Delayer

The Delayer is used for slowing processing of messages.

This allows you to set a fixed amount of delay between each step a message passes in the route. It can be used to better show how things are happening nicely and slowly, so you are not bombarded with a zillion lines of logging output.

Using Delayer

The delayer can be configured on two levels:

Camel context: Globally
Route: Individually per route

Configuring using XML DSL

Set the delayer attribute of the <camelContext> tag as shown below:

<camelContext id="camel" delayer="500" xmlns="http://activemq.apache.org/camel/schema/spring">
    <route>
        <from uri="direct:start"/>
        <to uri="mock:result"/>
    </route>
</camelContext>

Configuring using Java

You can enable delaying messages by setting the delay value on the CamelContext as shown:

camelContext.setDelayer(200);

Configuring on route level

You can also configure it on both camel context and per route as you like. Per route will override the camel context setting.

For example, the route below is only the first route that has a delayer with 200 milliseconds.

<camelContext>
   <route delayer="200">
     ...
   </route>

   <route>
     ...
   </route>
</camelContext>

And in Java DSL:

from("direct:start").delayer(200)
    .to("mock:result")