What

Periodic exchange trigger with no external dependencies. Fires on a fixed interval, optionally with a startup delay and a maximum fire count.

Install

npm install camel-lite-component-timer

URI Syntax

timer:name[?period=1000&delay=0&repeatCount=0]

| Parameter | Default | Description | |---------------|---------|-------------| | period | 1000 | Interval between firings in milliseconds. | | delay | 0 | Delay before the first firing in milliseconds. | | repeatCount | 0 | Number of times to fire. 0 = infinite. |

Headers Set on Each Exchange

| Header | Type | Description | |-----------------------|----------|-------------| | CamelTimerName | string | The timer name from the URI. | | CamelTimerFiredTime | Date | Timestamp of the firing. | | CamelTimerCounter | number | Fire count (1-based). |

Usage

import { CamelContext } from 'camel-lite-core';
import { TimerComponent } from 'camel-lite-component-timer';

const context = new CamelContext();
context.addComponent('timer', new TimerComponent());

context.addRoutes({
  configure(ctx) {
    ctx.from('timer:tick?period=5000&repeatCount=3')
      .process(exchange => {
        const counter = exchange.in.getHeader('CamelTimerCounter');
        const firedAt = exchange.in.getHeader('CamelTimerFiredTime');
        console.log(`Tick #${counter} at ${firedAt.toISOString()}`);
      });
  }
});

await context.start();
// Fires 3 times at 5-second intervals, then stops.

See Also

camel-lite — root README