[CAMEL-9882] Support importing Camel XML configuration files in Camel CDI

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.18.0
• Component/s: camel-cdi
• Estimated Complexity: Unknown
• Assignee: Antonin Stefanutti
• Reporter: Antonin Stefanutti
• Created: 19/Apr/16 12:45
• Updated: 28/Apr/16 14:34
• Resolved: 28/Apr/16 14:34

Description

So that user can use their existing Camel XML files with CDI or use Camel XML for configuring their Camel contexts.

For example, given the following Camel XML:

<camelContext id="test" errorHandlerRef="error-handler"
              xmlns="http://camel.apache.org/schema/spring">

    <errorHandler id="error-handler"
                  type="LoggingErrorHandler"
                  logName="error"
                  level="WARN"/>

    <route>
        <from uri="direct:inbound"/>
        <choice>
            <when>
                <simple>${body} contains 'exception'</simple>
                <throwException ref="failure"/>
            </when>
            <otherwise>
                <transform>
                    <simple>Response to ${body}</simple>
                </transform>
                <to uri="mock:outbound"/>
            </otherwise>
        </choice>
    </route>

</camelContext>

And following bean:

@Named
@Produces
Exception failure = new CamelException("failure message!");

The Camel XML elements with an id attributes (errorHandler in the example) get deployed as CDI beans and vice-versa the ref attributes can refer to CDI beans (@Named("failure") in the example).

The current proposition is to expose an annotation that the developer can use on any CDI bean to declare the Camel XML files to import in her/his Camel CDI application, e.g.:

@ImportResource("imported-context.xml")
class MyCamelCdiBean {
}