087.3%2022.8%20110.2%200%202.5-2.2%202.5-6.1%200-8.6-2.2-2.2-6.1-2.2-8.3%200zm7.7-75c-13.6%200-24.6%2011.1-24.6%2024.9%200%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.1%2024.9-24.6%200-13.8-11-24.9-24.9-24.9z'/%3e%3c/svg%3e){kind=small}