红帽全球峰会97.12. 计时器
micrometer:timer:metricname[?options]
micrometer:timer:metricname[?options]97.12.1. 选项
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| Name | default | 描述 |
|---|---|---|
| action | 启动或停止 |
如果没有提供 操作 或无效值，则在没有计时器更新的情况下会记录警告。如果在已在运行的计时器 或停止 中调用操作 start，在未知计时器中调用操作，则不会更新任何内容并记录警告。
// measure time spent in route "direct:calculate"
from("direct:in")
.to("micrometer:timer:simple.timer?action=start")
.to("direct:calculate")
.to("micrometer:timer:simple.timer?action=stop");
// measure time spent in route "direct:calculate"
from("direct:in")
.to("micrometer:timer:simple.timer?action=start")
.to("direct:calculate")
.to("micrometer:timer:simple.timer?action=stop");
timer.Sample 对象存储为不同 Metrics 组件调用之间的 Exchange 属性。
操作 被评估为简单表达式返回类型为 MicrometerTimerAction 的结果。
97.12.2. Headers
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与 camel-metrics 中相似，特定的 Message 标头可用于覆盖 Micrometer 端点 URI 中指定的操作值。
| Name | 描述 | 预期类型 |
|---|---|---|
| CamelMetricsTimerAction | 覆盖 URI 中的计时器操作 |
|
// sets timer action using header
from("direct:in")
.setHeader(MicrometerConstants.HEADER_TIMER_ACTION, MicrometerTimerAction.start)
.to("micrometer:timer:simple.timer")
.to("direct:out");
// sets timer action using header
from("direct:in")
.setHeader(MicrometerConstants.HEADER_TIMER_ACTION, MicrometerTimerAction.start)
.to("micrometer:timer:simple.timer")
.to("direct:out");
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