红帽全球峰会220.10. Metrics 类型 timer
metrics:timer:metricname[?options]220.10.1. 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 上调用操作 start，则不会运行计时器，则不会更新并记录警告。
// measure time taken by route "calculate"
from("direct:in")
.to("metrics:timer:simple.timer?action=start")
.to("direct:calculate")
.to("metrics:timer:simple.timer?action=stop");
TimerContext 对象存储为不同 Metrics 组件调用之间的 Exchange 属性。
220.10.2. Headers
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消息标头可用于覆盖 Metrics 组件 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(MetricsConstants.HEADER_TIMER_ACTION, TimerAction.start)
.to("metrics:timer:simple.timer")
.to("direct:out");
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